Input And Output Terminal Blocks; Fc Bus Terminal Block; Sa Bus Terminal Block - Johnson Controls FX-PCA3611 Installation Instructions Manual

Input and Output terminal blocks

The fixed input terminal blocks are located on the bottom of the controller, and the output terminal
blocks are located on the top of the controller. See Table 3 for more information about I/O terminal
functions, requirements, and ratings.

FC bus terminal block

The FC Bus terminal block is a blue, removable, 4-terminal plug that fits into a board-mounted jack.
Wire the removable FC bus terminal block plugs on the controller, and other controllers in a daisy-
chain configuration using 3-wire twisted, shielded cable as shown in Figure 4. For more information
about the FC Bus terminal function, requirements, and ratings, see Table 5.
Note: The FC bus Shield (SHLD) terminal is isolated and can be used to connect (daisy chain)
the shields for FC bus wiring.

SA bus terminal block

The SA Bus terminal block is a brown, removable, 4-terminal plug that fits into a board-mounted
jack.
Wire the removable SA Bus terminal block plugs on the controller, and other SA bus devices in
a daisy-chain configuration using 4-wire twisted, shielded cable as shown in Figure 5. For more
information about the SA Bus terminal function, requirements, and ratings, see Table 5.
8 FX-PCA3611 Advanced Application Programmable Controller Installation Instructions
Figure 4: FC bus terminal block wiring