Multitech SocketModem Application guide

SocketModem® Cell CDMA
SocketModem
® iCell CDMA
MTSMC
-C2 Device Guide

COPYRIGHT AND TECHNICAL SUPPORT
SocketModem CDMA MTSMC-C2 Device Guide
2
SocketModem Cell CDMA Device Guide
SocketModem iCell CDMA Device Guide
S000542, Version D
MTSMC-C2-xx, MTSMC-C2-IP-xx, MTSMC-C2-GP-xx
Copyright
This publication may not be reproduced, in whole or in part, without prior expressed written permission from Multi-Tech Systems, Inc. All rights reserved.
Copyright © 2016 by Multi-Tech Systems, Inc.
Multi-Tech Systems, Inc. makes no representations or warranties with respect to the contents hereof and specifically disclaim any implied warranties of
merchantability or fitness for any particular purpose. Furthermore, Multi-Tech Systems, Inc. reserves the right to revise this publication and to make
changes from time to time in the content hereof without obligation of Multi-Tech Systems, Inc. to notify any person or organization of such revisions or
changes.
Trademarks
SocketModem, Universal IP, and the Multi-Tech logo are registered trademarks of Multi-Tech Systems, Inc. Microsoftand Windowsare registered
trademarks of Microsoft Corporation in the United States and other countries. All other brand and product names are trademarks or registered
trademarks of their respective companies.
Contacting Multi-Tech
Knowledge Base
The Knowledge Base provides immediate access to support information and resolutions for all Multi-Tech products. Visit
http://www.multitech.com/kb.go.
Support Portal
To create an account and submit a support case directly to our technical support team, visit: https://support.multitech.com
Technical Support
Business Hours: M-F, 9am to 5pm CT
Country By Email By Phone
Europe, Middle East, Africa: [email protected] +(44) 118 959 7774
U.S., Canada, all others: [email protected] [phone] or [phone]
World Headquarters
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, Minnesota 55112
Phone: [phone] or 800-328-9717
Fax: [phone]
Warranty
To read the warranty statement for your product, please visit: http://www.multitech.com/warranty.go.

CONTENTS
3
SocketModem CDMA MTSMC-C2 Device Guide
Contents
Chapter 1 – Device Overview......................................................................................................................................5
Description .......................................................................................................................................................................... 5
Product Build Options ......................................................................................................................................................... 5
Documentation ................................................................................................................................................................... 6
Chapter 2 – Mechanical Drawings...............................................................................................................................7
MTSMC-C2 Builds................................................................................................................................................................ 7
Chapter 3 – Specifications ..........................................................................................................................................8
Technical Specifications ...................................................................................................................................................... 8
Mounting Hardware............................................................................................................................................................ 9
Device Reset........................................................................................................................................................................ 9
Powering Down Your Device............................................................................................................................................... 9
Serial Signal DC Electrical Characteristics ........................................................................................................................... 9
Absolute Maximum Rating ........................................................................................................................................... 10
Electrical Characteristics Other Pins ................................................................................................................................. 10
Pinout Specifications......................................................................................................................................................... 10
Pin 58 ............................................................................................................................................................................ 11
Pin Availability by Build ..................................................................................................................................................... 11
Power Measurements....................................................................................................................................................... 11
MTSMC-C2 .................................................................................................................................................................... 12
MTSMC-C2-IP ................................................................................................................................................................ 12
MTSMC-C2-GP............................................................................................................................................................... 12
Chapter 4 – FCC and Industry Canada Information ....................................................................................................13
FCC Grant Parts 22 and 24 ................................................................................................................................................ 13
Industry Canada ................................................................................................................................................................ 13
Chapter 5 – Carrier Specific Information ...................................................................................................................14
Notice for Devices that Use Aeris Radios.......................................................................................................................... 14
Multi-Tech Sprint Approved Device Requirements .......................................................................................................... 14
Telit OMA DM Notifications.............................................................................................................................................. 14
#9XX OMA Unsolicited Indications ............................................................................................................................... 15
OMA-DM COMMANDS ................................................................................................................................................. 16
Sprint Successful Indications......................................................................................................................................... 17
Chapter 6 – Application Notes ..................................................................................................................................18
LED Interface..................................................................................................................................................................... 18

