Multi-Tech Systems, Inc. makes no representations or warranties with respect to the contents hereof and
specifically disclaims 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.
Revisions
Revision LevelDate Description
A07/15/03First release.
Patents
This device is covered by patent number 5,673,268.
Trademarks
Trademarks of Multi-Tech Systems, Inc. are ModemModule and the Multi-Tech logo.
MNP and Microcom Network Protocol are registered trademarks of Microcom, Inc.
Microsoft, Windows, Windows 95, and Windows NT are either registered trademarks or trademarks of Microsoft
Corporation in the United States and/or other countries.
World Headquarters
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, Minnesota 55112
Phone: 763-785-3500 or 800-328-9717
Fax: 763-785-9874
Technical Support
CountryBy EmailBy Phone
France:support@multitech.fr(33) 1-64 61 09 81
India: support@multitechindia.com91 (124) 6340778
U.K.:support@multitech.co.uk(44) 118 959 7774
U.S. and Canada: oemsales@multitech.com(800) 972-2439
Rest of the World: oemsales@multitech.com(763) 717-5863
Internet Address: http://www.multitech.com
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide2
Table of Contents
CHAPTER 1 – PRODUCT DESCRIPTION AND SPECIFICATIONS ................................................................5
Scope of the Developer Guide ................................................................................................................................5
Short Message Service (GSM and GPRS mode).....................................................................................................6
GSM Circuit Data Features ...................................................................................................................................7
GPRS Packet Data Features ..................................................................................................................................7
Other Features .......................................................................................................................................................7
IN CONNECTOR INTERFACES..............................................................................................................................14
Power Supply........................................................................................................................................................17
Serial Link ............................................................................................................................................................19
ON / ~OFF Interface ............................................................................................................................................20
Reset Signal (~RST)..............................................................................................................................................22
Flashing LED .......................................................................................................................................................23
General Purpose Input/Output.............................................................................................................................24
Analog to Digital Converter.................................................................................................................................24
SPI Bus .................................................................................................................................................................31
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide3
GENERAL GUIDELINES FOR THE USE OF THE MODEMMODULE.................................................................................37
Hardware and RF.................................................................................................................................................37
The Antenna..........................................................................................................................................................37
Initial Configuration Using Mobile PhoneTools..................................................................................................37
Getting Started .....................................................................................................................................................38
General Safety ......................................................................................................................................................42
Instructions to OEMs............................................................................................................................................43
APPENDIX C – AT COMMAND LIST ..................................................................................................................48
APPENDIX D – ACRONYMS AND ABBREVIATIONS .....................................................................................53
INDEX ........................................................................................................................................................................54
LIST OF TABLES...................................................................................................................................................57
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide4
Chapter 1 – Product Description & Specification
Chapter 1 – Product Description and Specifications
Introduction
ModemModule GSM/GPRS integrated wireless modems provide a quick and easy way to insert GSM and GPRS
functionality into systems and terminals. Available in dual-band configurations, this fully type approved integrated
modem constitutes a self-contained, fully integrated implementation of the GSM/GPRS standard. Thanks to
standard interfaces, it can be integrated into any system. It is ready for voice, SMS, data and fax. ModemModule
GSM/GPRS is a product with a single connector, which puts together all interface signals in order to facilitate its
integration. It has an integrated SIM connector as well as a standard RF connector type MMCX. For system
integrators, ModemModule GSM/GPRS is the fast track to the wireless world.
MTMMC-G-F1GSM/GPRS Class 10, 900/1800 MHzGlobal
MTMMC-G-F2GSM/GPRS Class 10, 850/1900 MHzGlobal
The MTMMC-G-F1 and MTMMC-G-F2 ModemModules are used to integrate wIreless data and fax
communications in numerous embedded applications.
Scope of the Developer Guide
This document describes the hardware interface and the technical specifications of the ModemModule
GSM/GPRS wireless modems. The integrated modem is referred to as ModemModule GSM/GPRS according to
the GSM/GPRS 900 standard, the GSM/GPRS 1800 standard and the GSM/GPRS 1900 standard. This product
is based on a Dual Band RF module
G900/1800 includes a GSM 900/1800 MHz module and every integrated modem referenced ModemModule
GSM/GPRS-G850/1900 includes a GSM 850/1900 MHz module. These two dual-band modems have the same
specifications unless otherwise specified.
: every integrated modem referenced ModemModule GSM/GPRS-
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide5
General Characteristics
General
· GPRS Class 10
· Dual Band GSM/GPRS modem E-GSM 900/1800 or GSM 850/1900
· 2W at 850MHz
· 1W at 1800/1900 MHz
· GSM Class 1 and Class 2 Group 3 FAX
· Small size and low power consumption
· Voice and Short Message Services (SMS)
· Fax and data transmission without extra hardware
· Serial interface supports DTE speeds up to 115.2K
· MMCX connector and SIM socket
· 14.4K GSM circuit-switched data
· Tricodec (FR/EFR/HR)
· Internal 3V SIM interface
· Easy remote control by AT commands for dedicated applications
· Fully Type Approved according to GSM Phase 2+ specifications
· Board-to-board or board-to-cable mounting
· Fully shielded and ready-to-use
Chapter 1 – Product Description & Specification
Electrical
· Power supply: 5 VDC +/- 5% 1A
Mechanical
· Absolute maximum dimension: 46 x 64 x 12 mm
· Weight: 79 g
· Casing: Complete shielding-stainless steel/zinc
· Mounting: 4 screw holes
· Operating temperature range: -30°C to + 60°C
· Storage temperature: -35°C to +85°C
Feature Details
Telephony
· Telephony (TCH/FS) & Emergency calls
· Full Rate, Enhanced Full Rate and Half Rate
· Dual Tone Multi Frequency function (DTMF)
Short Message Service (GSM and GPRS mode)
· Text and PDU
· Point to point MT & MO
· SMS Cell Broadcast
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide6
Chapter 1 – Product Description & Specification
GSM Circuit Data Features
· Data circuit asynchronous, transparent and non transparent up to 14,400
· bits/s
· Automatic fax group 3 (Class 1 & 2)
· Alternate speech and fax
· MNP2, V.42bis data compression
GPRS Packet Data Features
· GPRS Class 10
· Coding Schemes: C1S1 to CS4
GSM Supplementary Services
· Call Forwarding
· Call Barring
· Multiparty
· Call Waiting and Call Hold
· Calling Line Identity
· Advice of Charge
· USSD
· Closed User Group
· Explicit Call Transfer
Other Features
· ME+SIM phone book management
· Fixed Dialing Number
· SIM Toolkit Class 2
· SIM, network and service provider locks
· Real Time Clock
· Alarm management
· Software upgrade through Xmodem protocol
· UCS2 character set management
Interfaces
Single antenna interface
Internal SIM interface: 3V only
External SIM interface: 3V or 5V
For Data Operation:
Serial link
Remote control by AT commands (GSM 07.07 and 07.05)
Baud rate from 300 to 115,200 bits/s
From 300 up to 38400 bits/s with autobauding
The integrated modem has a sole 50-pin connector, which gathers all the interface signals in order to facilitate its
integration. It has an integrated SIM card holder as well as a standard RF connector type MMCX. The concept
of the integrated modem has been defined to integrate on a sole device:
·a single connector has been used that is standard and easy to find (it is supplied worldwide);
this connector includes all of the modem’s analog and digital connections
·One standard easy to find RF connector. See RF connector section in Chapter 3: Electrical
Characteristics;
·One SIM card holder. See SIM section in Chapter 3: Electrical Characteristics.
