Power off1. Test SW Open Contactors.2. AC Switch moved to off position by tester.a. Contactor switch moved to off position1. AC Control Connection2. Contactor Switch1.All lights on stack are off.Visual inspection recorded in test SW.Disconnection all power and communication cabling1. Disconnect TCP/IP RJ452. Disconnect AC power line and neutral for balance and control3. Disconnect continuous DC power cables +/-Visual inspection for lightsSW verification for status of contactors