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Connecting the fire linkage cables
Scenario 1: single-input or dual-input PDC; one pair of fire extinguishing input
cables control all loads to power off.
Single-input PDC: Connect the positive and negative terminals of the fire control cable to the
24VDC(+) and 24VDC(-) wiring terminals at the rear right of the cabinet respectively.
Dual-input PDC: Connect the positive and negative terminals of the fire control cable to the
24VDC(+) and 24VDC(-) wiring terminals at the rear left or rear right of the cabinet respectively.
Scenario 2: dual-input PDC; either of the two pairs of fire extinguishing input
cables can control all loads to power off.
Separate the two routes of fire control cables and connect them to the fire extinguishing signal
wiring terminals on both sides at the cabinet rear. Connect the positive and negative terminals of
each pair of control cable to the 24VDC(+) and 24VDC(-) wiring terminals at the rear left and rear
right of the cabinet respectively.
NOTE
1. 24 V DC cables routed into the PDC should be shielded cables.
2. Ensure that the polarities of 24 V DC cables routed into the PDC are correct.
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