Bosch Appliances Webcam 3122 475 22015en User Manual

INTEGRUS

Installation and User Instructions

en Integrus

Language Distribution

System

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INTEGRUS | Installation and User Instuctions | Table of contents

Table of contents

System description and planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.1

1.2

System overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

System technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.2.1 IR radiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.2.2 Signal Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.2.3 Quality modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.2.4 Carriers and channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Aspects of infra-red distribution systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3.1 Directional sensitivity of the receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3.2 The footprint of the radiator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3.3 Ambient lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3.4 Objects, surfaces and reflections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.3.5 Positioning the radiators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.3.6 Overlapping footprints and multipath effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Planning an Integrus infra-red radiation system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.4.1 Rectangular footprints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.4.2 Planning radiators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.4.3 Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Setting the radiator delay switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.5.1 System with one transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.5.1.1 Determining delay switch positions by measuring the cable lengths . . . . . . . . . . . . . .9

1.5.1.2 Determining delay switch positions by using a delay measuring tool . . . . . . . . . . . .10

1.5.2 System with two or more transmitters in one room . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.5.3 System with more than 4 carriers and a radiator under a balcony . . . . . . . . . . . . . . . . . . . 13

Testing the coverage area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.3

1.4

1.5

1.6

Integrus Transmitters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

2.1

2.2

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Audio interface modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.2.1 Integrus DCN interface module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.2.2 Mounting an interface module in the transmitter housing . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.2.3 Upgrading an LBB4502/xx to an INT-TX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.2.3.1Removing the main PCB and the rear panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

2.2.3.2Installation of the INT-TXK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.3.1 Connecting the DCN Next Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.3.2 Connecting the DCN system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.3.3 Connecting other external audio sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.3.4 Connecting an emergency signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.3.5 Connecting to another transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Using the configuration menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.4.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.4.2 Navigate through the menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2.4.3 Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2.3

2.4

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2.5

Configuration and operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2.5.1 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2.5.2 Main menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2.5.3 View transmitter status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2.5.4 View fault status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

2.5.5 Set monitoring options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2.5.6 View version information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2.5.7 Set transmission mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2.5.8 Set network mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2.5.9 Set number of channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

2.5.10 Set channel quality and assign inputs to channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

2.5.11 Set channel names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

2.5.12 Disable or enable carriers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

2.5.13 View carrier assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

2.5.14 Configure auxiliary inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

2.5.15 Set sensitivity of the inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

2.5.16 Enable / disable IR-monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

2.5.17 Enable / disable headphone output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

2.5.18 Choose transmitter name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

2.5.19 Reset all options to factory default values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Integrus Radiators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

3.1

Medium and High Power Radiators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

3.1.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

3.1.2 Radiator status indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

3.1.3 Mounting the radiators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

3.1.4 Connecting radiators to the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

3.1.5 Using the output power selection switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Low Power Wide Beam Radiator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

3.2.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

3.2.2 Radiator Status Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

3.2.3 Mounting the Radiator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

3.2

Integrus Receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

4.1

4.2

4.3

4.4

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Reception test mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Receiver headphones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Integrus Charging Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

5.1

5.2

5.3

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Wall mounting the charging cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Charging procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Troubleshooting

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

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Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

7.1

7.2

System Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Transmitters and Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

7.2.1 Infra Red Transmitters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

7.2.2 Transmitter Kit Board range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

7.2.3 Integrus DCN interface module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Radiators and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

7.3.1 Medium and High Power Radiators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

7.3.2 Wall Mounting Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

7.3.3 Low Power Wide Beam Radiator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Receivers, Battery Packs and Charging Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

7.4.1 Pocket Receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

7.4.2 Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

7.4.3 Charging Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Connection details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

7.5.1 Mains cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

7.5.2 Audio cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

7.5.3 Earphones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

7.5.4 Emergency switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Guaranteed rectangular footprints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

7.3

7.4

7.5

7.6

Product index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

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INTEGRUS | Installation and User Instructions | System description and planning

en | 1

Interface modules

1 System description and

One of two different interface modules can be mount-

ed in the transmitter housing to connect the transmitter

to a wide range of conference systems:

planning

1.1 System overview

•

LBB 3423/20 Integrus DCN interface module to

connect to the Digital Congress Network (DCN).

LBB 3222/04 Integrus audio input and interpreters

module to connect to analogue discussion and

conference systems (such as CCS 800) or to

LBB 3422/20 6-channel interpreters desks.

Integrus is a system for wireless distribution of audio

signals via infra-red radiation. It can be used in a

simultaneous interpretation system for international

conferences where multiple languages are used.

To enable all participants to understand the proceed-

ings, interpreters simultaneously translate the speaker’s

language as required. These interpretations are distrib-

uted throughout the conference venue, and delegates

select the language of their choice and listen to it

through headphones.

•

Infra-red radiators

Three types of radiators are available:

•

LBB 3410/05 low power wide beam radiator for

small conference venues

LBB 4511/00 medium-power radiator for small/

medium conference venues

LBB 4512/00 high-power radiator for medium/large

conference venues

The Integrus system can also be used for music distri-

bution (mono as well as stereo).

All three types can be switched between full and half

power use. They can be mounted on walls, ceilings or

floor stands.

Infra-red receivers

Three multi-channel infra-red receivers are available:

•

LBB 4540/04 for 4 audio channels

LBB 4550/08 for 8 audio channels

LBB 4540/32 for 32 audio channels

Figure 1.1

Integrus system overview

They can operate with a rechargeable NiMH battery

pack or with disposable batteries. Charging circuitry is

incorporated in the receiver.

(with DCN-system as input)

The Integrus Language Distribution System comprises

one or more of the following:

Charging equipment

Equipment is available for charging and storing 56

infra-red receivers. Two versions are available:

Infra-red transmitter

The transmitter is the core of the Integrus system. Four

types are available:

•

LBB 4560/00 charging suitcase for portable systems

LBB 4560/50 charging cabinet for permanent

systems

•

INT-TX04 with inputs for 4 audio channels

INT-TX08 with inputs for 8 audio channels

INT-TX16 with inputs for 16 audio channels

INT-TX32 with inputs for 32 audio channels

The transmitter can be directly connected to the DCN

Next Generation conference system (see section 2.3).

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INTEGRUS | Installation and User Instructions | System description and planning

en | 2

1.2 System technology

The signal processing in the transmitter consists of the

following main steps (see figure 1.3):

1.2.1 IR radiation

1. A/D conversion - Each analogue audio channel is

converted to a digital signal.

The Integrus system is based on transmission by mod-

ulated infra-red radiation. Infra-red radiation forms

part of the electro-magnetic spectrum, which is com-

posed of visible light, radio waves and other types of

radiation. It has a wavelength just above that of visible

light. Like visible light, it is reflected from hard sur-

faces, yet passes through translucent materials such as

glass. The infra-red radiation spectrum in relation to

other relevant spectra is shown in figure 1.2.

2. Compression - The digital signals are compressed

to increase the amount of information that can be

distributed on each carrier. The compression factor

is also related to the required audio quality.

3. Protocol Creation - Groups of up to four digital

signals are combined into a digital information

stream. Extra fault algorithm information is added.

This information is used by the receivers for fault

detection and correction.

100

4. Modulation - A high frequency carrier signal is

phase-modulated with the digital information

stream.

5. Radiation – Up to 8 modulated carrier signals are

combined and sent to the IR radiators, which con-

vert the carrier signals to modulated infra-red light.

400

In the IR receivers a reverse processing is used to con-

vert the modulated infra-red light to separate analogue

audio channels.

500

600

700

800

900

1000 nm

Daylight spectrum

Sensitivity of the human eye

IR radiator

Sensitivity of IR sensor

1.2.3 Quality modes

The Integrus system can transmit audio in four differ-

Sensitivity of IR sensor with daylight filter

ent quality modes:

Figure 1.2

Infra-red radiation spectrum in relation to other

spectra

•

Mono, standard quality, maximum 32 channels

Mono, premium quality, maximum 16 channels

Stereo, standard quality, maximum 16 channels

Stereo, premium quality, maximum 8 channels

1.2.2 Signal Processing

The Integrus system uses high frequency carrier signals

(typically 2-8 MHz) to prevent interference problems

with modern light sources (see section 1.3.2). The digi-

tal audio processing guarantees a constant high audio

quality.

The standard quality mode uses less bandwidth and

can be used for transmitting speech. For music the pre-

mium quality mode gives near CD quality.

Audio

Channel

A/D Conversion

& Compression

Protocol Creation

Carrier (to IR Radiators)

& Modulation

A/D Conversion

& Compression

Audio

Channel

Figure 1.3

Overview of the signal processing (for one carrier)

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1.2.4 Carriers and channels

The Integrus system can transmit up to 8 different car-

rier signals (depending on the transmitter type). Each

carrier can contain up to 4 different audio channels.

The maximum number of channels per carrier is

dependent on the selected quality modes. Stereo sig-

nals use twice as much bandwidth as a mono signals,

premium quality uses twice as much bandwidth as

standard quality.

Per carrier a mix of channels with different quality

modes is possible, as long as the total available band-

width is not exceeded. The table below lists all possible

channel combinations per carrier:

Figure 1.4

Directional characteristics of the receivers

Channel quality

Mono

Stereo

Bandwidth

4 x 10 kHz

Standard

Premium

Standard

Premium

2 x 10 kHz and 1 x 20 kHz

Possible

number of

channels

per carrier

2 x 10 kHz and 1 x 10 kHz (left) and 1 x 10 kHz (right)

1 x 20 kHz and 1 x 10 kHz (left) and 1 x 10 kHz (right)

2 x 10 kHz (left) and 2 x 10 kHz (right)

2 x 20 kHz

1 x 20 kHz (left) and 1 x 20 kHz (right)

1.3.2 The footprint of the radiator

1.3 Aspects of infra-red

distribution systems

The coverage area of a radiator depends on the num-

ber of transmitted carriers and the output power of the

radiator. The coverage area of the LBB 4512/00

radiator is twice as large as the coverage area of the

LBB 4511/00. The coverage area can also be doubled

by mounting two radiators side by side. The total

radiation energy of a radiator is distributed over the

transmitted carriers. When more carriers are used, the

coverage area gets proportionally smaller. The receiver

A good infra-red distribution system ensures that all

delegates in a conference venue receive the distributed

signals without disturbance. This is achieved by using

enough radiators, placed at well planned positions, so

that the conference venue is covered with uniform IR-

radiation of adequate strength.

There are several aspects that influence the uniformity

and quality of the infra-red signal, which must be con-

sidered when planning an infra-red radiation distribu-

tion system. These are discussed in the next sections.

requires a strength of the IR signal of 4 mW/m per

carrier to work without errors (resulting in a 80 dB

S/N ratio for the audio channels). The effect of the

number of carriers on the coverage area can be seen in

figure 1.5 and figure 1.6. The radiation pattern is the

area within which the radiation intensity is at least the

minimum required signal strength.

1.3.1 Directional sensitivity of the receiver

The sensitivity of a receiver is at its best when it is

aimed directly towards a radiator. The axis of maxi-

mum sensitivity is tilted upwards at an angle of 45

degrees (see figure 1.4). Rotating the receiver will

decrease the sensitivity. For rotations of less than

+/- 45 degrees this effect is not large, but for larger

rotations the sensitivity will decrease rapidly.

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m²

2000

LBB 4512/00

1800

LBB 4511/00

1600

LBB 3410/05

1400

1200

1000

800

600

400

200

Figure 1.8

The radiator mounted at 45° to the ceiling

Figure 1.5

Total coverage area of LBB 3410/05, LBB 4511/00

and LBB 4512/00 for 1 to 8 carriers

Figure 1.6

Polar diagram of the radiation pattern for 1, 2, 4

and 8 carriers

Figure 1.9

The radiator mounted perpendicular

(at 90°) to the ceiling

The cross section of the 3-dimensional radiation pat-

tern with the floor of the conference venue is known as

the footprint (the white area in figure 1.7 to figure 1.9).

This is the floor area in which the direct signal is

strong enough to ensure proper reception, when the

receiver is directed towards the radiator. As shown, the

size and position of the footprint depends on the

mounting height and angle of the radiator.

1.3.3 Ambient lighting

The Integrus system is practically immune for the

effect of ambient lighting. Fluorescent lamps (with or

without electronic ballast or dimming facility), such as

TL lamps or energy saving lamps give no problems

with the Integrus system. Also sunlight and artificial

lighting with incandescent or halogen lamps up to 1000

lux give no problems with the Integrus system.

When high levels of artificial lighting with incandes-

cent or halogen lamps, such as spotlights or stage light-

ing are applied, you should directly point a radiator at

the receivers in order to ensure reliable transmission.

For venues containing large, unscreened windows, you

must plan on using additional radiators.

For events taking place in the open air a site test will

be required in order to determine the required amount

of radiators. With sufficient radiators installed, the

receivers will work without errors, even in bright sun-

light.

Figure 1.7

The radiator mounted at 15° to the ceiling

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1.3.4 Objects, surfaces and reflections

The presence of objects in a conference venue can

influence the distribution of infra-red light. The texture

and colour of the objects, walls and ceilings also plays

an important role.

Infra-red radiation is reflected from almost all surfaces.

As is the case with visible light, smooth, bright or shiny

surfaces reflect well. Dark or rough surfaces absorb

large proportions of the infra-red signal (see figure

1.10). With few exceptions it cannot pass through mate-

rials that are opaque to visible light.

