An expansion module can be connected to an SA bus or an FC bus, but not to both buses simultaneously. The SA/FC bus terminal block is a removable, 4-terminal plug that fits into a board-mounted jack.
When connecting the module to an FC bus, wire the bus terminal block plugs on the expansion module, and the other expansion modules in a daisy-chain configuration using 3-wire twisted, shielded cable as shown in the following figure.
When connecting the expansion module 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 Figure 2.