CONTENTS
SocketModem CDMA MTSMC-C2 Device Guide
4
LED 1 – Heartbeat –IP and –GP Builds Only.................................................................................................................. 18
LED 2 – Link Status – All Builds...................................................................................................................................... 18
LED 3 – Signal Strength –IP and –GP Builds Only.......................................................................................................... 18
LED 4 – GPS Status – GP Builds ..................................................................................................................................... 18
RF Performances ............................................................................................................................................................... 19
Receiver Features.......................................................................................................................................................... 19
Transmitter Features......................................................................................................................................................... 19
RF Connection and Antenna ......................................................................................................................................... 19

CHAPTER 1 – DEVICE
OVERVIEW CHAPTER 1 DEVICE
5
SocketModem CDMA MTSMC-C2 Device Guide
Chapter 1 – Device Overview
Description
The SocketModem cellular modem is a complete, ready-to-integrate communications device that offers 2G dual-
band CDMA 1xRTT performance. These quick-to-market communications devices allow developers to add wireless
communication 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 Cell and iCell cellular modems are based on industry-standard open
interfaces and use Multi-Tech’s Universal Socket design.
Product Build Options
Product
Description
Region
Builds using Sprint Services
MTSMC-C2-N2
SocketModem Cell 800/1900 MHz CDMA 1xRTT – Sprint – Data only
USA
MTSMC-C2-GP-N2
SocketModem iCell 800/1900 MHz CDMA 1xRTT – Sprint – with GPS/Universal IP
USA
MTSMC-C2-IP-N2
SocketModem iCell 800/1900 MHz CDMA 1xRTT – Sprint – with Universal IP
USA
Builds using Verizon Wireless Services
MTSMC-C2-N3
SocketModem Cell 800/1900 MHz CDMA 1xRTT – Verizon – Data Only
USA
MTSMC-C2-GP-N3
SocketModem iCell 800/1900 MHz CDMA 1xRTT – Verizon – with GPS/Universal IP
USA
MTSMC-C2-IP-N3
SocketModem iCell 800/1900 MHz CDMA 1xRTT – Verizon – with Universal IP
USA
Builds using Aeris Communication, Inc. Services
MTSMC-C2-N16
SocketModem Cell 800/1900 MHz CDMA 1xRTT – Aeris – Data Only
USA
MTSMC-C2-GP-N16
SocketModem iCell 800/1900 MHz CDMA 1xRTT – Aeris – with GPS/Universal IP
USA
MTSMC-C2-IP-N16
SocketModem iCell 800/1900 MHz CDMA 1xRTT – Aeris – with Universal IP
USA
Developer Kit
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.
All builds can be ordered individually or in 50-packs.
The complete product code may end in .Rx. For example, MTSMC-C2-N2.Rx, where R is revision and x is the
revision number.

CHAPTER 1 – DEVICE OVERVIEW
SocketModem CDMA MTSMC-C2 Device Guide
6
Documentation
The following documentation is available by email to [e-mail] or by using the Developer Guide
Request Form on the multitech.com website.
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 CDMA devices:
S000546 for EV3 and C2 Modems (Not for MTSMC-C2-N2.R3 models)
80399ST10110A Rev.9 Telit AT Commands Reference Guide (for MTSMC-C2-N2.R3 models only)
S000457 Universal IP Commands

CHAPTER 2 – MECHANICAL DRAWINGS
7
SocketModem CDMA MTSMC-C2 Device Guide
Chapter 2 – Mechanical Drawings
MTSMC-C2 Builds

CHAPTER 3 –SPECIFICATIONS
SocketModem CDMA MTSMC-C2 Device Guide
8
Chapter 3 – Specifications
Technical Specifications
Cat egory
Description
General
Standards
2G CDMA 1xRTT
Frequency Bands
Dual-band 800/1900 MHz CDMA
Speed
Serial/Data Speed
Peak downlink speeds up to 153 Kbps
Peak uplink speeds up to 153 Kbps
Interface, Ports
Serial Modem Interface
Up to 921.6 Kbps
Physical Description
Weight
1 oz. (28g)
Dimensions
3.15" x 1.375" (80.010 mm x 34.93 mm)
Connectors
Antenna Connector
Surface mount UFL one cellular, one GPS (GP models only)
Environment
Operating Temperature
-40° C to +85° C
Storage Temperature
-40 °C to +85°C
Humidity
20% to 90% non-condensing
Power Requirements
Operating Voltage
3.3 - 5VDC ±10%
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
models only)
SMS
Point-to-Point messaging
Mobile-Terminated SMS
Mobile-Originated SMS
Certifications, Compliance
EMC Compliance
FCC Part 15
Radio Compliance
FCC Part 22
FCC Part 24
RSS 132
RSS 133
Safety Compliance
UL 60950-1
cUL 60950-1
EN 60950-1
Network Compliance
Verizon
Sprint (pending)
Aeris (pending)
Note: Radio performance may be affected by temperature extremes. This is normal.

