The sensor bus terminal block is a brown, removable, 4-terminal plug that fits only into the brown, board-mounted sensor bus jack. Wire the removable sensor bus terminal block plugs on the ZEC510 and other field devices in a daisy-chain configuration using 4-wire twisted, shielded cable as shown in Figure 1 and Figure 2.
Figure 1. Sensor bus terminal block wiring
Figure 2. Sensor bus daisy chaining configuration
| 1 | Terminating device on the sensor bus |
| 2 | Sensor bus terminal block plug on the terminating device |
| 3 | Daisy-chained device on a sensor bus segment |
| 4 | Sensor bus terminal block plug on the daisy-chained device |
| 5 | Cable shield connection |
| 6 | Connects to the next device on the sensor bus. Connects to the NS-xxxx sensors. See the Accessories section for a list of the NS-xxxx sensors. |