19(Optional) Installing Power Cables for Four AC Dual–Live Wire InputsStep 1 Route AC input cables through an appropriate cable hole on the rear of the subrack.Step 2 Secure the AC input cables to the AC input wiring terminals, as shown in Figure 28Figure 28 – Installing Power Cables for four AC dual-live Wire InputsStep 3 Reinstall the AC input protective cover.Step 4 Reinstall the rear cover for the DCPS.(Optional) Installing Power Cables for Three AC Dual–Live Wire InputsStep 1 Install short-circuit copper bars. Connect AC input terminals 3-L1 and 4-L1 by using short-circuitcopper bar 1. Connect AC input terminals 3-L2 and 4-L2 by using short-circuit copper bar 2.Then secure the copper bars by using screws.Step 2 Route AC input power cables through an appropriate cable hole on the rear of the subrack.Step 3 Secure the AC input OT terminals to the corresponding short-circuit copper bars and AC inputwiring terminals, as shown in Figure 29.Figure 29 – Installing Power Cables for three AC dual-live Wire Inputs(1) Short-Circuit Copper Bar 1 (2) Short-Circuit Copper Bar 2