5-44
Cisco 7600 Series Router Installation Guide
OL-4503-26
Chapter 5 Removal and Replacement Procedures
Removing and Replacing the Power Supply
Figure 5-48
Handling the Power Supply
Step 4
Tighten the power supply captive installation screws (
Figure 5-49
).
Figure 5-49
Power Supply Captive Installation Screws
Warning
Power supply captive installation screws must be tight to ensure protective grounding continuity.
Caution
In a system with dual power supplies, connect each power supply to a separate input line. In case of a
line failure, the second source will most likely still be available.
Step 5
Verify that all connections to the DC PEM are secure.
Step 6
Remove the tape from the circuit breaker switch handle, and restore power by moving the circuit breaker
switch handle to the On (|) position.
Step 7
Verify power supply operation by checking that the power supply front panel LEDs are in the following
states:
•
INPUT OK LED is green
•
FAN OK LED is green
•
OUTPUT FAIL LED is not lit
63032
INPUT
OK
FAN
OK
OUTPUT
FAIL
INPUT
OK
FAN
OK
OUTPUT
FAIL
Power Supply 2
(redundant)
Power
Supply 1
63183
INPUT
OK
FAN
OK
OUTPUT
FAIL
Captive installation screws
Status LEDs