WM_PRJ_M13_UGD_001 - 001
20th July 2004
© 2004
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Wavecom Confidential & Proprietary Information
Page: 5 / 55
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without prior written agreement.
5
Using the modem ........................................................................ 22
5.1
Getting started with the modem........................................................... 22
5.1.1
Mounting the modem ................................................................... 22
5.1.2
Setting up the modem .................................................................. 22
5.1.3
Checking the communication with the modem ............................. 23
5.1.4
Resetting the modem.................................................................... 23
5.2
Specific recommendations when using the modem on trucks .............. 24
5.2.1
Technical constraints on trucks..................................................... 24
5.2.2
Recommended Power Supply connection on trucks...................... 25
5.3
Operational status of the modem.......................................................... 26
5.4
Echo function disabled.......................................................................... 26
5.5
Verifying the received signal strength ................................................... 27
5.6
Checking the pin code status................................................................ 28
5.7
Verifying the network registration of the modem .................................. 28
5.8
Main AT commands for the modem ..................................................... 29
5.9
Firmware upgrade procedure................................................................ 30
6
Troubleshooting.......................................................................... 31
6.1
No communication with the modem through the serial link .................. 31
6.2
Receiving “ERROR” message................................................................ 32
6.3
Receiving “NO CARRIER” message....................................................... 32
7
Functional description ................................................................ 35
7.1
Architecture.......................................................................................... 35
7.2
Power supply........................................................................................ 36
7.2.1
General presentation ..................................................................... 36
7.2.2
Protections.................................................................................... 36
7.3
RS232 serial link ................................................................................... 37
7.3.1
General presentation ..................................................................... 37
7.3.2
Green idle power saving mode...................................................... 38
7.3.3
Autoshutdown facility................................................................... 38
7.3.4
Autobauding mode ....................................................................... 38
7.3.5
Pin description .............................................................................. 38
7.4
General Purpose Input/Output (GPIO) ................................................... 39
7.5
BOOT ................................................................................................... 39
7.6
RESET................................................................................................... 40
7.6.1
General presentation ..................................................................... 40
7.6.2
Reset sequence............................................................................. 41
7.7
Audio.................................................................................................... 42
7.7.1
Microphone inputs........................................................................ 42
7.7.2
Speaker outputs............................................................................ 42
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