Cisco IE-3000-8TC Installation Guide - Page 148
B-45, AC/DC Power Input Terminal Block Wire Connections to a DC Source
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Connecting the Switch to the Power Converter Appendix B Installation In a Hazardous Environment Figure B-45 AC/DC Power Input Terminal Block Wire Connections to a DC Source 1 2 3 202301 1 Earth ground wire connection 2 Return wire connection (to DC return) 3 Positive DC connection Warning An exposed wire lead from a DC-input power source can conduct harmful levels of electricity. Be sure that no exposed portion of the DC-input power source wire extends from the power and relay connector. Statement 122 Step 7 Step 8 Insert the twisted-pair wire leads into the terminal block line and neutral connections. Insert the wire (labeled number 1 in Figure B-45) lead into the neutral wire connection and the wire (labeled number 2 in Figure B-45) lead into the line wire connection. Ensure that only wire with insulation extends from the connectors. See Figure B-45. Tighten the line and neutral terminal block screws. Note The torque should not exceed 10 in-lb. Step 9 Connect the red wire to the positive pole of the DC power source, and connect the black wire to the return pole. Ensure that each pole has a current-limiting-type fuse rated to at least 600 VAC/DC (such as the KLKD Midget fuse). B-58 Cisco IE 3000 Switch Hardware Installation Guide OL-13017-01