Cisco ASR 902U Hardware Installation Manual page 100

Installing a DC Power Supply
the wire. Stripping more than the recommended amount of wire can leave behind exposed wire from the terminal block
plug after installation.
Step 3 Identify the ground, positive, and negative feed positions pertaining to the terminal block connection. The recommended
wiring sequence is (the figure below):
• Ground lead wire (left)
• Negative (-) lead wire (middle)
• Positive (+) lead wire (right)
Figure 48: DC Power Supply with Lead Wires
Label
1
2
Step 4
Insert the exposed wire of one of the three DC-input power source wires into the terminal block plug. Make sure that
you cannot see any wire lead. Only wires with insulation should extend from the terminal block.
Do not overtorque the plug-captive screws of the terminal block. The recommended maximum torque is from
Caution
4.425 in.-lb (.5 N-m) to 5.310 in-lb (.6 N-m).
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
86
Component
Ground lead wire
Negative (–) lead wire
Installing the Cisco ASR 902 Router
Label
3
—
Component
Positive (+) lead wire
—