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide7
Chapter 1 – Product Description & Specification
Feature Descriptions
Integration Reduces Space, Power and Cost. The ModemModule GSM/GPRS integrates the
controller, RF transceiver, and antenna interface in one compact unit. This integration requires low power,
occupies very little space, and provides an overall reduction in costs.
Reduces Development Time. The ModemModule GSM/GPRS can make your existing and next
generation device, machine, or system, communication-ready without requiring significant hardware
changes to its design. It actually provides faster time-to-market because it relieves the burden and expense
of obtaining network and RF approvals. This complete, ready-to-integrate wireless module allows you to
enhance your product while you focus on developing its core features.
Voice Features. The ModemModule GSM/GPRS provides telephony and Dual Tone Multi Frequency (DTMF)
functionality. It also allows for emergency calls as well as full rate, enhanced Full Rate and Half Rate
(FR/EFR/HR).
Short Message Services. The ModemModule GSM/ GPRS offers SMS features such as text and PDU, pointto-point (MT/MO) and cell broadcast.
Compatible Supplementary Services. The ModemModule GSM/GPRS is compatible with supplementary
services such as call forwarding, call barring, multiparty, call waiting and call hold, calling line identification,
advice of charge, USSD, closed user group and explicit call transfer.
Management Features. The ModemModule GSM/ GPRS provides advanced management features including
phone book management, fixed dialing number, real time clock and alarm management.
Industry-standard Modem Commands. The ModemModule GSM/GPRS provides industry-standard
AT-style commands for ease of integration into your existing software application.
ModemModule Pin-Out. The ModemModule GSM/ GPRS interfaces easily with existing products
through a standard serial communication channel. The complete on-board RF transceiver interfaces with
an antenna for direct connection to wireless SMS, circuit-switched dial-up, or packet data networks. The
ModemModule is a Data Terminal Equipment (DTE) device with serial asynchronous protocol support. The
serial DTE channel is capable of transfer speeds to 115.2K bps and can be interfaced directly to a UART
or microcontroller. It can be board-to-board or board-to-cable mounted.
Network and RF Approved. The ModemModule GSM/ GPRS has been tested and certified with
wireless telecom network providers worldwide. In addition, it has successfully completed worldwide
compliance
Developer’s Kit. The ModemModule GSM/GPRS Developer’s Kit allows you to plug in the
ModemModule and use it for testing, programming and resolving application issues.
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide8
Chapter 1 – Product Description & Specification
Applications
With circuit switched data rates up to 14.4K bps, the MultiModem GSM/GPRS is targeted at applications that
periodically need to send or receive data over a wireless network. It is an ideal device for:
AppliancesRemote Diagnostics
ATM TerminalsRemote Metering
AutomotiveSecurity Systems
Data CollectionVending/Gaming
Machines
Gas PumpsOther devices requiring
wireless connectivity.
Industrial and Medical
Remote Monitoring
Systems
Note: The Wireless
MultiModem must be
mounted with at least 8
inches (20 cm) of clearance
from the human body.
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide9
Chapter 1 – Product Description & Specification
Mechanical Design Overview
The ModemModule is encased as shown in the figure below. It includes a RF module, a 50-pin connector, a SIM
holder and a RF connector.
Interface Connector
Figure 1-2: Mechanical Description A
Holes for Mounting
Screws (4)
Hole dia. = 0.087”
Antenna Connector
(MMCX type)
SIM ejection button
SIM Reader
Figure 1-3: Mechanical Description B
Four screw holes allow the ModemModule to be fixed on the mother PCB. The ModemModule can be mounted
indifferently on both sides (top or bottom). For further details see Chapter 2: Mechanical Specifications.
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide10
Chapter 2 – Mechanical Specifications
Chapter 2 – Mechanical Specifications
Mechanical Dimensions
Figure 2-1: ModemModule Dimensions
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide11
Chapter 2 – Mechanical Specifications
Climatic and Mechanical Environment Testing Compliance
Table 2-1 : Climatic and Mechanical Environment Testing Compliance
26GPIO0I/OCMOS/2XGeneral Purpose I/O
27CT107/DSRO1XData Set Ready
28CT104/RXO1XReceive Data
29CT108-2/DTRIData Terminal Ready
30CT105/RTSIRequest to SendPull up with
31COL3I/O1XKeypad column
32COL4I/O1XKeypad column
33COL1I/O1XKeypad column
34COL2I/O1XKeypad column
35ROW4I/O1XKeypad row
36COL0I/O1XKeypad column
37ROW2I/O1XKeypad row
38ROW3I/O1XKeypad row
39ROW0I/O1XKeypad row
40ROW1I/O1XKeypad row
41NCNot Connected
42SPI_ENO1XSPI enable
43SPI_IOI/O1XI2C Data or SPI Data
44SPI_CLKO2XI2C Clock or SPI Clock
45SIMCLKO2XClock for SIM interface3V mode
46SIMRSTO2XReset for SIM interface3V mode
47SIMVCCOSIM card supply3V mode
48SIMPRESISIM card detectConnected to
49SIMDATAI/O3XI/O for SIM interface3V mode
50GPO0General purpose I/O
* See SIM socket diagram in SIM interface section
** GPO0 is a general purpose output for selection of external SIM, 3V or 5V.
Pull up with
100K-ohm
when not used
100K-ohm
when not used
6mA max.
SIM connector
pin 8. Pin 4 of
SIM connector
must be pulled
down to GND
with 1 K-Ohm*
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide15
Chapter 3 – Electrical Characteristics
Table 3-2. Operating Conditions
ParameterI/O TypeMinMaxCondition
V
input low
V
input high
V
output low
V
output high
CMOS-0.5V0.8V
CMOS2.1V3.0V
1X0.2VIOL = -1mA
2X0.2VIOL = -2mA
3X0.2VIOL = -3mA
1X2.6VIOH = 1mA
2X2.6VIOH = 2mA
3X2.6VIOH = 3mA
Figure 3-1: 50-Pin Connector
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide16
Chapter 3 – Electrical Characteristics
50
2
Figure 3-2: Pin Numbering – Bottom View
49
1
Power Supply
The main power supply is provided through a double connection. These connections are respectively pins 3 and
4 for the +5V and the pins 1 and 2 for the ground (GND). The pins 6, 21, and 24 are also ground connection in
order to produce a proper ground plane.
A 5V +/-5% - 1A power is strictly required to supply the modem. Otherwise, serious dysfunctions may appear.
However, the modem does not have to constantly deliver 1A current at 5V on this power supply.
This power supply is internally regulated to a nominal value VBATT.
Table 3-3: Power Supply Pin Description
Pin NumberNameDescriptionComment
1GNDGroundHigh Current
2GNDGroundHigh Current
3+5VGroundHigh Current
4+5VGroundHigh Current
6GNDGroundHigh Current
21GNDGroundHigh Current
24GNDGroundHigh Current
Table 3-4: Power Consumption in EGSM-only mode @25 degrees C
+5V
+5V
+5V
+5V
ConditionsI
During TX bursts @2W810 mA1 A
Average @ 2W310 mA370 mA
Average @ ).5W185 mA200 mA
Average idle mode22 mA25 mA
NOM
I
MAX
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide17
Chapter 3 – Electrical Characteristics
Table 3-5: Power Consumption in GSM-only 1800 & 1900 MHz modes @25 degrees C
+5V
+5V
+5V
+5V
ConditionsI
During TX bursts @1W635 mA800 mA
Average @1W260 mA280 mA
Average @ 0.25W150 mA170 mA
Average idle mode20 mA22 mA
NOM
I
MAX
Table 3-6: Power Consumption in EGSM/GPRS 900 MHz and GSM/GRPS 850 MHz Mode
Class 10
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
ConditionsI
During TX bursts @PcI51.7 A peak2.0 A peak
During RX bursts75 mA peak80 mA peak
Average 1Rx/1Tx @PcI5270 mA320 mA
Average 1Rx/1Tx@PcI8180 mA200 mA
Average idle mode
Average GPRS CI 10
(3Rx/2Tx) @PcI5
Average GPRS CI 10
(3Rx/2Tx) @PcI8
Average Idle mode2,2 mA3 Ma
NOM
100 mA300 mA
540 mA640 mA
360 mA400 ma
I
MAX
Power Control Level: PcI5=2W typ.; PcI8=0,5W typ.
