SA Bus terminal block
The SA Bus terminal block is an orange, removable, 4-pin
terminal block that fits into a board-mounted pin header.
When connecting an SA Bus device to the controller, wire
the SA Bus terminal block on the controller and other SA
Bus devices in a daisy-chain configuration using 4-wire
twisted, shielded cable as shown in Figure 7. See Terminal
wiring guidelines, functions, ratings, and requirements
for more information about communication bus terminal
block functions, ratings, and requirements.
Figure 7: SA Bus Terminal Block Wiring
Note: The POWER terminal supplies 15 VDC. The
POWER terminal can be used to connect (daisy
chain) the 15 VDC power leads on the SA Bus.
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.
Note: The CGM/CGE controller is the EOL for the SA
Bus.
FC Bus port on CGM controllers
The FC Bus port on the front of the CGM controller is an
RJ-12, 6-position modular jack that provides a connection
for the Mobile Access Portal (MAP) Gateway, or the ZFR
Pro Wireless Field Bus Router.
The FC Bus port is connected internally to the FC bus
terminal block. See Table 5 for more information
about communication bus port functions, ratings, and
requirements. The FC Bus port pin assignment is shown in
Figure 8.
Figure 8: Pin number assignments for FC Bus and SA
Bus ports on equipment controllers
Sensor (SA Bus) port
The SA Bus port is an RJ-12, 6-position modular jack
that provides a connection for the MAP Gateway, the
VAV Balancing Tool, the DLK0350, FX-DIS1710 local
controller display, specified network sensors, or other
SA Bus devices with RJ-12 plugs. When the controller is
configured for N2 network communication, you must
download and commission the controller using the SA Bus
port.
The Sensor port is connected internally to the SA
Bus terminal block. See Table 5 for more information
about communication bus port functions, ratings, and
requirements. The SA Bus port pin assignment is shown in
Figure 8.
Supply power terminal block
The 24 VAC supply power terminal block is a gray,
removable, 2-pin terminal block that fits into a board-
mounted pin header on the top right of the controller.
Wire the 24 VAC supply power wires from the transformer
to the HOT and COM terminals on the terminal plug as
shown in Figure 9. For more information about the Supply
Power Terminal Block, see Table 5.
Figure 9: 24 VAC supply power terminal block wiring
Note: The order of the HOT and COM terminals on
the CG series controllers is reversed from the order
of the terminals on the CV series controllers.
F4-CG Series General Purpose Application Controllers Installation Guide6