- All ETC-12 trip units are supplied with full MODBUS communications capability.
- Accessing the communication features requires the purchase of an auxiliary cable and terminal block.
- The ETC-12 can be addressed by any third party software that is capable of communicating with a MODBUS device. A full list of addresses and registers are available.
- Communications features receives all of its required power from the current sensors monitoring the bus. Additional PT’s or control power is not needed.
- Communications interface specifications are as follows:
| Protocol | MODBUS RTU |
| Physical Network | RS-485 |
| Baud Rate | 9600 |
| Data Bits | 8 |
| Stop Bits | 2 |
| Parity | None |