Figure 1.11 Infra-red signal blocked by a person in front of

the participant

100%

40%

100%

80%

Figure 1.10 The texture of the material determines how

much light is reflected and how much is

absorbed

Problems caused by shadows from walls or furniture

can be solved by ensuring that there are sufficient radi-

ators and that they are well positioned, so that a strong

enough infra-red field is produced over the whole con-

ference area. Care should be taken not to direct radia-

tors towards uncovered windows, as most of this radia-

tion will subsequently be lost.

Figure 1.12 Infra-red signal not blocked by a person in front

of the participant

The figures below illustrate how infra-red radiation can

be directed to conference participants. In figure 1.13,

the participant is situated clear from obstacles and

walls, so a combination of direct and diffused radiation

can be received. Figure 1.14 shows the signal being

reflected from a number of surfaces to the participant.

1.3.5 Positioning the radiators

Since infra-red radiation can reach a receiver directly

and/or via diffused reflections, it is important to take

this into account when considering the positioning of

the radiators. Though it is best if receivers pick up

direct path infra-red radiation, reflections improve the

signal reception and should therefore not be min-

imised. Radiators should be positioned high enough

not to be blocked by people in the hall (see figure 1.11

and figure 1.12).

Figure 1.13 Combination of direct and reflected radiation

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Figure 1.14 Combination of several reflected signals

Figure 1.16 Radiator positioning in a conference hall with

auditorium seating and podium

For concentrically arranged conference rooms, central-

ly placed, angled radiators located high up can cover

the area very efficiently. In rooms with few or no

reflecting surfaces, such as a darkened film-projection

room, the audience should be covered by direct path

infra-red radiation from radiators positioned in front.

When the direction of the receiver changes, e.g. with

varying seat arrangements, mount the radiators in the

corners of the room (see figure 1.15).

If the audience is always directed towards the radia-

tors, you do not need radiators at the back

(see figure 1.16).

If the path of the infra-red signals is partially blocked,

e.g. under balconies, you should cover the ‘shaded’

area with an additional radiator (see figure 1.17).

Figure 1.17 Radiator for covering seats beneath a balcony

The figures below illustrate the positioning of the

radiators:

1.3.6 Overlapping footprints and multipath

effects

When the footprints of two radiators partly overlap,

the total coverage area can be larger than the sum of

the two separate footprints. In the overlap area the sig-

nal radiation power of two radiators are added, which

increases the area where the radiation intensity is larg-

er than the required intensity.

However, differences in the delays of the signals

picked up by the receiver from two or more radiators

can result in that the signals cancel each other out

(multi path effect). In worst-case situations this can lead

to a loss of reception at such positions (black spots).

Figure 1.15 Radiator position for covering seats in a square

arrangement

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Figure 1.18 and figure 1.19 illustrate the effect of over-

lapping footprints and differences in signal delays.

1.4 Planning an Integrus infra-red

radiation system

1.4.1 Rectangular footprints

Determining the optimal number of infra-red radiators

required to give 100% coverage of a hall can normally

only be done by performing a site test. However, a

good estimation can be made by using ‘guaranteed rec-

tangular footprints’. Figure 1.20 and figure 1.21 show

what is meant by a rectangular footprint. As can be

seen, the rectangular footprint is smaller than the total

footprint. Note that in figure 1.21 the ‘offset’ X is nega-

tive because the radiator is actually mounted beyond

the horizontal point at which the rectangular footprint

starts.

Figure 1.18 Increased coverage area caused by added

radiation power

Figure 1.20 A typical rectangular footprint for a mounting

angle of 15°

Figure 1.19 Reduced coverage area caused by differences

in cable signal delay

The lower the carrier frequency, the less susceptible

the receiver is for differences in signal delays.

The signal delays can be compensated by using the

delay compensation switches on the radiators

(see section 1.5).

Figure 1.21 A typical rectangular footprint for a mounting

angle of 90°

The guaranteed rectangular footprints for various num-

ber of carriers, mounting heights and mounting angles

can be found in section 7.6. The height is the distance

from the reception plane and not from the floor.

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Guaranteed rectangular footprints can also be calculat-

ed with the footprint calculation tool (available on the

documentation CD-ROM). The given values are for

one radiator only, and therefore do not take into con-

sideration the beneficial effects of overlapping foot-

prints. The beneficial effects of reflections are also not

included. As rule of thumb can be given for systems

with up to 4 carriers, that if the receiver can pick up

the signal of two adjacent radiators the distance

between these radiators can be increased by a factor

1.4 approximately (see figure 1.22).

50m

Figure 1.23 Radiators with equal cable length

When radiators are loop-through connected, the

cabling between each radiator and the transmitter

should be as symmetrical as possible (see figure 1.24

and figure 1.25). The differences in cable signal delays

can be compensated with the signal delay compensa-

tion switches on the radiators.

1.4 L

Figure 1.22 The effect of overlapping footprints

1.4.2 Planning radiators

Use the following procedure to plan the radiators:

1. Follow the recommendations in section 1.3 in order

to determine the positioning of the radiators.

2. Look up (in the table) or calculate (with the foot-

print calculation tool) the applicable rectangular

footprints.

3. Draw the rectangular footprints in the lay-out of the

room.

4. If the receiver can pick up the signal of two adja-

cent radiators in some areas, determine the overlap

effect and draw the footprint enlargement(s) in the

lay-out of the room.

Figure 1.24 Asymmetrical arrangement of radiator

cabling (to be avoided)

5. Check whether you have sufficient coverage with

the radiators at the intended positions.

6. If not so, add additional radiators to the room.

See figure 1.15, figure 1.16 and figure 1.17 for examples

of a radiator lay out.

1.4.3 Cabling

Signal delay differences can occur due to differences in

the cable length from the transmitter to each radiator.

In order to minimize the risk of black spots, use equal

cable length from transmitter to radiator if possible (see

figure 1.23).

Figure 1.25 Symmetrical arrangement of radiator cabling

(recommended)

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1.5 Setting the radiator delay

switches

The next sections describe how to calculate the delay

switch positions manually for systems with one trans-

mitter, or two or more transmitters. See the delay

switch calculation tool for the procedures how to calcu-

late the delay switch positions automatically.

As described in section 1.3.6, differences in the delays

of the signals picked up by the receiver from two or

more radiators can cause black spots as a result of the

multi path effect.

Tip: The delay switch calculation tool eases

the calculation of the delay switch positions.

The signals picked up by the receiver are delayed by:

•

the transmission from transmitter to radiator

through the cable (cable signal delay)

the transmission from radiator to receiver through

the air (radiation signal delay)

for systems with two or more transmitters: the

transmission through the slave transmitter(s)

1.5.1 System with one transmitter

1.5.1.1 Determining delay switch positions by

measuring the cable lengths

Use the following procedure to determine the delay

switch position based on cable lengths:

1. Look up the cable signal delay per meter of the

used cable. The manufacturer specifies this factor.

2. Measure the lengths of the cables between the

transmitter and each radiator.

3. Multiply the lengths of the cables between the

transmitter and each radiator with the cable signal

delay per meter. These are the cable signal delays

for each radiator.

To compensate the signal delay differences, the delay of

each radiator can be increased. These signal delays can

be set with the delay switches at the back of the radiator.

The cable signal delays can be determined in the fol-

lowing two ways:

•

by measuring the cable lengths

by measuring the impulse response time with a

delay measurement tool

4. Determine the maximum signal delay.

5. Calculate for each radiator the signal delay differ-

ence with the maximum signal delay.

6. Divide the signal delay difference by 33. The

rounded off figure is the signal delay switch posi-

tion for that radiator.

7. Add delay switch positions for radiators under a

balcony, if applicable (see section 1.5.3).

8. Set the delay switches to the calculated switch posi-

tions.

In both cases the cable signal delays can be calculated

manually and with the delay switch calculation tool

(available on the documentation CD-ROM).

It is not necessary to calculate the cable signal delay in

case:

•

the radiators are directly connected to the transmit-

ter with equal cable length;

•

radiators are loop-through connected, but with less

than 5 m distance between the first and last radiator

in a trunk, and with equal cable length between the

first radiator in each trunk and the transmitter.

Caution: Turn the delay switches carefully

to a new position until you feel that it

clicks into position, to prevent that a

switch is positioned between two num-

bers, which would result in a wrong delay

setting.

In these cases set the delay switches on all radiators to

zero and determine whether to compensate for radia-

tion signal delay (see section 1.5.3).

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1.5.1.2 Determining delay switch positions by

using a delay measuring tool

Note: For systems with a cable length dif-

ference of more than 50 meters, it is rec-

ommended to use a measurement tool to

determine the delay differences in order

to calculate the delay switch positions.

The most accurate way to determine the cable signal

delays is to measure the actual signal delay for each

radiator as described in the following procedure:

1. Disconnect the cable from a radiator output of the

transmitter and connect this to a delay measure-

ment tool.

Figure 1.26 and table 1.1 illustrate the calculation of the 2. Disconnect a radiator from this cable.

cable signal delay.

3. Measure the impulse response time (in ns) of the

cable(s) between the transmitter and the radiator.

4. Reconnect the cable to the radiator and repeat

steps 2 to 4 for the other radiators that are connect-

ed to the same transmitter output.

5. Reconnect the cable to the transmitter and repeat

step 1 to 5 for the other radiator outputs of the

transmitter.

6. Divide the impulse response times for each radiator

by two. These are the cable signal delays for each

radiator.

7. Determine the maximum signal delay.

8. Calculate for each radiator the signal delay differ-

ence with the maximum signal delay.

9. Divide the signal delay difference by 33. The

rounded off figure is the delay switch position for

that radiator.

20m

30m

20m

Figure 1.26 System with five radiators and measured cable

lengths

10. Add delay switch positions to radiators under a bal-

cony, if applicable (see section 1.5.3)

11. Set the delay switches to the calculated delay switch

positions.

Table 1.1

Calculation of the cable signal delays

Radiator

number

Total cable

length [m]

Cable signal delay

per meter [ns/m]

Cable signal

delay [ns]

Signal delay

difference [ns]

Delay switch

position

5.6

30*5.6 = 168

50*5.6 = 280

20*5.6 = 112

30*5.6 = 168

50*5.6 = 280

280-168 = 112

112/33 = 3.39 = 3

0/33 = 0

30+20 = 50

280-280 =

280-112 = 168

280-168 = 112

168/33 = 5.09 = 5

112/33 = 3.39 = 3

0/33 = 0

30+20 = 50

280-280 =

Note: The used cable signal delay per

meter is an example. Use the actual sig-

nal delay per meter in this calculation as

specified by the manufacturer.

Caution: Turn the delay switches carefully

to a new position until you feel that it

clicks into position, to prevent that a

switch is positioned between two

numbers, which would result in a wrong

delay setting.

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584 ns

350 ns

1.5.2 System with two or more transmitters

in one room

When radiators in one multi purpose room are con-

nected to two transmitters, an extra signal delay is

added by:

•

Transmission from master transmitter to slave trans-

mitter (cable signal delay).

237 ns

•

Transmission through the slave transmitter.

Use the following procedure to determine the delay

switch positions in a master-slave configuration:

1. Calculate the cable signal delay for each radiator,

using the procedures for a system with one trans-

mitter.

563 ns

339 ns

Figure 1.27 System with five radiators and measured

impulse response times

2. Calculate the signal delay of the cable between the

master and the slave transmitter in the same way as

for cables between a transmitter and a radiator.

Figure 1.27 and table 1.2 illustrate the calculation of

the signal delays and the delay switch positions.

Table 1.2 Calculation of the delay switch positions of a system with one transmitter

Radiator

number

Impulse response

time [ns]

Cable signal

delay [ns]

Signal delay

difference [ns]

Delay switch

position

350

584

237

339

563

350/2 = 175

584/2 = 292

237/2 = 118

339/2 = 169

573/2 = 281

292-175 = 117

117/33 = 3.54 = 4

0/33 = 0

292-292 =

292-118 = 174

292-169 = 123

292-281 = 11

174/33 = 5.27 = 5

123/33 = 3.73 = 4

11/33 = 0.33 = 0

3. Add to the cable signal delay of the cable between

the master and the slave, the delay of the slave

transmitter itself: 33 ns. This gives the master-to-

slave signal delay.

4. Add the master-to-slave signal delay to each radia-

tor connected to the slave transmitter.

5. Determine the maximum signal delay.

6. Calculate for each radiator the signal delay differ-

ence with the maximum signal delay.

7. Divide the signal delay difference by 33. The

rounded off figure is the signal delay switch posi-

tion for that radiator.

Note: The calculated delay switch posi-

tions based on impulse response time

can differ from the calculated delay

switch positions based on cable lengths.

This is caused by the accuracy of the

measurements and the accuracy of the

cable signal delay factor per meter as

specified by the manufacturer of the

cable. If the impulse response time is

measured correctly, the calculated delay

switch positions will be the most accu-

rate.

8. Add delay switch positions to radiators under a bal-

cony, if applicable (see section 1.5.3)

9. Set the delay switches to the calculated delay switch

positions.

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20m

30m

Caution: Turn the delay switches carefully

to a new position until you feel that it

clicks into position, to prevent that a

switch is positioned between two

numbers, which would result in a wrong

delay setting.

