SocketModem® Cell EV-DO
SocketModem® iCell EV-DO
MTSMC-EV3 Device Guide
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CONTENTS
Contents
Chapter 1 – Device Overview......................................................................................................................................5
Description.......................................................................................................................................................................... 5
Chapter 2 – Mechanical Drawing ................................................................................................................................7
Chapter 3 – Specifications ..........................................................................................................................................8
RS-232 Signal DC Electrical Characteristics .......................................................................................................................10
Absolute Maximum Rating ...........................................................................................................................................10
Electrical Characteristics Other Pins .................................................................................................................................10
Pinout Specifications.........................................................................................................................................................11
Pin 58.................................................................................................................................................................................11
Pin Availability by Build.....................................................................................................................................................12
Power Measurements.......................................................................................................................................................13
MTSMC-EV3 ..................................................................................................................................................................13
MTSMC-EV3-U ..............................................................................................................................................................14
MTSMC-EV3-MI-IP ........................................................................................................................................................15
MTSMC-EV3-MI-GP.......................................................................................................................................................16
Chapter 4 – FCC and Industry Canada Information ....................................................................................................18
FCC Grant Part 22 and 24..................................................................................................................................................18
Industry Canada ................................................................................................................................................................19
Chapter 5 – Carrier Specific Information ...................................................................................................................20
Notice for Devices that Use Aeris Radios..........................................................................................................................20
Chapter 6 – Application Notes..................................................................................................................................21
LED Interface.....................................................................................................................................................................21
LED 1 – Heartbeat – IP and –GP Builds Only.................................................................................................................21
LED 2 – Link Status – All Builds......................................................................................................................................21
LED 3 – Signal Strength –IP and –GP Builds Only..........................................................................................................21
LED 4 – GPS Status – GP Builds .....................................................................................................................................21
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CONTENTS
RF Performances ...............................................................................................................................................................22
Receiver Features..........................................................................................................................................................22
Transmitter Features ....................................................................................................................................................22
RF Connection and Antenna .........................................................................................................................................22
Frequency Bands...............................................................................................................................................................23
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CHAPTER 1 –DEVICE OVERVIEW
Chapter 1 – Device Overview
Description
The SocketModem iCell intelligent cellular modem is a complete, ready-to-integrate communications device that
offers standards-based dual-band EV-DO Rev A performance. This quick-to-market communications device allows
developers to add wireless communication and GPS tracking to products with a minimum of development time
and expense. The intelligence of the embedded Universal IP® stack allows for automatic/persistent connectivity
for mission critical applications and enhanced M2M functionality. The SocketModem iCell intelligent cellular
modem is based on industry-standard open interfaces and uses Multi-Tech's Universal Socket design.
Product Build Options
Product
Description
Region
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
MTSMC-EV3-MI-GP-N3 EV-DO Rev A, Serial, USB, GPIO, Universal IP, GPS, Verizon
MTSMC-EV3-MI-GP-N16 EV-DO Rev A, Serial, USB, GPIO, Universal IP, GPS, Aeris
MTSMC-EV3-MI-IP-N3
EV-DO Rev A, Serial, USB, GPIO, Universal IP, Verizon
MTSMC-EV3-MI-IP-N16 EV-DO Rev A, Serial, USB, GPIO, Universal IP, Aeris
MTSMC-EV3-GP-N3
MTSMC-EV3-GP-N16
MTSMC-EV3-IP-N3
MTSMC-EV3-IP-N16
MTSMC-EV3-N3
MTSMC-EV3-N16
MTSMC-EV3-U-N3
MTSMC-EV3-U-N16
Developer Kit
EV-DO Rev A, Serial, Universal IP, GPS, Verizon
EV-DO Rev A, Serial, Universal IP, GPS, Aeris
EV-DO Rev A, Serial, Universal IP, Verizon
EV-DO Rev A, Serial, Universal IP, Aeris
EV-DO Rev A, Serial, Verizon
EV-DO Rev A, Serial, Aeris
EV-DO Rev A, USB, Verizon
EV-DO Rev A, USB, Aeris
MTSMI-UDK
Universal Developer Kit
Global
Notes:
These units ship without network activation. To connect them to the cellular network, you need a cellular
account. Refer to Multi-Tech’s Cellular Activation site http://www.multitech.com/activation.go for step-by-
step instructions on activating your cellular modem.