Table 3-7: Power Consumption in GSM/GRPS 1800 MHz and GSM/GRPS 1900 MHz
Class 10
ConditionsI
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
Power Control Level: PcI0=1W typ; PcI3=0,25W typ
During TX bursts @PcI01.3 A peak1.7 A peak
During RX bursts75 mA peak80 mA peak
Average 1Rx/1Tx @PcI5240 mA270 mA
Average 1Rx/1Tx@PcI8150 mA180 mA
Average idle mode
Average GPRS CI 10
(3Rx/2Tx) @PcI5
Average GPRS CI 10
(3Rx/2Tx) @PcI8
Average Idle mode2,2 mA3 Ma
NOM
100 mA300 mA
480 mA540 mA
300 mA360 Ma
I
MAX
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide18
Chapter 3 – Electrical Characteristics
Serial Link
A serial link interface is available complying with V24 protocol signaling but not with V28 (electrical interface) due
to a 2.8 Volts interface. TX, RTS and DTR can be either 5V or 3V.
The signals are Tx data (CT103/TX), Rx data (CT104/RX), Request To Send (CT105/RTS), Clear To Send
(CT106/CTS), Data Terminal Ready (CT108-2/DTR) and Data Set Ready (CT107/DSR).
The set of RS232 signals can be required for GSM DATA services application. The 2 additional signals are Data
Carrier Detect (CT109/DCD) and Ring Indicator (CT125/RI).
Table 3-8: Serial Link Pin Description
SignalPin NumberI/OI/O Type*Description
CT103 / TX25ICMOSTransmit serial data
CT104 / RX28O1XReceive serial data
CT105 / RTS30ICMOSReady to send
CT106 / CTS13O1XClear to send
CT107 / DSR27O1XData set ready
CT108-2 / DTR29ICMOSData terminal ready
CT109 / DCD5OCMOS / 2XData carrier detect
CT125 / RI9OCMOS / 2XRing indicator
* See “Table 3-2: Operating Conditions” in section on the 50-pin Connector Description.
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide19
Chapter 3 – Electrical Characteristics
Vcc
Modem
RI
DCD
RX
CTS
DSR
DTR
TX
RTS
Vcc
28
25
1
3
24
23
22
19
17
16
21
20
18
13
C1+
C1C2+
C2-
T1IN
T2IN
T3IN
T4IN
T5IN
R1OUTB
R2OUT
R3OUT
R4OUT
ON
T1OUT
T2OUT
T3OUT
T4OUT
T5OUT
R1IN
R2IN
R3IN
ERROR
OFF
27
2
26
4
5
6
7
10
12
8
9
11
15
14
Te rm in alLevel Shifter
GND
S_RI
S_DCD
S_RX
S_CTS
S_DSR
S_DT R
S_TX
S_RTS
Vcc
MAX 3238
*T h is ap pli catio n n ot e is va li d f or V c c> 3. 0 Vo lt (se e MAX 32 38 speci ficatio n s )
Auto sh ut d ow n mo de i s not used in th is examp le.
Figure 3-3: Level Shifter Application Diagram for Serial Link
Vcc
Vcc
GND
ON / ~OFF Interface
This input is used to switch ON or OFF the ModemModule. A high level signal has to be provided on the
ON/~OFF pin to switch on the modem. The level of the voltage of this signal has to be maintained to VCC during
a minimum time of 1 second. When powered off, the shutdown current is roughly 60 microAmperes.
Table 3-9: ON / OFF Pin Description
SignalPin NumberI/OI/O Type*Description
ON / ~OFF15ICMOSModule Power ON/OFF
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide20
Chapter 3 – Electrical Characteristics
Power OFF Procedure
In order to power OFF the ModemModule, switch it OFF both via software (AT+CPOF; see AT Command
Manual for more details) and via hardware line. See the diagrams below.
ON/~OFF
Serial Link
to ModemModule
Serial Link
from
Mode m Module
Mo de mMod ule
Stat us
___
ON
OFF___
ON /~O FF
Seria l Li nk
to ModemMo dule
Seria l Li nk
from
ModemModule
AT + C PO F
OK r e s po nse
Figure 3-4: Power-Off Procedure 1
AT+ C PO F
OK response
About
500 ms
About
500 ms
About
500 ms
ModemModule
___
Sta tus
ON
OF F_ __
Figure 3-5: Power-Off Procedure 2
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide21
Chapter 3 – Electrical Characteristics
BOOT
This input is used to switch the ModemModule into download mode (backup procedure). The internal boot
procedure is started when this pin is low during the power ON of the module. In normal mode, this pin has to be
left open. If used, this input has to be driven by an open collector or an open drain. See below an example of
application diagram. See also the “Firmware Upgrade” section of Chapter 5: Application Considerations.
BOOT : Pin 23
Switch BOOT
Figure 3-6: Boot Procedure
If Switch Boot = 1, Boot pin 23 = 0, to download mode
If Switch Boot = 0, Boot pin 23 = 1, to normal mode
Table 3-10: BOOT Pin Description
SignalPin NumberI/OI/O Type*Description
BOOT23ICMOSSW downloading
* See “Table 3-2: Operating Conditions” in section on the 50-pin Connector Description.
Reset Signal (~RST)
This signal is used to force a reset of the ModemModule. It has to be used by providing low level during
approximately 2ms. This signal has to be considered as an emergency reset only. A reset procedure is already
driven by an internal hardware during the power-up sequence.
This signal can also be used to provide a reset to an external device. If no external reset is necessary this input
can be left open. If used (emergency reset), it has to be driven by an open collector or an open drain. See below
an example of application diagram.
Reset : Pin 23
Switch Reset
Figure 3-7: Reset Procedure
If switch Reset = 1, Reset pin 19 = 0
If switch Reset = 0, Reset pin 19 = 1
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide22
Chapter 3 – Electrical Characteristics
Table 3-11: Reset Signal Pin Description
SignalPin NumberI/OI/O Type*Description
~RST19I/OModule reset
* See “Table 3-2: Operating Conditions” in section on the 50-pin Connector Description.
Table 3-12: Reset Signal Electrical Characteristics
ParameterMinMaxUnit
Input Impedance ( R )4.7kilo-ohms
Input Impedance ( C )10nanofarads
Table 3-13: Reset Signal Operating Conditions
ParameterMinMaxCondition
*V
T-
*V
T+
V
OL
V
OH
VT-, VT+ hysteresis level
1.1 V1.2 V
1.7 V1.9 V
0.4 VI
2.0 VI
= -50 microamperes
OL
= -50 microamperes
OH
Flashing LED
The flashing LED signal is used to indicate the working mode of the ModemModule.