20m

Tx1

20m

30m

50m

Tx2

Note: When a master-slave configuration

is used for rooms which are always sepa-

rated, the delay switch positions can be

determined per system and the delay

caused by transmission from master to

slave transmitter can be ignored.

20m

R10

20m

30m

Figure 1.28, table 1.1, table 1.3 and table 1.4 illustrate

the calculation of the extra master-slave signal delay.

Figure 1.28 System with master and slave transmitter in

multi purpose room

Table 1.3

Calculation of the master-to-slave signal delays

Cable length

Cable

signal delay

[ns]

Signal delay

slave transmitter

[ns]

Master-to-slave

signal delay [ns]

master-slave

signal delay

transmitter [m]

per meter [ns/m]

5.6

50 x 5.6 = 280

280 + 33 = 313

Table 1.4

Calculation of the delay switch positions of a system with two transmitters

Radiator Transmitter

number

Master-to- Cable signal

Total signal

delay [ns]

Signal delay

difference

Delay switch

position

slave signal

delay [ns]

Master

Slave

168

0+168 = 168

0+280 = 280

0+112 = 112

593-168 = 425

593-280 = 313

593-112 = 481

593-168 = 425

593-280 = 313

593-481 = 112

425/33 = 12.88 = 13

280

112

168

280

168

280

112

168

280

313/33 = 9.48 =

481/33 = 14.58 = 15

425/33 = 12.88 = 13

0+168 = 168

0+280 = 280

313+168 = 481

313+280 = 593

313+112 = 425

313+168 = 481

313+280 = 593

313/33 = 9.48 =

112/33 = 3.39 =

0/33 =

313

Slave

593-593 =

Slave

593-425 = 168

593-481 = 112

168/33 = 5.09 =

112/33 = 3.39 =

0/33 =

Slave

593-593 =

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1.5.3 System with more than 4 carriers and a

radiator under a balcony

Testing during a meeting

1. Set a receiver in the Test-mode and select the high-

est available carrier. The quality of the received car-

rier signal is indicated on the display of the receiver

(see section 4.3).

2. Test all positions and directions (see next para-

graph). The quality indication should be between

00 and 39 (good reception).

Figure 1.29 illustrates a situation in which a radiation

signal delay occurs and which can be compensated for.

For systems with more than four carriers, add one

delay switch position per 10 meter (33 feet) difference

in signal path length to the radiators which are closest

to the overlapping coverage area. In figure 1.29 the sig-

nal path length difference is 12 meter. Add one delay

switch position to the calculated switch position(s) for

the radiator(s) under the balcony.

Testing all positions and directions

With the transmitter and receiver in one of the two test

modes, go around the conference hall and test the

reception quality at every position where the infra-red

signals must be received. When an area is detected

where there is bad reception or even no reception at

all, three main causes must be considered:

16m

Bad coverage

The receiver can not pick-up infra-red radiation of ade-

quate strength. This can be because the tested position

is outside the footprint of the installed radiators or the

radiation is blocked by obstacles such as a column, an

overhanging balcony or other large objects.

Figure 1.29 Radiation path length difference for two radiators

1.6 Testing the coverage area

Check that you used the correct footprints for the sys-

tem design, that radiators with enough output power

are installed and that a radiator is not accidentally

switched to half power operation. When the bad recep-

tion is caused by a blocked radiation path, try to

remove the blocking obstacle or add an extra radiator

to cover the shaded area.

An extensive reception quality test must be done to

make sure that the whole area is covered with IR radi-

ation of adequate strength and that there are no black

spots. Such a test can be done in two ways:

Testing during installation

1. Check that all radiators are connected and powered

up and that no loose cables are connected to a radi-

Black spots

ator. Switch the transmitter off and on to re-initialise The receiver picks-up IR signals from two radiators

the auto equalisation of the radiators.

2. Set the transmitter in the Test-mode (see section

2.5.7). For each channel, a different test tone fre-

quency will be transmitted.

3. Set a receiver on the highest available channel and

listen via the headphones to the transmitted test

tone.

which cancel out each other. The multipath effect can

be identified by the observation that the bad reception

only occurs along a specific line and/or when good

reception returns when the receiver is rotated to anoth-

er direction. This can be confirmed by keeping the

receiver in the position and direction with the bad

reception and then either shading-off the radiation

from one radiator with your hand or switching off one

radiator. If this improves the reception quality, then the

multipath effect is causing the problem. Note that IR

radiation that is reflected from a surface with a high

reflectabiliy can also cause multipath problems.

4. Test all positions and directions (see next para-

graph).

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Black spots can occur in case a transmitter is located in

the same room as the radiators. In that case, disable

the mini IR radiator of the transmitter with the config-

uration menu (see section 2.5.16).

Check that the signal delay compensation switches on

the radiators are set to the correct value and that a

switch is not accidentally positioned between two

numbers. Re-check your system design. When neces-

sary, reduce the distance between the two radiators

that cause the problem and/or add an extra radiator.

Note that due to the physical characteristics of the sig-

nal distribution, it is not always possible to completely

avoid multi path effects.

Interference from IR systems

IR assistive hearing systems and IR microphones oper-

ating at frequencies above 2 MHz, can disturb the

reception at the lowest carriers. If such is the case,

disable the lowest two carriers (see section 2.5.12) and

re-check the reception.

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2 Integrus Transmitters

2. Mini IR-radiator – Four IREDs, transmitting the

same infra-red signal as the radiator output.

This can be used for monitoring purposes.

2.1 Description

They can be disabled via the configuration menu.

3. Menu display – A 2x16 character LCD-display

gives information about the transmitter status. It is

also used as a an interactive display for configuring

the system.

4. Menu button – A turn-and-push button to operate

the configuration software in combination with the

display (3).

5. Monitoring headphone output – A 3.5 mm

(0.14 inch) jack socket to connect a headphone for

monitoring purposes. It can be disabled via the

configuration menu.

The transmitter is the central element of the Integrus

system. It accepts asymmetrical audio sources from a

maximum of 32 external channels (dependent on the

transmitter type) and can be used with the Digital

Congress Network (DCN) and DCN Next Generation

conference systems. It can also be used with analogue

discussion and interpretation systems (e.g. CCS 800

with up to 12 interpreter desks), or as a stand-alone

system distributing external audio sources.

The transmitter is suitable for either table-top or

19-inch rack-mounted use. Four feet (for table top use)

and two mounting brackets (for rack mounting) are

supplied. The mounting brackets can also be used to

mount the transmitter to a flat surface.

Note: The mini IR-radiator and the head-

phone output can also be permanently

disabled by removing two resistors.

Consult your regular service contact for

more information.

Network

Figure 2.1

Transmitter with optional mounting brackets and

table-top feet

Figure 2.3 Transmitter, rear view

Figure 2.3:

1. Interface module slot – An optional audio inter-

face module can be mounted in the transmitter

housing. Its connectors are accessible via an open-

ing at the back of the transmitter.

2. Emergency switch connector – A terminal block

socket for a single, ‘normally open’ switch. When

the switch is closed, the audio signal on the Aux-

right input is distributed on all output channels,

overriding all other audio inputs. A matching cable

connector is provided.

Figure 2.2 Transmitter, front view

Figure 2.2:

1. Mains on/off switch – After switching the mains

on, the transmitter starts up and the display (3) will

light-up.

The emergency contact does not function when the

network mode of the transmitter is enabled (see

section 2.5.8) and it cannot connect to the optical

network (e.g. because the control unit of the DCN

Next Generation conference system is switched off).

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3. Auxiliary audio inputs – Two female XLR con-

en | 16

2.2 Audio interface modules

nectors for extra audio inputs. They can be used to

connect auxiliary symmetrical audio signals such as

a music installation, the floor language or emer-

gency messages.

2.2.1 Integrus DCN interface module

An Integrus DCN interface module is required if the

transmitter is to be used with the DCN Conference

System.

4. Audio signal inputs – 4, 8, 16 or 32 cinch plugs to

connect external asymmetrical audio input signals.

The number of connectors depends on the trans-

mitter type.

The module must be mounted in the transmitter hous-

ing (see section 2.2.2).

5. Earth connection point – Only used for factory

testing purposes.

6. Radiator signal loop-through input – A HF BNC

connector to loop-through the radiator output of

another transmitter.

7. Radiator signal outputs – Six HF BNC connec-

tors, used to connect the radiators. Up to 30 radia-

tors can be loop-through connected to each output.

8. Optical network connections – Two connections

used to connect directly to the DCN Next

Generation conference system with an optical

network cable.

9. Mains input – Euro mains socket. The transmitter

has automatic mains voltage selection. A mains

cable is provided.

Figure 2.4 Integrus DCN interface module

Figure 2.4:

1. DCN output connector – A 6-pole trunk output

female DIN connector for loop-through intercon-

nection with DCN units.

2. DCN input cable – A 2 m (6 ft 6 in) trunk input

cable with 6-pole male DIN connector for loop-

through interconnection with DCN units.

3. PCB connector

4. Mounting plate

When the DCN system supply voltage on the trunk

input switches off, the Integrus DCN interface module

automatically switches the transmitter to standby.

When the DCN system supply voltage switches on, the

transmitter is switched to operating mode.

Note: When the Integrus DCN interface

module is used in combination with audio

signals connected to the cinch inputs, the

DCN and audio signals on corresponding

inputs are mixed.

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2.2.2 Mounting an interface module in the

transmitter housing

Warning: To prevent damage to the PCB

connectors (4), be sure that the connec-

tors are aligned properly before pushing

the module in.

Warning: Before opening the transmitter

housing, make sure that the mains

power and all other connections are

disconnected!

Warning: ICs and many other electronic

components are susceptible to electrostatic

discharge (ESD). Take preventive measures

when handling the interface modules. Keep

the PCBs as long as possible in their pro-

Figure 2.5 Interface module slot cover

tective packing. Wear an anti-ESD bracelet.

Follow the instructions below to mount an interface

module in the transmitter housing. The numbers refer

to figure 2.5 and figure 2.6.

1. Remove the top cover of the transmitter housing.

2. Remove the interface module slot cover (1) at the

back of the transmitter. Keep the screws (2).

3. Insert the module (3) (with the components faced

down) into the transmitter housing and push it firm-

ly into the PCB connector (4).

4. Fasten the slot cover (5) to the back of the transmit-

ter housing. Use the screws (2) from step 2.

5. Fasten the module’s PCB to the distance studs (6).

Use the screws (7) provided with the interface

module.

Figure 2.6 Mounting an interface module in the transmitter

housing

6. Close the transmitter housing.

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2.2.3 Upgrading an LBB4502/xx to an INT-TX

2.2.3.1 Removing the main PCB and the rear

panel

To upgrade an LBB4502/xx to an INT-TX the follow-

ing upgrade kits are available:

Follow the instructions below to remove the main PCB

and the rear panel. The numbers refer to figure 2.7

and figure 2.8.

•

INT-TXK04: 4 channel transmitter upgrade kit

INT-TXK08: 8 channel transmitter upgrade kit

INT-TXK16: 16 channel transmitter upgrade kit

INT-TXK32: 32 channel transmitter upgrade kit

Note: The upgrade kits do not contain

new fixing materials. Therefore make

sure to keep all screws and washers.

Each kit comprises the following items:

•

1 (type dependent) rear panel

1 (type dependent) main PCB

1 extra screw for the main PCB

1 glue stud

1. Remove the top cover of the transmitter housing.

2. If the transmitter contains an interface module (1):

Remove the interface module proceeding in reverse

order of mounting. The mounting instructions can be

found in section 2.2.2. Note that the distance studs

of the transmitter module can remain in place.

3. If the transmitter does not contain an interface

module: Remove the interface module slot cover

proceeding as described in section 2.2.2.

Warning: Before opening the transmitter

housing, make sure that the mains power

and all other connections are disconnected.

Warning: ICs and many other electronic

components are susceptible to electrostatic

discharge (ESD). Take preventive measures

when handling the PCBs. Keep the PCBs as

long as possible in their protective packing.

Wear an anti-ESD bracelet.

4. Remove the analogue input/output PCB (2):

•

Loosen the screws (3) between the cinch plugs

on the rear panel (4). The number of screws

depends on the transmitter type.

•

Loosen the screws (5) at the XLR connectors

on the rear panel.

Loosen the screws (6) of the distance studs (7) of

the analogue input/output PCB. Do not lose the

(spring) washers (8).

•

On the main PCB (9) detach the flexible cables

(10) to the analogue input/output PCB. To this

end release the catches (11) on both sides and

pull out the flexible cable. See inset in figure 2.7.

Remove the analogue input/output PCB.

5. Remove three distance studs (7A, 7B and 7C) of the

analogue input/output PCB.

6. On the main PCB (9):

•

Detach the user interface cable (12).

Detach the power supply connector (13).

Loosen the screws (14) of the distance studs.

Do not lose the (spring) washers (15).

7. Remove the main PCB.

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8. Remove the rear panel (4):

2.2.3.2 Installation of the INT-TXK

Follow the instructions below to install the INT-TXK.

•

Loosen the screws (16). Do not lose the (spring)

washers (17).

Pull the connectors (18) of the mains inlet wires

and the earth wire out of the mains socket (19).

Detach the mains socket from the rear panel.

The mains socket is snapped into the rear panel.

The numbers refer to figures 2.9 and 2.10.

