Table of Contents
SNMP ....................................................................................................................................... 1-6
SNMP Management Information Base .................................................................................... 1-7
Traps ........................................................................................................................................ 1-8
Alarms .................................................................................................................................... 1-10
Autonomous Dial-out Alarm Reporting .................................................................................. 1-10
EMU Jumper Settings .............................................................................................................. 2-1
EMU Installation ....................................................................................................................... 2-2
Local Terminal Connections ..................................................................................................... 2-5
Remote Terminal and Local Shelf Modem Connections .......................................................... 2-7
Chapter 3: Menu Navigation and Multishelf Configuration ........................................ 3-1
Network Parameters Menu ................................................................................................ 3-8
SNMP Parameters Menu ..................................................................................................3-11
Set Date and Time ........................................................................................................... 3-17
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Set Shelf ID ...................................................................................................................... 3-19
Terminal Settings .............................................................................................................. 3-20
Managing Firmware Through the Upload Menu .................................................................... 3-24
Appendix A: Specifications .........................................................................................A-1
Alarms ......................................................................................................................................A-1
Power Requirements ................................................................................................................A-1
Environmental ..........................................................................................................................A-1
Regulatory Approvals ...............................................................................................................A-1
Compatibility .............................................................................................................................A-1
Appendix B: Product Support .....................................................................................B-1
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List of Figures
Figure 1-1. EMU-830 Front Panel ....................................................................................... 1-2
Figure 1-2. Local Management of a Single Shelf Using RS-232/Telnet ............................. 1-4
Figure 1-4. Multishelf TAO Network Screen ....................................................................... 1-5
Figure 1-5. Multishelf TAO Main Menu Screen ................................................................... 1-5
through SLIP ..................................................................................................... 1-7
Figure 1-7. EMU-830 Alarm Relay Diagram ..................................................................... 1-10
Figure 1-8. External Shelf Clock and EMU-830 List 6A Backup Circuit ........................... 1-11
Figure 2-2. Removing the EMU-Slot Faceplate from EMS-830 .......................................... 2-2
Figure 2-3. Installing the EMU-830 into Slot 17 of EMS-830 .............................................. 2-3
Figure 2-4. 10BASE-T Multishelf Cable Connections ......................................................... 2-4
Figure 2-7. Modem to EMU Serial Cable Pinouts ............................................................... 2-9
Figure 2-8. Modem to SLIP Port Cable Pinouts ................................................................ 2-10
Figure 3-1. Logon Screen Dialog Box ................................................................................. 3-3
Figure 3-2. Network Screen ................................................................................................ 3-4
Figure 3-3. Main Menu Screen ........................................................................................... 3-5
Figure 3-4. Config Menu ..................................................................................................... 3-8
Figure 3-5. Network Parameters Menu ............................................................................... 3-9
Figure 3-6. SNMP Parameters Menu ............................................................................... 3-11
Figure 3-7. Modem Parameters Menu .............................................................................. 3-14
Figure 3-8. LOSW* and LOSW1 Alarm Reporting Screen ............................................... 3-15
Figure 3-9. LOS*, PFO* and LOSW* Alarm Reporting Screen ........................................ 3-16
Figure 3-13.Change Password Dialog Box ....................................................................... 3-19
Figure 3-15.Terminal Settings Menu .................................................................................. 3-20
Figure 3-16.Restore To Factory Defaults Warning Prompt ................................................ 3-21
Figure 3-20.Upload to Line Unit Dialog Box ...................................................................... 3-25
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Figure 3-25.TFTP Upload EMU Prompt ............................................................................ 3-29
Figure 3-29.Remote EMU Upload Message ..................................................................... 3-31
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List of Tables
Table 1-1. EMU-830 List 4A and 6A Front Panel Components ........................................... 1-2
Table 1-2. WorldDSL Traps .................................................................................................. 1-8
Table 3-1. Console Menu Navigation Keys .......................................................................... 3-1
Table 3-2. Logon, Network, and Main Menu Screen Selections .......................................... 3-2
Table 3-3. DSL Line Unit Status Conditions ......................................................................... 3-6
Table 3-4. DSL Circuit Alarms in Order of Severity .............................................................. 3-6
Table 3-5. Network Parameters ......................................................................................... 3-10
Table 3-6. SNMP Parameters Menu .................................................................................. 3-12
Table 3-7. Data in Inventory Information Screen ................................................................ 3-23
Table 3-8. Line Unit Uploads .............................................................................................. 3-25
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ABOUT THIS MANUAL
INTRODUCTION
This manual contains information on the ADC® WorldDSL™ EMU-830 (hereafter referred to as the “EMU-830”). An
Exchange Office Management Unit (EMU) is installed in a WorldDSL Exchange Office Management Shelf (EMS).
The EMU provides alarm, fault, configuration, and performance management of HDSL and G.SHDSL circuits
deployed from a WorldDSL shelf.
ORGANIZATION
This manual includes the following chapters:
Chapter
Description
Summarizes the features and functionality provided with the
EMU-830 management unit.
Provides procedures for installing the EMU-830 unit.
Describes how to navigate management unit screens and
configure shelf, alarm, performance, and system settings.
Summarizes alarm, power, and card compatibility requirements
for the EMU-830.
Provides information on how to contact the ADC Technical
Support group.
Defines abbreviations and acronyms for the ADC WorldDSL
product family.
INTENDED AUDIENCE
This manual is intended for anyone needing to install, operate, and maintain an ADC WorldDSL EMU-830.
CONVENTIONS
The following style conventions and terminology are used throughout this guide.
Element
Bold font
Meaning
Text that you must input exactly as shown (e.g., type 1 for card 1), menu buttons
(e.g., ACCEPT SHELF OPTIONS) or menu screen options (e.g., ALARMS screen) that
you must select
Italic font
Variables that you must determine before inputting the correct value (e.g., Password )
Monospace font
References to screen prompts (e.g., Invalid Password...Try Again:.)
Reader Alert
Meaning
Alerts you to supplementary information
IMPORTANT
Alerts you to supplementary information that is essential to the completion of a task
!
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Reader Alert
Meaning
Alerts you to possible equipment damage from electrostatic discharge
ATTENTION
Alerts you to possible data loss, service-affecting procedures, or other similar type
problems
CAUTION
Alerts you that failure to take or avoid a specific action might result in hardware damage or
loss of service
WARNING
DANGER
Alerts you that failure to take or avoid a specific action might result in personal harm
EU COMPLIANCE
This product has been CE marked in accordance with the requirements of European Directive 73/23/EEC; the
following mentioned product is in conformity with Low Voltage Directive 73/23/EEC in order to comply with the
requirements in the Council Directive 73/23/EEC relating to electrical equipment designed for use within certain
voltage limits and the Amendment Directive 93/68/EEC.
For safety evaluation of the compliance with this Directive 73/23/EEC, these standards were applied:
IEC 60950:1999, EN 60950:2000.
INSPECTING YOUR SHIPMENT
Upon receipt of the equipment:
• Unpack each container and visually inspect the contents for signs of damage. If the equipment has been dam-
aged in transit, immediately report the extent of damage to the transportation company and to ADC. Order
replacement equipment, if necessary.
• Check the packing list to ensure complete and accurate shipment of each listed item. If the shipment is short
or irregular, contact ADC as described in Appendix B: “Product Support” on page B-1. If you must store the
equipment for a prolonged period, store the equipment in its original container.
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1
Chapter
OVERVIEW
The EMU-830 provides management for HDSL and G.SHDSL circuits using either of the following methods:
• One or more shelves of HDSL or G.SHDSL circuits can be managed by connecting a management terminal (or
PC with terminal emulation software) to the EMU-830 of one shelf. The management terminal (or PC) can be
connected to the EMU-830 either directly (or through modems over a dial-up network). When two or more
shelves are present, the Ethernet ports of each shelf can be interconnected to form a Local Area Network
(LAN). This method of management is referred to as Multishelf Terminal Access Option (Multishelf TAO).
• One or more shelves of HDSL or G.SHDSL circuits can be managed over a LAN using the Simple Network
Management Protocol (SNMP). SNMP can access a shelf through its 10BASE-T Ethernet port or through its
Serial Line Interface Port (SLIP) over dial-up modem connections. These methods of management are referred
to as SNMP through LAN and SNMP through SLIP. The StarGazer application can be used to manage
WorldDSL shelves with the EMU-830 using SNMP through LAN.
• Management of a single shelf or multshelf TAO using Telnet.
The EMU-830 List 4A and List 6A are CE marked.
NEW FEATURES
New features in this release include management of new V11 WD92xGx line cards.
Note: DSL is used throughout the remaining pages of this document when referring to both HDSL and
G.SHDSL.
STANDARD FEATURES
Standard features of the EMU-830 include:
• Support of Multishelf TAO
• Support of Point-to-Multipoint (PTM) application mode (HDSL)
• Support of Single-Pair application, Two Pair, 1+1 Application Modes (WD92xGx)
• Support of Telnet access for TAO over Ethernet or SLIP port
• Doubler support for two-pair line units (HDSL)
• Support of rate-selectable HDSL line and desktop units
• Universal Termination Units (UTUs) supported as a Line Termination Unit (LTU) or Network Termination Unit
(NTU) through SNMP (HDSL and G.SHDSL 1-pair)
• WorldDSL WD92xGx G.SHDSL 2-pair line cards (G.703, Nx64K, Ethernet) configurable as STU-C or STU-R
• User programmable baud rates for SLIP port
• Chassis slots & DSL loops identified in alarm reports
• Configuration changes automatically saved in NVRAM
• Automatic log out after 20 minutes of keyboard inactivity
• Backup timing circuit for external shelf clock on EMU-830 List 6A
• Firmware download protocol (TFTP, XModem)
• Traps Generation
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FRONT PANEL
Figure 1-1 and Table 1-1 identify and describe the front-panel components of the EMU-830 Lists 4A and 6A.
