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Installing the Cisco NCS 4216
Removing and Replacing the DC Power Supply
This section provides information about removing and replacing the DC power supply in the Cisco NCS 4216.
The Cisco NCS 4216 power supplies are hot-swappable. If you have installed redundant power supply
Note
modules, you can replace a single power supply without interrupting power to the router.
To avoid erroneous failure messages, allow at least 2 minutes for the system to reinitialize after a power
Caution
supply has been removed or replaced.
When you install the unit, the ground connection must always be made first and disconnected last. Statement
Warning
1046
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Warning
Statement 1003
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Warning
Statement 1030
Installation of the equipment must comply with local and national cal codes. Statement 1074
Warning
Follow these steps to remove and replace the DC power supply on the Cisco NCS 4216:
SUMMARY STEPS
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.
2. Slip on the ESD-preventive wrist strap that was included in the accessory kit.
3. Switch the power supply circuit-breaker switch to the Off (O) position.
4. Pull the terminal block plug connector out of the terminal block head in the power supply.
5. Loosen the captive screws on the DC power supply.
6. Grasping the power supply handle with one hand, pull the power supply out from the chassis while
supporting it with the other hand.
7. 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 NCS4216-PWR-BLANK) over the opening, and secure it with the captive
installation screws.
Removing and Replacing the DC Power Supply
Cisco NCS 4216 Hardware Installation Guide
39
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