1. If the LBB4502/xx transmitter is missing a stud to

mount the new main PCB (2) of the INT-TXK,

paste the glue stud (1) from the upgrade kit to the

bottom of the transmitter. See inset in figure 2.9 for

the recommended pasting position.

2. Click the mains socket (3) in position in the new

rear panel (4).

3. Fit the connectors (5) of the mains inlet wires

(5A – brown, 5B – blue) and the earth wire (5C)

on the pins of the mains socket.

Warning: Pay attention to the correct

position of the mains inlet wires.

See inset in figure 2.9.

4. Mount the rear panel using the screws (6) and the

(spring) washers (7).

Figure 2.7 Removing the main PCB and the rear panel

(steps 1 - 5)

5. Install the main PCB (2) using the screws (8) and

the (spring) washers (9). If the LBB4502/xx trans-

mitter is provided with a stud to mount the main

PCB, use the extra screw from the upgrade kit.

6. On the new main PCB:

•

Fasten the user interface cable (10).

Fasten the power supply connector (11).

7. Mount the three distance studs (12A, 12B and 12C)

of the analogue input/output PCB through the ori-

fices in the new main PCB.

8. Mount the analogue input/output PCB (13):

•

Place the analogue input/output PCB on its dis-

tance studs (12).

16 17

•

Fit the screws (14) with the (spring) washers (15).

Carefully give the screws a few turns. Do not

yet tighten the screws.

Figure 2.8 Removing the main PCB and the rear panel

(steps 6 - 8)

•

Fit and tighten the screws (16) at the XLR con-

nectors on the rear panel.

Fit and tighten the screws (17) between the cinch

plugs on the rear panel.

Tighten the screws (14) of the distance studs

(12).

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9. On the new main PCB (2) fasten the flexible cables

(18) to the analogue input/output PCB. To this end

release the catches (19) on both sides and insert the

flexible cable.

Note: Make sure that the flexible cables

are entirely and correctly inserted into the

6 7

connector as incorrect mounting will lead

to transmitter failure.

See inset in figure 2.10.

10. If the transmitter contained an interface module

5B 5A

(20): Mount the interface module proceeding as

described in section 2.2.2.

11. If the transmitter did not contain an interface

module: Mount the interface module slot cover on

the new rear panel.

Figure 2.9 Installation of the INT-TXK (steps 1 - 6)

12. Mount the top cover of the transmitter housing.

12A

12B

12C

Figure 2.10 Installation of the INT-TXK (steps 7 - 12)

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2.3 Connections

2.3.2 Connecting the DCN system

The transmitter requires the Integrus DCN Interface

This chapter gives an overview of typical system

connections using the INT-TX range transmitter:

Module (LBB 3423/20) to interface with the Digital

Congress Network (DCN). This module must be

mounted in the transmitter housing (see section 2.2.2).

The connections between DCN units and the transmit-

ter are made in a loop-through configuration via the

DCN 6-pole circular connectors on the module’s rear

panel. See the DCN Installation and Operating

Manual for more information.

•

Connecting the DCN Next Generation system

Connecting the DCN system

Connecting other external audio sources

Connecting an emergency signal switch

Connecting to another transmitter

2.3.1 Connecting the DCN Next Generation

The transmitter can be directly connected to the opti-

cal network of the DCN Next Generation conference

system. Use an optical network cable to connect one

of the optical network sockets of the transmitter to the

optical network (see figure 2.11). The network mode

must be enabled with the configuration menu (see

section 2.5.8).

Note: See the DCN Next Generation

Installation and User Instructions for

more information about connecting the

transmitter in the optical network.

Figure 2.12 Connecting the DCN systems to the

Modular IR transmitter

2.3.3 Connecting other external audio

sources

The transmitter has up to 32 audio inputs (depending

on the transmitter type) to interface with external

asymmetrical audio sources, such as congress systems

from other manufacturers or for music distribution.

The audio signals (stereo or mono) are connected to

the audio input cinch connectors.

Netw

ork

Note: When the cinch audio inputs are used

in combination with inputs via one of the

interface modules, the signals on corre-

sponding channels are mixed. This situa-

tion should normally be avoided by using

higher-numbered cinch audio inputs.

Figure 2.11 Connecting the optical network to the modular

IR transmitter

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etw

Figure 2.13 Connecting external audio sources to the

Modular IR transmitter

2.3.4 Connecting an emergency signal

To use the emergency signal function, a switch (nor-

mally-open) must be connected to the emergency

switch connector. The reaction of the transmitter on a

closed switch depends on the configuration of the aux-

iliary inputs (see also section 2.5.14):

Figure 2.14 Connecting an emergency signal

2.3.5 Connecting to another transmitter

The transmitter can be operated in slave mode to loop-

through the IR radiator signals from a master transmit-

ter. One of the four radiator outputs of the master

transmitter is connected with an RG59 cable to the

radiator signal loop-through input of the slave transmit-

ter.

•

If the auxiliary input is 'Mono + Emergency', the

audio signal on the Aux-Right input is distributed

to all output channels, overriding all other audio

inputs.

•

If the auxiliary input is 'Stereo' or 'Stereo to Mono',

the audio signals on the Aux-Left and Aux-Right

inputs are distributed to all output channels, over-

riding all other audio inputs.

The Transmission mode of the slave transmitter must

be set to ‘Slave’ (see section 2.5.7).

Note: When the network mode is enabled

(see section 2.5.8), the emergency signal

function is not available when the control

unit of the DCN Next Generation confer-

ence system is switched off or defective.

ork

MASTER

SLAVE

Figure 2.15 Connecting to another transmitter

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2.4 Using the configuration menu

2.4.1 Overview

All configuration and operation options of the transmit-

ter are set via an interactive menu, using a 2x16 char-

acter LCD display and a ‘turn-and-push’ menu button.

Figure 2.16 gives an overview of the menu structure.

A general description of how to use the menu is given

in section 2.4.2. Some examples are given in section

2.4.3. The detailed descriptions of all menu items can

be found in section 2.5.

Transmitter

Status

4P Defaults

4O Unit Name

Fault Status

4N Headphone on/off

4M Mini Radiator on/off

4L Level Inputs

4K Level Aux. Right

4J Level Aux. Left

4I Aux. Input Mode

3D FW Version

Monitoring

Enquiry

Setup

3C FPGA Version

4H Carrier Overview

Carrier Settings

3B HW Version

3A Serial Number

4F Channel Names

4E Language List

4D Channel Quality

4C Number of Channels

Network Mode

Transmission Mode

Back

Figure 2.16 Menu overview

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2.4.2 Navigate through the menu

Operating the menu is always a sequence of alternating

turns and pushes:

To navigate through the Main menu:

1. Turn the button to move through the Main menu

items. The item number and title starts blinking.

(The first item, Transmitter Status, doesn’t blink.)

Turn the button to:

•

Cycle through the menu items within a menu (the

menu item number and title on the first line is

blinking).

To jump to a sub-menu:

1. Navigate in the Main menu to an item with three

dots (e.g. ‘Setup ...’).

•

Go to a settable option within a menu item (a

blinking cursor moves through the menu screen).

Cycle through the available values for a settable

option (the value is blinking).

2. Push the button to go to the sub menu. The sub-

menu item character and title starts blinking.

Note: To enter the Setup sub-menu,

push and hold the button for at least

3 seconds.

Push the button to:

•

Confirm a chosen menu item (the menu item num-

ber and title stops blinking, a blinking cursor

appears).

•

Go to a sub-menu (the sub-menu item character

starts blinking).

Confirm the selection of a settable option (the cur-

sor disappears, the option value starts blinking).

Confirm a selected value for a settable option (the

value stops blinking, the cursor appears again).

To navigate through a sub-menu:

1. Turn the button to move the cursor to the sub-

menu item character.

2. Push the button. The item character and title starts

blinking.

3. Turn to select another sub-menu item character.

4. Push to confirm the selection.

After 3 minutes of inactivity, the display automatically

switches back to the first item of the Main menu

(Transmitter Status).

To change option values

1. Navigate to the applicable menu item.

2. Turn the button to move the cursor to the option

value you want to change.

3. Push the button to activate the option. The option

value starts to blink.

4. Turn the button to select a new option value.

5. Push the button to confirm the new value.

The option value stops blinking.

6. Turn the button to move the cursor to another

settable option (when available) and repeat steps

3 to 5.

Each menu item is identified by a number (for the

Main menu) or by a number plus a character (for the

sub-menus). The item identification can be found at

the start of the first line and is used to navigate to and

from sub-menus.

Most menu items have one or more settable configura-

tion options. The value of an option can be changed

by selecting a value from a list of available values.

main menu

item number

menu item title

sub-menu

item character

4D Channel 12

Stereo PQ In 03

three dots indicate

that the item has a

option values

sub-menu

4D Ch. Quality

Per Channel ...

Figure 2.17 Menu item screen elements

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To jump back from a sub-menu to an item of the

Main menu:

To jump back from an item of the Main menu to

the Transmitter Status:

1. Turn the button to move the cursor to the Main

menu item number.

1. Turn the button to the < Back screen.

2. Push the button to go to the Transmitter Status.

2. Push the button. The item number and title starts

blinking.

2.4.3 Examples

3. Turn to select another item number.

4. Push to confirm the selection.

Each step in the examples below shows the text on the

display and the action to go to the next step. Bold text

in italics (text) indicates that the text is blinking. An

underscore ( _ ) indicates the position of the cursor.

Each example starts at the Transmitter Status screen.

When you are turning counter-clockwise through sub-

menu items, the display jumps automatically to the

Main menu after you have reached the first item (A) of

the sub-menu. Example:

3 Enquiry

4A Transmission

4 Setup

...

4C Nr. of Ch.

32 Channels

...

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Example 1: Disable carrier 2. (See also section 2.5.11).

en | 26

1. Turn the button to select

the ‘Setup’ item (4) in

the Main menu.

8. Push to confirm.

Transmitter

32 Channels

4G Carrier 2

Enabled

2. Push and hold the

button for 3 seconds to

go to the ‘Setup’ sub-

menu.

3. Turn to select the

‘C.Settings’ sub-menu

item (4G).

9. Turn to select ‘Disabled’.

10. Push to confirm.

4 Setup

4G Carrier 2

Enabled

4A Transmission

4G Carrier 2

Disabled

4. Push to go to the

‘C.Settings’ sub-menu.

11. Turn to move the cursor

to the Main menu item

number (4).

4G Carrier 2

Disabled

C.Settings...

5. Turn to select carrier 2.

6. Push to confirm.

12. Push to confirm.

4G Carrier 0

4G Carrier 2

Disabled

Enabled

13. Turn to select

the < Back screen.

4G Carrier 2

Enabled

4 Setup

< Back

...

7. Turn to move the cursor

to the second line.

14. Push to confirm

15. Ready

...

4G Carrier 2

Enabled

Transmitter

32 Channels

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Example 2: Assign a new user defined name to

channel 12. (See also section 2.5.11.)

1. Turn the button to select

the ‘Setup’ item (4) in

the Main menu.

11. Turn to move the cursor

to the first dash.

Transmitter

32 Channels

4F Channel 12

• - - -

2. Push and hold the but-

ton for 3 seconds to go

to the ‘Setup’ sub-menu.

12. Push to confirm.

4 Setup

...

4F Channel 12

• - - -

3. Turn to select the ‘Ch.

Names’ sub-menu item

(4F).

13. Turn to select the first

character (C).

4A Transmission

4F Channel 12

• - - -

4. Push to go to the ‘Ch.

Names’ sub-menu.

14. Push to confirm this

character.

4F Ch.Names ...

4F Channel 12

• C--

Floor

5. Turn to select the

required channel num-

ber (12).

15. Repeat steps 11 to 14 for

the other characters.

4F Channel 00

Spanish

4F Channel 12

• C--

6. Push to confirm.

16. Turn to move the cursor

to the Main menu item

number (4).

4F Channel 12

Spanish

4F Channel 12

• CD Music

7. Turn to move the cursor

to the start of the second

line.

17. Push to confirm.

4F Channel 12

Spanish

4F Channel 12

• CD Music

8. Push to confirm.

18. Turn to select

the < Back screen.

4G Carrier 12

Spanish

4 Setup

< Back

...

9. Turn clockwise until the

channel name changes

to: • - - -

19. Push to confirm

20. Ready

...

4F Channel 12

Spanish

10. Push to confirm.

4F Channel 12

• - - -

Transmitter

32 Channels

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Example 3: Set channel 11 to transmit a Stereo signal

in Premium Quality, using audio inputs

14 (L) and 15 (R) as source.

(See also section 2.5.10.)

1. Turn the button to select

the ‘Setup’ item (4) in

the Main menu.

9. Turn to select the

Transmitter

32 Channels

4D Channel 00

Mono SQ

In 00

required channel num-

ber (11).

2. Push and hold the but-

ton for 3 seconds to go

to the ‘Setup’ sub-menu.

10. Push to confirm.

4D Channel 11

4 Setup

...

Mono SQ

In 00

3. Turn to select the ‘Chan-

nel Quality’ sub-menu

item (4D).

11. Turn to move the cursor

to the quality option.

4A Transmission

4D Channel 11

Mono SQ

In 10

4. Push to confirm.

12. Push to confirm.

4D Ch. Quality

4D Channel 11

All Mono SQ

Mono SQ

In 10

5. Turn to move the cursor

to the option on the sec-

ond line.

13. Turn to select the

required quality value

(Stereo PQ).

