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12-34-0000 RELAY OUTPUT EXPANSION MODULE
Product Manual
Sea Air and land Communications Ltd, 10 Vanadium Place, Addington, Christchurch 8024, New Zealand
April 2018
Installation and Connections
The power supply is connected via the green power connector to +13.8 Volts and Ground. The
supply input is protected against reversed connection.
Figure 1. Pin numbering: Looking into the sockets, pin 1 is on the left
S1
–
Serial Port One
S2 - Serial Port Two
Pin
Description
Pin
Description
1
Ground
1
Ground
2
Not Used
2
Not Used
3
Not Used
3
Not Used
4
Not Used
4
Not Used
5
RS232 Rx
5
RS232 Tx
6
RS232 Tx
6
RS232 Rx
Figure 2. Pin outputs for relay connectors.