CHAPTER 3 –SPECIFICATIONS
9
SocketModem CDMA MTSMC-C2 Device Guide
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
Surface Mount Standoff
SMTSO-M3-4ET
RAF Electronic Hardware 3/16” Hex Female Standoff 2051T-440-S-12 Zinc
RAF Electronic Hardware 4.5mm Hex Female Standoff 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
TimeConstant
"X" Time
Minimum Reset Pulse1
Maximum Reset Pulse
MTSMC-C2
250 ms
10 seconds
200 µs
Less than 1 second
1The SocketModem may respond to a shorter reset pulse.
Powering Down Your Device
CAUTION: Failing to properly shutdown the device before removing power may corrupt your device's file system.
To properly power down your device, use the following sequence:
1. Issue the AT#SHDN command.
2. Wait 30 seconds.
3. Power off the device. Disconnect power from the device.
Serial Signal DC Electrical Characteristics
Units: Volts
Applies to the following pins:
Pin
Signal Name
Pin
Signal Name
J33
-RTS
J37
-DSR
J34
-RXD
J38
-CTS
J35
-TXD
J39
-DCD
J36
-RI
J40
-DTR
Parameter
Minimum
Maximum
3.3 Volt Powered
Input Low Level
0
0.55
Input High Level
1.5
3.3
Output Low Level
0
0.55
Output High Level
2.35
3.3

CHAPTER 3 –SPECIFICATIONS
SocketModem CDMA MTSMC-C2 Device Guide
10
5 Volt Powered
Input Low Level
0
0.8
Input High Level
2.3
5
Output Low Level
0
0.55
Output High Level
3.7
5
Absolute Maximum Rating
VCC Voltage (Survival) -0.3V to +5.5V
Electrical Characteristics Other Pins
Pin
Signal Name
VIL
VIH
VOL
VOH
Min
Max
Min
Max
Min
Max
Min
Max
J24
-RESET
0.8
2.0
--
--
--
--
J26
GND
--
--
--
--
--
--
--
--
J41
GND
--
--
--
--
--
--
--
--
J58
-LED LINK
--
--
--
--
0
0.45
2.85
3.3
J61
VCC
--
--
--
--
--
--
--
--
J63
GND
--
--
--
--
--
--
--
--
Pinout Specifications
Pin
Signal Name
Logic Level Voltage1
I/O
Description
J24
–RESET
3.3 – 5.0
I
Device reset (active low)
J26
GND
GND
GND
Ground
J33
–RTS
3.3 – 5.0
I
Request to send (active low)
J34
–RXD
3.3 – 5.0
O
Received data (active low)
J35
–TXD
3.3 – 5.0
I
Transmitted data (active low)
J36
–RI
3.3 – 5.0
O
Ring indicator (active low)
J37
–DSR
3.3 – 5.0
O
Data set ready (active low)
J38
–CTS
3.3 – 5.0
O
Clear to send (active low)
J39
–DCD
3.3 – 5.0
O
Data carrier detect (active low)
J40
–DTR
3.3 – 5.0
I
Data terminal ready (active low)
J41
GND
GND
GND
Ground
J58
–LED LINK
3.3
O
Link status (active low, can sink up to 150mA)
J61
VCC
3.3 – 5.0
PWR
DC input power
J63
GND
GND
GND
Ground
1A hyphen (-) indicates a range of acceptable logic levels.