GP devices have a dedicated GPS receiver.
MI devices have multiple interfaces.
The complete product code may end in .Rx. For example, MTSMC-EV3.Rx, where R is revision and x is the
revision number.
All builds can be ordered individually or in 50-packs.
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CHAPTER 1 – DEVICE OVERVIEW
Documentation
The following documentation is available by email to [email protected] or by using the Developer Guide
Request Form on the multitech.com
Device Guides – This document. Provides model-specific specifications and developer information.
Universal Socket Developer Guide – Provides an overview, safety and regulatory information, design
considerations, schematics, and general device information. (S000342)
USB Driver Installation Guide – Provides steps for installing EV-DO/CDMA USB drivers. (S000569)
AT Command Guide – Use the following AT Command Guides with EV-DO devices:
S000546 for EV-DO and CDMA Modems
S000457 Universal IP Commands
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CHAPTER 3 – SPECIFICATIONS
Chapter 3 – Specifications
Technical Specifications
Category
Description
General
Standards
CDMA2000 1xRTT
EV-DO Rev. A (backward compatible to EV-DO Rev. 0 and CDMA 1x networks)
SMS is based on CS/Packet-Switched (PS) domain of GSM and WCDMA
Dual-band 800/1900 MHz bands with receive diversity support on both bands
Frequency Bands
Speed
Data Speed
Interface, Ports
USB Interface
Up to 3.1 Mbps downlink/1.8 Mbps uplink
MI builds: USB 2.0 full speed
High speed on other builds: 480 Mbps
Serial Modem Interface Up to 921.6 Kbps
Ports
GPIO ports – MI builds only
Physical Description
Weight
1 oz. (28g)
Dimensions
Connectors
3.15" x 1.375" (80.010 mm x 34.925 mm)
Antenna Connector
Environment
3 surface mount UFL: cellular, GPS, RX diversity
Operating Temperature -40° C to +85° C
Storage Temperature
-40° C to +85° C
Humidity
20%-90% RH, non-condensing
Power Requirements
Operating Voltage
Input Power
3.3V-5V
5 or 3.3 VDC
IP, M2M, SMS
Supported IP Protocols DNS resolve, FTP client, Ping, POP3 client, PPP (dialout), SMTP client, TCP RAW client &
server
M2M Applications
iCell models: Automatic connect/reconnect, device monitor, modem emulation, Ping &
TCP keep alive, wake-up on caller ID, wake-up on ring, GPS tracking (GP model only)
Point-to-Point messaging
SMS
Mobile-Terminated SMS
Mobile-Originated SMS
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CHAPTER 3 – SPECIFICATIONS
Category
Description
Certifications, Compliance
EMC Compliance
FCC Part 15 Class B
EN55022 Class B
EN55024
Radio Compliance
FCC Part 22
FCC Part 24
RSS 132
RSS 133
EN 301 511
EN 301 489-1
EN 301 489-7
EN 301 489-24
UL 60950-1
cUL 60950-1
EN 60590-1
Verizon, Aeris
Safety Compliance
Network Compliance
Notes: Radio performance may be affected by temperature extremes. This is normal.
Mounting Hardware
The board has three mounting holes at corners. Use #4 or M3 hardware for mounting the SocketModem to the
board. Refer to the Mechanical Drawings for more information.
Recommended Parts
Manufacturer
Part
Part Number
PEM PennEngineering
RAF Electronic Hardware
RAF Electronic Hardware
Surface Mount Standoff
3/16” Hex Female Standoff
4.5mm Hex Female Standoff
SMTSO-M3-4ET
2051T-440-S-12 Zinc
1251-3005-S-12 Zinc
Device Reset
The SocketModem is ready to accept commands after a fixed amount of time (“X” Time) after power-on or reset.
Model
"X" Time
Minimum Reset Pulse1
MTSMC-EV3
10 seconds
200 us
1The SocketModem may respond to a shorter reset pulse.
