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Cisco ME 3400 Ethernet Access Switch Hardware Installation Guide
OL-7677-02
Appendix C Connecting to DC Power
Wiring the DC-Input Power Source
Step 4 Using an 18-gauge wire-stripping tool, strip each of the four wires coming from the DC-input power
source to 0.27 inch (6.6 mm) 0.02 inch (0.5 mm). Do not strip more than 0.29 inch (7.4 mm) of
insulation from the wire. Stripping more than the recommended amount of wire can leave exposed wire
from the terminal block plug after installation.
Figure C-8 Stripping the DC-Input Power Source Wire
Step 5 Insert the exposed wire of one of the four DC-input power source wires into the terminal block plug, as
shown in Figure C-9. Make sure that you cannot see any wire lead. Only wire with insulation should
extend from the terminal block.
Warning
An exposed wire leadfrom a DC-inputpower source can conductharmful levels of electricity. Be sure
that no exposed portion of the DC-input power source wire extends from the terminal block plug.
Statement 122
Figure C-9 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-10.)
Caution Do not overtorque the terminal-block captive screws. The recommended maximum torque is 4.5 lbf-in.
0.25 in. (6.3 mm)
±
0.02 in. (0.5 mm)
60531
1 Return (positive) Feed A 3 Return (positive) Feed B
2 Supply (negative) Feed A 4 Supply (negative) Feed B
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