Table 3-14 : Flashing LED Pin Description
SignalPin NumberI/OI/O Type*Description
Flashing LED11I/OCMOS/2XWorking mode
indication LED
* See “Table 3-2: Operating Conditions” in section on the 50-pin Connector Description.
Table 3-15 : LED and ModemModule Status
LED IndicationModemModule Status
OFFDownload mode or switched OFF.
PermanentSwitched ON, not registered on the network.ON
FlashSwitched ON, registered on the network.
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide23
Chapter 3 – Electrical Characteristics
General Purpose Input/Output
The ModemModule provides two General Purpose I/O connections. They can be used to control any external
device.
Table 3-16 : General Purpose I/O Pin Description
SignalPin NumberI/OI/O Type*DescriptionDefault Value
GPIO026I/OCMOS / 2XGeneral Purpose I/O0
GPIO47I/OCMOS / 2XGeneral Purpose I/O0
* See “Table 3-2: Operating Conditions” in section on the 50-pin Connector Description.
All digital I/O complies with 3Volts CMOS.
You can access (write or read) the GPIO value via AT+WIOW and AT+WIOR. See AT Command manual for
more details.
Analog to Digital Converter
The ModemModule has an Analog to Digital converter (ADC) input. This converter is a 10 bits one, ranging from
0 to 2.5V. You can see the measurements via AT+ADC. See AT Command manual for more details.
Table 3-17: A/D Converter Pin Description
SignalPin NumberI/OI/O Type*Description
AUXV017IAnalogA/D converter
* See “Table 3-2: Operating Conditions” in section on the 50-pin Connector Description.
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide24
Chapter 3 – Electrical Characteristics
Audio Interface
Two different microphone inputs and two different speaker outputs are supported. The connection can be either
differential or single-ended but using a differential connection in order to reject common mode noise and TDMA
noise is recommended.
Microphone 2 Inputs
The MIC2 inputs are differential ones. They already include the convenient biasing for an electret microphone
(0,5 mA and 2 Volts). This electret microphone can be directly connected on these inputs. The impedance of the
microphone 2 has to be around 2K. These inputs are the standard ones for a handset design while MIC1 inputs
can be connected to an external headset or a hands-free kit.
The gain of MIC2 inputs is internally adjusted. The gain can be tuned from 30dB to 51dB. The connection to the
microphone is direct. The gain can be tuned using the AT+VGR command. See Appendix B: Sourcing Guide forConnectors and Peripheral Devices.
MIC2P
C1 = 22pF to 100 pF
C1
33 pF recommended
MIC2N
Figure 3-8: Microphone 2 Input
C1 has to be the nearest as possible to the microphone. Microphone manufacturers provide this capacitor
directly soldered on the microphone.
Table 3-19: Microphone 2 Input Pin Description
SignalPin NumberI/OI/O Type*Description
MIC2P16IAnalogMicrophone 2 positive input
MIC2N18IAnalogMicrophone 2 negative input
* See “Table 3-2: Operating Conditions” in section on the 50-pin Connector Description.
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide25
Chapter 3 – Electrical Characteristics
Microphone 1 Inputs
The MIC1 inputs are differential and do not include internal bias. To use these inputs with an electret
microphone, bias has to be generated outside the ModemModule according to the characteristic of this electret
microphone. These inputs are the standard ones used for an external headset or a hands-free kit. When using a
single-ended connection, be sure to have a very good ground plane, a very good filtering as well as shielding in
order to avoid any disturbance on the audio path. The gain of MIC1 inputs is internally adjusted. The gain can be
tuned from 30dB to 51dB.
The gain can be tuned using the AT+VGR command.
Differential Connection
Vcc analog power supply
2.8 V
R1
R2
MIC1P
C2
C1
MIC1N
R3
R4
Figure 3-9: Microphone 1 Input
R1 = R4 = from 100 to 330 .
R2 = R3 = usually between 1K and 3.3K as per the
microphone characteristics
C1 = 22pF to 100pF
C2 = 47µF
R1 and R4 are used as a voltage supply filter with C2.
C1 has to be the nearest possible to the microphone. Microphone manufacturers provide this capacitor directly
soldered on the microphone.
Table 3-20: Microphone 1 Input Pin Description
SignalPin NumberI/OI/O Type*Description
MIC1P20IAnalogMicrophone 1 positive input
MIC1N22IAnalogMicrophone 1 negative input
* See “Table 3-2: Operating Conditions” in section on the 50-pin Connector Description.
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide26
Chapter 3 – Electrical Characteristics
Speaker 2 Outputs
Speaker outputs SPK2 are push-pull amplifiers and can be loaded down to 50 Ohms and up to 1nF. These
outputs are differential and the output power can be adjusted by step of 2dB. The output can be directly
connected to a speaker. When using a single-ended connection, be sure to have a very good ground plane, a
very good filtering as well as shielding in order to avoid any disturbance on the audio path.
Differential Connection
SPK2P
SPK2N
Single-Ended Connection
C1
SPK2P
+
Figure 3-10: Speaker 2 Output
C1 = from 100nF to 47µF as per the speaker characteristics and the output power.
Using a single-ended connection also includes losing half of the output power compared to a differential
connection.
Table 3-21: Speaker 2 Output Pin Description
SignalPin NumberI/OI/O Type*Description
SPK2P10OAnalogSpeaker 2 positive output
SPK2N8OAnalogSpeaker 2 negative output
* See “Table 3-2: Operating Conditions” in section on the 50-pin Connector Description.
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide27
Chapter 3 – Electrical Characteristics
Speaker 1 Outputs
Speaker outputs SPK1 are push-pull amplifiers and can be loaded down to 50 Ohms and up to 1nF. These
outputs are differential and the output power can be adjusted by step of 2dB. The output can be directly
connected to a speaker. When using a single-ended connection, be sure to have a very good ground plane, a
very good filtering as well as a shielding in order to avoid any disturbance on the audio path.
Differential Connection
SPK1P
SPK1N
Single-Ended Connection
C1
SPK1P
+
Figure 3-11: Speaker 1 Output
C1 = from 100nF to 47µF as per the speaker characteristics.
Using a single-ended connection also includes losing half of the output power compared to a differential
connection.
Table 3-22: Speaker 1 Output Pin Description
SignalPin NumberI/OI/O Type*Description
SPK1P12OAnalogSpeaker 1 positive output
SPK1N13OAnalogSpeaker 1 negative output
* See “Table 3-2: Operating Conditions” in section on the 50-pin Connector Description.
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide28
Chapter 3 – Electrical Characteristics
SIM interface
The external SIM interface is available through the 50-pin connector in order to use a stand-alone SIM
cardholder. 5V SIMs can be driven using an external level shifter.
SIM line must not exceed 15 cm. See also the “Hardware and RF” section of Chapter 5: ApplicationConsiderations.
Five signals are available:
SIMVCC: SIM power supply.
SIMRST: reset.
SIMCLK: clock.
SIMDATA: I/O port.
SIMPRES1 SIM card detect. This signal is connected to the external SIM connector on pin 8. Pin 4 of SIM
connector must be pulled down to GND with 1 K.
This interface is fully compliant with GSM 11.11 recommendations concerning the SIM functionality.
Transient Voltage Suppressor diodes are internally added on the signals connected to the SIM socket in order to
prevent any Electro-Static Discharge. TVS diodes with low capacitance (less than 10pF) are connected on
SIMCLK and SIMDATA to avoid any disturbance of the rising and falling edge.