4D Ch. Quality

All Mono SQ

4D Channel 11

Mono SQ

In 10

6. Push to confirm.

14. Push to confirm. *

4D Ch. Quality

All Mono SQ

4D Channel 11

Stereo PQ In 10

7. Turn to select the option

value ‘Per Channel ...’.

15. Turn to move the cursor

to the input number.

4D Ch. Quality

4D Channel 11

All Mono SQ

Stereo PQ In 12

8. Push to go to the ‘Chan-

nel’ sub-menu (4C).

16. Push to confirm.

4D Ch. Quality

4D Channel 11

Per Channel ...

Stereo PQ In 12

Note that after selecting ‘Stereo’ as input mode

(step 14) the input number changes automatically

to the next even number (12), which is the input

number of the left signal.

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17. Turn to select the

4D Channel 11

Stereo PQ In 12

required input number

(14).

18. Push to confirm.

4D Channel 11

Stereo PQ In 14

19. Turn to move the cursor

to the Main menu item

number (4).

4D Channel 11

Stereo PQ In 14

20. Push to confirm.

4D Channel 11

Stereo PQ In 14

21. Turn to select

the < Back screen.

4 Setup

< Back

...

22. Push to confirm

23. Ready

Transmitter

32 Channels

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2.5 Configuration and

operation

The next sections give descriptions of the possible con-

figuration options. Each description is followed by the

relevant menu items with detailed information per

menu option. The default values (see section ‘Reset all

options to factory defaults’) are indicated by an asterisk

(*) when applicable.

2.5.1 Start-up

When the transmitter is switched on, the display shows

the Transmitter Status screen, which is the first item of

the Main menu. The display also goes to this screen

after 3 minutes of inactivity.

In case the system detects a fault, the display shows a

flashing fault message (see section 2.5.4).

2.5.2 Main menu

The main menu contains the screens to view the trans-

mitter status and the radiator fault status. It also con-

tains the entry points to the Monitoring, Enquiry and

Setup sub-menus.

Menu Item

Description

Transmitter Status

Shows the transmitter status

(see section 2.5.3)

1 Fault Status

2 Monitoring . . .

3 Enquiry . . .

4 Setup . . .

Shows the radiator fault status

(see section 2.5.4)

Go to the ‘Monitoring’ sub-menu

(see section 2.5.5)

Go to the ‘Enquiry’ sub-menu

(see section 2.5.6)

Go to the ‘Setup’ sub-menu

(see sections 2.5.7 and higher)

2.5.3 View transmitter status

The first screen of the Main menu gives information

about the present status of the transmitter. The screens

shows the name of the transmitter (1st line) and the

present transmission mode (2nd line). See examples

below. See section 2.5.7 to change the transmission

mode.

Transmitter

Aux to All

Transmitter

Standby

10 Channels DCN

Transmitter is transmitting

10 channels from DCN.

Transmitter is transmitting the

Aux inputs on all channels.

Transmitter is in Standby mode

(not transmitting).

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Menu Items

Options (read only)

Name

Description

Transmitter Status

The first line shows the user defined name of the transmitter (see

section 2.5.16).

Mode:

The second line shows the actual transmission mode:

Audio signals are distributed on nn channels.

The signal on the Aux. inputs is distributed on all channels.

The test signals are distributed on nn channels.

The transmitter operates in slave-mode: the radiator signal on the

slave input is looped-through to all radiator outputs.

The transmitter is in stand by mode.

- nn Channels

- Aux to All

- nn Ch. Test

- Slave

- Standby

- Emergency Call

An emergency signal from the Aux. inputs is distributed to all

channels.

DCN

The text ‘DCN’ is shown at the right side of the second line when

a DCN or a DCN Next Generation system is connected to the

transmitter.

2.5.4 View fault status

The fault status of the radiators can be seen in the

second screen of the Main menu:

Menu Items

Value (read only)

Description

1 Fault Status

Fault:

- No Faults

- Radiator Fault

- No Radiators

- No Network

The connected radiators function without problems.

One of the connected radiators is not functioning properly.

No radiators are connected to the transmitter.

When the Network Mode (see section 2.5.8) is Enabled, this fault

is shown when there is a fault in the optical network.

When the Network Mode (see section 2.5.8) is Disabled, this fault

is shown when there is a fault in the optical network. This message

usually occurs when the Network Mode (see section 2.5.8) is

disabled, and a DCN Next Generation CCU is connected to the

transmitter.

- Network Error

When the system detects a failure for the first time, a

flashing fault message pops-up on any menu screen:

Radiator Fault

No Radiators

No Network

Network Error

Push the menu button to remove the fault message

from the screen and to go back to the menu screen

that was visible before the fault message popped-up.

The flashing message will also disappear when the fault

has been resolved.

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2.5.5 Set monitoring options

The Monitoring sub-menu (2) is used to set which sig-

nal is sent to the monitoring headphone output. It can

be one of the inputs, one of the channels or no signal.

When the sensitivity of one of the inputs is being

changed in the Setup menu (4J, 4K or 4L), or when

assigning inputs to channels (menu 4D, Per Channel),

the monitoring output automatically switches temporar-

ily to that source, even when the option ‘None’ has

been chosen.

When the headphone output is disabled (see section

2.5.18), the output level can not be changed and the

level indicator is not visible.

Menu Item

Option

Value 1

Value 2

Description

2A Source/Volume

Source;

- In. nn

Input nr:

00 ... 31

Volume:

The signal from audio input nn is available

on the monitoring headphone output.

The signal on channel nn is available on the

monitoring headphone output.

-31 ... 0 dB

Volume:

- Ch. nn

- Aux.L

- Aux.R

- None

Channel nr:

00 ...31

-31 ... 0 dB

Volume:

The signal on the Aux. Left input is available on

the monitoring headphone output.

-31 ... 0 dB

Volume:

The signal on the Aux. Right input is available

on the monitoring headphone output.

-31 ... 0 dB

Volume:

The monitoring headphone output is switched off

during normal operation, but is active when the

sensitivity of one of the inputs is being changed.

-31 ... 0 dB

The ‘Source/volume’ screen also displays level meters (two

for a stereo source, one for a mono source) for a visual indi-

cation of the actual signal strength: ■ = low level,

level, ▲ = overflow.

■

= high

2.5.6 View version information

In the Enquiry sub-menu (3), version information of

the transmitter can be found. This information should

be mentioned in service requests or failure reports.

Menu Item

Value (read only)

Description

3A Serial Number

3B HW Version

e.g. 19.0.00001

e.g. 01.00

Shows the serial number of the transmitter board.

Shows the version number of the transmitter board.

Shows the version number of the FPGA software of the

transmitter board.

3C FPGA Version

e.g. 2.00.00

3D FW Version

e.g. 1.00.0001

Shows the version number of the transmitter firmware.

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2.5.7 Set transmission mode

The Transmission Mode menu item (4A) is used to

select which signals will be distributed over the chan-

nels. It is also possible to switch all channels off

(Standby).

When using an Integrus system with a DCN Next

Generation system (see section 2.5.8), the transmitter is

automatically switched to 'Standby' when the connect-

ed DCN Next Generation system is switched off.

When the DCN Next Generation system is switched

on, the transmitter is automatically switched to 'On'.

When using an Integrus DCN interface module of ver-

sion 01.05 or higher, the transmitter is automatically

switched to ‘Standby’ when the connected DCN sys-

tem is switched off. When the DCN system is switched

on, the transmitter is automatically switched to ‘On’.

Menu Item

Option

Description

4A Transmission

Mode:

- Standby

* - On

All channels are switched off, no signals are distributed.

Normal transmission. Input signals are distributed on the channels

as set in the Channel Quality sub-menu (4D).

The signals on the Auxiliary inputs are distributed on one carrier to

all channels.

- Aux to All

- Test

A different test tone is distributed on each channel. The frequency

increases with increasing channel number. For stereo channels the

tone for left and right will also be different.

- Slave

The radiator signal on the slave input is looped-through to all

radiators.

2.5.8 Set network mode

The network mode menu item (4B) is used to enable

and disable the optical network connections. When the

transmitter is connected to a DCN Next Generation

conference system, the optical network connections

must be enabled.

Menu Items

Option

Description

4B Network Mode

Mode:

- Disabled

Optical network connections disabled. Use this mode when the

transmitter is not used in combination with DCN Next Generation.

Optical network connections enabled. Use this mode when the

transmitter is used in combination with DCN Next Generation.

- Enabled

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2.5.9 Set number of channels

Via sub-menu item 4C the number of channels that

will be used can be set. Note that the maximum num-

ber of channels depends on the transmitter type (4, 8,

16 or 32 channels) and the chosen quality modes.

When a DCN Next Generation or a DCN system is

connected to the transmitter, the number of channels

can be automatically set by the connected system.

Menu Items

4C Nr. of Ch.

Option

Description

Nr. of channels

* - Automatic: nn

The number of used channels is set automatically to the maximum

possible number of channels (depending on transmitter type and

the selected quality modes). When a DCN Next Generation

or a DCN system is connected to the transmitter, the number of

channels is determined by the settings of the connected system.

Set the number of used channels (the maximum number depends

on the transmitter type and the selected quality modes).

- Manual: nn

An asterisk (*) is shown when the selected number is not possible

because it is higher than the maximum number of channels.

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2.5.10 Set channel quality and assign inputs

to channels

The audio quality of the channels (mono/stereo, stan-

dard/premium) can be set in sub-menu 4D. The quali-

ty can be set the same for all channels or for each

channel separately. Note that choosing stereo and/or

premium quality uses more bandwidth and decreases

the number of available channels (see section 1.2.4).

In stereo mode, the left signal is always an even num-

bered input. The next higher input number is used for

the right signal.

When the quality is set the same for all channels with

the ‘All Mono’ or ‘All Stereo’ options, the inputs are

assigned automatically to the channels as indicated in

the table below:

All Mono

All Stereo

Input L

Channel

Input

Channel

Input R

...

With menu option 4D (Per Channel Settings), the

assignment can also be done for each channel

separately.

Menu Items

Option

Description

4D Ch. Quality

Quality:

* All Mono SQ

All Mono PQ

All Stereo SQ

All Stereo PQ

Per Channel . . .

Set all channels to mono, standard quality.

Set all channels to mono, premium quality.

Set all channels to stereo, standard quality.

Set all channels to stereo, premium quality.

Select this option to go to the ‘Per Channel Settings’ menu.

If, in the network mode, stereo quality is selected, the

floor language is assigned to the left channel and the

translation is assigned to the right channel. This can be

used for language learning applications.

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Per Channel Settings:

Menu Item

Options

Description

4D Channel nn

Channel nr.:

00 ... 31

Select which channel to configure.

Quality:

- Disabled

* - Mono SQ

- Mono PQ

- Stereo SQ

- Stereo PQ

Source:

Disable selected channel.

Set selected channel to mono, standard quality.

Set selected channel to mono, premium quality.

Set selected channel to stereo, standard quality.

Set selected channel to stereo, premium quality.

In 00 .. 31

Select the audio input that should be distributed on the selected

channel. For stereo signals, the input number of the left signal

(even number) should be selected.

On 00 .. 31

Select the optical network channel that should be distributed on

the selected channel.

Note: An asterisk (*) is shown behind the

channel number when the channel in the

configured quality does not fit on the avail-

able carriers (see section 1.2.4).

With an optical network connected, an

asterisk (*) is shown behind the input num-

ber and the channel number when the

selected input can not be routed to the

selected channel, due to the routing limita-

tions of the hardware. The user has to

browse through the inputs in order to

determine which input can be routed to the

selected channel.

Without an optical network connected, an

asterisk (*) is shown behind the input num-

ber and the channel number when an opti-

cal network channel (On) is selected, or

when an input is selected that can not be

routed to the selected channel due to the

routing limitations of the hardware (typical-

ly inputs 28, 29, 30 & 31 can not be routed

to other carriers than carrier 7).

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2.5.11 Set channel names

Each channel can be assigned a name via the Channel

Names menu (4F). This can be ‘Floor’ or one of 30

pre-defined ISO language names. Also up to 32

userdefined names can be added.

See also example 2 in section 2.4.3. The language in

which the pre-defined names are presented can be

chosen via the Language List menu option (4E).

Menu Item

Options

Description

4F Ch. Names ...

Push the button to go to the sub-menu.

4F Channel nn

Channel nr.:

00 ... 31

Select which channel to name.

Language name:

* - ‘Floor’

Set the name for the selected channel.

Use this name for the channel that carries the ‘Floor’ language.

Choose from pre-programmed ISO language names.

Up to 32 user defined names (max. 12 characters) can be

added and chosen.

- ISO language names

- User defined names

Menu Item

Options

Description

4E Language List

Language:

English

Present language list in English.

French

Present language list in French.

Original

Present each language name in it’s original language

(e.g. English, Français, Deutsch, etc.)

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2.5.12 Disable or enable carriers

Normally the channels are automatically assigned to

the available carriers. However, when the reception

quality of a specific carrier is not good, that carrier can

be disabled manually. The channels are then automati-

cally re-assigned to the next available carriers.

Each of the 8 carriers (0 to 7) can be disabled or

enabled in the Carrier Settings menu (4G).

Menu Items

Options

Description

4G C.Settings ...

4G Carrier n

Push the button to go to the sub-menu.

Carrier nr.:

0 ... 7

Select which carrier to configure.

