Tracker Reference

5VIN - Regulated 5v input. Be sure to connect to REGOUT if you are not using an external 5v voltage regulator.

RXD - Data from GPS or PC. Connect to pin 2 on Null Modem Cable.

AOUT - Audio to Radio.

REGIN - 6.5v to 28v into regulator.

PTT - connect to Push-To-Talk line on radio.

ADC1 - Analog input. Use with Temperature Sensor.

ADC2 - Analog input. Use with Temperature Sensor.

TXD - Data to GPS or PC. Connect to pin 3 on Null Modem Cable.