The zone bus terminal block is a gray, removable, 4-terminal plug that fits only into the black, board-mounted, zone bus jack. Wire the removable zone bus terminal block plugs on the ZEC510 and other zone bus controllers in a daisy-chain configuration using 3-wire twisted, shielded cable, as shown in Figure 1 and Figure 2.
|Terminating device on the zone bus
|Zone bus terminal block plug on the terminating device
|Daisy-chained device on a zone bus segment
|Zone bus terminal block plug on the daisy-chained device
|Cable shield connection
|Connects to the next device on the zone bus. Connects to all ZECs and the zoning roof top unit (RTU) of the VZC100.