POWER
FAIL
System status LEDs
EXT COMM
CRITICAL
Alarm LEDs
MAJOR ALM
MINOR
Alarm cut-off LED
and switch
ACO
Reset switch
RESET
V.24 (RS-232) console port
V.24
EMU-830
Figure 1-1. EMU-830 Front Panel
Table 1-1. EMU-830 List 4A and 6A Front Panel Components
Name
System Status LEDs:
Power
Mode
Function
Green
Indicates power to the EMU-830.
Indicates system failure. a
Fail
Red
EXT Comm
Green
Indicates when data is being transmitted from the EMU-830
console port to a management station.
Alarm LEDs:
Critical ALM
Major ALM
Minor ALM
Red
Indicates a critical alarm condition.
Indicates a major alarm condition.
Indicates a minor alarm condition.
Yellow
Yellow
Alarm Cut-off LED and Switch:
ACO LED
Green
On/Off
Indicates the Alarm Cut-Off (ACO) was activated.
ACO switch
Activates ACO from the front panel if an alarm is active.
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Name
Mode
Function
Resets the EMU-830 hardware.
Reset switch
V.24 (RS-232) console
port
Provides access to EMU console menus either by local terminal
connected to console port via serial cable or by remote terminal
connected to console port via modems. Also supports
autonomous dial-out reporting of alarms to management station.
a. It is normal for the Fail LED to illuminate briefly when power is applied to the EMU-830.
MAJOR COMPONENTS
Major components of the EMU-830 management unit include:
• 68302 processor
• 2 MB Flash RAM program memory
• Ethernet 10BASE-T port
• Asynchronous Serial Line Internet Protocol (SLIP) port (RS-232/RS-485)
• Front panel V.24 (RS-232) console port
• Audible and visual relays for critical, major, and minor alarms
• Backup timing circuit for external shelf clock (EMU-830 List 6A only)
The EMU-830 Flash RAM program memory permits firmware upgrades through TFTP or Xmodem downloads
Note: A total or partial failure of the EMU-830 affects only the centralized management capabilities of the
system, it does not affect the DSL circuits deployed in the shelf. In case of EMU-830 failure, the HDSL cards
can be managed directly from their front panel V.24 Craft port. To use the local management RS-232
interface of an HDSL card it is necessary to remove the EMU-830 from the shelf. To manage a G.SHDSL
card using an RS-232 interface, it is not required to remove the EMU-830 from the shelf.
MULTISHELF TAO
Multishelf TAO is supported through the EMU-830 front panel V.24 console port and provides an asynchronous,
maintenance terminal, auto-baud interface where you can:
• Monitor all shelf and DSL circuit alarms through a single common screen
• Communicate to a selected shelf and DSL card using the standard line unit console menus
• Set up network configuration parameters and SNMP parameters
• Configure the common equipment and shelf-wide alarms
Figure 1-2 on page 1-4 illustrates local management of a single shelf using TAO. The shelf communicates with the
local terminal (or PC) through the EMU-830 V.24 console port. Figure 1-3 on page 1-4 illustrates remote
management of multiple shelves at two sites using Multishelf TAO. Up to 32 shelves at each site are connected over
a LAN. The IP address and subnet mask are configured to place all shelves at one site on the same subnet. Each
multishelf network communicates with the common network management station over the dial-up Public Switched
Telephone Network (PSTN).
Multishelf TAO is also supported using Telnet to 10BaseT port of an EMU-830.
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WorldDSL
Shelf
GSM
Base Station
DSL Lines
Exchange
Switch
NTU/STU-R
NTU/STU-R
Video
Conference
PBX
To EMU
10Base-T
port
To EMU Console port
from PC serial port
PC running
Telnet Client
VT100 dumb
terminal or
PC with terminal
emulation software
Figure 1-2. Local Management of a Single Shelf Using RS-232/Telnet
Network Management Station
Exchange Office 1
Exchange Office 2
DSL
Network Management Station
PC running Telnet
Client/StarGazer
VT-100 dumb terminal
or PC with terminal
emulation software
DSL
Lines to
NTUs/
STU-Rs
Lines to
NTUs/
STU-Rs
Printer
Modem
DSL
DSL
Lines to
NTUs/
STU-Rs
Lines to
NTUs/
STU-Rs
Up to 32 shelves linked
over Ethernet network
DSL
DSL
Lines to
NTUs/
STU-Rs
Lines to
NTUs/
STU-Rs
EMU
10Base-T
Port
Modem
PSTN
Modem
Ethernet
Network
Modem connected to
console port of any EMU
Modem connected to
console port of any EMU
Ethernet Hub/
Switch
Figure 1-3. Remote Management of Multiple Shelves at Two Sites Using Multishelf TAO
The Multishelf TAO firmware allows the DSL circuits in a single shelf or a network of shelves to be managed from a
single point-of-access (the EMU-830 console port of one shelf or using a Telnet session to one EMU-830). The
alarm status for each shelf in a multishelf network can be viewed on a single Network screen (Figure 1-4 on page 1-
5), and the alarm status of each DSL circuit in a selected shelf can be viewed on a single Main Menu screen (Figure
1-5 on page 1-5). Each EMU-830 constantly monitors the DSL cards in its shelf for alarm conditions and
automatically updates the alarm status.
From the TAO Network screen (Figure 1-4 on page 1-5), you can access any shelf in the network and then, from the
Main Menu screen (Figure 1-5 on page 1-5), log into any DSL card installed in the shelf. Logging into an DSL card
provides access to that card’s maintenance menus and is equivalent to connecting a terminal directly to the Craft
port on the HDSL card.
Note: HDSL cards cannot be directly managed from their front-panel craft port when the EMU-830 is
installed in the shelf. G.SHDSL (UTU-91x and WD92xGx) cards can be managed from their front-panel craft
port when the EMU-830 is installed in the shelf. Telnet can also be used to manage multiple EMU-830s
using multishelf TAO in the same logical IP network.
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Figure 1-4. Multishelf TAO Network Screen
Figure 1-5. Multishelf TAO Main Menu Screen
A multishelf network is created by connecting the local area network (LAN) to the 10BASE-T Ethernet connector
available on a shelf. Each shelf must have an EMU-830 management unit installed. A VT100 terminal (or PC) is
connected either locally or remotely (through modems), or through Telnet access to the console port of one EMU in
the network. The shelf containing this EMU is called the local shelf. The local shelf coordinates communication with
all other shelves in the network, which are called the remote shelves.
It is not necessary for you to explicitly identify each shelf in the network, as the local shelf automatically discovers
them. You must, however, pre-configure the EMU in each shelf with a unique IP address and subnet mask to place
all the shelves on the same subnet.
Note: Shelf networks cannot be connected through a router because the local shelf uses UDP-broadcast
messages as a mechanism to automatically discover other shelves in the network, and routers generally
filter these broadcasts. For connecting multiple devices, use an Ethernet hub or switch instead.
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In a remotely managed configuration, an external modem must be connected to the EMU-830 front panel V.24
(RS-232) console port. If enabled, alarm conditions cause ASCII messages to be transmitted autonomously over the
dial-up network. These messages can be displayed on a monitor or sent directly to a printer. This provides the
network operator immediate notification of problems. The operator can then initiate a remote TAO session with the
local shelf to further diagnose and correct the problem.
The EMU-830 and the DSL card firmware can be easily upgraded using the Upload utility from the TAO Main menu.
This utility uses TFTP and Xmodem protocols.
A proprietary software download protocol permits firmware to be downloaded to any unit (EMU or DSL line card) in a
multishelf TAO network. This protocol is supported by a special ADC application program that can run on a PC. The
PC connects to the front panel RS-232 V.24 console port of one of the EMUs in the network.
Note: The Multishelf TAO firmware and SNMP agent are factory loaded on all EMU-830 management units.
SNMP
SNMP (Simple Network Management Protocol) is an application layer protocol of the Internet suite of protocols,
commonly referred to as TCP/IP (after the two core protocols⎯Transmission Control Protocol and Internet
Protocol), and is designed to be an "open" (non-proprietary) network management technology capable of managing
internetworking equipment from multiple vendors. SNMP is formally specified in a series of related RFC (Request
For Comment) documents from the Internet Engineering Task Force (IETF). The WorldDSL EMU-830 implements
SNMP version 1. Communications standards supported in Version 1 of the SNMP standard include IP, User
Datagram Protocol (UDP), Internet Control Message Protocol (ICMP), and Address Resolution Protocol (ARP). Two
other protocols, Boot Protocol (BOOTP) and Trivial File Transfer Protocol (TFTP), are also included to support IP
address management and download of EMU-830 code over the network.
In an SNMP managed network, each WorldDSL shelf is considered a managed node and contains an SNMP
software agent that resides in the EMU-830. The software agent provides the operating kernel, SNMP protocols,
transport protocols, and management information. Multiple shelves, each of which deploy up to 16 DSL links, can be
centrally managed from a single SNMP-based Network Management Station. Each DSL link consists of an LTU/
STU-C unit installed in the shelf, a remote NTU/STU-R unit, and possibly one or two mid-span doublers. Doublers
are currently supported only with HDSL (e.g., LTU-804, UTU-804) line cards. A link is managed as one DSL system
by SNMP.
SNMP access is provided over two types of interfaces:
• SNMP through LAN. An interface using an Ethernet port (10BASE-T) on the WorldDSL shelf that supports
UDP over IP.
