183). Single phase + 3 wires: 220V/110Vinput switch input switch input switchoutputswitchoutputswitchoutputswitchutility loadF). Wiring connection diagram of parallel UPSs (for 3C-10000F/3C-10000FL):1). Single phase + 2 wires: 110VG N R L1 N1 L2 N2S T G N R L1 N1 L2 N2S T G N R L1 N1 L2 N2S TR S T L N G G Noutputswitchinput switchinput switchinput switchoutputswitchoutputswitchloadutility