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CHAPTER 3 – SPECIFICATIONS
RS-232 Signal DC Electrical Characteristics
Units: Volts
Applies to the following pins:
Pin Signal Name Pin
Signal Name
-DSR
-CTS
-DCD
-DTR
J33 -RTS
J34 -RXD
J35 -TXD
J36 -RI
J37
J38
J39
J40
Parameter
Minimum
Maximum
3.3 Volt Powered
Input Low Level
Input High Level
Output Low Level
Output High Level
5 Volt Powered
0
1.5
0
0.55
3.3
0.55
3.3
2.35
Input Low Level
Input High Level
Output Low Level
Output High Level
0
2.3
0
0.8
5
0.55
5
3.7
Absolute Maximum Rating
All models can run with an input voltage of either 3.3V or 5V. The maximum voltage on any signal pin equals the
input voltage.
Electrical Characteristics Other Pins
Pin
Signal Name
VIL
Max Min
0.8 2.0
VIH
VOL
Max Min
VOH
Max
Min
Max Min
J24
J25
J26
J27
J28
J41
-RESET
USB VBUS
GND
USB DP
USB DM
GND
--
--
--
--
--
--
-0.3
--
0.8
--
2.0
--
8.7
--
--
--
--
--
--
--
0.8
0.8
--
2
2
--
0.3
0.3
--
2.8
2.8
--
--
--
--
--
J48
J49
GPIO0
GPIO1
-0.3
-0.3
0.8
0.8
2.0
2.0
5.5
5.5
0.4
0.4
2.9
2.9
J50
J51
J58
J61
J63
GPIO2
GPIO3
-LED LINK
VCC
-0.3
-0.3
--
--
--
0.8
0.8
--
--
--
2.0
2.0
--
--
--
5.5
5.5
--
--
--
0.4
0.4
2.9
2.9
0
--
--
0.45 2.85 3.3
--
--
--
--
--
--
GND
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CHAPTER 3 – SPECIFICATIONS
Pinout Specifications
Pin
J24
J25
J26
J27
J28
J33
J34
J35
J36
J37
J38
J39
J40
J41
J48
J49
J50
J51
J58
J61
J63
Signal Name
–RESET
USB VBUS
GND
USB DP
USB DN
–RTS
–RXD
–TXD
–RI
–DSR
–CTS
–DCD
–DTR
GND
GPIO0
GPIO1
GPIO2
GPIO3
–LED LINK
VCC
Logic Level Voltage1 I/O
Description
3.3 – 5.0
3.3 – 5.0
GND
3.3
3.3
5.0
I
I
Device reset (active low)
USB power supply input
Ground
USB data
USB data
GND
I/O
I/O
I
Request to send (active low)
Received data (active low)
Transmitted data (active low)
Ring indicator (active low)
Data set ready (active low)
Clear to send (active low)
Data carrier detect (active low)
Data terminal ready (active low)
Ground
User configurable general purpose I/O
User configurable general purpose I/O
User configurable general purpose I/O
User configurable general purpose I/O
Link status (active low, can sink up to 150mA)
DC input power
5.0
O
5.0
I
5.0
O
5.0
O
5.0
O
5.0
O
5.0
I
GND
3.3
3.3
3.3
3.3
GND
I/O
I/O
I/O
I/O
O
3.3
5.0
GND
PWR
GND
GND
Ground
1
A hyphen (-) indicates a range of acceptable logic levels.
Pin 58
Note: Pin 58 may or may not be available on some SocketModems.
Pin 58 LED Mode
OFF
Operating Status
Subscriber Carrier Mode is OFF or running in SLEEP or ALARM mode.
600 ms ON/600ms OFF No PIN entered, network search in progress, ongoing user authentication, or network
login in progress.
75 ms ON / 75 ms OFF / One or more EDGE/GPRS/CDMA contexts activated. Indicates EDGE/GPRS/CDMA data
75 ms ON
3 s OFF
transfer: When a transfer is in progress, the LED goes on within 1 second after data
packets were exchanged.
Flashing or Blinking
ON
Flash duration is approximately 0.5 s.
Depending on call type:
Voice Call:
Data Call:
Connected to remote party.
Connected to remote party or parameter exchange while call is set up or
disconnected.