Status:

- Disabled

* - Enabled

The selected carrier is disabled (off).

The selected carrier is enabled (on).

2.5.13 View carrier assignments

With menu option 4H the carrier assignment can be

seen, i.e. which channels are transmitted on each carri-

er. Note that the number of channels that can be dis-

tributed on one carrier depends on the chosen quality

mode. See examples below.

4H Carrier 1

4H Carrier 4

4H Carrier 5

Ch. 04 05 06 07

Ch. 16 17 -- --

Ch. 18 18 19 19

Channels 4, 5, 6, and 7 (all Mono

MQ) are assigned to carrier 1.

Channels 16 and 17 (both Mono MQ)

are assigned to carrier 4. Room for

more channels on same carrier.

Channels 18 and 19 (both Mono

PQ) are assigned to carrier 5.

Menu Item

Options

Description

4H C.Overview ...

4H Carrier n

Push the button to go to the sub-menu.

Carrier nr.:

0 ... 7

Select which carrier to view.

Channel numbers:

-00 ... 31 or --

Shows the channel numbers that are assigned to the selected

carrier. The symbol ‘- -’ is used when less than 4 channels are

assigned.

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2.5.14 Configure auxiliary inputs

The way the signals on the auxiliary inputs (Aux-.L

and Aux.-R) are handled can be set in the Aux. Input

Mode menu (4I).

When the option ‘Stereo’ is chosen, the signals on both

Aux. inputs are distributed as a stereo signal to all

channels. This setting can for instance be used to trans-

mit a music signal during breaks in a conference. Note

that the Transmission mode must be set to ‘Aux to All’

(menu item 4A) to actually transmit this stereo signal.

The ‘Stereo to Mono’ and ‘Mono+ Emergency’ options

can be selected when the transmitter is used in combi-

nation with an interpretation system. The Aux. input(s)

will be distributed to the Symmetrical Audio Input and

Interpreters Module. In this configuration the ‘floor’

signal should be connected to the Aux. inputs.

Menu Items

4I Aux. Input

Option

Description

Type:

- Stereo

The Aux. inputs will be distributed in stereo to all channels when

the transmission mode (menu item 1) is set to ‘Aux to All’.

The Aux-L and Aux-R inputs are combined into a mono signal and

distributed to the Symmetrical Audio Input and Interpreters

Module (when present).

- Stereo to Mono

- Mono + Emergency

The Aux-L input is distributed to the Symmetrical Audio Input and

Interpreters Module (when present). The Aux-R input is distributed

as emergency signal to all channels when the emergency switch

is closed.

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2.5.15 Set sensitivity of the inputs

The sensitivity of the audio and Aux. inputs can be set

in the Input Sensitivity menus (4J, 4K, 4L). The sensi-

tivity can be set the same for all audio inputs (menu

item 4L) or for each audio input separately.

Menu Items

Options

Value

Description

4J Level.Aux.L

Level:

-6 ... +6 dB

Set the required sensitivity for the left auxiliary input.

Set the required sensitivity for the right auxiliary input.

4K Level.Aux.R

4J Level.Inputs

Level:

-6 ... +6 dB

Mode:

Level:

- All

-6 ... +6 dB

Set the sensitivity of all audio inputs to a user defined level.

Select this option to go to the ‘Per Input Sensitivity

Settings’ menu.

- Per Input ...

Per Input Sensitivity settings:

Menu Items

Options

Value

Description

4L Sens.Input nn

Input nr.:

Level:

00 ... 31

-6... +6 dB

Select which input to set and select the required sensitivity.

The sensitivity screens also displays a level meter for a visu-

al indication of the actual signal strength: ■ = low level,

= high level, ▲ = overflow.

■

2.5.16 Enable / disable IR-monitoring

The mini IR-radiator at the front of the transmitter can

be used for monitoring the IR-signal. When required

(e.g. for security reasons) this option can be switched

off (menu 4M).

Menu Items

Options

Description

4M Mini Radiator

Enabled or Disabled

Enable or disable the mini IR-radiator at the front of the transmitter.

2.5.17 Enable / disable headphone output

The headphone output at the front of the transmitter

can be used for monitoring the input-and channel sig-

nals. When required (e.g. for security reasons) this

option can be switched off in menu item 4N.

Menu Items

Options

Description

4N Headphone

Enabled or Disabled

Enable or disable the headphone output at the front of the

transmitter.

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2.5.18 Choose transmitter name

The transmitter can be assigned a user-defined name.

This name is used in the Transmitter Status screen.

The name can be edited in the Unit Name menu (4O).

Menu Items

Options

Description

4O Unit Name

Name:

- Free text

Assign a user defined name to the transmitter

(max. 16 characters). The default name is ‘Transmitter’.

2.5.19 Reset all options to factory default

values

Use menu item 4P to reset all options to the factory

defaults. The user defined transmitters name, the user

defined language names and the transmission mode

are not reset. (The default values are indicated by an

asterisk (*) in the menu descriptions.)

Menu Items

Options

Description

4P Defaults ...

Push the button to go to the sub-menu.

Reset to defaults?

* - No

- Yes

Cancel Reset.

Reset all options to the factory default value.

The user defined transmitters name, the user defined language

names and the transmission mode are not reset.

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3 Integrus Radiators

3.1 Medium and High Power

Radiators

3.1.1 Description

These units accept the carrier signals generated by the

transmitter and emit infra-red radiation carrying up to

32 audio distribution channels. They are connected to

one or more of the four HF BNC outputs of the IR

transmitter. A maximum of 30 radiators can be con-

nected to each of these outputs by means of loop-

through connections.

The LBB 4511/00 has an infra-red output of 16 Wpp,

while the LBB 4512/00 has an infra-red output of

32 Wpp. Both have an automatic mains power voltage

selection and are switched on automatically when the

transmitter is switched on.

Figure 3.2 LBB 4512/00 High Power Radiator (Front view)

Figure 3.1 and 3.2

1. Mains input - Male Euro mains connector. The

radiators have automatic mains voltage selection.

The attenuation of the signal by the cable is equalised

automatically by the radiator. When the radiator is sup- 2. IR signal input/loop-through - Two HF BNC

plied with power and the transmitter is switched on,

the radiator initialises the equalisation. The red LEDs

flash for a brief period of time to indicate that the ini-

tialisation is in progress.

connectors for connecting the radiator to the trans-

mitter and for loop-through connection to other

radiators. Automatic cable termination is achieved

by a built-in switch in the BNC connectors.

3. Output power selection switch - The radiators

can be switched between full- and half-power

operation.

4. Delay compensation switches - Two 10-position

switches to compensate for differences in cable

lengths to the radiators.

When not receiving carrier waves, the radiators switch

to standby mode. There is also a temperature protec-

tion mode which automatically switches the radiators

from full to half power or from half power to stand-by

if the temperature of the IREDs becomes too high.

5. Amber indicator LEDs - Give an indication of the

radiator status.

6. Red indicator LEDs - Give an indication of the

radiator status.

Note: The indicator LEDs are positioned

behind the semi-transparent cover and

are only visible when ON.

100-240

Loop Through inputs

Do not

terminate

Output power

High

Low

Delay compensation

X10

Figure 3.1

LBB 4511/00 and LBB4512/00 Radiators

(Back view)

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3.1.2 Radiator status indication

Attaching the suspension bracket

First assemble the supplied suspension bracket and

A radiator consists of two IRED panels. Each IRED

panel has an amber and a red indicator LED (see

figure 3.2) which show the status of the radiator panel

connect it to the radiator (see figure 3.3 and figure 3.4).

This bracket is attached to the radiator by two bolts

with washers. There are corresponding holes on the

back of the radiators. There is also a spring-loaded

plunger (indicated by a black arrow in figure 3.4),

located above the bolt hole on the right-hand arm of

the bracket, which is used for adjusting the angle of the

radiator (shown in inset in figure 3.4). There are corre-

sponding holes on the back of the radiator for accept-

ing this plunger. The mounting angle can be adjusted

in steps of 15°.

Red LED

Amber LED

Status

off

Stand-by mode

off

Transmitting

flashing

At switch-on:

Initialising signal equalisation

During operation:

Temperature protection mode.

See chapter 6,

Trouble-shooting

on IRED panel failure.

See chapter 6,

Trouble-shooting

3.1.3 Mounting the radiators

Radiators in permanent installations can be either fixed

to a wall, hung under a ceiling or balcony or secured

to any sturdy material, using the suspension bracket

supplied with the radiator. The mounting angle can be

adjusted for optimal coverage.

For wall mounting a separate bracket (LBB 3414/00) is

also required. In non-permanent installations, a floor

stand can be used.

Figure 3.3 Attaching the plate to the suspension bracket

Warning: When you install the radiator in

a ceiling, you must leave at least 1 m³of

free space around the back of the radia-

tor. To prevent the radiator from becom-

ing too hot, make sure that there is a

good airflow in this free space.

Note: When in operation, the radiators

may feel warm to the touch. This is quite

normal, and does not indicate a radiator

fault or malfunction.

Warning: Always ensure that natural air-

flow is not obstructed by ceilings, walls

etc. when determining the position of the

radiator. Leave plenty of space around the

radiator to prevent it becoming too hot.

Figure 3.4 Attaching the suspension bracket to the

radiator

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Mounting on a floor stand

Wall mounting

For wall mounting, an extra wall bracket (LBB

The top of the floor stand is screwed into the suspen-

sion bracket (figure 3.5). The bracket is supplied with

both metric and Whitworth threaded plates, and is

therefore compatible with most standard floor stands.

For floor stands, the mounting angle can be set at 0°,

15° or 30°.

3414/00) is required (must be ordered separately).

This bracket is attached to the wall by means of four

bolts (see figure 3.8). Four holes of 10 mm in diameter

and 60 mm in depth must be drilled using the drilling

pattern (see figure 3.7).

Note: The four bolts used to attach the

bracket must each be able to withstand

a pull-out force of 200 kg (440 lb).

The bolts and plugs delivered with the

LBB 3414/00 wall bracket are only intend-

ed for mounting the unit on a solid brick

or concrete wall.

Figure 3.5 Attaching the stud of a floor stand to the

suspension bracket of the radiator

Figure 3.7 LBB 3414/00 wall mounting bracket showing

dimensions and drilling pattern

Figure 3.6 Attaching the radiator inclusive suspension

bracket and stud to the floor stand

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The radiator (plus suspension bracket) is attached to

the wall bracket by sliding the mounting bolt over the

slot on the wall bracket and then tightening it (see

figure 3.9). A split pin is then inserted into a small hole

in the bolt to stop it from working loose (see inset in

figure 3.9). The vertical angle of the radiator can be

adjusted between 0 and 90° in steps of 15°. The hori-

zontal orientation of the radiator can be adjusted by

loosening the bolt then turning the radiator to the

required position.

Ceiling mounting

The radiators can be attached to the ceiling using the

supplied suspension bracket. This ensures enough

space for a proper air flow around the radiator.

Mounting a radiator in the ceiling will in most cases

require a forced air flow by means of a ventilator to

prevent overheating.

Mounting on horizontal surfaces

When the radiator has to be positioned a horizontal

surface (e.g. on top of an interpreter booth), the dis-

tance between the radiator and the surface must be at

least 4 cm (1.5 inch) to enable enough air flow around

the radiator. This can be achieved by using the suspen-

sion bracket as a support. If this is not possible, switch

the radiator to half power. If the radiator is used at full

power on top of an interpreter booth, the ambient tem-

perature must not exceed 35° C.

3.1.4 Connecting radiators to the transmitter

The transmitter has six BNC HF Output connectors

labelled 1, 2, 3, 4, 5 and 6 on the rear panel. All six

outputs are functionally identical. They can each drive

up to 30 radiators (LBB 4511/00 and/or LBB 4512/00)

in a loop-through configuration. The radiators are con-

nected with RG59 cables. The maximum cable length

per output is 900 m (2970 ft) to the last radiator.

Automatic cable termination is achieved by a built-in

switch in the BNC connectors on the radiator.

Figure 3.8 Attaching the wall mounting bracket to a wall

Notes:

•

For the automatic cable termination to

work, never leave an open-ended

cable connected to the last radiator in

a loop-through chain.

•

When connecting infra-red radiators,

do not split the cable, else the system

will not function correctly.

Figure 3.9 Attaching the radiator to the wall mounting

bracket

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3.2 Low Power Wide Beam Radiator

3.2.1 Description

This radiator is designed for small or medium-sized

conference venues. The radiator has an infra-red out-

put of 3 Wpp and they have a built-in power supply

and are switched on automatically when the transmitter

is switched on. A mains cable is provided. When not

receiving carrier waves, the radiators switch to standby

mode. They can be mounted on walls and ceilings or

on a floor stand. Figures 3.11 and 3.12 show front and

rear views of the radiators.

Figure 3.11 LBB 3410/05 Radiator (Front view)

Figure 3.10 Loop-through connection of radiators

3.1.5 Using the output power selection

switch

The radiators can be switched to half power. This can

be used when full power is not required, e.g. when a

mobile system is used in a small conference venue.

Also switch a radiator to half power when an adequate

air flow can not be guaranteed, e.g. when the radiator

is mounted on top of an interpreters booth. Reducing

the power when possible saves energy and increases

the lifetime.

Figure 3.12 LBB 3410/05 Radiator (Rear view)

1. Male mains connector - for connecting the radia-

tor to the mains supply.

