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
Warning
Follow these steps to remove and replace the DC power supply on the Cisco ASR 920-24SZ-IM,
ASR-920-24SZ-M, ASR-920-24TZ-M Router:
Procedure
Step 1
Before servicing the power supply, switch off the circuit breaker in your equipment area. As an additional
precaution, tape the circuit-breaker switch in the Off position.
Step 2
Slip on the ESD-preventive wrist strap that was included in the accessory kit.
Step 3
Switch the power supply circuit-breaker switch to the Off (O) position.
Step 4
Pull the terminal block plug connector out of the terminal block head in the power supply.
Step 5
Loosen the captive screw on the DC power supply. See the figure below.
Figure 23: Removing a DC Power Supply
Do not use the captive installation screw to pull out the power supply.
Caution
Installing the Router
28
Installing the Router
Removing and Replacing a DC Power Supply