Cisco NCS 560-4

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 NCS 560-4 Router:
Before you begin
See the table below for OIR parameters for the power supply.
Table 10: Online Insertion and Removal - Parameters
CommentsOIR TimeFan SpeedAmbient
8
OIR Module
Fans running at
normal speed
5 minsAs per the fan
algorithm
40°CPSU
8
It is not recommended to perform OIR of any module above 40°C ambient
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 Loosen the captive screws on the DC power supply and pull out the power supply partially so that there is
enough space to open the terminal block cover.
Step 4 Open the terminal block cover to unscrew and remove the lugs.
This step does not apply to the A900-PWR1200-D power supply.
Note
Step 5 Grasping the power supply handle with one hand, pull the power supply out from the chassis while supporting
it with the other hand.
Step 6 Replace the DC power supply within 5 minutes. If the power supply bay is to remain empty, install a blank
filler plate (Cisco part number N560-PWR-BLANK) over the opening, and secure it with the captive installation
screws.
Cisco NCS 560-4 Router Hardware Installation Guide
73
Installing the Cisco NCS 560-4 Router
Removing and Replacing the DC Power Supply