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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
Note: The SA PWR terminal supplies 15 VDC. The SA PWR terminal can be used to connect (daisy chain) the 15
VDC power leads on the SA bus.
FC Bus Port
The FC bus port on the front of the controller is an RJ-12, 6-position modular jack. The FC bus port is connected
internally to the FC bus terminal block. See
in
Figure
6.
Note: When an FEC is configured for N2 network communication, the FC bus port is not used.
FEC1611 and FEC1621 Field Equipment Controller Installation Instructions
Figure 4: FC Bus Terminal Block Wiring
Figure 5: SA Bus Terminal Block Wiring
Table 5
for more information. The FC bus Port pin assignment is shown
Figure
5. See
Table 5
for more information.
7
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