• SNMP through SLIP. An out-of-band (or dial-up) serial interface using the RS-232/RS-485 configurable SLIP
port on the WorldDSL shelf, which supports IP over a SLIP at a maximum 19.2k baud rate.
The network of WorldDSL shelves can be managed by one or more SNMP management stations at the same time
over either of the SNMP interfaces. Management can be performed through the 10BASE-T Ethernet port and the
RS-232/RS-485 SLIP port simultaneously. StarGazer manages WorldDSL shelves using SNMP through LAN.
Figure 1-6 on page 1-7 shows a network of WorldDSL shelves managed by SNMP through LAN and SNMP
through SLIP.
STU-C and STU-R terminology is used with the G.SHDSL WD92xGx line cards.
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Network Management Station
Unix workstation or PC running SNMP
Management Station software/StarGazer
Ethernet LAN
Ethernet
Network
PSTN
Modem
SNMP
via
LAN
SNMP
via
SLIP
Site #2
Site #3
Site #3
Site #1
Ethernet LAN
Ethernet LAN
Modem
Modem
RS-232/485
SLIP Port
RS-232/485
SLIP Port
WorldDSL Shelf
WorldDSL Shelf
WorldDSL Shelf
WorldDSL Shelf
WorldDSL Shelf
WorldDSL Shelf
WorldDSL Shelf
NTU/STU-R
Managed DSL
link
Figure 1-6. WorldDSL Shelves Managed by SNMP through LAN and SNMP through SLIP
SNMP MANAGEMENT INFORMATION BASE
Simple Network Manage Protocol (SNMP) specifies how to send information between a network management
station and managed devices on a network. Managed devices run a program called an agent. The agent interprets
SNMP requests and responds to them. The management station communicates with the agents in the managed
devices to:
• set configurations
• read configurations
• read status parameters
Management Information Bases (MIBs) define these configurations and status parameters. The Internet
Engineering Task Force (IETF) specifies standard MIBs for certain types of devices, ensuring any generic SNMP
application can manage them. Other vendor-specific MIBs such as those used by ADC, define the configuration,
status, trap, and performance parameters unique to the WorldDSL product line.
The EMU-830 performs as a proxy agent when managing line units. Each managed device has configuration,
status, and statistical information that defines its functionality and operation capabilities.
There are a total of six MIB files that define the SNMP management interface of the ADC WorldDSL product. These
files should be copied into the Network Manager Client MIB Subdirectory. Once copied onto the desired drive they
can be easily accessed by the Network Manager’s MIB compiler. The six MIB files are named as follows:
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IMPORTANT
These MIB files must be used with the management unit software release.
!
• RFC 1213 MIB II. The Internet-standard MIB for network management of TCP/IP-based internets. It defines
objects common to all devices that support SNMP. This includes objects related to generic configuration such
as the device's name (sysName), objects related to the transport protocols (IP, TCP, ICMP, etc.), and a descrip-
tion of the chassis' interface ports (data ports as well as HDSL ports).
• pgmibhd.mib (Common MIB). An enterprise MIB (that is, unique to ADC products) that defines the top-level
branch structure for all ADC products including the WorldDSL product line.
• pgetsi.mib (ETSI Interface MIB). Enterprise MIB containing management objects for the shelf common equip-
ment (chassis and EMU-830) and DSL circuit elements (LTUs/STU-Cs, NTUs/STU-Rs, doublers), excluding
DSL performance related objects which are contained in the DSL MIB. Examples include the EMU-830 LED sta-
tus (emuLedStatus), an LTU/STU-C V.35 port data rate (ltuDataPrtTimeSlots), and PTM managed items.
• pghdsl.mib (DSL MIB). Enterprise MIB containing objects related to the
performance of the DSL links, such as 15-minute and 24-hour performance history.
• pgagtmib.mib (SNMP Agent MIB). MIB containing management objects to control and configure the operation
of the IP and SNMP parameters. Examples include the EMU IP address, boot and image mode, and trap
receiver setup.
• pgetsitr.mib (ETSI SNMP Trap MIB). MIB containing a subset of the RFC 1215 common traps as well as ADC
TRAPS
Traps are autonomous, interrupt-driven messages sent from a managed node (shelf) to a management station to
indicate the occurrence of an extraordinary event (such as alarms or a link going down) or a configuration change
(such as changes in alarm severity settings, circuit IDs, or loopback modes). When an event occurs, the shelf sends
a trap to the management station, which polls the shelf to determine the nature of the event. Circuit Name is also
included in the trap.
A managed node (shelf) can be configured to send traps to up to three trap receivers (that is, management stations).
Table 1-2. WorldDSL Traps
Traps
Cold Start
Definition
MIB II standard trap indicating that the EMU-830 has come on-line.
Authentication failure
MIB II standard trap indicating that the agent received an SNMP message with
an improper community string. For example, an SNMP-managed device
assigned to the community “ETSI” receives a message for a device in the
“HGIS” community.
Link up/link down
DSL circuit alarm
MIB II standard trap indicating a loss of signal condition at one of the
transmission interfaces (E1 or DSL).
ADC enterprise trap sent at the occurrence of an alarm condition on an DSL
circuit if that alarm is of a greater severity than any existing alarms on the
same circuit. Separate trap messages are sent for each DSL circuit in
the shelf.
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Traps
Definition
Enterprise trap that indicates the failure of a -48 V shelf power supply input.
Power supply failure
Multiple DSL loops down Enterprise trap used to indicate when the programmable threshold of the
number of downed DSL loops in the shelf has been exceeded.
System configuration
change
Enterprise trap that signals when a change has occurred in the physical
configuration of the system, such as the insertion or removal of LTUs/STU-Cs.
Line unit configuration
change
Enterprise trap that signals when a change has occurred in the configuration of
a line unit (includes alarm severity settings, circuit IDs, and loopback modes).
BOOTP AND TFTP PROTOCOLS
BOOTP is a UDP/IP-based protocol that allows the EMU-830 to configure itself dynamically without supervision.
BOOTP provides a means for the EMU-830 to learn its protocol configuration, including:
• Local IP address and subnet mask
• Boot Server IP address
• Name of image file to be loaded into memory and executed
• Default router addresses
The BOOTP and TFTP protocols included with the EMU agent software facilitate these methods of software loading
and network configuration.
The EMU can be configured to learn its protocol configuration at reset from the network (by sending a BOOTP
broadcast message that is recognized by the BOOTP server) or from the NVRAM on the EMU. BOOTP provides a
simple means of unit configuration. It also allows the network administrator to dynamically allocate the IP address for
the EMU.
The EMU can also be configured to know where it should get its operational code (image file): either from the
BOOTP server using TFTP or from the flash RAM on the EMU. This allows the EMU to always download the most
recent image file at power-on or reset, and it lets the network administrator keep the image file in a single location for
use by all the WorldDSL shelves.
XMODEM PROTOCOL
The Xmodem protocol permits software to be downloaded to any EMU or line unit (local or remote) from a PC
connected to the EMU front panel V.24 (RS-232) console port.
Associated Upload menus and screens allow selection of any shelf in the network and the EMU or any line unit in
the shelf as the upload target.
The EMU and each line unit is reset and runs the new code following the software download.
Do not abort the download procedure when an XModem transfer is in progress.
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ALARMS
The EMU-830 constantly monitors each of the DSL cards for alarm conditions. When so configured, the EMU-830
provides autonomous dial-out reporting of alarms to remote management stations and printers (see “Autonomous
Dial-out Alarm Reporting” on page 1-10). The EMU-830 List 6A monitors the external 2 MHz clock supplied to the
The alarm status is reported in several ways: alarm LEDs, alarm relays, terminal screens, SNMP traps, and dial-out
reporting. DSL card alarms can be specified as major, minor, or disabled. Shelf alarms can be specified as major,
minor, critical, or disabled. A major alarm is asserted when an alarm condition occurs in a card or shelf that is
specified as major. A minor alarm is asserted when an alarm condition occurs in an DSL card or shelf that is
specified as minor. Only shelf alarms can be classified as critical. A critical alarm is asserted when any shelf alarm
occurs that is specified as critical. Use the TAO Main menu to login to an DSL circuit to configure the DSL card
Six alarm relays are provided for use with external alarm indicators such as lights or buzzers. Each relay is a form C
type which provides three contacts: Common, Normally Open, and Normally Closed. An alarm relay diagram is
Normally Closed
Normally Open
Common
Figure 1-7. EMU-830 Alarm Relay Diagram
The six alarm relays are:
1. Critical Visual
2. Critical Audible
3. Major Visual
4. Major Audible
5. Minor Visual
6. Minor Audible
Additionally, a System ID relay is activated when any minor, major, or critical alarm is active in the shelf.
The Critical Visual and Critical Audible alarm relays and the System ID relay operate in the fail-safe mode. That is,
when power is lost to the EMU-830, the Common contact connects to the Normally Open contact.
The ACO (Alarm Cut-Off) function is used to retire active alarms by resetting the minor, major, and critical alarm
relays (both visual and audible). The Shelf Alarms menu (page C-16) can be used to program which alarm relays
will and will not be retired when ACO is engaged. ACO can be activated by pressing the front panel ACO switch or
by connecting the external ACO input (pin 25 of the Alarm connector on a shelf) to ground. ACO is deactivated when
there are no alarms or when a new alarm occurs.
AUTONOMOUS DIAL-OUT ALARM REPORTING
When connected through a modem to a dedicated telephone line, the EMU-830 can dial-out to a remote
management station or printer to autonomously report DSL card and shelf alarms. For the EMU-830 to perform this
function, you must first configure the EMU Modem Parameters, set the severity of the Shelf Alarms, and enable the
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EXTERNAL SHELF CLOCK BACKUP CIRCUIT
The EMU-830 List 6A includes a backup circuit for the 2.048 MHz external shelf clock. This circuit will continue to
provide a 2.048 MHz clock to the DSL cards in the event the 2.048 MHz external shelf clock is lost. The software
reports the status of this circuit and allows the user to set the severity of the alarm generated when the clock is lost.
