SIM900 EVB User Guide
SIM900-EVB_UGD_V1.01
3
08.12.2009
Contents
Contents ............................................................................................................................................3
Version History .................................................................................................................................3
1. SIM900 EVB.................................................................................................................................5
2. EVB accessory ..............................................................................................................................7
3. Accessory Interface .......................................................................................................................8
3.1 Power Interface ...................................................................................................................8
3.2 Audio Interface....................................................................................................................9
3.3 SIM card interface.............................................................................................................10
3.4 Antenna Interface .............................................................................................................. 11
3.5 RS232 Interface.................................................................................................................12
3.6 Operating Status LED .......................................................................................................13
4. Test Interface...............................................................................................................................14
4.1 J103 ...................................................................................................................................14
4.2 J201 ...................................................................................................................................15
4.3 J104 ...................................................................................................................................16
5. EVB and accessory equipment....................................................................................................18
6. Illustration: ..................................................................................................................................19
6.1 Running:............................................................................................................................19
6.2 Connecting Net and calling ...............................................................................................19
6.3 Downloading.....................................................................................................................19
6.4 Turns off ............................................................................................................................19
Figure Index
FIGURE 1: EVB TOP VIEW ................................................................................................................... 5
FIGURE 2: EVB BOTTOM VIEW.......................................................................................................... 6
FIGURE 3: EVB ACCESSORY............................................................................................................... 7
FIGURE 4: POWER INTERFACE .......................................................................................................... 8
FIGURE 5: AUDIO INTERFACE ........................................................................................................... 9
FIGURE 6: SIM CARD INTERFACE................................................................................................... 10
FIGURE 7: ANTENNA INTERFACE ................................................................................................... 11
FIGURE 8: SERIAL PORTS.................................................................................................................. 12
FIGURE 9: STATUSLED ...................................................................................................................... 13
FIGURE 10: TEST INTERFACE OVERVIEW..................................................................................... 14
FIGURE 11: J103 INTERFACE............................................................................................................. 14
FIGURE 12: J201 INTERFACE ............................................................................................................ 15
FIGURE 13: J104 INTERFACE ............................................................................................................ 16
FIGURE 14: EVB AND ACCESSORY EQUIPMENT ......................................................................... 18