11
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CHAPTER 3 – SPECIFICATIONS
Pin Availability by Build
Pin and Function MI-IP/GP
IP/GP
Serial only
USB only
J24 Reset
J25 USB_VBUS
J26 GND
J27 USB_DP
J28 USB_DN
J33 -RTS
J34 -RXD
J35 -TXD
J36 -RI
J37 -DSR
J38 -CTS
J39 -DCD
J40 -DTR
J41 GND
J48 GPIO
J49 GPIO
J50 GPIO
J51 GPIO
J58 -LED LINK
J61 VCC
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
J63 GND
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CHAPTER 3 – SPECIFICATIONS
Power Measurements
Multi-Tech Systems, Inc. recommends that you incorporate a 10% buffer into your power source when
determining product load.
MTSMC-EV3
AT command used to Sleep mode current
Time (sec) to reduce
Time (sec) to “ready
Radio Protocol
set radio function
and power mode
(Amps)
power from command for data
or DTE signal change connection” from
reduced power
3.3 Volts
US Cellular
AT+CFUN=5
AT+CFUN=5
AT+CFUN=5
0.046
N/A
1.0
N/A
1.0
1.0
N/A
1.0
PCS
EV-DO
5 Volts
0.023
US Cellular
PCS
AT+CFUN=5
AT+CFUN=5
AT+CFUN=5
0.049
N/A
1.0
N/A
1.0
1.0
N/A
1.0
EV-DO
0.022
AT
Radio
Protocol
Connection
No Data
(Amps)
Half Power
Output
Measured Power
Max Power
Output
Measured Power
command
used to set
radio
function and
power mode
Average
Ch Power Average
Ch Power
Meas.
(Avg)
Meas.
(Avg)
Current
(Amps)
Level
Current
(Amps)
Level
3.3 Volts
US Cellular
PCS
AT+CFUN=1 0.062
AT+CFUN=1 N/A
0.205
0.189
-13
-16
-60
-60
0.855
0.956
22
20
-97
-99
AT+CFUN=1 0.049
0.205
-25
-70
0.664
21
-96
EV-DO
5 Volts
AT+CFUN=1 0.053
AT+CFUN=1 N/A
AT+CFUN=1 0.034
0.143
0.134
0.141
-13
-16
-25
-60
-60
-70
0.53
21
21
21
-60
-60
-70
US Cellular
PCS
0.617
0.423
EV-DO
Note: This data is measured using an Agilent call box connected to the cellular radio.
13
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CHAPTER 3 – SPECIFICATIONS
Radio
Protocol
Instant Peak TX Total Inrush Charge
Current (Amps) measured in Coulombs duration during powerup).
Inrush Duration (Total Inrush Charge
3.3 Volts
US Cellular
PCS
0.956
1.084
0.744
17.70mC
17.70mC
17.70mC
1.90ms
1.90ms
1.90ms
EV-DO
5 Volts
US Cellular
PCS
0.608
0.696
0.496
17.77mC
17.77mC
17.77mC
1.74ms
1.74ms
1.74ms
EV-DO
Notes:
AT+CFUN=1 used to set radio function and power mode.
Instant Peak Tx: The peak current during a transmission burst period or connection. This current is handled by
bulk capacitance in a design.
Measured Current: The continuous current during a Transmit with the radio transmitter at specified power.
Inrush Charge: The total inrush charge current amplitude at power on.
MTSMC-EV3-U
AT
Radio
Protocol
Connection
No Data
(Amps)
Half Power
Output
Measured Power
Max Power
Output
Measured Power
command
used to set
radio
function and
power mode
Average
Ch Power Average
Ch Power
Meas.
(Avg)
Meas.
(Avg)
Current
(Amps)
Level
Current
(Amps)
Level
3.3 Volts
US Cellular
PCS
AT+CFUN=1 0.062
AT+CFUN=1 N/A
AT+CFUN=1 0.057
0.220
0.201
0.218
-13
-16
-26
-60
-60
-70
0.845
0.878
0.690
22.7
21
-96.2
-99.1
-96
23
EV-DO
5 Volts
AT+CFUN=1 0.056
AT+CFUN=1 N/A
AT+CFUN=1 0.043
0.146
0.133
0.145
-13
-16
-25
-60
-60
-70
0.521
0.541
0.436
22
22
22
-60
-99
-96
US Cellular
PCS
EV-DO
Note: This data is measured using an Agilent call box connected to the cellular radio.