2. HF BNC input and output connectors - for con-

necting the radiator to the transmitter or for loop-

through connection to other radiators.

3. Power reduction switch - reduces the output

power of the radiator to 1.5 Wpp.

4. Radiator mounting bracket.

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The following are found on the radiator printed circuit

board: (Figure 3.13):

•

Don’t use this radiator in combination with LBB

4511/00 and LBB 4512/00 radiators in one system,

as the internal signal delay of these radiators are

different.

No automatic cable termination: the termination

plug has to be connected to the last radiator in a

trunk.

•

No communication of the radiator status to the

transmitter.

Using this radiator at 105 to 125 V requires internal

adjustments.

Figure 3.13 LBB 3410/05 Radiator (PCB)

3.2.2 Radiator Status Indication

When the radiator is transmitting, a green LED mount-

ed internally on a printed circuit board illuminates. If

there is a failure in the radiator, a red LED illuminates

on the printed circuit board.

5. Green LED - indicates that the radiator is switched

on and is receiving carrier waves from the transmitter.

6. Red LED - indicates that the radiator output is 70%

or less of the normal output level.

3.2.3 Mounting the Radiator

Mains voltage selection of 115 V or 230 V is internally

selectable. On delivery the radiator is set for 230 Va.c.

operation. To alter the mains voltage selection for the

LBB 3410/05 radiators, it is necessary to solder two

leads to contacts on the printed circuit board (PCB)

inside the radiator. To locate the PCB, remove the four

securing screws at the rear of the radiator and remove

the unit from its housing. Remove the PCB from its

mounting by removing the PCB’s six securing screws

and the small connector X1 (figure 3.13). To select

115 V operation, solder two small leads, one connect-

ing X4 to X6 and one connecting X5 to X7. Then

remove the small SMD resistor R3. When this is com-

pleted replace fuse F1 (160 mA) with a fuse rated at

350 mA.

Radiators in permanent installations can be fixed to a

wall, hung under a ceiling or balcony or secured to

any sturdy material using the unit’s built-in bracket and

mounting adaptor supplied with the radiator (figure

3.14). In non-permanent installations, a floor stand can

be used. The mounting adaptor enables the radiator to

be positioned for optimum performance.

Limitations:

•

Not more than the first 4 carriers can be transmit-

ted.

Not more than 100 m cable length from transmitter

to last radiator.

Directly connection of the radiators to the transmit-

ter with equal cable length. In loop-through con-

nection, the total cable length from the first to the

last radiator may not exceed 5 meters. Reason:

there are no facilities on this radiator for compen-

sating the cable signal delay.

Figure 3.14 LBB 3410/05 Radiator Mounting

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4 Integrus Receivers

4. Volume control - A slider to adjust the volume.

5. Channel selector - An up/down switch to select

an audio channel. The channel number is shown

on the LCD display.

4.1 Description

LBB 4540 receivers are available for 4, 8 or 32 chan-

nels. They can operate with a rechargeable NiMH bat-

tery pack or with disposable batteries and have con-

trols for channel selection, volume adjustment and an

on/off push button. All receivers have a 3.5 mm (0.14

inch) stereo jack output socket for mono or stereo

headphones.

6. On/Off button - When a headphone is connected,

the receiver switches to Stand-by state. Pressing the

On/Off button switches the receiver from Stand-by

to On. To switch back to Stand-by, press and hold

the button for approx. 2 seconds. When the head-

phone is removed, the receiver switches automati-

cally to the Off-state.

An LCD display shows the channel number and indi-

cators for signal reception and low battery power.

7. Battery pack connector - This connection is used

to connect the battery pack to the receiver. Charg-

ing is automatically disabled when this connector is

not used.

8. Charging contacts - Used in combination with the

charging equipment to recharge the battery pack (if

used).

9. Battery pack or disposable batteries - Either a

rechargeable NiMH battery pack (LBB 4550/00) or

two disposable AA-size 1.5 V batteries.

Note: When the receiver is not used,

disconnect the headphones. This ensures

that the receiver is totally switched-of and

no energy is consumed from the batteries

or the battery pack.

Figure 4.1

Receiver, front view and back view with open

battery compartment

Charging circuitry is included in the receiver.

Figure 4.1:

1. Charging indicator LED - Used in combination

with the charging equipment.

2. Headphone connector - A 3.5 mm (0.14 inch)

stereo jack output socket for the headphone, with

integrated Stand-by/Off-switch.

3. LCD Display - A two digit display showing the

selected channel. An antenna symbol is visible

when the receiver picks up an infra red signal of

adequate quality. A battery symbol is visible when

the battery pack or the batteries are almost empty.

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4.2 Operation

Note: Disposable batteries and battery

packs at the end of their technical lives

should be discarded with due care for

the environment. When possible, take

batteries to a local recycling station.

The receiver cannot operate when no headphone is

connected. After connecting the headphone the receiv-

er switches to stand-by mode. Push shortly on the

on/off button to switch the receiver on.

The channel number is shown on the LCD display.

The channel can be changed with the channel selector.

Push it to the up- or down-position to increase or

decrease the channel number. The highest channel

number is automatically matched to the number of

channels that has been set on the transmitter (see sec-

tion 2.5.9).

4.3 Reception test mode

The receivers can be switched to a test-mode to get an

indication of the reception quality for each carrier sep-

arately. To activate the test-mode: Push the channel

selector to the Up-position, press the on/off button and

hold both for ca. 2 seconds. When in test-mode,

switch between carriers by using the channel selector.

The receiver’s display will shortly show the carrier

number (0-7) and then a quality indication (00-90).

A battery symbol is visible on the display when the

batteries or the battery pack is almost empty.

An antenna symbol is visible when the receiver picks

up a modulated infra red signal of adequate quality.

During short interruptions in the reception, the receiv-

er mutes the headphones output. When no adequate

IR signal is detected for more than 1 minute (e.g.

when a delegate leaves the conference room), the

receiver automatically switches to stand-by mode.

The volume can be changed by moving the volume

control up or down.

Note: When the receiver does not receive

the selected carrier, it keeps displaying

the carrier number and does not display

its quality.

The receiver can be manually switched to stand-by

mode by pressing the on/off button for more than 2

seconds.

When the headphone is disconnected, the receiver is

automatically switched off. (A switch in the headphone

connector disconnects the batteries.)

The reception quality can be assessed as follows:

Indication

Quality

00-39

40-49

50-90

Good reception. Very good audio quality.

Weak reception. Ticks in the audio.

The infra-red receivers can operate with disposable

batteries (2x AA-size alkaline cells) or with a recharge-

able battery pack (LBB 4550/00).

No or bad reception. Poor audio quality.

Insert the batteries or the battery pack in the receiver

with the correct polarity as indicated in the battery

compartment. The battery pack has a separate connec-

tion cable which must be connected to the receiver.

When this connection is not present, the charging cir-

cuitry in the receiver will not work. This also prevents

the unwanted charging of disposable batteries. The bat-

tery pack has a temperature sensor which prevents

overheating during charging.

The test mode is deactivated when the receiver is

switched off.

4.4 Receiver headphones

The headphones connect with the receivers via a 3.5

mm (0.14 inch) stereo jack connector. Suitable head-

phone types are:

•

LBB 3441/10 Under the chin stereo headphones

LBB3442/00 Single earphone (mono)

LBB3443/00 Stereo headphones (recommended)

Or any other compatible type (see chapter 7,

Technical Data).

For more information about charging the battery pack

see chapter 5.

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Two versions are available, which are functionally

identical:

5 Integrus Charging Units

5.1 Description

•

LBB 4560/00 Charging suitcase for portable

systems.

The charging units can recharge up to 56 receivers at

once. The charging unit contains the power supply

with automatic mains voltage selection. The charging

electronics and a charging indicator LED are included

in each receiver. The charging circuitry checks if a bat-

tery pack is present and controls the charging process.

•

LBB 4560/50 Charging cabinet for permanent

systems. Suitable for either table-top or wall-mount-

ed use.

Figure 5.1:

1. Mains input - Male Euro mains socket. The charg-

ing unit has automatic mains voltage selection.

A mains cable is provided.

Note: These charging units are only

intended to charge LBB 4540 receivers

with a LBB 4550/00 battery pack. You

cannot charge other receiver types with

the LBB 4560 charging units, nor can you

use other charging units to charge LBB

4540 receivers.

2. Mains on/off switch

3. Receiver positions - One charging unit can charge

up to 56 receivers simultaneously.

Figure 5.1

LBB 4560 Charging unit

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5.2 Wall mounting the charging

cabinet

5.3 Charging procedure

Ensure that the charging unit is connected to the mains

and that it is switched on. Place the receivers firmly in

the charging compartments. The charging indicator

LEDs on all receivers should illuminate. These LEDs

indicate the charging status of each receiver:

LBB 4560/50 is suitable for either table-top or wall-

mounted use.

It can be wall-mounted using 5 mm (0.19 inch) screws,

with a head diameter of 9 mm (0.35 inch). The screws

and plugs delivered with the LBB 4560/50 are

designed to mount the unit on a solid brick or concrete

wall. Two holes, 8 mm in diameter and 55 mm in

depth, must be drilled 500 mm apart (see figure 5.2).

LED colour

Charging status

Green

Charging completed.

Red

Charging in progress.

Error status. See chapter 6,

Trouble-shooting.

Red blinking

Off

Charger switched off or receiver not

properly inserted.

Warning: To comply with UL and CSA

regulations, the charging cabinets must

be mounted in such a way that they can

be easily removed by hand in case of

emergency.

Notes:

•

It is preferred to switch on the charg-

ing unit before inserting the receivers.

Receivers can be inserted or removed

without damage while the charging

unit is switched on.

•

Charge the battery pack to full capaci-

ty before using them for the first time.

The charger always applies fast

charge during the first 10 minutes

after inserting a receiver. Inserting the

receiver multiple times with a fully

charged battery pack should therefore

be avoided, as this will damage the

battery pack.

Figure 5.2 Charging cabinet mounting dimensions

•

Continuously charging the receiver

will not damage the receiver or bat-

tery pack. Receivers can therefore

safely be left in their charging posi-

tions when they are not used.

When the rechargeable battery pack

is used, it is advisable to check regu-

larly after three years that the batter-

ies are not leaking. If there is any sign

of leakage or corrosion, replace the

battery pack. Ensure that only the bat-

tery pack LBB 4550/00 is used. The

battery pack has to be replaced at

least every five years.

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Troubleshooting

In this chapter a simple fault-finding guide is given.

This is intended to be used to remedy the conse-

quences of incorrect installation. If more serious faults

or problems arise the installer should contact a quali-

fied technician.

Problem

Actions

Transmitter display does not light up:

•

Check that the mains supply to the transmitter is connected and that the

transmitter is switched on.

Transmitter indicates “no radiators”:

Transmitter indicates “radiator fault”:

Ensure that connections to all radiators have been made correctly and that

each radiator’s mains supply is connected and switched on.

•

Ensure that connections to all radiators have been made correctly and that

each radiator’s mains supply is connected and switched on.

Examine the radiator LEDs.

Transmitter indicates “no network”:

Transmitter indicates “network error”:

•

Check that the optical network is connected correctly.

Check that the control unit of the DCN Next Generation conference system

is switched on or disable the network mode (menu 4B).

•

Enable the network mode (menu 4B) or disconnect the transmitter from the

optical network.

Transmitter does not synchronise automatically

to the maximum number of channels in DCN:

Ensure that the number of channels is set to automatic (using menu item

4B).

Emergency contact does not work:

•

Check that the emergency contact is connected correctly.

Check that the audio is connected according to the selected auxiliary input

mode (menu 4I).

Red LED flashes and amber LED is on of one

or both IRED panels of a radiator:

•

IRED panel is in temperature protection mode. Check that the natural air-

flow around that radiator is not obstructed. If not so, replace the radiator.

Both red LED and amber LED are on of one or

both IRED panels of a radiator:

IRED panel malfunctions and the radiator should be replaced.

Infra red receiver fails to function properly:

If disposable batteries are used, check whether the batteries have suffi-

cient capacity and whether they are inserted with the correct polarity.

If a battery pack is used, ensure that the battery pack is fully charged.

Ensure that the headphone is connected properly.

•

Switch the receiver on and check whether the display indicates a channel.

Ensure that the receiver picks up sufficient IR signal and check whether

the antenna symbol becomes visible.

•

Enable the mini radiator (menu 4M) and check the receiver by holding it in

front of the mini radiator of the transmitter.

•

Ensure that the volume control is turned up.

Set the transmitter in test mode and check whether the test tone is audible

on the receiver.

•

If the test tone is not audible, do the same test with other receivers.

If all receivers do not work properly at that spot, check the coverage of the

system (see section 1.6).

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Problem

Actions

The charging indicator LED on the receiver is

blinking:

•

Check that the charging unit is used under the specified working conditions

(see technical data).

Check that the receiver contains a battery pack which is connected cor-

rectly.

Ensure that the receiver is at room temperature and re-insert the receiver

in the charging unit.

If the charging indicator starts blinking again, replace the battery pack and

check whether the problem is resolved.

Receiver discharges very quickly:

Bad coverage:

•

Replace the battery pack and check whether the problem is resolved.

Do the tests as described in section 1.6.

