Cisco XM Universal Gateways Cisco AS5400XM - Manual (Page 74)

B-8
Cisco AS5400XM Universal Gateway Chassis Installation Guide
OL-6418-02
Appendix B Replacing the Power Supply
Removing the Power Supply
Caution Do not attempt to remove the fan cables without first depressing the tab as shown in Figure B-8 . You
can damage the fan cables by applying stress if the connector is not removed properly.
Step 7 Disconnect the fan cable, and set aside the fan. (See Figure B-8 .)
Figure B-8 Disconnecting the Fan Cable
Step 8 Remove the next fan and disconnect its cable.
Step 9 Remove the cables for the two remaining fans. You can disconnect these cables without removing the
fans.
Note There are three different lengths of 2-wire, 12 VDC power cables. The two shortest cables go to
the fan that you removed in Step 6. The two longer cables go to the three remaining fans removed
in Step 8 and Step 9. The remaining cable goes to the power connector on the backplane.
These cables are color-coded. If you use an incorrect cable to connect a fan or the backplane,
then you will be unable to make one of the other connections. To help with reconnecting the
cables, write down which colored cable goes to each fan.
Step 10 Disconnect the power connectors from the backplane. First disconnect the 2-pin 12V connector and then
disconnect the 4-jack harness of the power connector. (See
Figure B-9 .)
Power supply
Location of the 3
remaining fan connectors
Fan connector
Depress tab
and pull outward
H10517
Fan