Specifications
Telit GM862-PCS/-GPRS/-GSM Product Description
1vv0300604, Rev. ISSUE#14 - 22/01/04
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2.13 Logic level specifications............................................................................................................................................ 22
2.13.1 Reset signal.................................................................................................................................................................23
2.14 Audio levels specifications .........................................................................................................................................25
2.15 Interface connectors on GM862-GPRS..................................................................................................................26
2.16 Mounting the GM862-GPRS on your Board........................................................................................................31
2.16.1 Antenna Coaxial cable fixing...................................................................................................................................31
2.16.2 Precautions..................................................................................................................................................................32
3 APPLICATION BOARD: GM862-S1...................................................................................33
3.1 Application Board Description...................................................................................................................................... 33
4 EVALUATION KIT: GM862/S1 EVK...................................................................................34
4.1 Evaluation Kit description.............................................................................................................................................. 35
4.1.1 Power Supply..............................................................................................................................................................35
4.1.2 Serial interface............................................................................................................................................................36
4.1.3 Audio ...........................................................................................................................................................................36
4.1.4 GPIO and Leds...........................................................................................................................................................36
4.1.4.1 Telit GM862-GPRS module interface connector..................................................................................................36
5 SERVICE AND FIRMWARE UPDATE ...............................................................................38
5.1.1.1 Step-by-Step upgrade procedure........................................................................................................................38
6 AT COMMAND........................................................................................................................40
6.1 Definitions............................................................................................................................................................................40
6.2 AT Command Syntax.......................................................................................................................................................41
6.2.1 Command lines...........................................................................................................................................................41
6.2.2 Information responses and result codes .................................................................................................................42
6.2.3 Command Response Timeout..................................................................................................................................42
6.2.4 Command issuing timing..........................................................................................................................................45
6.2.5 Factory Profile and parameters stored in the profile ............................................................................................45
6.3 Command Availability Table......................................................................................................................................... 46
6.4 Hayes Compliant AT Commands ................................................................................................................................. 52
6.4.1 Generic Modem Control...........................................................................................................................................52
6.4.1.1 &F - restore factory configuration.....................................................................................................................52
6.4.1.2 Z - soft reset...........................................................................................................................................................52
6.4.1.3 +FCLASS - select active service class .............................................................................................................53
6.4.1.4 &Y - designate a default reset profile ...............................................................................................................53
6.4.1.5 &W - store current configuration.......................................................................................................................54
6.4.1.6 &Z - store telephone number in the Telit GM862-GPRS module internal phonebook.................................54
6.4.1.7 &N - display internal phonebook stored numbers ..........................................................................................55
6.4.1.8 +GMI - request manufacturer identification....................................................................................................55
6.4.1.9 +GMM - request model identification ..............................................................................................................55
6.4.1.10 +GMR - request revision identification.......................................................................................................56
6.4.1.11 +GCAP - request capabilities list.................................................................................................................56