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CHAPTER 3 – SPECIFICATIONS
Radio
Protocol
Instant Peak TX Total Inrush Charge
Inrush Duration (Total
Current (Amps) measured in Coulombs Inrush charge duration
during powerup).
3.3 Volts
US Cellular
PCS
0.920
0.936
0.768
18.23mC
18.23mC
18.23mC
1.91ms
1.91ms
1.91ms
EV-DO
5 Volts
US Cellular
PCS
0.604
0.624
0.508
17.90mC
17.90mC
17.90mC
1.82ms
1.82ms
1.82ms
EV-DO
Notes:
AT+CFUN=1 used to set radio function and power mode.
Instant Peak Tx: The peak current during a transmission burst period or connection. This current is handled by
bulk capacitance in a design.
Measured Current: The continuous current during a Transmit with the radio transmitter at specified power.
Inrush Charge: The total inrush charge current amplitude at power on.
MTSMC-EV3-MI-IP
AT command
Radio
Protocol
Connection
No Data
(Amps)
Half Power
Max Power
used to set
radio function
and power mode
Average Measured
Current (Amps)
Average Measured
Current (Amps)
3.3 Volts
US Cellular
PCS
AT+CFUN=1
AT+CFUN=1
AT+CFUN=1
0.140
N/A
0.302
0.285
0.304
0.890
1.041
0.818
0.124
EV-DO
5 Volts
AT+CFUN=1
AT+CFUN=1
AT+CFUN=1
0.090
N/A
0.190
0.180
0.187
0.580
0.616
0.485
US Cellular
PCS
0.083
EV-DO
Note: This data is measured using an Agilent call box connected to the cellular radio.
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CHAPTER 3 – SPECIFICATIONS
Radio
Protocol
Instant Peak TX Total Inrush Charge
Current (Amps) measured in Coulombs Inrush charge duration
Inrush Duration (Total
during powerup).
3.3 Volts
US Cellular
PCS
1.056
1.276
1.12
15.37mC
15.37mC
15.37mC
1.84ms
1.84ms
1.84ms
EV-DO
5 Volts
US Cellular
PCS
0.664
0.752
0.644
15.37mC
15.37mC
15.37mC
1.84ms
1.84ms
1.84ms
EV-DO
Notes:
AT+CFUN=1 used to set radio function and power mode.
Instant Peak Tx: The peak current during a transmission burst period or connection. This current is handled by
bulk capacitance in a design.
Measured Current: The continuous current during a Transmit with the radio transmitter at specified power.
Inrush Charge: The total inrush charge current amplitude at power on.
MTSMC-EV3-MI-GP
AT
command
used to set
radio
function and
power mode
Radio
Protocol
Connection
No Data
(Amps)
Half Power
Output
Measured Power
Max Power
Output
Measured Power
Average
Ch Power Average
Ch Power
Meas.
(Avg)
Meas.
(Avg)
Current
(Amps)
Level
Current
(Amps)
Level
3.3 Volts
AT+CFUN=1 0.270
0.412
0.395
0.414
-13
-16
-25
-60
-60
-70
1.000
1.151
0.928
22
20
21
-97
-99
-96
US Cellular
PCS
AT+CFUN=1 N/A
AT+CFUN=1 0.240
EV-DO
5 Volts
AT+CFUN=1 0.173
AT+CFUN=1 N/A
AT+CFUN=1 0.161
0.270
0.260
0.267
-13
-16
-25
-60
-60
-70
0.660
0.696
0.565
22
21
23
-95
-60
-70
US Cellular
PCS
EV-DO
Note: This data is measured using an Agilent call box connected to the cellular radio.
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CHAPTER 3 – SPECIFICATIONS
Radio
Protocol
Instant Peak TX Total Inrush Charge
Inrush Duration (Total
Current (Amps) measured in Coulombs Inrush charge duration
during powerup).
3.3 Volts
US Cellular
PCS
1.056
1.276
1.12
15.37mC
15.37mC
15.37mC
1.84ms
1.84ms
1.84ms
EV-DO
5 Volts
US Cellular
PCS
0.664
0.752
0.644
15.74mC
15.74mC
15.74mC
1.75ms
1.75ms
1.75ms
EV-DO
Notes:
AT+CFUN=1 used to set radio function and power mode.
Instant Peak Tx: The peak current during a transmission burst period or connection. This current is handled by
bulk capacitance in a design.
Measured Current: The continuous current during a Transmit with the radio transmitter at specified power.
Inrush Charge: The total inrush charge current amplitude at power on.
17
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CHAPTER 4 – FCC AND INDUSTRY CANADA INFORMATION
Chapter 4 – FCC and Industry Canada Information
The following is device specific FCC information. For additional approval and regulatory information, see the Universal
Socket Developer Guide.
FCC Grant Part 22 and 24
FCC Identifier
Equipment Class
Notes
FCC Rule Parts
Approval
RI7DE910-DUAL
PCS Licensed Transmitter
Dual Band CDMA/GPS module
22H, 24E
Single Modular
FCC Rule Parts Frequency Range (MHz) Output Watts
Frequency Tolerance Emission Designators
22H
24E
824.7 - 848.31
1851.25-1908.75
0.3
0.274
2.5 PM
2.5 PM
1M29F9W
1M29F9W
Power listed is conducted. The maximum antenna gain including cable loss for compliance with radiated power
limits, RF exposure requirements and the categorical exclusion requirements of 2.1091 is 5.12 dBi for part 22H and
6.12 dBi for part 24E. The antenna(s) used for this transmitter must be installed to provide a separation distance
of at least 20 cm from all persons and must not transmit simultaneously with any other antenna or transmitter.
This device is allowed only for OEM integration into host products. Consumer or end-user installation is not
allowed. End-users and OEM integrators must be provided with specific information required to satisfy RF
exposure compliance.
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CHAPTER 4 – FCC AND INDUSTRY CANADA INFORMATION
Industry Canada
Certification Number/No. de Certification
5131A-DE910Dual
1-03726
Certificate Number/Numéro de Certificat
Type of Radio Equipment/Genre de Matériel Cellular Mobile New Technologies (824-849MHz)
Model/Modele
DE910-DUAL
From Frequency/
De Fréquences
827.7
To Frequency/
Á Fréquences
848.31
Emission Designation/Genre
d’émission
1M28F9W
Power/Puisaance
(Watts)
0.298
1851.25
1908.75
1M29F9W
0.274
Certification of equipment means only that the equipment has met the requirements of the above noted
specification. License applications, where applicable to use certified equipment, are acted on accordingly by the
Industry Canada issuing office and will depend on the existing radio environment, service and location of
operation. This certificate is issued on condition that the holder complies and will continue to comply with the
requirements and procedures issued by Industry Canada. The equipment for which this certificate is issued shall
not be manufactured, imported distributed, leased, offered for sale or sold unless the equipment complies with
the applicable technical specifications and procedures issued by Industry Canada.
La certification du matériel signifie seulement que le matériel a satisfait aux exigences de la norme indiquée ci-
dessus. Les demandes de licences nécessaires pour l’utilisation du matériel certifié sont traitées en conséquence
par le bureau de délivrance d’Industrie Canada et dépendent des conditions radio ambiantes, du service et de
l’emplacement d’exploitation. Le présent certificat est délivré à la condition que le titulaire satisfasse et continue
de satisfaire aux exigences et aux procédures d’Industrie Canada. Le matériel à l’égard duquel le présent certificat
est délivré ne doit pas être fabriqué, importé, distribué, loué, mis en vente ou vendu à moins d’être conforme aux
procédures et aux spécifications techniques applicable publiées par Industrie Canada.
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CHAPTER 5 – CARRIER SPECIFIC INFORMATION
Chapter 5 – Carrier Specific Information
Notice for Devices that Use Aeris Radios
One component of your device is a radio. A radio algorithm prevents your device from repeatedly attempting to
connect to the network when the radio:
cannot establish a packet data connection or
fails to access the application server.
When writing applications for your devices, ensure that your applications do not interfere with the radio's
connection retry algorithm. If you fail to do so, Aeris might block network access for your devices.
After your devices reach the end of their commercial lifespan, you must remove them from the Aeris network. To
do so, remove power from the devices and remove their antennas. If your devices continue to attempt to register
with the network after you cancel device subscriptions, Aeris can bill you for any traffic generated by those
devices.