Table 3-23: SIM Interface Pin Description
SignalPin NumberI/OI/O Type*Description
SIMCLK45O2XSIM Clock
SIMRST46O2XSIM Reset
SIMDATA49I/OCMOS/2XSIM Data
SIMVCC47OSIM Power Supply
SIMPRES148ICMOSSIM Card Detect
GPO050O2XSIM 3V or 5V
* See “Table 3-2: Operating Conditions” in section on the 50-pin Connector Description.
The SIM schematic appears later in this chapter.
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide29
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide30
Chapter 3 – Electrical Characteristics
GND
SIMVCC
SIMRST
SIMCLK
IK
SIMDATA
SIMPRES1 8
1
VCC
2
RST
3
CLK
CC4
GND
VPP
7
I/O
CC8
Figure 3-12: SIM Socket
SPI Bus
The SPI bus includes a CLK signal, an I/O signal and an EN signal complying with SPI bus standard. The
maximum speed transfer is 3.25Mb/s.
Table 3-26 : SPI Bus Pin Description
SignalPin NumberI/OI/O Type*Description
SPI_CLK44O1XSPI Serial Clock
SPI_IO43I/OCMOS/1XSPI Data
SPI_EO42O1XSPI Enable
* See “Table 3-2: Operating Conditions” in section on the 50-pin Connector Description.
Keypad Interface
This interface provides 10 connections: 5 rows (R0 to R4) and 5 columns (C0 to C4).
The scanning is a digital one, and the de-bouncing is done in the integrated modem. No discrete components
like R, C (Resistor, Capacitor) are needed. It is possible to scan the column and rows using the AT+CMER
command. See AT Command manual for more details.
Table 3-27: Keypad Interface Pin Description
SignalPin NumberI/OI/O Type*Description
ROW039I/OCMOS / 1XRow scan
ROW140I/OCMOS / 1XRow scan
ROW237I/OCMOS / 1XRow scan
ROW338I/OCMOS / 1XRow scan
ROW435I/OCMOS / 1XRow scan
COL036I/OCMOS / 1XColumn scan
COL133I/OCMOS / 1XColumn scan
COL234I/OCMOS / 1XColumn scan
COL331I/OCMOS / 1XColumn scan
COL432I/OCMOS / 1XColumn scan
* See “Table 3-2: Operating Conditions” in section on the 50-pin Connector Description.
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide31
Chapter 4 – Interfaces
This chapter describes the ModemModule interfaces.
· Flashing LED
· SIM Interface
· RF Interface
· DTE/DCE Interface Rates
Flashing LED
The flashing LED signal is used to indicate the working mode of the ModemModule.
LED and ModemModule Status
SignalModemModule Status
OFFDownload mode or switched OFF>
Continuously litSwitched ON (not registered on the network)ON
FlashingSwitched ON (registered on the network)
Chapter 4 – Interfaces
SIM Interface
The internal SIM interface of the SocketModule supports 3V SIMs only.
Note: This interface is fully compliant with GSM 11.11 recommendations concerning the SIM functionality.
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide33
Chapter 5 – Test Board
Serial Test/Demo Board Components
Chapter 5 – Test Board
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide34
Serial Test/Demo Board Block Diagram
Chapter 5 – Test Board
Block Diagram for the ModemModule GSM/GPRS
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide35
SIM Schematic (5V)
Chapter 5 – Test Board
SIM interfac e from
Modem Module .
SIMDA TA
SIMRST
SIMCLK
C_GPO0
2
3
4
47K47K
10K
4.7K
UMC5NT1
1
GND
U4
5
VCC = 2.8V
GND
SIMV CCR230
VIN
SIMPRES1
VIN = 5V
R20, R21, R22 and R23
are used to shunt
LTC1555.
R200
R210
R12100K
R220
R14100K
U6
CLKCIN
215
RIN RST
3
DA TA
4
VCC
VCC
GNDGND
6
7
8
LTC1555
DDRV
VINDV CC
SSM1C1+
M0
GND
C1-
LTC1555 SIM 3V/5V Level shifter.
GND
GND
161
14
I/O
13
125
11
10
9
C28.1uF
GND
R151 K
C432.2 uFR13100K
C3033uF
+
Place C30
near pin
13 of U6.
C172.2 uF
GND
GND
3
2
7
1
6
4
8
5
J2
CLK
RST
I/0
VCC
VPP
CC4
CC8
GND
SIM_6 P
SIM Schematic
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide36
Chapter 6 – Application Considerations
Chapter 6 – Application Considerations
General Guidelines for the Use of the ModemModule
Hardware and RF
· Ground plane: MultiTech recommends having a common ground plane for analog, digital and RF grounds.
· Length of the SIM interface lines (15 cm maximum)
· Bias of the Microphone inputs must be properly adjusted when using audio connectors (mic + speaker) 1.
· EMC protection on audio input/output (filters against 900 MHz)
· ESD protection on serial link, …
· Possible spurious emission radiated by the application to the RF receiver in the receiver band
The Antenna
The antenna sub-system and integration in the application is a major issue. It is a major issue in the choice of the
antenna cable (type, length, performances, thermal resistance, etc.)
These elements could affect GSM performances such as sensitivity and emitted power.
The antenna should be isolated as much as possible from the digital circuitry including the interface signals.
MultiTech recommends shielding the terminal. On terminals including the antenna, a poor shielding could
dramatically affect the sensitivity of the terminal. Subsequently, the power emitted through the antenna could
affect the application.
Firmware Upgrade
The ModemModule firmware is stored in flash memory, and it can easily be upgraded. Contact the factory for
details.
Initial Configuration Using Mobile PhoneTools
For Initial configuration of your wireless device, Multi-Tech offers a Windows-based mobile PhoneTools
application.
To load Mobile PhoneTools, click on the Mobile PhoneTools icon on the system CD and follow the on-screen
prompts.
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide37
Chapter 6 – Application Considerations
Getting Started
Minimum Hardware Interface Required To Get Started
At a minimum, it is necessary to connect the following signals too properly operate the ModemModule:
Table 5-1: Minimum Signals to Operate the ModemModule
Pin NumberNameDescription
1GNDGround
2GNDGround
3+5VPower Supply
4+5VPower Supply
6GNDGround
13CT106/CTSClear to Send
15ON/OFFPower On/Off *
21GNDGround
24GNDGround
25CT103/TXTransmit
28CT104/RXReceive
30CT105/RTSRequest to Send
* Connected to +5V for example
The serial link signals must be used through the implementation of the serial link level shifter. See “Figure 3-3:
Level Shifter Application Diagram for Serial Link.”
Terminal Emulator Setup
Here below is an example based on the Windows TM Hyperterminal application
(terminal emulator program).
Setup:
1. Go to START – PROGRAMS – ACCESSORIES – HYPERTERMINAL.
2. Start the Hyperterminal software.
3. Give the name of your choice, click on the icon of your choice, and click “OK.”
4. Choose these operating parameter values:
Connect using: direct to COM1
Properties: 115200 bps; 8 bits data; no parity; 1 stop bit; hardware flow control.
5. Click “OK.”
Once Hyperterminal is open and configured, it can be used to send AT commands to the ModemModule.
For assistance in testing your ModemModule, see the examples in the AT Command manual for MultiTech’s
GSM/GPRS wireless modem products (GSM/GPRS AT Commands Reference Guide).
