User's Manual

RF-Smart – User Manual Rev 1.1 – 12/11/2019

3.6 AUX A Interface

The AUX interface provides via Male 6-pole plug connector, the following options:

• Power control pin – To be use with internal PMW for 125khz transmitter

• GPS PPS – direct output of PPS for Time stamp

• TX AUX and RX AUX of the Modem

• Ground pin, VIN pin to supply to external board (after input diode and spick suppressor)

3.6 AUX B Interface

The AUX interface provides via Male 6-pole plug connector, the following options:

• 2 digital inputs opto couplers, input 0-55vdc.

• 2 outputs opto couplers, drive up to 100ma, external diode needed when driving a relay.

• 1 ADC (10 bit) input 0-55v.

• 1 Ground pin.

3 2 1

6 5 4

Pin assignment

1. POWER CONTROL / GPO

2. GPS PPS/Analog Input

3. VIN

4. RX AUX MODEM/I2C

5. TX AUX MODEM/I2C

6. GND

Male 6-pole plug.

To use with MOLEX MICRO FIT

PART NUMBER 43025-0600.

3 2 1

6 5 4

4 3 2 1

5 6 7 8

Pin assignment

1. POWER 4V

2. RELAY A

3. RELAY B

4. GND MAIN

5. INPUT A OPTOCOUPLER

6. INPUT B OPTOCOUPLER

7. OPEN COLLECTOR

8. GND OPTOCOUPLER

Male 8-pole plug.

To use with MOLEX MICRO FIT

PART NUMBER 43025-0800.

4 3 2 1

5 6 7