User's Manual

Specifications
The following is a summary of the RIM 902M OEM radio modem
specifications.
Power supply & typical current usage
x
Single power supply; operating range: 4.1 to 4.75V DC
x
Single 3.0V logic line to turn on/off
x
Typical off current consumption: less than 10
P
A
x
Battery save stand-by mode: 0.2 mA (at 4.5V)
x
Receive / express stand-by mode: 57 mA (at 4.5V)
x
Transmit mode: up to 1.7A (at 4.5V, output 2.0W)
x
Average current usage: 20 mA (at 4.5V, based upon 94% standby, 5% receive, 1%
transmit)
RF properties
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Transmit frequency: 896 to 902M MHz
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2.0 W nominal maximum transmit power at antenna port
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Transmitter can reduce output power to 0.06 Watts (-15 dB) when it is close to the
base station, to balance radio link
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Receive frequency: 935 to 941 MHz
x
Receive sensitivity: -118 dBm at 0.01 bit error rate (BER)
x
8000 bps 0.3 BT GMSK
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FCC Parts 15 & 90
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Industry Canada RSS 122
Serial communications
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3.0V asynchronous serial port
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7 bit with parity (MASC) or 8 with no parity (RAP)
x
Link speed: 9600 bps
x
Link level protocols:
i
Radio Access Protocol (RAP)
i
Mobitex Asynchronous Communication (MASC)