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide38
Reference Documents
Table 5-2: GSM ETSI Recommendations for Phase I and Phase II
06.10, 06.11, 06.12, 06.31, 06.32, 07.01, 09.07 and
G 01 v4.2.1
Chapter 6 – Application Considerations
You can find the documents on
ETSI Contacts: ETSI Secretariat
F-06921 Sophia Antipolis cedex, France 06921 Sophia Antipolis cedex, France 06921 Sophia Antipolis cedex,
France 06921 Sophia Antipolis cedex, France
e-mail: secretariat@etsi.fr
http://www.etsi.org
Related Manuals
For information on Multi-Tech modem installation, AT commands, S-Registers, and testing; refer to the
applicable user manual that came with your Multi-Tech modem. Multi-Tech manuals and other resources are on
the Multi-Tech web page at http://www.multitech.com.
For additional Multi-Tech information, contact:
http://www.multitech.com for News, Products, Solutions, Support, Documents and more.
ftp://ftp.multitech.com/ for Modem Firmware, Modem INFs, Manuals, Utilities, etc.
email oemsales@multitech.com for email technical support.
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide39
Chapter 6 – Application Considerations
Additional Information
European Telecommunications Standards Institute (ETSI) - Contact the ETSI at:
650, route des Lucioles
06921 Sophia-Antipolis Cedex
France
Tel: +33 (0)4 92 94 42 00
Fax: +33 (0)4 93 65 47 16
Global Engineering Documents manages a collection of more than one million documents from over 460
organizations worldwide:
http://global.ihs.com
Phone: 800-854-7179
Fax: 303-792-2192
The ITU is the leading publisher of telecommunication technology, regulatory and standard information, with over
4,000 titles in printed form, on CD-ROM and Online at
http://www.itu.int/publications/ .
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide40
Appendix A – Safety Precautions & Regulatory Standards Compliance
Appendix A – Safety Precautions & Regulatory
Standards Compliance
Safety Precautions
IMPORTANT!
FOR THE EFFICIENT AND SAFE OPERATION
OF YOUR GSM INTEGRATED MODEM READ
THIS INFORMATION BEFORE USE.
RF Safety
General
Your ModemModule is based on the GSM standard for cellular technology. The GSM standard is spread all over
the world. It covers Europe, Asia and some parts of America and Africa. This is the most used
telecommunication standard. Your modem is actually a low power radio transmitter and receiver. It sends out
and receives radio frequency energy. When you use your ModemModule integrated modem, the cellular system
that handles your calls controls both the radio frequency and the power level of your cellular modem.
Exposure to RF Energy
There has been some public concern about possible health effects of using GSM modems. Although research on
health effects from RF energy has focused on the current RF technology for many years, scientists have begun
research regarding newer radio technologies, such as GSM. After existing research had been reviewed, and
after compliance to all applicable safety standards had been tested, it has been concluded that the product was
fitted for use. If you are concerned about exposure to RF energy there are things you can do to minimize
exposure. Obviously, limiting the duration of your calls will reduce your exposure to RF energy. In addition, you
can reduce RF exposure by operating your cellular modem efficiently by following the below guidelines.
Efficient Modem Operation
For your modem to operate at the lowest power level, consistent with satisfactory call quality:
·If your modem has an extendible antenna, extend it fully. Some models allow you to place a call with
the antenna retracted. However your modem operates more efficiently with the antenna fully extended.
·Do not hold the antenna when the modem is « IN USE ». Holding the antenna affects call quality and
may cause the modem to operate at a higher power level than needed.
Antenna Care and Replacement
Do not use the modem with a damaged antenna. If a damaged antenna comes into contact with the skin, a minor
burn may result. Replace a damaged antenna immediately. Consult your manual to see if you may change the
antenna yourself. If so, use only a manufacturer-approved antenna. Otherwise, have your antenna repaired by a
qualified technician. Use only the supplied or approved antenna. Unauthorized antennas, modifications or
attachments could damage the modem and may contravene local RF emission regulations or invalidate type
approval.
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide41
Appendix A – Safety Precautions & Regulatory Standards Compliance
General Safety
Driving
Check the laws and the regulations regarding the use of cellular devices in the area where you have to drive as
you always have to comply with them. When using your modem while driving, please: give full attention to
driving, pull off the road and park before making or answering a call if driving conditions so require.
Electronic Devices
Most electronic equipment, for example in hospitals and motor vehicles is shielded from RF energy. However RF
energy may affect some improperly shielded electronic equipment.
Vehicle Electronic Equipment
Check your vehicle manufacturer representative to determine if any on-board electronic equipment is adequately
shielded from RF energy.
Medical Electronic Equipment
Consult the manufacturer of any personal medical devices (such as pacemakers, hearing aids, etc...) to
determine if they are adequately shielded from external RF energy. Turn your modem OFF in health care
facilities when any regulations posted in the area instruct you to do so. Hospitals or health care facilities may be
using RF monitoring equipment.
Aircraft
Turn your modem OFF before boarding any aircraft.
· Use it on the ground only with crew permission.
· Do not use it in the air.
To prevent possible interference with aircraft systems, Federal Aviation Administration (FAA) regulations require
you to have permission from a crewmember to use your modem while the aircraft is on the ground. To prevent
interference with cellular systems, local RF regulations prohibit using your modem while airborne.
Children
Do not allow children to play with your modem. It is not a toy. Children could hurt themselves or others (by
poking themselves or others in the eye with the antenna, for example). Children could damage the modem, or
make calls that increase your modem bills.
Blasting Areas
To avoid interfering with blasting operations, turn your unit OFF when in a « blasting area » or in areas posted: «
turn off two-way radio ». Construction crews often use remote control RF devices to set off explosives.
Potentially Explosive Atmospheres
Turn your modem OFF when in any area with a potentially explosive atmosphere. It is rare, but your modem or
its accessories could generate sparks. Sparks in such areas could cause an explosion or fire resulting in bodily
injuries or even death. Areas with a potentially explosive atmosphere are often, but not always, clearly marked.
They include fueling areas such as petrol stations; below decks on boats; fuel or chemical transfer or storage
facilities; and areas where the air contains chemicals or particles, such as grain, dust, or metal powders. Do not
transport or store flammable gas, liquid, or explosives, in the compartment of your vehicle that contains your
modem or accessories. Before using your modem in a vehicle powered by liquefied petroleum gas (such as
propane or butane) ensure that the vehicle complies with the relevant fire and safety regulations of the country in
which the vehicle is to be used.
Safety Standards
THIS WIRELESS MODEMMODULE COMPLIES WITH ALL APPLICABLE RF SAFETY STANDARDS. This
cellular modem meets the standards and recommendations for the protection of public exposure to RF
electromagnetic energy established by governmental bodies and other qualified organizations, such as the
following:
· Directives of the European Community,
· Directorate General V in Matters of Radio Frequency Electromagnetic Energy
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide42
Appendix A – Safety Precautions & Regulatory Standards Compliance
RF Exposures
Pursuant to 47 CFR § 24.52 of the FCC Rules and Regulations, personal communications services (PCS)
equipment is subject to the radio frequency radiation exposure requirements specified in § 1.1307(b), § 2.1091
and § 2.1093 as appropriate.
The MultiTech ModemModule is a GSM (PCS 1900) terminal which operates in the US licensed PCS frequency
spectrum. The device transmits over the 1850-1910 MHz band and receives over the 1930-1990 MHz Band.
Mult-Tech Systems, Inc. certifies that it has determined that the Modem complies with the RF hazard
requirements applicable to broadband PCS equipment operating under the authority of 47 CFR Part 24, Subpart
E of the FCC Rules and Regulations. This determination is dependent upon installation, operation and use of the
equipment in accordance with all instructions provided.
