49
Remove the DC Power Supply
Because of the power supply redundancy, there is no need to power off the Cisco 7201 router before removing one of the DC
power supplies.
Warning
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Statement 1003
Warning
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
Warning
Installation of the equipment must comply with local and national electrical codes.
Statement 1074
Figure 39 Removing the Ground Lugs
Caution The DC return connection to this system is to remain isolated from the system frame and chassis (DC-I).
Step 1 Switch the circuit breaker to the off position, and tape the switch handle to the off position.
Step 2 Pull the terminal block plug from the terminal block.
Step 3 Locate the DC power supply grounding stud.
Step 4 Remove the nut, ground lug, star washer, ground lug, and star washer and save for reuse on the new DC power supply.
Step 5 Move the power up restrictor to the left to gain access to the upper power supply captive installation screw.
Step 6 Use a Number 2 Phillips screwdriver to unscrew the upper power supply captive installation screw.
Step 7 Unscrew the lower power supply captive installation screw on the lower left of the power supply.
Step 8 Grasping the captive installation screws, pull the power supply from the chassis.
PWR
SLOT 2
B
A
170970