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CHAPTER 6 – APPLICATION NOTES
Chapter 6 – Application Notes
LED Interface
The LED signal indicates the SocketModem working status. Refer to the mechanical drawing for LED locations.
LED 1 – Heartbeat – IP and –GP Builds Only
LED 1 Signal Heartbeat LED
OFF
Blinking
No power to the unit.
Power on.
LED 2 – Link Status – All Builds
LED 2 Signal
OFF
Link Status LED
Device off.
ON
Continuously lit
During initial connection to tower or when connected and
passing data.
Slow blink (-0.2Hz)
Faster blink (-3Hz)
Registered to tower and idle.
Powered not registered/Searching for registration.
N
Note:
For non-IP builds, to ensure that the Link Status LED works properly, issue the following AT Command
sequence to the GPIO:
AT#GPIO=1,0,2
AT#SLED=2
LED 3 – Signal Strength –IP and –GP Builds Only
LED 1 Signal Heartbeat LED
OFF
No signal
Blinking
The faster the LED blinks, the stronger the signal. The blink rate range is -0.5Hz to -10Hz.
LED 4 – GPS Status – GP Builds
LED 4 Signal GPS Status LED
OFF
ON
No power to the unit.
Continuously lit
Blinking
Satellite not acquired.
Satellite acquired.
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CHAPTER 6 – APPLICATION NOTES
RF Performances
RF performances are compliant with the ETSI recommendation 05.05 and 11.10. The module’s radio transceiver
meets the requirements of 3GPP Release 5 & 6. All values indicated are conducted.
Receiver Features
Category
GSM 850 Sensitivity
E-GSM 900 Sensitivity
DCS 1800 Sensitivity
PCS 1900 Sensitivity
UMTS Band I 2100 Sensitivity
UMTS Band II 1900 Sensitivity
UMTS Band V 850 Sensitivity
UMTS Band VI 800 Sensitivity
Description
< -109 dBm
< -106 dBm
< -105 dBm
< -105 dBm
< -109 dBm
< -108 dBm
< -110 dBm
< -110 dBm
Transmitter Features
Category
Description
Maximum output power (GSM 850 / GSM 900)
+32 dBm ± 1 dBm GSMK mode (class 4)
+27 dBm ± 1 dBm 8PSK mode (class E2)
+29 dBm ± 1 dBm GSMK mode (class 1)
+26 dBm ± 1 dBm 8PSK mode (class E2)
+23 dBm ± 1 dBm (class 3)
Maximum output power (DCS 1800 / PCS 1900)
Maximum output power (UMTS Band II 1900, V 850, &VI 800)
Maximum output power (UMTS Band I 2100)
+23 dBm ± 1 dBm (class 3)
RF Connection and Antenna
The RF connector on the SocketModem is a UFL standard type. See the Universal Socket Developer Guide for
antenna details.
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CHAPTER 6 – APPLICATION NOTES
Frequency Bands
Mode
GSM850
EGSM900
Freq. TX (MHz)
824.2- 848.8
890.0 - 914.8
Freq. RX (MHz)
869.2 - 893.8
935.0 - 959.8
Channels
128 - 251
0 - 124
TX - RX offset
45 MHz
45 MHz
880.2 - 889.8
925.2 - 934.8
975 - 1023
45 MHz
DCS1800
PCS1900
1710.2 - 1784.8
1850.2 - 1909.8
826.4 - 846.6
1805.2 - 1879.8
1930.2 - 1989.8
871.4 - 891.6
512 - 885
512 - 810
95MHz
80MHz
45MHz
WCDMA850
(band V)
WCDMA900
(band VIII)
WCDMA1700
(band IV)
WCDMA1900
(band II)
WCDMA2100
(band I)
Tx: 4132 - 4233
Rx: 4357 - 4458
Tx: 2712 - 2863
Rx: 2937 - 3088
Tx: 1312 - 1513
Rx: 9662 - 9938
Tx: 9262 - 9538
Rx: 9662 - 9938
Tx: 9612 - 9888
Rx: 10562 - 10838
882.4 - 912.6
927.4 - 957.6
45MHz
400MHz
80MHz
190MHz
1710.4 - 1755.6
1852.4 - 1907.6
1922.4 - 1977.6
2112.4 - 2167.6
1932.4 - 1987.6
2112.4 - 2167.6
23
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