The Modem is designed for and intends to be used in fixed and mobile applications. "Fixed" means that the
device is physically secured at one location and is not able to be easily moved to another location. "Mobile"
means that the device is designed to be used in other than fixed locations and generally in such a way that a
separation distance of at least 20cm is normally maintained between the transmitter's antenna and the body of
the user or nearby persons. The Modem is not designed for or intends to be used in portable applications (within
20 cm of the body of the user) and such uses are strictly prohibited. To ensure that the unit complies with current
FCC regulations limiting both maximum RF output power and human exposure to radio frequency radiation, a
separation distance of at least 20cm must be maintained between the unit's antenna and the body of the user
and any nearby persons at all times and in all applications and uses. Additionally, in mobile applications,
maximum antenna gain must not exceed 3 dBi (to comply with Section 24.232(b) and is limited to 7 dBi for fixed
applications. Finally, the tune-up procedure for the O9EM2113 ensures that the maximum RF output power of
the device does not exceed 30.0 dBm within the variations that can be expected due to quantity production and
testing on a statistical basis.
Instructions to OEMs
The MultiTech product manual includes specific warnings and cautions in order to ensure that OEMs are aware
of their responsibilities, with regards to RF exposure compliance, for products into which the modem is
integrated. With this guidance, the OEM will be able to incorporate into their documentation the necessary
operating conditions and warnings.
OEMs need to provide a manual with the ‘’final’’ product that clearly states the operating requirements and
conditions and that these must be observed to ensure compliance with current FCC RF exposure requirements /
MPE limits (see the “RF Exposures” section above). This will enable the OEM to generate (and provide the enduser with) the appropriate operating instructions, warnings and cautions, and/or markings for their product.
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide43
Appendix A – Safety Precautions & Regulatory Standards Compliance
Cooking TestThe test continues even after the Cooking Test
Stress TestThermal shocks,
Vibration TestSinusoidal vibration,
Vibration TestRandom vibration,
Shock TestIEC 68-2-27.No performance degradation or mechanical
Bump TestIEC 68-2-29.No performance degradation or mechanical
Humidity TestCorrosion test,
Warehouse
Test
Warehouse
Test
Dust TestMIL-STD-810D,
Light TestUV radiation and
Fall TestIEC 68-2-32.Only minor casing degradation is allowed, with a
Electro Static
Discharge
Test
Salt Mist
Test
Atmosphere
Test
Marking TestEN 60 950After the test, visual inspection on the unit. No
ETSI recommendation
for GSM/DCS
communication
IEC 68-2-14.
IEC 68-2-6.
IEC 68-2-36.
IEC68-2-3.
Low temperature
IEC 68-2-1.
High temperature
IEC 68-2-2.
method 510-3.
temperature EDF
HN60E03.
IEC 100-4-2.No performance degradation allowed after the test.
IEC 68-2-11.After the test, visual inspection on the unit.
Flowing mixed gas
corrosion. IEC 68-2-60.
Full conformity to the recommendation regarding the
main RF parameters.
milestone has been reached.
Full conformity to the recommendation regarding the
main parameters.
No performance degradation or mechanical
degradation is allowed after test.
No performance degradation or mechanical
degradation is allowed after test.
degradation is allowed after test.
degradation is allowed after test.
No visible degradation of the product, both visual and
functional.
The unit is tested at room temperature and must be
fully operative for the main RF parameters.
Under normal conditions (room temperature) after the
test, the unit must behave in full conformity with the
main RF parameters.
Under normal conditions (room temperature) after the
test, the unit must behave in full conformity with the
main RF parameters.
No visible dust in the visible areas. No more than 50
dust particles in the cabinet of the product. The unit,
tested at room temperature, must be fully operative.
Visual inspection on the discoloration and other
degradation effects such as cracks I the material of
the unit after test.
maximum dimension change of 1mm. The unit must
remain fully operative and fully meet specifications for
the main RF parameters.
After the test, visual inspection on the unit and inside.
degradation is allowed on the marking.
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide44
Appendix A – Safety Precautions & Regulatory Standards Compliance
FTA Compliance
The ModemModule has received a Full-Type Approval (according to normal MS requirements) in the
configuration using the internal SIM interface.
IMEI Number
GSM 900/1800:
TAC: 5 000 64
FAC: 11
Serial Numbers: 000000 to 999999
GSM 900/1900:
TAC: 500 100
FAC: 11
Serial Number: 000000 to 999999
GSM/GPRS 900/1800:
TAC: 500161
FAC: 11
Serial Numbers: 000000 to 999999
GSM/GPRS 900/1900:
TAC: 500167
FAC: 11
Serial Number: 000000 to 999999
CE Label
The Wireless ModemModule is CE compliant which implies that the modem is in conformity with the European
Community directives and it bears the CE label.
Carrying out tests:
Electro-magnetic field immunity
EN 61000-4-3
ETS 300-342—1
Radiated emission
EN 55022
ETS 300-342
ESD immunity
EN 61000-4-2
ETS 300-342-1
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide45
Appendix B – Sourcing Guide for Connectors/Peripherals
Appendix B – Sourcing Guide for Connectors and
Peripheral Devices
Where to Find SMD Connectors
The ModemModule matting interface connector is made by SAMTEC France (http://www.samtec.com/).
Many SAMTEC products are available via SAMTEC dealers throughout the world.
Connector data sheets are presented later in this appendix.
Figure B-1: High- and Low-Profile Connectors
SAMTEC Reference Number for
High-Profile Connector:
FLE-125-01-G-DV
Figure B-2: Flexible Flat Cable
Reference Number for Flexible Flat Cable: SD 25 01 N
Figure B-3: Flexible Cable Receptacle
SAMTEC Reference Number for Flex Cable Connector: FTS-125-01-L-DV-A
SAMTEC Reference Number for
Low-Profile Connector:
CLP-125-02-L-D
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide46
Appendix B – Sourcing Guide for Connectors/Peripherals
GSM Antenna
The integrated modem antenna connector is a MMCX connector. The MMCX connector incorporates a 'Snap On'
latching action in order to make the connection easier with an excellent RF performance. An additional
advantage is its small physical size which is 50% of the standard MCX connector.
This type of connector is suitable for the standard ranges of flexible and semi-rigid cables. The characteristic
impedance of the MMCX coaxial connector is 50 ohm. The antenna manufacturer must guarantee that the
antenna will be working according to the radio characteristics presented in the table below.
Table B-1: Radio Characteristics
GSM 850EGSM 900DCS 1800PCS 1900
Frequency
869 to 894 MHz925 to 960 MHz1805 to 1880 MHz 1930 to 990 MHz
RX
Frequency
824 to 849 MHz880 to 915 MHz1710 to 1875 MHz 1850 to 910 MHz
TX
RF Power
Stand
Impedance
VSWR
Typical
2W at 12.5%
duty cycle
2W at 12.5%
duty cycle
1W at 12.5% duty
cycle
50 ohms
<2
0 dBi on azimuth plane
Radiated
Gain
The ModemModule requires an MMCX plug to connect to an antenna.
Figure B-6: MMCX Connector Example (right angle type)
An antenna with matting connector can be ordered, for example, from :
IMS Connectors Systems GMBH
http://www.imscs.com/
1W at 12.5% duty
cycle
A small MMCX / SMA adapter can be ordered, for example, from :
Amphenol
http://www.amphenol.com/
Order No: 908-31100
SIM Card Holder
The SIM card holder used in the integrated modem is a MOLEX connector.
Part number connector: 99228.
Part number holder : 91236.
For more information about this connector:
http://www.molex.com/
It is possible to use a stand-alone SIM cardholder through the 50-pin connector but the length of the SIM line
must not exceed 15 cm.