Under normal operation the external shelf clock and the backup circuit synchronize their respective clocks through
the EMUs phase-locked loop (PLL) device. In the event the external shelf clock is lost, the oscillator in the backup
circuit will continue to supply the 2.048 MHz clock. A Loss of External Clock alarm is reported to the management
station.
External
Clock
input
Backplane
EMS-83x Shelf
Slot 1
Slot 16
Slot 17
Reference
PLL
2.048 MHz
Source
Oscillator
LTU/STU-C
LTU/STU-C
EMU-830 List 6
Figure 1-8. External Shelf Clock and EMU-830 List 6A Backup Circuit
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2
Chapter
INSTALLATION
This section describes the procedures for installing the EMU-830.
Note: Each shelf in a Multishelf TAO network must have an EMU-830 management unit installed.
Inserting and removing the EMU-830 from a shelf will not affect the operation of the DSL cards installed in
the shelf.
An EMU-830 failure will not affect the operation of the DSL cards installed in the shelf.
EMU JUMPER SETTINGS
EMU-830s are jumper configurable for an RS-232 or RS-485 SLIP port interface. EMUs have an RS-232 factory
setting.
If you use the SLIP port to manage a shelf or shelves, you must configure the SLIP port interface before installing
the EMU-830. Do one of the following:
• For an RS-232 SLIP port interface, install the jumper on two-pin header connector P6 (Figure 2-1). This is the
factory default setting. Set the SLIP port baud rate as instructed in “Configure SNMP Operation Over SLIP” on
• For an RS-485 SLIP port interface, remove the jumper from two-pin header connector P6 (Figure 2-1). Set the
RS-232
P6
Figure 2-1. Location of the SLIP Header Connector P6 on the EMU-830
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EMU INSTALLATION
Install the EMU-830 in an EMS-830 as follows:
Step
Action
1
Use a flat-blade screwdriver to loosen the two screws holding the EMU slot faceplate (Slot 17) in place,
EMS-830 shelf
EMU slot faceplate
Figure 2-2. Removing the EMU-Slot Faceplate from EMS-830
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Step
Action
2
Align the EMU-830 card with the card guides at the top and bottom edges of Slot 17, then push the card
in until the EMU-830 front panel is flush with the front of the shelf (Figure 2-3). The connector positions in
slots 1 through 16 prevent the EMU-830 from being installed in the wrong slot.
EMS-830 shelf
EMU-830
Figure 2-3. Installing the EMU-830 into Slot 17 of EMS-830
3
Tighten the two captive retaining screws on the front of the EMU-830 card.
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MULTISHELF CABLE CONNECTIONS
Note: Multishelf networks cannot be connected through a router because the local shelf uses UDP-
broadcast messages as a mechanism to automatically discover other shelves in the network, and routers
generally filter these broadcasts. A multishelf network is limited to 32 shelves.
Step
Action
1
2
Plug an RJ-45 cable into the 10BASE-T connector at the rear of each shelf.
Plug the other end of the RJ-45 cables into the hub/switch connecting the shelves.
Note: The length of each RJ-45 cable cannot exceed 100 meters (328 feet).
WorldDSL
shelves
Hub/Switch
10BASE-T
connector
RJ-45 cable
Figure 2-4. 10BASE-T Multishelf Cable Connections
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LOCAL TERMINAL CONNECTIONS
The console port of the EMU-830 in the local shelf can be connected directly to a VT100 terminal (or PC). Once
connected, you can use the terminal (or PC) to access the EMU-830 console menus. The console menus allow you
to configure each EMU and DSL circuit in a multishelf network, monitor and test system performance, and display
the inventory of installed DSL units.
The EMU-830 console port in the local shelf can be connected to the DB-9 or DB-25 serial port of a maintenance
terminal or PC. The EMU-830 console port pinouts and the required connections to a DB-9 or DB-25 serial port are
Note: For security purposes, if at any time during a TAO session the EMU-830 DTR input signal is lost, the
session automatically terminates.
Terminal or PC
DB-9 connector
(DTE)
6
4
EMU-830
console port
3
2
DB-9 connector
(DCE)
5
DSR (Data Set Ready)
6
4
3
2
5
DTR (Data Terminal Ready)
TD (Transmit Data)
Terminal or PC
Rd (Receive Data)
GND
DB-25 connector
(DTE)
6
20
3
2
7
Figure 2-5. EMU-830 Console Port Pinouts to DB-9 or DB-25 Connector
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Step
Action
1
Connect a serial cable from the DB-9 or DB-25 serial port on the maintenance terminal or PC to the
Maintenance terminal or
PC with terminal emulation
program
EMU-830
DB-9 or DB-25
serial port
RS-232 cable
V.24 console port
Figure 2-6. Connecting a Maintenance Terminal or PC to the EMU-830 Console Port
2
Configure the maintenance terminal (or PC) for the following communication settings:
• 1200 to 19200 baud (19200 baud is recommended)
• No parity
• 8 data bits
• 1 stop bit
• Flow Control to None
• VT100 Emulation, or ANSI if VT100 is not available
• If your terminal supports a modem initialization string, it should be cleared
Note: If using a PC with the Microsoft Windows terminal emulation program, you must deselect both the
Show Scroll Bars option and the Use Function, Arrow, and Ctrl Keys for Windows option in the Terminal
Preferences menu (choose Settings | Terminal Preferences to access the Terminal Preferences menu).
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REMOTE TERMINAL AND LOCAL SHELF MODEM CONNECTIONS
Remote management of one or more Multishelf TAO sites over a telephone network requires the connection of a
modem to the remote management station and to the EMU residing in the local shelf of each site. Once connected,
the remote management station can access the console menus of one or more multishelf networks to configure,
monitor, and test their EMU and DSL circuits. The local shelf can autonomously report alarms to the management
station through the modem attached to its EMU.
Management Station Internal Modem
An internal modem card provides an RJ-11 jack at the back panel of the management station. If the management
station has an internal modem, plug your phone-line connector into the RJ-11 jack and turn on the management
station. Set up the internal modem for 19,200 baud. If you experience problems, refer to your modem or
management station user manual.
Management Station External Modem
An external modem requires a serial cable, an external power source, and an unused serial port on the back of the
management station.
To connect an external modem to your management station serial port:
Step
Action
1
Plug a serial cable into an available serial port on the back of the management station, using a 9-to-25 pin
converter or gender changer if necessary.
2
3
4
5
Plug the other end of the cable into the serial port on the back of the modem.
At the back of the modem, plug the telephone line into the RJ-11 port labeled "LINE" or "TELCO".
Plug the modem into an external power source and turn it on, then turn on the management station.
Verify that the modem is responding to commands from the management station. Use a communications
program to send an AT command to the modem. The modem responds with the string "OK" if operation is
successful.
6
7
Configure the shelf modem for remote alarm reporting as instructed in “Remote Alarm Reporting” on
If you experience problems refer to the modem or management station user manual.
Local Shelf Modem for Multishelf TAO
The local shelf in a remotely managed Multishelf TAO network uses an external modem connected to its EMU
console port. The modem, however, must be programmed with a PC before it can be connected to the EMU (the
EMU residing in the shelf cannot control a modem as a PC can).
Note: The shelf modem can be attached to the EMU in any shelf. The shelf with the modem attached is the
“local” shelf. If managing a shelf through its SLIP port, see “Shelf Modem for SLIP Operation” on page 2-9.
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Step
Action
1
Connect the shelf modem to the PC and verify that it is in working condition as described in the preceding
section, “Management Station External Modem.”
2
Use a communications program to send the following initialization string to the modem:
AT&F
This string resets the modem to its original factory configuration and clears any previous programming
that can conflict with the communication between the modem and the EMU.
3
Send the following configuration string to the modem:
ATE0Q1S0=1&K0Y0&W0
This string configures the modem to operate properly with the EMU. The commands in this configuration
string are as follows:
AT
The command prefix indicating an AT command
Do not echo input characters
E0
Q1
Do not return result codes
S0=1
&K0
Y0
Answer the phone after the first ring
Disable flow control
Use profile 0 as the power-up configuration
Store current configuration as profile 0
&W0
Note: The shelf modem does not respond with an "OK" when you enter the above string. This
string disables all response codes and echo capability in the modem. The response codes
are not used by the EMU.
When the modem is properly configured, the Auto Answer (AA) lamp on the modem panel
lights, indicating that the modem is waiting for the phone to ring to answer an incoming call
from the management station PC.
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Step
Action
4
Connect a serial cable (with pinouts as specified below) to the EMU console port connector (DB-9F) of
the local shelf.
IMPORTANT
The modem-to-EMU serial cable must have the connector pinouts shown in
Figure 2-7 to function correctly.
!
RD (Receive Data)
TD (Transmit Data)
GND
DCD (Data Carrier Ready)
DSR (Data Set Ready)
Figure 2-7. Modem to EMU Serial Cable Pinouts
Plug the other end of the cable into the serial port on the back of the modem.
At the back of the modem, plug a dedicated telephone line into the RJ-11 port labeled LINE or TELCO.
Plug the modem into an external power source and turn it on.
5
6
7
8
Configure the EMU modem parameters for remote alarm reporting as instructed in “Modem Parameters
SHELF MODEM FOR SLIP OPERATION
One or more shelves can be remotely managed by connecting an external modem to the RS-232/RS-485 SLIP port.
However, when managed through the SLIP port, each shelf must be assigned a unique IP address (only one shelf is
accessed with each dial-up connection). Figure 1-6 on page 1-7 show WorldDSL shelves managed by SNMP
through SLIP.