CHAPTER 3 –SPECIFICATIONS
11
SocketModem CDMA MTSMC-C2 Device Guide
Pin 58
Note: Pin 58 may or may not be available on some SocketModems.
Pin 58LEDMode
OperatingStatus
OFF
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/75 ms ON
3 s OFF
Flashing or Blinking
One or more CDMA contexts activated. Indicates CDMA data transfer: When a
transfer is in progress, the LED goes on within 1 second after data packets were
exchanged. Flash duration is approximately 0.5 s.
ON
Connected to remote party or parameter exchange while call is set up or
disconnected.
Pin Availability by Build
Pin and Function
Serial only
GP-IP
J24 - Reset
x
x
J26 - GND
x
x
J33 - RTS
x
x
J34 - RXD
x
x
J35 - TXD
x
x
J36 - RI
x
x
J37 - DSR
x
x
J38 - CTS
x
x
J39 - DCD
x
x
J40 - DTR
x
x
J41 - GND
x
x
J58 - LED LINK
x
J61 - VCC
x
x
J63 - GND
x
x
Power Measurements
Multi-Tech Systems, Inc. recommends that you incorporate a 10% buffer into your power source when
determining product load.
Note: Protocol is 1xRTT US Cellular 800 and 1xRTT US PCS 1900.

CHAPTER 3 –SPECIFICATIONS
SocketModem CDMA MTSMC-C2 Device Guide
12
MTSMC-C2
Radio Protocol
Sleep Mode
Current
(Amps)
Cellular Call Box
Connection No
Data (Amps)
Average Measured
Current (Amps) at
Maximum Power
Peak TX
Amplitude
Current (Amps)
Total Inrush Charge
measured in
Millicoulombs
3.3 Volts
US Cellular 0.034 0.055 0.687 0.744 1.08
PCS 0.034 0.055 0.865 0.92 1.08
5 Volts
US Cellular 0.032 0.044 0.445 0.5 1.52
PCS 0.032 0.045 0.552 0.604 1.52
MTSMC-C2-IP
Radio Protocol
Cellular Call Box
Connection No Data
(Amps)
Average Measured
Current (Amps) at
Maximum Power
Peak TX Amplitude
Current (Amps)
Total Inrush
Charge measured
in Millicoulombs
3.3 Volts
US Cellular 0.142 0.736 0.795 3.37
PCS 0.141 1.244 1.319 3.37
5 Volts
US Cellular 0.099 0.457 0.512 1.73
PCS 0.1 0.689 0.747 1.73
MTSMC-C2-GP
Radio Protocol
Cellular Call Box
Connection No Data
(Amps)
Average Measured
Current (Amps) at
Maximum Power
Peak TX Amplitude
Current (Amps)
Total Inrush
Charge measured
in Millicoulombs
3.3 Volts
US Cellular
0.257
0.903
0.976
3.37
PCS 0.255 1.358 1.44 3.37
5 Volts
US Cellular 0.175 0.564 0.632 1.73
PCS 0.173 0.767 0.832 1.73
Notes:
Maximum: The continuous current during maximum data rate with the radio transmitter at maximum power.
Peak TX:The peak current during a CDMA transmission burst period.
In-Rush Charge:The total input charge during power up.

CHAPTER 4 – FCC AND INDUSTRY CANADA INFORMATION
13
SocketModem CDMA MTSMC-C2 Device Guide
Chapter 4 – FCC and Industry Canada Information
The following is device specific FCC and Industry Canada information. For additional approval and regulatory
information, see the Universal Socket Developer Guide (S000342).
FCC Grant Parts 22 and 24
FCC Identifier
RI7CE910-DUAL
Equipment Class
PCS Licensed Transmitter
Notes
Dual Band CDMA
Modular Type:
Single Modular
FCC Rul e Par t s
Frequency Range(MHz)
Output Watts
Frequency Tolerance
Emission Designators
22H
824.7 - 848.31
0.292
2.5 PM
1M28F9W
24E
1851.25 – 1908.75
0.278
2.5 PM
1M28F9W
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 5.12dBi for part 22H and
6.12dBi 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.
Industry Canada
Certification Number/No. de Certification
5131A-CE910DUAL
Type of Radio Equipment/Type de Matériel
Cellular Mobile New Technologies (824-849 MHz); Modular
Approval PCS Mobile [phone] MHz)
Model/Modele
CE910-DUAL
Specification/
Cahier des
Char ges
Issue/
Édition
From
Frequency/
De Fréquences
To
Frequency/
Á
Fréquences
Emission
Designation/
Designation
D’émission
Minimum Power
Maximum
Power
RSS132
2.0
824.7 M
848.31 M
1M28F9W
292 mW
292 mW
RSS133
5.0
1.851 G
1.909 G
1M28F9W
278 mW
278 mW

