This section describes the wiring and the functionality for terminals used for serial communication
| Terminal number | Description |
|---|---|
| 3 | RS232 Transmit (not isolated) |
| 4 | RS232 Receive (not isolated) |
| 5 | RS232 Ground (not isolated) |
| 6 | RS485 Channel A / D- (not isolated) |
| 7 | RS485 Channel B / D+ (not isolated) |
| 8 | RS485 Ground (not isolated) |