Chapter 13: Replacing Hardware Components
■Replacing an AC Power Cord on page 118
■Replacing a DC Power Supply Cable on page 119
Removing an AC Power Supply
The power supplies are located at the rear of the chassis. Each AC power supply weighs approximately 5.0 lb (2.3 kg).
CAUTION: Do not leave a power supply slot empty for more than 30 minutes while the router is operational. For proper airflow, the power supply must remain in the chassis, or a blank panel must be used in an empty slot.
NOTE: After powering off a power supply, wait at least 60 seconds before turning it back on.
To remove an AC power supply (see Figure 53 on page 113):
1.Switch off the dedicated facility circuit breaker for the power supply, and remove the power cord from the AC power source. Follow the ESD and disconnection instructions for your site.
2.Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis. For more information about ESD, see “Preventing Electrostatic Discharge Damage” on page 130.
3.Move the AC switch next to the appliance inlet on the power supply to the off position (O).
4.Unscrew the captive screws on the bottom edge of the power supply.
5.Remove the power cord from the power supply.
6.Pull the power supply straight out of the chassis.
Figure 53: Removing an AC Power Supply
Replacing Power System Components ■ 113