CHAPTER 6 –APPLICATION NOTES
SocketModem CDMA MTSMC-C2 Device Guide
14
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.
Multi-Tech Sprint Approved Device Requirements
Any changes to a Sprint approved Multi-Tech device circuit board or antenna system requires you to contact
Sprint certifications. Sprint will determine if additional testing is required due to modification of the approved
device circuit board or antenna system.
All applications interacting with Sprint approved Multi-Tech devices must be written in a manner where they do
not interfere/ interrupt the Sprint HFA process or OMA-DM processes outlined in section labeled Telit OMA DM
Notifications.
If the Multi-Tech device will be co-located with any other transmitters you will be required to submit your device
to an FCC approved lab for additional FCC testing.
If the Sprint approved Multi-Tech device/circuit board is embedded into another device/circuit board be aware
you will be required to perform EMC and safety testing on your end device.
Telit OMA DM Notifications
Applications should look for the following unsolicited OMA indications at all times:
#904 HFA Started
#905 PRL - Session started
#906 DC - Session started
#907 FUMO -Session started
If application sees one of these indications it should not attempt to issue commands, attempt data connection, or
reset device until the OMA process is complete as indicated by additional #9XX OMA success or failure indications
below.
If the device is in a data connection when a Network Initiated PRL, DC, or FUMO update alert message is received
from Sprint the radio will wait for a point where data is not being transmitted, then “gracefully” close the data
connection, and then start OMA-DM process with #9xx indication. When this occurs the application should not

CHAPTER 6 –APPLICATION NOTES
15
SocketModem CDMA MTSMC-C2 Device Guide
attempt to issue AT commands, attempt to start data connection again, or reset device in an attempt to regain
control. Application should wait for a #9xx indication the process has completed before proceeding.
Be aware after the HFA process is successfully completed the radio will be reset. The radio may also reset after
other OMA functions.
#9XX OMA Unsolicited Indications
#900 DM Client ready
Hands Free Activation HFA Notifications:
#901: HFA Attempt #
#902: HFA Countdown Timer (seconds)
#904 HFA Started
#911 HFA Error - credential error
#912 HFA Error - unreachable server
#913 HFA Error - network error
#914 HFA Done - HFA Success
#922 HFA Done - No Profile received
#923 HFA Error – ETC
#924 HFA cancelled
#DREL Data session release
Network Initiated Device Configuration (NIDC) or Client Initiated Device Configuration (CIDC)
#906 DC - Session started
#911 DC - Error - credential error
#912 DC - Error - unreachable server
#913 DC - Error - network error
#915 DC - Error - update fails for other reasons
#918 DC - Done, success
#924 DC - Cancelled No Profile received
#DREL Data session release
Network Initiated or Client Initiated Preferred Roaming List (NIPRL or CIPRL) Download
#905 PRL - Session started
#909 PRL - Done - PRL success
#910 PRL - Done - No PRL update
#911 PRL - Error - credential error
#912 PRL - Error - unreachable server
#913 PRL - Error - network error
#915 PRL - Error - update failed for other reasons
#DREL Data session release
Network Initiated (NI) or Client Initiated (CI) Firmware Update Management Object (FUMO)
Notifications
#907 FUMO - Firmware DM session started or started again until no more updates are available
#911 FUMO - credential error
#912 FUMO - unreachable server
#913 FUMO - network error

