Supply Power Terminal Block - Johnson Controls IOM3711 Installation Instructions Manual

Figure 4: FC Bus Terminal Block Wiring
When connecting the IOM to an SA bus, wire the bus
terminal block plugs on the expansion module, and other
SA bus devices in a daisy-chain configuration using 4-wire
twisted, shielded cable as shown in
3 for more information.
Figure 5: SA Bus Terminal Block Wiring
Note: The SA PWR/SHLD terminal does not supply 15
VDC. The SA PWR/SHLD terminal is isolated and
can be used to connect (daisy chain) the 15 VDC
power leads on the SA bus
shields on the FC bus
supervisor supplies 15 VDC to devices on the SA
bus requiring power.
IOM3711 Input/Output Module Installation Instructions
Figure 5. See Table
(Figure 5) or the cable
(Figure 4). The SA bus
SA/FC Bus Port
The SA/FC bus port on the front of the expansion module
is an RJ-12, 6-position modular jack that provides a
connection for devices on the SA bus.
The SA/FC bus port is connected internally to the SA/FC
bus terminal block. See
The SA/FC bus port pin assignment is shown in
6.
Figure 6: Pin Number Assignments for Sensor, SA
Bus and FC Bus Ports on Expansion Modules

Supply Power Terminal Block

The 24 VAC supply power terminal block is a gray,
removable, 3-terminal plug that fits into a board-mounted
jack on the top right of the expansion module.
Wire the 24 VAC supply power wires from the transformer
to the HOT and COM terminals on the terminal plug as
shown in Figure 7. The middle terminal on the supply
power terminal block is not used. See
information about the Supply Terminal Block.
Table 5 for more information.
Table 5 for more
Figure
5