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide47
Appendix C – AT Command List
Appendix C – AT Command List
For comprehensive information about AT Commands, please read the AT Command Manual.
Table C-1a : AT Command List
General Commands
+CGMIManufacturer Identification
+CGMMRequest Model Identification
+CGMRRequest Revision Identification
+CGSNProduct Serial Number
+CSCSSelect TE Character Set
+CIMIRequest IMSI
+CCIDCard Identification
+GCAPCapabilities List
A/Repeat Last Command
+CPOFPower Off
+CFUNSet Phone Functionality
+CPASPhone Activity Status
+CMEEReport Mobile Equipment Errors
+CKPDKeypad Control
+CCLKClock management
+CALAAlarm management
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide48
Table C-1b : AT Command List (cont’d)
Call Control Commands
DDial command
HHang-up Command
AAnswer a Call
+CEERExtended Error Report
+VTD, +VTSDTMF Signals
ATDLRedial Last Telephone Number
AT%DnAutomatic Dialing (or SMS send) with DTR
ATSOAutomatic Answer
+CICBIncoming Call Bearer
+VGR, +VGTGain Control
+CMUTMicrophone Mute Control
+SPEAKERSpeaker and Microphone Selection
+ECHOEcho Cancellation
+SIDETSide Tone Modification
+VIPInitialize Voice Parameters
+CSNSSingle Numbering Scheme
Appendix C – AT Command List
Network Service Commands
+CSQSignal Quality
+COPSOperator Selection
+CREGNetwork Registration
+WOPNRead Operator Name
+CPOLPreferred Operator List
Security Commands
+CPINEnter PIN
+CPIN2Enter PIN2
+CPINCPIN Remaining Attempt Number
+CLCKFacility Lock
+CPWDChange Password
Phone Book Commands
+CPBSSelect Phone Book Memory Storage
+CPBRRead Phone Book Entries
+CPBFFind Phone Book Entries
+CPBWWhite Phone Book Entry
+CPBPPhone Book Phone Search
+CPBNMove Action in Phone Book
+CNUMSubscriber Number
+WAIPAvoid Phone Book Init
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide49
Table C-1c: AT Command List (cont’d)
Short Message Commands
+CSMSSelect Message Service
+CNMANew Message Acknowledgement
+CPMSPreferred Message Storage
+CMGFPreferred Message Format
+CSASSave Settings
+CRESRestore Settings
+CSDHShow Text Mode parameters
+CNMINew Message Indication
+CMGRRead Message
+CMGLList Message
+CMGSSend Message
+CMGWWrite Message to Memory
+CMSSSend Message from Storage
+CSMPSet Text Mode Parameters
+CMGDDelete Message
+CSCAService Center Address
+CSCBSelect Cell Broadcast Message Types
+WCBMCell Broadcast Message Identifiers
+WMSCMessage Status Modification
+WMGOMessage Overwriting
Supplementary Services Commands
Appendix C – AT Command List
+CCFCCall Forwarding
+CLCKCall Barring
+CPWDModify SS Password
+CCWACall Waiting
+CLIRCalling Line Identification Restriction
+CLIPCalling Line Identification Presentation
+COLPConnected Line Identification Presentation
+CAOCAdvice Of Charge
+CACMAccumulated Call Meter
+CAMMAccumulated Call Meter Maximum
+CPUCPrice Per Unit and Currency Table
+CHLDCall Related Supplementary Services
+CLCCList Current Calls
+CSSNSupplementary Service Notifications
+CUSDUnstructured Supplementary Service Data
+CCUGClosed User Group
Data Commands
+CBSTBearer Type Selection
+FCLASSSelect Mode
+CRService Reporting Control
+CRCCellular Result Codes
+ILRRDTE-DCE Local Rate Reporting
+CRLPRadio Link Protocol Parameters
+DOPTOthers Radio Link Parameters
%CSelect Data Compression
+DSV42 bis Data Compression
+DRV42 bis Data Compression Report
\NSelect Data Error Correcting Mode
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide50
+FDTTransmit Data
+FDRReceive Data
+FETTransmit Page Punctuation
+FPTSPage Transfer Status Parameters
+FKTerminate Session
+FBORPage Transfer Bit Order
+FBUFBuffer Size Report
+FCQCopy Quality Checking
+FCRCapability to Receive
+FDISCurrent Sessions Parameters
+FDCCDCE Capabilities Parameters
+FLIDLocal ID String
+FPHCTOPage Transfer Timeout Parameter
V24 - V25 Commands
Appendix C – AT Command List
+IPRFixed DTE Rate
+ICFDTE-DCE Character Framing
+IFCDTE-DCE Local Flow Control
&CSet DCD Signal
&DSet DTR Signal
&SSet DSR Signal
OBack to Online Mode
QResult Code Suppression
VDCE Response Format
ZDefault Configuration
&WSave Configuration
&TAuto-Tests
EEcho
&FRestore Factory Settings
&VDisplay Configuration
IRequest Identification Information
SIM Toolkit Commands
+STSFSIM Toolkit Set Facilities
+STINSIM Toolkit Indication
+STGISIM Toolkit Get Information
+STCRSIM Toolkit Control Response
+STGRSIM Toolkit Give Response
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide51
Table C-1e: AT Command List (cont’d)
Specific AT Commands
+CCEDCell Environment Description
+CCEDAutomatic RxLev Indication
+WINDGeneral Indications
+ADCAnalog Digital Converters Measurements
+CMERMobile Equipment Event Reporting
+WLPRRead Language Preference
+WLPWWrite Language Preference
+WIORRead GPIO Value
+WIOWWrite GPIO Value
+WACAbort Command
+WTONEPlay Tone
+WDTMFPlay DTMF Tone
+WDWLMultiTech Downloading
+WVRMultiTech Voice Rate
+WDRData Rate
+WHWVHardware Version
+WDOPDate Of Production
+WSVGMultiTech Select Voice Gain
+WSTRMultiTech Status Request
+WSCANMultiTech Scan
+WRIMRing Indicator Mode
+W32KPower saving mode
Appendix C – AT Command List
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide52
Appendix D – Acronyms and Abbreviations
Appendix D – Acronyms and Abbreviations
ADC : Analog Digital Converter
ASIC : Application Specific Integrated Circuit
BCCH : Broadcast Control Channel
CE : Communauté Européenne
CLK : Clock
CTS : Clear To send
dB : decibel
DCD : Data Carrier Detect
DCE : Data Circuit Terminating Equipment
DSR : Data Set Ready
DTE : Data Terminal Equipment
DTR : Data Terminated Ready
EFR : Enhanced Full Rate
E-GSM : Extended- GSM
EMC : Electromagnetic Conformity
EN : Enable
ETSI : European Telecommunications Standards Institute
FAC : Final Assembly Code
FR : Full-Rate
FTA : Full Type Approval
GND : Ground
GPIO : General Purpose Input Output
GPRS : General Packet Radio Service
GSM : Global System for Mobile Communication
HR : Half-Rate
IMEI : International Mobile Equipment Identity
MO : Mobile Originated
MT : Mobile Terminated
OEM : Original Equipment Manufacturer
PDA : Personal Digital Assistant
PCB : Printed Circuit Board
PRES : Presence
RI : Ring Indicator
RTS : Request To Send
SIM : Subscriber Identity Module
SMD : Surface Mounted Design
SMS : Short Message Service
TAC : Type Approval Code
TDMA : Time Code Multiple Access
TE : Terminal Equipment
VSWR : Voltage Standing Wave Ratio
WAP : Wireless Application Protoc
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide53