Universal Gateway Chassis Installation Guide

B-4
Cisco AS5350XM Universal Gateway Chassis Installation Guide
OL-6417-02
Appendix B Replacing the Power Supply
Removing the Chassis Cover
Figure B-2 DC Power Supply Connections—Redundant Power Supply
a. Loosen the five locking screws for the negative, return, and ground connectors on the DC connector.
b. Remove the +48 VDC return wires from the DC connectors.
c. Remove the -48 VDC wires into the DC negative connectors.
d. Remove the safety ground wire from the DC connector.
Step 3 Remove all interface cables from the rear panel of the universal gateway.
Step 4 Place the universal gateway so that the front panel is facing you.
Step 5 Remove the five screws on the chassis cover. (See Figure B-3.)
A- A+
B- B+
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Power switch
Source A - NEG
Source A - RTN
Source B - NEG
Source B - RTN
Ground
To DC source
DC connector