User Guide

TRM 900 Intergrator’s Guide
9
Interface Port Pin Out
The standard TRM 900 transceiver comprises a 30-pin port for power, data and interfacing with
other electronic devices.
30 Pin TRM 900 Board
The following signals are available on the 30-pin connector:
Pin Name Description
1 GND GROUND FOR SIGNAL AND POWER
2 DO NOT USE FACTORY USE ONLY, NO CONNECTION
3 TX TX DATA, DTE SERIAL PORT, 3V CMOS (3.3V COMPATIBLE)
4 DO NOT USE FACTORY USE ONLY, PLEASE NO CONNECTION
5 GND GROUND FOR SIGNAL AND POWER
6 DO NOT USE FACTORY USE ONLY, PLEASE LEAVE NO CONNECTION