82 Mode 3-1(single source) (Default UPS wiring mode)1. Input: connect mian-ground cable (PE) to chassis first;short ‘UPS input terminal N/N’ with ‘busbar #1’, then connect AC cable(N);connect ‘UPS input terminal L2/L3’ to AC cable(L2/L3);Fix ‘jumper cable’ to ‘UPS input terminal L1’ and ‘busbar #2’, then short‘UPS bypass terminal L1/L2/L3’ with this ‘busbar #2’ and connect ACcable(L1).2. Output: connect ground cable (PE) to chassis first;short ‘UPS output terminal N/N’ with ‘busbar #1’, then connect ACcable(N);short ‘UPS output terminal L1/L2/L3’ with ‘busbar #2’, then connect ACcable(L)