8 RIM OEM Radio Modem for GSM/GPRS Wireless Networks
CHAPTER 4 Integrating the RIM OEM Radio Modem .....................................................37
Overview ...........................................................................................................38
Mounting methods...........................................................................................39
Bolts or standoffs ......................................................................................39
Tie wraps ...................................................................................................40
Permanent industrial adhesive...............................................................41
Cables and connectors .....................................................................................41
Radio interface cable and connector......................................................41
SIM interface cable and connector .........................................................42
Antenna cable and connectors................................................................42
CHAPTER 5 Power requirements .....................................................................................45
Load specifications ...........................................................................................46
Power supply parameters .......................................................................46
Ripple specification ..................................................................................46
Power requirements .........................................................................................47
Batteries......................................................................................................47
Plug-in supplies ........................................................................................48
Automotive supplies................................................................................48
CHAPTER 6 Interface specification ..................................................................................49
RIM 1902G or RIM 1802G interface ...............................................................50
AT Commands..................................................................................................50
SIM interface pins.............................................................................................51
Radio interface pins..........................................................................................52
Pins 1 to 4...................................................................................................52
Pins 5 to 22.................................................................................................52
Serial port...................................................................................................52
Pin descriptions ........................................................................................53
Turning on and turning off the radio ............................................................57
Turning on the radio ................................................................................57
Turning off the radio................................................................................57
Resetting the radio....................................................................................58
Loading firmware (optional) ..........................................................................58