This procedure requires the use of a 25-wire straight-through cable, with a male DB-25 connector on each
To connect an external modem to the RS-232/RS-485 SLIP port:
Step
Action
1
2
3
Connect one end of the 25-wire cable to the RS-232/RS-485 (SLIP) connector on the EMS shelf.
Connect the other end of the cable to a standard modem.
If the modem has configuration switches or jumpers, set the switches or jumpers for factory default
operation. Refer to the modem user manual for more information.
4
5
At the back of the modem, plug a dedicated telephone line into the RJ-11 port labeled LINE or TELCO.
Plug the modem into an external power source and turn it on.
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Step
Action
6
Configure the EMU for SNMP operation over SLIP (see “Configure SNMP Operation Over SLIP” on
7
Configure the EMU modem parameters for remote alarm reporting. Refer to “Modem Parameters
SD (Send Data)
RD (Receive Data)
RTS (Request to Send)
CTS (Clear to Send)
DSR (Data Set Ready)
GND
DTR (Data Terminal Ready)
Figure 2-8. Modem to SLIP Port Cable Pinouts
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3
Chapter
MENU NAVIGATION AND MULTISHELF CONFIGURATION
CONSOLE MENU NAVIGATION
Single keystrokes are used to make menu selections and, where applicable, select available options. Use the keys
Table 3-1. Console Menu Navigation Keys
Press this Key
To Perform this Function
Alphanumeric keys
Select and execute an underlined or highlighted menu item. Also used for
typing in text fields.
Pull down a menu from the Menu bar, or select (highlight) a menu item.
Ç and È keys
TAB key
Same as È key.
Traverse the Menu bar, except when in a text entry field.
Å and Æ keys
SPACEBAR
Activates Autobaud feature and toggles the menu item settings (for example,
toggles from Enabled to Disabled).
ESC key
ENTER
Exits the current screen and returns to the previous screen. Selection changes
made on the current screen are discarded. Pressing ESC in a text field cancels
the text entry and restores the old value.
Submits all selection changes on the current screen and makes them effective
in the system. Also used to toggle menu item settings.
Note: The shelf with the ">" symbol (for example, >Shelf #28) is the local shelf connected to the
management station. Other shelves (without the > symbol) are remote shelves connected through an
Ethernet subnet.
CONSOLE MENU OPTIONS
See Table 3-2 on page 3-2 for a listing of screens, menus, and menu items you can select from the Network and
Main Menu screens.
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Chapter 3: Provisioning
Table 3-2. Logon, Network, and Main Menu Screen Selections
Displays and Functions
Screens and Selections
Logon Password screen
<Password> or ENTER
Displays Network screen
Network screen (Figure 3-2 on
Displays shelf ID and alarm status for all shelves in the network
Login
Upload
Quit
Log off the system
Main menu screen (Figure 3-3
Displays alarm status for selected shelf
Main
Displays Config menu to set any of the following:
Config
Inventory
Quit
Display information about the EMU including serial number, date of
Go back to Network screen
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Chapter 3: Provisioning
MULTISHELF CONFIGURATION
The sections that follow contain instructions on how to access the EMU-830 console menus to configure and
monitor each EMU and DSL circuit in a multishelf network.
Note: Multishelf TAO has two main screens, the Network screen and the Main menu screen. Logging on
displays the Network screen (Figure 3-2 on page 3-4); selecting a shelf in the Network screen displays the
Main menu screen (Figure 3-3 on page 3-5); typing the letter Q returns to the Network screen; typing the
letter Q in the Network screen quits the application. The Multishelf TAO screens illustrated in this practice
were displayed by the Windows 3.1 Terminal emulation utility.
Logging On
To log on to the EMU console menus:
Step
Action
1
Press the SPACEBAR several times to activate the Autobaud feature. Supported baud rates are 1200,
Figure 3-1. Logon Screen Dialog Box
2
Note: The factory-default password is ENTER. If you establish a different password, you must
type the new password in the Logon screen dialog box on a subsequent log on.
If the system does not respond, verify that the Hardware Flow Control of the VT-100 terminal
(or PCs terminal emulation utility) is OFF.
If the password is forgotten, please contact ADC customer service.
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Chapter 3: Provisioning
Network Screen
Note: The shelf with the > symbol (for example, >Shelf #28 in Figure 3-2) is the local shelf connected to the
management station PC. Other shelves without the > symbol are remote shelves connected to the local
shelf through an Ethernet subnet.
The Network screen (Figure 3-2) includes the Login command, Upload menu, and Quit command. The Upload
menu provides the mechanism to upload image files to local or remote line units or to local or remote EMUs for
system management. See “Managing Firmware Through the Upload Menu” on page 3-24 to use this command. The
Quit command provides a logout from the Network screen.
The Network screen also includes the Shelf ID field and the Alarm Status field. The Shelf ID field initially shows Shelf
1 for all shelves in this subnet until the shelf ID is configured for each shelf (see “Set Shelf ID” on page 3-19 for
configuring the Shelf ID). The Alarm Status field shows the active alarm status of each shelf in this multishelf
network.
Figure 3-2. Network Screen
Logging in to the Main menu
To log in to the Main menu:
Step
Action
1
In the Network screen, select a shelf from 1 to 32 for which you want to view EMU or Line Unit
configuration. Use the Ç and È arrow keys.
2
Type the letter L (or press ENTER). The Main menu screen for the selected shelf is displayed
Main Menu
Use the Å arrow key to select Main, then press ENTER to display the Main menu screen (Figure 3-3 on page 3-5).
The Main menu screen shows the alarm status for a selected shelf and its DSL cards. It also allows you to log into
the console menu for any card in the shelf and to disable the card’s alarm reporting functions.
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Figure 3-3. Main Menu Screen
Shelf Alarms
The state of shelf and DSL alarms is continuously updated in the Main Menu screen. There are two possible shelf
alarms, both of which can be classified as Minor, Major, Critical, or Disabled:
• Power Supply Failure (POWER A or POWER B). This is a loss of -48 Vdc power at input A or B on the rear of
the shelf.
• DSL alarm (HDSL LINKS). This alarm indicates when a programmable number of DSL loops in the shelf are
down. A loop is considered to be one copper pair. A shelf containing 16 DSL cards has either 16 loops (single-
pair) or 32 loops (two-pair). If the signal at the application interface of a one- or two-pair HDSL card is lost, both
HDSL loops in that circuit are considered down.
HDSL/G.SHDSL Line Unit Status
The HDSL Line Unit Status field displays the status for each of 16 circuits that can be managed by the EMU-830.
For each circuit, the most severe active alarm is displayed. For each slot, the basic status of the circuit is displayed.
The status conditions for each slot are described in Table 3-3 on page 3-6. Table 3-4 on page 3-6 lists the DSL
circuit alarms in order of severity.
Logging in to an HDSL/G.SHDSL Circuit
Logging into the console menu of an DSL card from this screen is equivalent to connecting a VT100 terminal or PC
directly to the card’s craft port. It permits you to change configurations, monitor performance, and test circuits of DSL
DSL/G.SHDSL Alarm Reporting
The Main menu screen also allows you to disable an DSL card’s alarm reporting functions. You can then access the
card’s console menu without sending false alarms to the management station. See “Enabling or Disabling Alarm
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Table 3-3. DSL Line Unit Status Conditions
Description
State
Normal
Indicator
–
/
The circuit has no active alarms. This can be because one or more of the
circuit's alarms are disabled from being reported at the DSL card.
Not Occupied
No unit is installed in the slot, or the unit is not recognized.
Alarms Disabled D
Alarm reporting has been disabled for this circuit at the EMU-830. This can be
changed using selection 2 from the Main menu.
Not Manageable X
The DSL card in the slot does not support centralized management by the
EMU-830.
NTU/STU-R
N
*
The DSL card in the slot is an NTU/STU-R card. Alarms for a circuit with an
NTU/STU-R card residing in the managed shelf are not reported on this screen.
You can, however, login to the NTU/STU-R card using selection 1 from the Main
menu to view the alarm status.
Both loops
Alarm
The indicated alarm involves both loops.
Alarm
The most severe active alarm in the circuit is shown.
abbreviation
Table 3-4. DSL Circuit Alarms in Order of Severity
Priority
Name
Description
Card Type
1
PFO
PFO1
PFO2
Power feed open on both loops
Power feed open on loop 1
Power feed open on loop 2
HDSL
2
3
PFS
PFS1
PFS2
Power feed short on both loops
Power feed short on loop 1
Power feed short on loop 2
HDSL
LOSW
LOSW1
LOSW2
Loss Of Synch Word on both loops
Loss Of Synch Word on loop 1
Loss Of Synch Word on loop 2
HDSL
G.SHDSL
4
5
5
6
LOS
Loss of Signal on any G.703 interface
HDSL
G.SHDSL
LOC
Loss of clock (sourced from External
clock, or Nx64K data port)
HDSL
UTU-91X
LEC
LDC
Loss of External clock alarm
Loss of Nx64K data port clock alarm
WD92xGx
MAL
MAL1
MAL2
Below margin threshold both loops
Below margin threshold on loop 1
Below margin threshold on loop 2
HDSL
G.SHDSL
7
8
LAL
LAL1
LAL2
Loop Attenuation alarm both loops
Loop Attenuation alarm loop 1
Loop Attenuation alarm loop 2
HDSL
G.SHDSL
ESAL
ESAL1
ESAL2
Errored Second alarm both loops
Errored Second alarm on loop 1
Errored Second alarm on loop 2
HDSL
G.SHDSL
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9
AIS
LFA
RAI
Alarm Indication signal on any G.703
interface
HDSL
G.SHDSL
10
11
Loss of Frame alarm on any G.703
interface
HDSL
G.SHDSL
Remote Alarm Indication on any G.703
interface
HDSL
G.SHDSL
Logging into DSL Circuits
To log into the console menu for an DSL card:
Step
Action
1
2
3
and press ENTER. The Enter line unit number field is displayed.
