User's Manual

Getting started – How to connect the test board 11
RIM 902M OEM Radio Modem – Integrator’s Guide
operate the radio. The voltage is converted into the necessary levels by the
power supply section on the test board.
LED indicators
The test board includes several LED indicators designed to indicate the flow of
data to and from the host (in real time), the radio power status, power to the test
board, and more.
How to connect the test board
Now that you are familiar with the components and functions of the test board,
you are ready to connect the RIM 902M radio modem to an antenna and to a
PC (or some other computing device with an RS-232 serial interface). To do
this, you will use the test board and cables supplied with your RIM 902M
Developer’s Kit.
1. Flat serial cable (test board to radio)
The flat serial interface cable carries data between the test board and the
RIM 902M. Control and status signals such as TURNON are also carried on
this cable. Use this cable to connect the RIM 902M’s serial connector to the test
board.
This cable also carries clean, regulated power to the RIM 902M.
When inserting the cable, ensure that the side with the bare pins are in direct
contact with the pin side of the connector.
2. DB-9 serial cable (test board to PC)
Connect the male end of the straight-through DB-9 serial cable to the test
board.
Connect the female end of the cable to your PC’s COM port.