Note: The Verasys System zone bus is equivalent to the ZEC310/BYP200 controller zone bus.
The zone bus terminal block is a gray, removable, 4-terminal plug with +15 VDC that fits into a board-mounted, zone bus jack. Wire the removable zone bus terminal block plugs on the ZEC and other zone bus controllers in a daisy-chain configuration using a 3-wire twisted, shielded cable, as shown in the following figures.
Figure 1. Zone bus terminal block wiring
Figure 2. Zone bus daisy chaining configuration
| Callout | Description |
|---|---|
|
1 |
Terminating device on the zone bus |
|
2 |
Zone bus terminal block plug on the terminating device |
|
3 |
Daisy-chained device on a zone bus segment |
|
4 |
Zone bus terminal block plug on the daisy-chained device |
|
5 |
Cable shield connection |
|
6 |
Connects to the next device on the zone bus. Connects to all ZECs and to the zoning roof top unit (RTU) port of the VZC100. |