SA bus terminal block
The SA Bus terminal block is a brown, removable, 4-terminal plug with +15 VDC that fits into a
board-mounted jack. Wire the removable SA Bus terminal block plugs on the FX-PCV and other SA
Bus devices in a daisy-chain configuration using 4-wire twisted, shielded cable as shown in Figure 4.
See Table 5 for more information.
Figure 4: SA bus terminal block wiring
Modular ports
The modular and FC Bus ports on the face of the FX-PCV (Figure 2) are RJ-12 (6-position) modular
jacks as shown in Figure 5.
Figure 5: Pin number assignments for sensor (SA bus and
FC bus) ports on FX-PCV1615/1626/1628/1630 Controllers
The modular SA Bus port provides a connection for the Bluetooth Commissioning Converter (FX-
BTCVT), FX-ATV7003 VAV Balancing Tool, FX-DIS1710 Local Controller Display, FX-WRZ78xx Series
One-to-One Wireless Transmitter, and NS Series sensors. The modular FC Bus port provides a
connection for the Bluetooth Commissioning Converter and the FX-ZFR Wireless Router.
Note: Do not use the modular SA Bus port and the terminal block SA Bus simultaneously. Only
use one of these connections at a time.
FX-PCV1615/1626/1628/1630 Programmable VAV Box Controllers Installation Instructions8
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