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System Environmental Conditions

7 Technical Data

7.1 System Specification

Overall system characteristics

Working conditions

Temperature range

- transport

Fixed/stationary/transportable

-40 to +70 °C (-40 to 158 °F)

+5 to +45 °C (41 to 113 °F)

+5 to +35 °C (41 to 122 °F)

for LBB 4560 range

- operating

•

Conforms to IEC 60914, the international standard

for conference systems

+5 to +55 °C (41 to 131 °F) for

INT-TX range

•

Conforms to IEC 61603 part 7, the international

standard for digital infra-red transmission of audio

signals for conference and similar applications

Maximum relative humidity

Safety

< 93%

According to EN 60065,

CAN/CSA-E65 (Canada and

US) and UL 6500

Transmission Characteristics

IR transmission wavelength

Modulation frequency

870 nm

Carriers 0 to 5: 2 to 6 MHz,

according to IEC 61603 part 7

Carriers 6 and 7: up to 8 MHz

According to EN 60065,

CAN/CSA-E65 (Canada and

US) and UL 1419 for

Protocol and modulation

DQPSK, according to IEC

technique 61603 part 7

LBB 4511/00 and LBB 4512/00

EMC emission

EMC immunity

According to harmonized stan-

dard EN 55103-1 and FCC rules

part 15, complying with the limits

for a class A digital devices

According to harmonized

System Audio Performance

(Measured from the audio input of an INT-TX range

transmitter to the headphone output of an

INT-RX range receiver.)

standard EN 55103-2

Audio frequency response

20 Hz to 10 kHz (-3 dB) at

Standard Quality

EMC approvals

ESD

Affixed with the CE mark

According to harmonized

standard EN 55103-2

20 Hz to 20 kHz (-3 dB) at

Premium Quality

Total harmonic distortion at 1 kHz < 0.05%

Mains harmonics

According to harmonized

Crosstalk attenuation at 1 kHz

Dynamic range

> 80 dB

standard EN 55103-1

Environmental requirements

Contains no banned substances

as specified in UAT-0480/100

(e.g. no cadmium or asbestos)

Weighted signal-to-noise ratio

> 80 dB(A)

Cabling and System Limits

Cable type

75 Ohm RG59

Maximum number of radiators

30 per HF output

900 m (2,970 feet) per HF out-

put.

Maximum cable length

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7.2 Transmitters and Modules

7.2.1 Infra Red Transmitters

Physical Characteristics

7.2.3 Integrus DCN interface module

Physical Characteristics

Mounting

Mounting plate and two screws

included

Dimensions (H x W x D)

Weight

100 x 54 x 231 mm

(39 x 21 x 91 in)

Mounting

Brackets for 19” rack mounting

or fixing to a table top

Detachable feet for free-standing

use on a table top

324 g (0.73 lb)

Dimensions (H x W x D)

92 x 440 x 410 mm

Electrical Characteristics

(3.6 x 17.3 x 16.1 in) for table top

use, without brackets, with feet

See DCN data brochure.

88 x 483 x 410 mm

(3.5 x 19.0 x 16.1 in) for 19” rack

use, with brackets, without feet

36 mm (1.4 in) in front of

brackets, 372 mm (14,6 in)

behind brackets

7.3 Radiators and Accessories

7.3.1 Medium and High Power Radiators

Physical Characteristics

Weight

Finish

6.8 kg (15.0 lbs)

Mounting

Suspension bracket for direct

Charcoal with silver

ceiling mounting

Mounting plates for floor stands

with M10 and 1/2” Whitworth

thread LBB 3414/00 Wall

Mounting Bracket can be used

for fixing radiator to wall surfaces

LBB 4511/00 without bracket:

200 x 500 x 175mm

Electrical Characteristics

Asymmetrical audio inputs

+3 dBV nominal, + 6 dBV

Maximal (+/- 6 dB)

Symmetrical audio inputs

+15 dBV nominal, + 18 dBV

Maximal (+/- 6 dB)

Dimensions (H x W x D)

Emergency switch connector

Headphone output

emergency control input

32 Ohm to 2 kOhm

(7.9 x 19.7 x 6.9 in)

LBB 4512/00 without bracket:

300 x 500 x 175mm

HF input

nominal 1 Vpp, minimum

10 mVpp, 75 Ohm

(11.0 x 19.7 x 6.9 in)

HF output

1 Vpp, 6 VDC, 75 Ohm

Mains voltage

Power consumption

90 to 260 V, 50 to 60 Hz

maximal 55 W

Radiator angle

Weight

0, 15 and 30° for floor-stand

mounting

Power consumption (standby)

29 W

0, 15, 30, 45, 60, 75 and 90° for

wall/ceiling mounting.

LBB 4511/00 without bracket:

6.8 kg (15 lbs)

7.2.2 Transmitter Upgrade Kit range

Physical Characteristics

LBB 4511/00 with bracket:

7.6 kg (17 lbs)

Mounting

Transmitter rear plate and

mounting stub included

325 x 220 x 26 mm

(13 x 9 x 1 in)

LBB 4512/00 without bracket:

9.5 kg (21 lbs)

Dimensions (H x W x D)

Weight

LBB 4512/00 with bracket:

10.3 kg (23 lbs)

425 g (0.95 lb)

Finish

Bronze coloured

Electrical Characteristics

See 7.2.1 INT-TX Transmitter range.

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7.4 Receivers, Battery Packs and

Electrical and Optical Characteristics

Number of IREDs

260 (LBB 4511/00),

480 (LBB 4512/00)

8 Wrms 16 Wpp

(LBB 4511/00),

Charging Units

Total IR output at 20 °C

7.4.1 Pocket Receivers

16 Wrms 32 Wpp

(LBB 4512/00)

Physical Characteristics

Dimensions (H x W x D)

155 x 45 x 30 mm

(6.1 x 1.8 x 1.2 in)

Total optical peak intensity

Angle of half intensity

9 W/sr (LBB 4511/00),

18 W/sr (LBB 4512/00)

+/- 22°

Weight excl. batteries/battery pack 75 g (0.16 lb)

Weight incl. battery pack

Finish

125 g (27 lb)

HF input

nominal 1Vpp, minimal 10 mVpp

90 to 260 V, 50 to 60 Hz

Charcoal with silver

Mains voltage

Power consumption

100 W (LBB 4511/00),

180 W (LBB 4512/00)

8 W (LBB 4511/00),

10 W (LBB 4512/00)

Electrical and Optical Characteristics

IR irradiance level

4 mW/m²per carrier

Power consumption (standby)

Angle of half sensitivity

+/-50°

Headphone output level at 2.4V 450 mVrms (speech at maximum

volume, 32 Ohm headphone)

7.3.2 Wall Mounting Bracket

Physical characteristics:

Headphone output freq. range

Headphone output impedance

Max. signal-to-noise ratio

Supply voltage

20 Hz to 20 kHz

32 Ohm to 2 kOhm

> 80 dB(A)

Dimensions (H x W x D)

200 x 280 x 160 mm

1.8 to 3.6 V, nominal 2.4 V

(battery voltage)

(7.9 x 11.0 x 6.3 in)

1.8 kg (4.0 lb)

Weight

Finish

Power consumption at 2.4 V

Power consumption (standby)

15 mA (speech at maximum

volume, 32 Ohm headphone)

Quartz grey

< 1 mA

7.3.3 Low Power Wide Beam Radiator

Physical Characteristics

7.4.2 NiMH Battery Pack

Physical characteristics:

Mounting

Bracket for ceiling, wall and floor

stand mounting with 3/8“

Witworth thread

Dimensions (H x W x D)

14 x 28 x 49 mm

Dimensions (H x W x D)

176 x 300 x 125 mm

(7 x 12 x 5 in)

(0.6 x 1.1 x 1.9 in)

50 g (0.11 lb)

Weight

Radiator angle

Weight

0° to 90° (without steps)

1.5 kg (3.3 lb)

Electrical characteristics:

Finish

Black

Voltage

2.4 V

Capacity

1100 mAh

Electrical and Optical Characteristics

Number of IREDs

Total IR output

1.8 Wrms 3.0 Wpp

Total optical peak intensity

Angle of half intensity

2.0 W/sr

+/-24° vertical, +/-48° horizontal

Mains voltage

105 to 125 V or 220 to 240 V

internally selectable, 50 to 60 Hz

25 VA

Power consumption

Power consumption (standby)

5 VA

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7.4.3 Charging Units

Chinch connector (male)

Pin 1

Pin 2

Signal +

Signal -

Physical Characteristics

Mounting

LBB 4560/50: screws and

plugs for wall mounting included

LBB 4560/00:

Dimensions (H x W x D)

230 x 690 x 530 mm

(9 x 27 x 21 in)

LBB 4560/50:

130 x 680 x 520 mm

(5 x 27 x 20 in)

Weight excl. receivers

LBB 4560/00: 15.5 kg (34 lbs)

LBB 4560/50: 11.2 kg (25 lbs)

LBB 4560/00: 22.3 kg (49 lbs)

LBB 4560/50: 18.0 kg (40 lbs)

7.5.3 Earphones

Weight incl. 56 receivers

3.5 mm Jack plug

Tip (1)

Signal left

Finish

Charcoal with grey

Ring (2)

Signal Right

Sleeve (3)

Electrical earth/screen

Electrical Characteristics

Mains voltage

90 to 260 V, 50 to 60 Hz

270 W (56 receivers charging)

7 W (no receivers in the char-

ging unit)

Power consumption

Power consumption (standby)

7.5 Connection details

7.5.4 Emergency switch

Terminal block

7.5.1 Mains cables

Blue

Neutral

Brown

Live

Connect the emergency switch to pin 1 and 2.

Green/Yellow

Earth/Ground

7.5.2 Audio cables

3-pole XLR connector (female)

Pin1

Earth

Pin 2

Pin 3

Signal +

Signal -

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7.6 Guaranteed rectangular footprints

LBB 3410/05 at full power

LBB 4511/00 at full power

LBB 4512/00 at full power

number of

carriers

mounting

height

[m]

mounting

angle

[degrees]

area

length

width

offset

area

length

width

[m]

offset

area

length width

offset

[m]

[m ]

[m]

[m ]

[m]

[m ]

[m]

2.5

130

140

120

100

627

620

468

288

196

144

589

551

414

306

256

408

368

418

324

308

322

247

168

132

100

266

234

195

144

195

196

160

144

140

1269

1196

816

480

324

196

1288

988

672

506

400

1080

945

754

676

576

620

468

288

196

144

551

414

306

256

418

324

308

322

247

168

132

100

234

195

144

196

160

144

140

-4

-6

-7

108

-1

-8

-1

-10

-5

-1

-13

-9

2.5

-1

-5

-3

-6

-1

-6

-1

-8

-3

-7

-9

2.5

-1

-4

-1

-5

120

108

100

-1

-6

-7

-5

-4

2.5

-1

-4

-3

108

100

-3.5

-5

(The mounting height is the distance from the reception plane and not from the floor).

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LBB 3410/05 at full power

LBB 4511/00 at full power

LBB 4512/00 at full power

number of

carriers

mounting

height

[feet]

mounting

angle

[degrees]

area

length

width

offset

area

length

width

[feet]

offset

area

length width

offset

[feet]

[feet ] [feet]

[feet]

[feet ] [feet]

[feet]

[feet ] [feet]

[feet]

1419

1518

1287

1089

598

6696

6732

5015

3068

2116

1521

6324

5890

4425

3304

2704

4424

3900

4464

3481

3312

3450

2666

1794

1404

1089

2852

2537

2107

1521

2107

2116

1716

1560

1518

1080

990

108

102

13706

12835

8848

5214

3481

2116

154

151

112

151

125

-13

-20

-23

13892

10625

7268

5400

4356

11659

10235

8075

7225

6195

6732

5015

3068

2116

780

990

1170

858

-3

-16

-26

131

115

105

102

-33

-3

-30

-43

690

598

529

460

-3

-10

-16

1521

5890

4425

3304

2704

4464

3481

3312

3450

2666

1794

1404

1089

2537

2107

1521

2116

-20

320

460

-3

-10

-20

-23

-26

-30

208

-3

676

-13

-16

1287

1170

1089

676

-3

-16

-13

-20

-23

897

1716

660

1560

1518

759

690

1080

990

529

-3

400

-10

676

-13

529

1170

1089

529

-11

-16

(The mounting height is the distance from the reception plane and not from the floor).

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Product index

Transmitters

INT-TX04

INT-TX08

INT-TX16

INT-TX32

INT-TXK04

INT-TXK08

INT-TXK16

INT-TXK32

4-channel transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

8-channel transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

16-channel transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

32-channel transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

4-channel transmitter upgrade kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

8-channel transmitter upgrade kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

16-channel transmitter upgrade kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

32-channel transmitter upgrade kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Interface module

LBB 3423/20

Integrus DCN interface module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Radiators

LBB 4511/00

LBB 4512/00

LBB 3414/00

LBB 3410/05

Medium-power radiator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

High-power radiator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

Wall mounting bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

Low power wide beam radiator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

Receivers

LBB 4540/04

LBB 4540/08

LBB 4540/32

LBB 4550/00

4-channel pocket receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

8-channel pocket receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

32-channel pocket receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

Rechargeable NiMH battery pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

Headphones

LBB 3441/10

LBB 3442/00

LBB 3443/00

Under the chin stereo headphones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

Single earphone (mono) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

Stereo headphones 49

Charging units

LBB 4560/00

LBB 4560/50

Charging suitcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

Charging cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

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Data subject to change without notice

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