Enter a line unit number and press ENTER. The HDSL card console menus display. See the line unit
technical practice for details on console menu usage.
To exit the HDSL console menus and return to the TAO Main menu screen, press CTRL+X or select Quit
from the menu (if running HDSL unit firmware version 3.10).
Note: The V.24 Craft port is disabled on all HDSL cards when an EMU-830 is installed in the shelf. An
HDSL card craft port can be used directly if the EMU-830 is removed from the shelf. The V.24 Craft Port is
enabled on all G.SHDSL line cards.
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Chapter 3: Provisioning
Enabling or Disabling Alarm Reporting
To enable or disable alarm reporting for DSL circuits:
Step
Action
1
and press ENTER. The Enter line unit number field displays the current line unit selection and Enable or
Disable setting.
2
Enter a line unit number, then use the Ç arrow key to select the current Enable or Disable setting.
Use the SPACEBAR to select Enable or Disable.
3
4
Press ENTER to confirm settings.
Config Menu
In the Main menu screen, use the Æ arrow key to select Config; then press C to display the items in the Config
menu (Figure 3-4). Provisioning of all shelf parameters is conducted from the Config menu. Each menu item is
described in the paragraphs that follow.
Figure 3-4. Config Menu
Network Parameters Menu
In the Config menu, press N to display the Network Parameters menu (Figure 3-5 on page 3-9). This menu is used
to identify and change the EMU network parameters. The Network Parameters menu options are listed in Table 3-5
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Chapter 3: Provisioning
Figure 3-5. Network Parameters Menu
Note: The network parameters for each EMU must be configured individually. Once configured, each shelf
reports its status and alarms to the local shelf (the shelf with its EMU connected to the VT100 or PC, either
directly or by modem).
The Ethernet Address parameter is read-only and cannot be changed by the user. When changes are made
to the network parameters, the EMU console will prompt to reset to apply the changes.
Consult your network administrator to obtain the required IP addresses.
Configure Network Parameters for Multishelf TAO and SNMP
To configure the EMU-830 for Multishelf TAO and basic SNMP operation (if used) over Ethernet LAN:
Step
Action
1
2
Enter values for the Local IP Address, Local IP Subnet Mask, and, if the management station and EMU
are on different subnets, the Default Gateway IP Address (see Table 3-5 on page 3-10). Ensure that you
use values to place all shelves in the multishelf TAO on the same subnet.
3
In the SNMP Parameters menu (Figure 3-6 on page 3-11), configure at least one trap receiver (ignore this
step if you are not using SNMP). Enter the appropriate values for the Trap (management station) IP
Address and Trap Community string, then toggle the Trap Validation field to Valid (see Table 3-6 on page
3-12).
4
5
Press ENTER to confirm all network settings.
Follow the EMU console prompt to reset the EMU.
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Chapter 3: Provisioning
Configure SNMP Operation Over SLIP
To configure the EMU-830 for basic SNMP operation over SLIP:
Step
Action
1
2
3
4
5
Enter the Local SLIP Subnet Mask.
Use the SPACEBAR to select the SLIP Port Baud Rate.
Press ENTER to confirm all network settings.
Follow the EMU console prompt to reset the EMU.
Configure EMU Autoconfiguration through BOOTP
Step
Action
1
2
3
4
5
In the Network Parameters menu, enter the BOOTP Server IP Address.
Enter the BOOTP Gateway IP Address.
Toggle the Boot Mode from NVRAM to Network.
Press ENTER to confirm all network settings.
Follow the EMU console prompt to reset the EMU.
Table 3-5. Network Parameters
Option
Function
Ethernet Address
Reflects the hardware Ethernet (MAC) address for
the EMU-830. This field cannot be changed.
Ethernet Connection
Local IP Address
The Ethernet connection type is 10BASE-T. This
field cannot be changed.
Must be configured for the EMU-830 Ethernet port to
respond to the local management station.
192.168.0.1 is the default setting using Telnet or
SNMP.
Local IP Subnet Mask
Allows the EMU-830 to determine if a host (TFTP
server, SNMP management station, or trap receiver)
is on the same local subnet. If it is, the EMU-830 can
communicate directly with the host; if it is not,
messages must be sent through a default router.
255.255.255.0 is the default setting
Default Gateway IP
Address
Enter the IP address of the default gateway the
EMU-830 will use if the EMU-830 and the host are
not on the same network. 0.0.0.0 is the default
setting.
Local SLIP IP Address
Must be configured for the EMU-830 SLIP port to
respond to the local management station. 0.0.0.0 is
the default setting, which means SLIP port is not
used.
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Option
Function
Local SLIP Subnet Mask Allows the EMU-830 to determine if a host (TFTP
server, SNMP management station, or trap receiver)
is on the same local subnet. If it is, the EMU-830 can
communicate directly with the host; if it is not,
messages must be sent through a default router.
0.0.0.0 is the default setting.
SLIP Port Baud Rate
Select the SLIP Port baud rate by toggling to the
desired rate (maximum 19200 bps).
BOOTP Server IP
Address
Enter the IP address for the BOOTP server to which
the EMU-830 is connected. 0.0.0.0 is the default
setting. This information is only required if using the
BOOTP protocol.
BOOTP Gateway IP
Address
Enter the IP address for the gateway for the BOOTP
server. 0.0.0.0 is the default setting. This information
is only required if using the BOOTP protocol and the
BOOTP server is connected through a gateway.
Boot Mode
Select the Boot Mode by toggling between NVRAM
(the default) or NETWORK. BootP/TFTP Server can
be used for uploading software using the Network.
SNMP Parameters Menu
In the Config menu, press S to display the SNMP Parameters menu (Figure 3-6). This menu is used to configure the
EMU-830 for operation with SNMP (ignore this section if you are not using SNMP). The SNMP Parameters menu
Figure 3-6. SNMP Parameters Menu
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Configure SNMP Community Strings
The community string parameters are required to read and write SNMP objects.
In the SNMP Parameters menu (Figure 3-6 on page 3-11), configure the Read-only and Read-Write Community
Configure SNMP Trap Receivers
The SNMP Parameters menu allows you to configure up to three SNMP trap receivers (management stations) to
which all EMU-830 trap messages will be sent.
To configure an SNMP trap receiver:
Step
Action
Enter the Trap 1 Community String.
1
2
3
4
Toggle the Trap 1 Validation field to Valid.
Repeat steps 1 through 3 for each trap receiver to be configured.
Configure System Identification
Three options are provided at the bottom of the SNMP Parameters menu to identify each system and the system
The System Location is the physical location of the system (such as, Building 1, Corporate Office, Main Street, etc.).
System Name is the name you assign to the system (such as, Net 3, CircuitMon, Shelfwatch, etc.). System Contact
is the name, title and/or phone number of the person to contact at the system location.
To configure system identification:
Step
Action
1
maximum).
2
3
In the System Name field, enter a name for the system (32 characters maximum).
In the System Contact field, enter the name, title, and/or phone number of the person to contact at the
system location (32 characters maximum).
4
Press ENTER to confirm settings and return to the top of the Config menu.
Table 3-6. SNMP Parameters Menu
Option
Function
Read-only Community
String
Enter a community string. SNMP uses the
community string for set and get requests. To read
an SNMP object, the community string settings on
both ends of the system must match.
Read-write Community
String
Enter a community string. SNMP uses the
community string for set and get requests. To write
an SNMP object, the community string settings on
both ends of the system must match.
Trap 1 IP Address
Enter the IP address to which the trap is sent. 0.0.0.0
is the default setting.
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Option
Function
Trap 1 Community String Enter a community string. It must match the SNMP
Comm Name string for traps. SNMP uses the
community string for set and get requests.
Trap 1 Validation
Trap 2 IP Address
Select the trap status by toggling between Valid (the
default) or Invalid. Valid enables the trap, invalid
disables it.
Enter the IP address to which the trap is sent. 0.0.0.0
is the default setting.
Trap 2 Community String Enter a community string. It must match the SNMP
Comm Name string for traps. SNMP uses the
community string for set and get requests.
Trap 2 Validation
Trap 3 IP Address
Select the trap status by toggling between Valid (the
default) or Invalid. Valid enables the trap, invalid
disables it.
Enter the IP address to which the trap is sent. 0.0.0.0
is the default setting.
Trap 3 Community String Enter a community string. It must match the SNMP
Comm Name string for traps. SNMP uses the
community string for set and get requests.
Trap 3 Validation
System Location
Select the trap status by toggling between Valid (the
default) or Invalid. Valid enables the trap, invalid
disables it.
Field where you enter the physical location of the
system.
System Name
Field where you assign a name to the system.
System Contact
Field where you list the name, title, or phone number
of the system operator or administrator.
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Modem Parameters (Configure and Test Dial-out Alarm Reporting)
In the Config menu, press M to display the Modem Parameters menu (Figure 3-7). This menu is used to configure
the EMUs modem parameters for autonomous dial-out reporting of alarms to a remote management station or
printer.
Figure 3-7. Modem Parameters Menu
Step
Action
1
Navigate the menu using the Ç and È arrow keys on the keyboard.
2
Use the SPACEBAR to toggle the Data Bits field to "7" or "8" (to match modem at remote management
station).
3
Toggle the Parity Bit field to "NONE," "ODD," or "EVEN" (to match modem at remote management
station).
