SIM908 EVB kit User Guide
Contents
Contents ............................................................................................................................................3
Ver si on Hi st or y .................................................................................................................................5
1 Overview........................................................................................................................................6
2 EVB accessory ...............................................................................................................................8
3 Accessory interface ........................................................................................................................9
3.1 Power interface.....................................................................................................................9
3.2 Audio interface ...................................................................................................................10
3.3 SIM card interface..............................................................................................................11
3.4 Antenna interface ...............................................................................................................12
3.4.1 GSM antenna interface.............................................................................................12
3.4.2 GPS antenna interface ..............................................................................................13
3.5 RS232 interface..................................................................................................................14
3.6 Operating status LED.........................................................................................................15
3.6.1 GSM part ..................................................................................................................15
3.6.2 Debug indicator ........................................................................................................16
4 Test interface ................................................................................................................................16
4.1 GSM serial ports ................................................................................................................17
4.2 LCD & ADC ......................................................................................................................18
4.3 GPS serial ports and power ................................................................................................19
5 EVB and accessory equipment.....................................................................................................20
6 Illustration....................................................................................................................................21
6.1 GSM part............................................................................................................................21
6.1.1 Running ....................................................................................................................21
6.1.2 Connecting Net and calling ......................................................................................21
6.1.3 Downloading ............................................................................................................24
6.1.4 Turn off.....................................................................................................................25
6.1.5 Charging ...................................................................................................................25
6.2 GPS part .............................................................................................................................25
6.2.1 Running: ...................................................................................................................25
6.2.2 Position fixed............................................................................................................27
6.2.3 TTFF Test .................................................................................................................28
6.2.4 Turn off and Reset ....................................................................................................29
SIM908_EVB kit_ User Guide _V1.00 2011.8.15
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