CHAPTER 6 –APPLICATION NOTES
SocketModem CDMA MTSMC-C2 Device Guide
16
#915 FUMO – update fails with other reasons
#916 FUMO - Firmware Done, No firmware update
#919 FUMO - Firmware downloaded successfully
#920: FUMO - Firmware download progress (percent)
#921 FUMO - Firmware download start
#921 FUMO - Firmware size get from the OMA-DM server (byte)
#929: 200 FUMO - Firmware Update Success
#929: 402 FUMO - Firmware corrupted , CRC error
#929: 403 FUMO - Firmware Package Mismatch
#929: 404 FUMO - Firmware Signature Failed
#929: 406 FUMO - Firmware update Authentication Failed
#929: 410 FUMO - Firmware update General Error
#930 FUMO - Firmware Reporting Firmware Update result to server
#DREL FUMO - Firmware Data session release
Additional Network Initiated Alert Indications (NIA Retry)
#926 NIA - NIA retry start
#927 NIA - Notification Done with no NIFA information
#928 NIA - NIA digest mismatch error
OMA-DM COMMANDS
These commands are available after the unsolicited indication #900 appears, which means DM client is ready.
AT#OMADMSVADDR=<URL>
Set OMA-DM server address (default https://oma.ssprov.sprint.com/oma)
AT#OMADMSVADDR?
Read OMA-DM server address
AT#OMADMSVPORT=<port#>
Set OMA-DM server (default 443)
AT#OMADMSVPORT?
Read OMA-DM server
AT#OMADMPROXY=<port#>,<URL>
Set OMA-DM proxy server port/URL (default
http://oma.ssprov.sprint.com:80)
AT#OMADLPROXY=<port#>,<URL>
Set OMA-DL Proxy DL Server Port URL (default
http://oma.ssprov.sprint.com:80)
AT#OMADMCEN=<onoff>
Set OMA-DM Client feature; Disable=0, Enable=1
Important: Never deploy devices with AT#OMADMCEN=0. Many OMA
commands result in error if OMADMCEN is set to 0.
AT#OMADMCEN?
Query the current OMA-DM client status
AT#OMADMCEN=?
Query OMA-DM available values
AT+OMADM=(onoff)
Set OMA-DM Client Initiated Device Configuration; Disable=0, Enable=1,
Initiate=2
AT+OMADM=?
Query OMA-DM Client Initiated Device setting
AT+PRL=<onoff>
Set OMA-DM CIPRL Session; Disable=0, Enable=1, Initiate=2
AT+PRL=?
Query OMA-DM CIPRL Session setting
AT+FUMO=
Set OMA-DM FUMO enable parameter; Disable=0, Enable=1, Initiate=2

CHAPTER 6 –APPLICATION NOTES
17
SocketModem CDMA MTSMC-C2 Device Guide
AT+FUMO=?
Query OMA-DM FUMO parameter
AT#HFA
Initiate Sprint Hands Free Activation (HFA)
AT#HFACANCEL
Cancel Sprint Hands Free Activation (HFA) DM Session
AT$RTN=xxxxxx
HFA reset (after device reboot HFA will occur) xxxxxx= SPC or MSL.
Note: May not work with all firmware versions.
AT#SPRTN=xxxxxx
After device reboot HFA will occur xxxxxx= SPC or MSL
AT#DCCANCEL
Cancel Device Configuration (DC) Session
AT#PRLCANCEL
Cancel Preferred Roaming List (PRL) Session
AT$PRL?
Query Preferred Roaming List (PRL) ID #
AT#FUMOCANCEL
Cancel Firmware Update Management Object (FUMO) session.
Sprint Successful Indications
Typical Successful HFA
Session Indications
Alternate Successful HFA Session
Indications
Typical Successful FUMO Session Indications
With firmware update
#900
#900
#907
#904
#904
#921
#919
#914
#921: 572 Bytes
#905
#905
#920:23
#909
#910
#920:100
#907
#900
New firmware installing
#916
#900
#900
#930
#907
#929:200
Typical Successful FUMO Session
Indications without Firmware Update
Typical Successful PRL Sessions
Indications
Typical Successful DC Session
Indications
#907
#905
#906
#916
#909
#918
or
#905
#910

CHAPTER 6 –APPLICATION NOTES
SocketModem CDMA MTSMC-C2 Device Guide
18
Chapter 6 – Application Notes
LED Interface
The LED signal indicates the SocketModem working status.
LED 1 – Heartbeat –IP and –GP Builds Only
LED 1 Si gnal
Heartbeat LED
OFF
No power to the unit.
Blinking
Power on.
LED 2 – Link Status – All Builds
LED 2 Si gnal
Link Status LED
OFF
Device off.
ON
Continuously lit
During initial connection to tower or when connected and
passing data.
Slow blink (-0.2Hz)
Registered to tower and idle.
Faster blink (-3Hz)
Powered not registered/Searching for registration.
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 3Si gnal
Signal Strength 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 4Si gnal
GPS StatusLED
OFF
No power to the unit.
ON
Continuously lit
Satellite not acquired.
Blinking
Satellite acquired.

CHAPTER 6 –APPLICATION NOTES
19
SocketModem CDMA MTSMC-C2 Device Guide
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
Cat egory
Description
CDMA 1xRTT US Cellular 800 (Verizon) sensitivity
< -108 dBm
CDMA 1xRTT US PCS 1900 (Sprint) sensitivity
< -107 dBm
Transmitter Features
Cat egory
Description
Maximum output power
+24 dBm ± 1 dBm
RF Connection and Antenna
The RF connector on the SocketModem is a UFL standard type. See the Universal Socket Developer Guide for
antenna details.