4
5
6
Toggle the Stop Bit field to "1" or "2" (to match modem at remote management station).
Toggle the Baud Rate field to the appropriate setting (to match modem at remote management station).
In the Phone Number field, enter the phone number of the modem at the remote management station.
Note: The Phone Number field must be preceded by "atdt" for tone dialing or "atdp" for pulse
dialing.
The Init String field displays "ATE1Q0." This is the default Hayes compatible modem
initialization string. If you need to change this initialization string, consult your modem user
7
Press ENTER to confirm settings and return to the top of the Config menu.
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Step
Action
8
Test the EMU’s dial-out alarm reporting as follows:
b. If necessary, select the Remote Alarm Reporting menu item and press ENTER to change the set-
IMPORTANT
The following steps require that you momentarily disconnect an DSL Tip or Ring lead
and then a G.703 interface cable to test remote alarm reporting. Take steps to ensure
that a customer’s service is not interrupted.
!
Note: The following alarm reporting screens are examples and do not represent the alarms
displayed in all tests.
c. Disconnect and re-connect an DSL Tip or Ring lead from a shelf. The shelf modem dials the man-
agement station, which displays the following alarms on its monitor:
(LOSW*) followed by a loss of sync word on Loop 1 only (LOSW1) and Loop 2 returning to normal
operation (that is, nothing displayed for Loop 2).
d. Disconnect and re-connect a G.703 interface cable from a shelf. The shelf modem dials the man-
agement station, which displays the following alarms on its monitor:
feed open (PFO*), and loss of sync word (LOSW*) occurred on both loops.
Figure 3-8. LOSW* and LOSW1 Alarm Reporting Screen
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Figure 3-9. LOS*, PFO* and LOSW* Alarm Reporting Screen
Shelf Alarms Menu
In the Config menu, press H to display the Shelf Alarms menu (Figure 3-10). This menu allows you to enable,
disable, and set the severity of the loss of shelf power, HDSL/G.SHDSL lines down, and loss of external clock alarm.
The Config menu also allows you to configure how each of the alarm relays respond to an ACO (Alarm Cut-Off). The
ACO can be activated from the EMU-830 front panel pushbutton or by connecting to ground the EXT (external) ACO
pin on the EMS-83x shelf's alarm connector. Selecting Enable (ENA) causes the associated alarm relay to be retired
(common contact connected to normally closed contact) when an ACO is received.
Figure 3-10. Shelf Alarms Menu
Note: To select the Shelf Alarms menu for a different shelf, press ESC and then Q to return to the Network
screen, select a shelf with the Ç and È arrow keys, and press L to open the Main menu screen for that
shelf. Press C and then H to display the Shelf Alarms menu for the selected shelf.
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To configure the shelf alarms:
Step
Action
Navigate the menu using the Ç and È arrow keys on the keyboard.
1
2
3
4
5
6
In the Loss of power on one 48V supply field, use the SPACEBAR to select DIS (disabled), MIN
(minimum), MAJ (major), or CRT (critical).
In the HDSL alarm if 3 lines down field, use the SPACEBAR to select DIS (disabled), MIN (minimum),
MAJ (major), or CRT (critical).
In the Loss of External Clock field (on EMU-830 List 6A only), use the SPACEBAR to select DIS
(disabled), MIN (minimum), MAJ (major), or CRT (critical).
In the ACO Retirement of Alarm Relays field, use the SPACEBAR to select DIS (disabled) or ENA
(enabled) for the Audible and Visual fields of the Critical, Major, and Minor alarm relays.
Press ENTER to confirm settings and return to the top of the Config menu.
Remote Alarm Reporting
This Config menu option (Figure 3-11) must be enabled when your system is configured for autonomous dial-out
reporting of alarms to a remote management station or printer. If necessary, select the Remote Alarm Reporting
menu item and press ENTER to change the setting from disabled (Dis) to enabled (Ena).
Figure 3-11. Remote Alarm Reporting Menu Item
Set Date and Time
Use the Æ arrow key to select Config, then press D to display the Set Date/Time dialog box (Figure 3-12 on page
3-18). This dialog box allows you to enter the current Date and Time so the displayed alarm reporting information is
correct.
The Date format is DD/MM/YYYY (day/month/year). The Time format is HH:MM:SS (hour:minute:second) and
displays as a 24-hour clock (01:00:00 through 24:59:59).
Note: Setting the EMU’s date and time automatically sets the date and time for all HDSL/G.SHDSL cards
in the shelf.
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To set the date and time:
Step
Action
1
Use the Ç and È arrow keys to select the DD/MM/YYYY and HH:MM:SS fields. Enter the current date
and time in the respective fields.
2
Press ENTER to confirm settings and return to the top of the Config menu.
Figure 3-12. Set Date/Time Dialog Box
Change Password
In the Config menu, press P to display the Change Password dialog box (Figure 3-13 on page 3-19). This dialog box
is used to select or change your password. You can use the letters A through Z (case sensitive), numbers 0 through
9, spaces, and any keyboard symbol.
To select or change your password:
Step
Action
1
Do one of the following:
a. If you do not have a password, press ENTER.
b. Type your old password and press ENTER.
2
3
When the second password screen is displayed, type the new password (20 characters maximum), then
press ENTER.
When the next password screen appears, re-enter the new password (exactly as originally entered), then
press ENTER.
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Figure 3-13. Change Password Dialog Box
Set Shelf ID
In the Config menu, press I to display the Set Shelf ID dialog box (Figure 3-14 on page 3-19). This dialog box allows
you to enter the shelf ID for each management unit. You can use the letters A through Z (case sensitive), numbers 0
through 9, spaces, and any symbol.
Figure 3-14. Set Shelf ID Dialog Box
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To set the shelf ID:
Step
Action
1
2
3
In the Enter Shelf ID field, type the Shelf ID (32 characters maximum) and press ENTER.
Press any key to return to the top of the Config menu.
Terminal Settings
In the Config menu, press T to display the Terminal Settings menu (Figure 3-15). This menu is used to specify a
terminal setting that displays the best horizontal and vertical lines on your monitor.
Figure 3-15. Terminal Settings Menu
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To specify a terminal setting, do one of the following:
Step
Action
1
If you are not using a Windows terminal, select a menu item with the best horizontal line, then press
ENTER. For example, "_ _ _ _ _" versus "________", where "________" is the best.
2
If you are using a Windows terminal, select the Windows Terminal menu item, then press ENTER.
Set to Factory Defaults
In the Config menu, press F to display the "restore to factory defaults" warning prompt (Figure 3-16).
Figure 3-16. Restore To Factory Defaults Warning Prompt
IMPORTANT
Pressing Y in this screen resets the EMU-830 to factory default settings, which erases any special
configuration settings you have specified.
!
Note: Resetting the EMU to factory defaults will reset the EMU and log you off from the EMU console menu
and requires that you log on again on to regain access. All alarm reporting information is lost.
Do one of the following:
• Press Y (yes) to reset the EMU to factory default settings (then log on to the EMU console menu if you wish to
make configuration changes).
• Press N (no) to retain your special configuration settings.
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Reset EMU
Figure 3-17. Reset EMU Warning Prompt
IMPORTANT
If you reset the EMU-830, all alarm reporting information is lost.
!
Note: Resetting the EMU will log you off from the EMU console menu and requires that you log on again
on to regain access.
Do one of the following:
• Press Y (yes) to reset the EMU (then log on to the EMU console menu if you wish to make configuration
changes).
• Press N (no) to return to the Config menu.
Inventory Information Screen
Use the Æ arrow key to select Inventory, then press ENTER to display the Inventory Information screen (see Figure
3-18 on page 3-23). This is read-only screen providing information about the EMU-830. The data included in the
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Figure 3-18. Inventory Information Screen
Table 3-7. Data in Inventory Information Screen
Description
Field
Product Type
Displays the EMU model number.
List Number
Displays the EMU list number, which identifies the version of the unit.
Displays the EMU hardware revision number
Hardware Revision
Serial Number
Manufacture Date
Software Part Number
Checksum
Displays the unique serial number of the EMU for inventory and service tracking.
Displays the date the EMU was manufactured.
Displays the ADC part number of the firmware.
Displays the checksum of the EMU proms.
Software Revision
Software Date
Displays the currently installed firmware version level of the EMU.
Displays the date that the firmware was released.
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MANAGING FIRMWARE THROUGH THE UPLOAD MENU
The Upload menu provides the mechanism to upload image files to local or remote line units or EMUs.
Upload to a Local or Remote Line Unit
To upad to a local or remote line unit:
Step
Action
1
If viewing the Main menu screen (Figure 3-3 on page 3-5), press ESC and type Q to return to the Network
2
In the Network screen, use the Ç and È arrow keys to select the local shelf or a remote shelf.
Note: The shelf with the ">" symbol (for example, >Shelf #28) is the local shelf connected to the
management station PC. Other shelves (without the > symbol) are remote shelves connected to
the local shelf through Ethernet.
3
4
From the Upload menu, select Upload Line Unit. The Upload to Line Unit dialog box is displayed (Figure
5
6
In the Enter Line Unit: field, type the slot number of the line unit to be uploaded.
Use the Ç and È arrow keys to select the Line Unit Type field, press the SPACEBAR to select the line
7
When you are ready to upload to the line unit, press ENTER. The Xmodem transfer message is displayed
8
9
Go to the new firmware file (for example, sys.img).
From the Terminal utility Settings menu, select Binary Transfers, then select XMODEM.
From the Terminal utility Transfers menu, select Send Binary File (do not select Send Text File).
Enter the file path and name, then click OK to begin the upload to the local or remote line unit:
10
11
If uploading to a line unit on a remote shelf, the TAO Multishelf message is displayed, followed by the
Remote line unit uploading message.
