User's Manual

Contents
Contents ............................................................................................................................................2
1. SIM548Z EVB Schematic .............................................................................................................3
2. SIM548Z EVB overview...............................................................................................................3
3. EVB Accessory .............................................................................................................................5
4. EVB Interface ...............................................................................................................................6
4.1 Power interface ...................................................................................................................6
4.2 SIM card interface...............................................................................................................7
4.3 RS232 interface...................................................................................................................7
4.4 Antenna interface ................................................................................................................8
4.5 Audio interface....................................................................................................................9
5. EVB and accessory equipment....................................................................................................10
6. Operation.....................................................................................................................................10
6.1 Power on and running .......................................................................................................10
6.2 Connecting the Net and calling ......................................................................................... 11
6.3 Download and upgrade ..................................................................................................... 11
6.4 Turn off ............................................................................................................................. 11
6.5 Charge ............................................................................................................................... 11
6.6 GPRS start-up ...................................................................................................................11
7 AT command ................................................................................................................................11
8 FCC statements ............................................................................................................................12
9 FCC RF exposure requirements...................................................................................................12
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