| Terminal | Function | Notes |
|---|---|---|
| + | RS-485 + | Wire size: 0.2–1.5 mm2, (32–16 AWG), solid wires or ferrules recommended. |
| - | RS-485 - | |
| C | RS-485 common |
| Terminal | Function | Notes |
|---|---|---|
 |
NO: relay normally open | Wire size: 0.2–1.5 mm2, (32–16 AWG), solid wires or ferrules recommended. |
| COM: relay common | ||
| NC: relay normally closed |
| Terminal | Function | Notes |
|---|---|---|
| Power supply ground | Can also be used for grounding the transmitter. | |
| 24 V - | Negative supply voltage | 15–30 V DC or 24 V AC ±10 % 50/60 Hz |
| 24 V + | Positive supply voltage |