Step 3
Verify power supply operation by checking if the respective power supply front panel LED (PS0 or PS1) is green.
Step 4
If the LEDs indicate a power problem, see
Troubleshooting
for troubleshooting information.
Step 5
If you are connecting a redundant AC power supply, repeat these steps for the second power source.
If you are connecting a redundant AC power supply, ensure that each power supply is connected to a separate
power source in order to prevent power loss in the event of a power failure.
Note
Install the DC Power Cables
When installing DC power supply, use 14 AWG, 90°C wires. Always ensure that the building’s installation
for short-circuit (overcurrent) protection does not exceed 15A.
Note
The DC connector or terminal block has an inbuilt screw and cage nut to which a torque of 1.3 to 1.8 N-m
can be applied.
Note
Figure 8: DC Connector With Inbuilt Screw
0.27 inches
C
0.97 inches
A
0.81 inches
M
0.31 inches
B
To attach the DC power supplies:
Step 1
Locate the terminal block plug.
Step 2
Insert the DC-input power source wires into the terminal block plug.
Step 3
Attach the DC supply wires using the designated screws.
Step 4
Use a ratcheting torque screwdriver to torque the terminal block plug captive screw. See the following figure.
Cisco NCS 540 Router Hardware Installation Guide
25
Install the Device
Install the DC Power Cables
