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C-10
Cisco ME 3400 Ethernet Access Switch Hardware Installation Guide
OL-7677-04
Appendix C Connecting to DC Power
Wiring the DC-Input Power Source
Figure C-11 Inserting Wires in the Terminal Block Plug
Step 6
Use a ratcheting torque screwdriver to torque the terminal block captive screw (above the installed wire
lead) to 4.5 lbf-in. (72 ozf-in.). (See Figure C-12.)
Caution Do not overtorque the terminal-block captive screws. The recommended maximum torque is 4.5 lbf-in.
Figure C-12 Torquing the Terminal-Block Captive Screws
Step 7 Repeat Steps 4 and 5 for the remaining three DC-input power source wires. Figure C-13 shows the
completed wiring of a terminal block plug.
1 Return (positive) Feed A 3 Return (positive) Feed B
2 Supply (negative) Feed A 4 Supply (negative) Feed B
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1
2
3
4
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Torque to 4.5 lbf-in. (72 ozf-in.)