Cisco 5428 - SN Router, Руководство по установке

Страница: 76 / 106

B-6
Cisco AS5400 Universal Gateway Chassis Installation Guide
OL-2847-02 0A
Appendix B Replacing the Power Supply
Removing the Power Supply
Warning Before working on a system that has an on/off switch, turn OFF the power and unplug the
power cord. To see translations of the warnings that appear in this publication, refer to
the
Regulatory Compliance and Safety Information document that accompanied this
device.
Warning
Before working on equipment that is connected to power lines, remove jewelry
(including rings, necklaces, and watches). Metal objects will heat up when connected
to power and ground and can cause serious burns or weld the metal object to the
terminals. To see translations of the warnings that appear in this publication, refer to the
Regulatory Compliance and Safety Information document that accompanied this device.
Caution
If the power supply unit was originally fitted with the AS54XM-AC-RPS and during the
power supply unit’s lifecycle is exchanged to the AS54XM-DC-RPS, Cisco IOS will report
that the AS54XM-AC-RPS is still installed.
For this reason, Cisco does not recommend replacing the AC power supply with the DC
power supply, or the DC power supply with the AC power supply.
To remove the power supply, follow these steps:
Step 1
Place the chassis so that the rear panel is facing you.
Step 2 Remove the three mounting screws that secure the power supply to the chassis and set them aside. (See
Figure B-4 .)
Figure B-4 Removing the Power Supply Mounting Screws
Step 3
Turn the chassis so that the front panel is facing you.
14130
AC OK
DC OK
OTF
AC OK
DC OK
OTF
Mounting
screws
Power supply