If uploading to a line unit on a local shelf, the Local line unit uploading message is displayed (Figure 3-22
Do not abort the download procedure when an XModem transfer is in progress.
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Figure 3-19. Upload Line Unit Menu Item
Figure 3-20. Upload to Line Unit Dialog Box
Table 3-8. Line Unit Uploads
Line Unit Type
Local
Local Unit
Target Unit
LTU/STU-C or Local LTU/STU-C or
NTU/STU-R
LTU/STU-C
NTU/STU-R
LTU/STU-C
NTU/STU-R
NTU/STU-R
LTU/STU-C
LTU/STU-C
NTU/STU-R
NTU/STU-R
REG1/Loop 1
Local LTU/STU-C
Remote LTU/STU-C
Remote NTU/STU-R
Local NTU/STU-R
LTU/STU-C or Regenerator #1
NTU/STU-R
REG2/Loop 1
LTU/STU-C or Regenerator #2
NTU/STU-R
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Upload Local EMU
To upload to the local EMU:
Note: If using the Xmodem protocol to upload the local EMU directly from your management station, copy
the firmware file to your management station hard disk before proceeding. This greatly reduces the time
required for the upload process.
Step
Action
1
In the Network screen (Figure 3-2 on page 3-4), select the local shelf. That is, the shelf with the ">"
symbol. For example, >Shelf # 28.
2
3
From the Upload menu, select Upload EMU. The Upload to Local EMU dialog box is displayed
4
5
Press the SPACEBAR to select Xmodem or TFTP file transfers. (Select TFTP if uploading the local EMU
from a TFTP server through Ethernet LAN; select Xmodem if uploading the local EMU from your
management station through a cable connected to the local EMU console port.)
Do one of the following:
a. If using TFTP Server:
1. Enter the server's IP address and the upload file name (for example, sys.img).
3. Press Y to upload the local EMU.
b. If using Xmodem:
IMPORTANT
Be sure that the firmware file has been copied to hard disk or that the CD-ROM
with the file is available and ready for use. Xmodem erases the EMU flash
memory upon execution of step 2 below and thereafter must receive the image
file upload to resume normal EMU operation.
!
3. If uploading from CD-ROM, insert the CD-ROM into your management station's
CD-ROM drive.
4. From the Terminal utility Settings menu, select Binary Transfers, then select XMODEM.
5. From the Terminal utilities Transfers menu, select Send Binary File (do not select Send
Text File).
6. Enter the file path and name, then click OK to begin the upload.
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Chapter 3: Provisioning
Figure 3-27. Boot Loader Prompt
Upload Remote EMU
After uploading the local EMU, its firmware image can be uploaded to the remote EMUs (the use of files is not
required). To upload to a remote EMU:
Step
Action
1
In the Network screen (Figure 3-2 on page 3-4), select a remote shelf. That is, a shelf without the ">"
symbol. For example, Shelf # 27.
2
3
4
5
Figure 3-28. Remote Upload EMU Dialog
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A
Appendix
SPECIFICATIONS
ALARMS
Relays
6 form C relays: critical visual, critical audible, major visual, major
audible, minor visual, minor audible.
Maximum switching power
Maximum switching current
Surge voltage withstand
Shelf alarms
30 W
1 A
1500 V
Power input failure, programmable number of HDSL loops in the shelf
are down, loss of external clock (EMU-830 List 6A only)
LEDs
Critical, Major, Minor alarm
POWER REQUIREMENTS
Consumption
7.5 W
ENVIRONMENTAL
Operating Temperature
0 °C to +50 °C
Humidity
Up to 95% non condensing
REGULATORY APPROVALS
Safety
EN 60950
EMC/EMI
EN300 386-2
COMPATIBILITY
The EMU-830 is compatible with HDSL, G.SHDLS cards, desktop units, doublers (regenerators), and exchange
office management shelves in the WorldDSL product line. Universal Termination Units (UTUs) can be configured as
LTUs or NTUs. WD92xGx can be configured as STU-Cs or STU-Rs. Typically the LTU/STU-C DSL cards are
installed in the management shelf and the NTU/STU-R DSL cards are deployed at the remote site. You can,
however, use either an LTU/STU-C or NTU/STU-R DSL card in a shelf as the EMU-830 allows terminal access to
both types of DSL cards when installed in a shelf. Alarm management, however, is only performed on LTU/STU-C
cards and their attached circuit elements.
The following is an abbreviated list of EMU-compatible WorldDSL products.
• Shelves: All EMS-83x List 2
• HDSL Cards: All LTU-80x List x, UTU-80x Lx
• Universal Termination Units: All UTU-9xx
• Integrated Desktop Units: All ETU-8xx and ETU-9xx
• Doublers (regenerators): All EDU-840 List x
• G.SHDSL Cards: WD92xGx line cards
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B
Appendix
PRODUCT SUPPORT
ADC Customer Service Group provides expert pre-sales support and training for all of its products. Technical
support is available 24 hours a day, 7 days a week by contacting the ADC Technical Assistance Center.
Sales Assistance: 800.366.3891
Systems Integration: 800.366.3891
Quotation Proposals, Ordering and Delivery General,
and Product Information
Complete Solutions (from concept to installation),
Network Design and Integration Testing, System Turn-
Up and Testing, Network Monitoring (upstream or
downstream), Power Monitoring and Remote
Surveillance, Service/Maintenance Agreements, and
Systems Operation
ADC Technical Assistance Center:
800.366.3891
Technical Information, System/Network Configuration,
Product Specification and Application, Training
(product-specific), Installation and Operation
Assistance, and Troubleshooting and Repair/Field
Assistance
Email: [email protected]
Online Technical Support:
Online Technical Publications:
technicalpublications/
Product Return Department: 800.366.3891
Email: [email protected]
ADC Return Material Authorization (RMA) number and
instructions must be obtained before returning products.
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GLOSSARY
A
AIS – Alarm Indication Signal
ALM – Alarm
ANSI – American National Standards Institute
AWG – American Wire Gage
B
BER – Bit Error Rate
C
C – Centigrade
COM – Communication
CRC – Cyclic Redundancy Check
CTS – Clear To Send
D
D15F – D-type 15-pin Female Connector
D25F – D-type 25-pin Female Connector
D9F – D-type 9-pin Female Connector
dB – Decibel
DCE – Data Communications Equipment
Det – Detector
dnl – Download
DS0 – Digital Service, Level 0 (64 kbps)
DSR – Data Set Ready
DTE – Data Terminal Equipment
DTR – Data Terminal Ready
E
EMC – Electromagnetic Compliance
EMI – Electromagnetic Interference
EMS – Exchange Office Management Shelf
EMU – Exchange Office Management Unit
ES – Errored Second
ETR – ETSI Technical Report
ETSI – European Telecommunications Standards Institute
ETU – ETSI Termination Unit
EXT – External G.SHDSL Clock
H
H/W – Hardware
HDSL – High-bit-rate Digital Subscriber Line
Hz – Hertz
I/F – Interface
ID – Identification
INT – Internal
GL-1
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K
kbps – kilobytes per second
km – kilometers
L
LED – Light Emitting Diode
LL – Local Loopback
LDC – Loss of Data Port (Nx64k) Clock
LEC – Loss of External Clock
LOC – Loss of Clock
LOSW – Loss of Sync Word
LPBK – Loopback
LTU – Line Termination Unit
M
M34F – M-type 34-pin Female Connector
MAR – Margin
Mbps – Megabits per second
MHz – Megahertz
mm – millimeter
N
NC – Normally Closed
NO – Normally Open
NTU – Network Termination Unit
NVRAM – Non-volatile Random Access Memory
Nx64k – Number (N) of 64 kbps DS0 time slots mapped to a data port.
O
Op – Operation
PFO – Power Feed Open
PFS – Power Feed Short
ppm – pulse per minute
PRBS – Pseudorandom Bit Sequence
R
RAM – Random Access Memory
REM – Remote
RL – Remote Loopback
RLSD – Received Line Signal Detector
RTS – Ready to Send
S
SD – Transmit Data
SLIP – Serial Line Internet Protocol
ST – Send Timing
STU-C – SHDSL Terminating Unit for the CO
STU-R – SHDSL Terminating Unit for the RT
S/W – Software
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T
TM – Test Mode
TT – Terminal Timing
U
UAS – Unavailable Seconds
UTU – Universal Termination Unit
V
V – Volts
Vdc – Volts direct current
VT100 – A terminal-emulation system
W
W – Watts
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Certification and Warranty
FCC Class A Compliance
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful inter-
ference to radio communications. Operation of this equipment in a residential area is likely to cause harmful inter-
ference in which case the user will be required to correct the interference at his own expense.
Limited Warranty
Product warranty is determined by your service agreement. Refer to the ADC Warranty/Software Handbook for
additional information, or contact your sales representative or Customer Service for details.
Modifications
The FCC requires the user to be notified that any changes or modifications made to this device that are not
expressly approved by ADC voids the user’s warranty.
All wiring external to the products should follow the provisions of the current edition of the National Electrical Code.
Safety Standards Compliance
This equipment has been tested and verified to comply with the applicable sections of the following safety stan-
dards:
• GR 63-CORE - Network Equipment-Building System (NEBS) Requirements
• GR 1089-CORE - Electromagnetic Compatibility and Electrical Safety
• Binational Standard, UL-60950 3rd Edition/CSA1459 C22.2 No. 60950-00: Safety of Information Technology
Equipment
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World Headquarters
ADC Telecommunications, Inc.
PO Box 1101
Minneapolis, MN 55440-1101 USA
For Technical Assistance
Tel: 800.366.3891
Document Number: LTPE-UM-3159-02
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1381662
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