HP Integrity cx2600 Maintenance Manual page 27

1. If rack-mounted, you may need to extend a slide-mounted server out from the rack for better
access. If necessary, slide the server out to the fully extended position.
2. Remove power from the power supply being replaced. Disconnect power at the DC source
end of the power cable, using the disconnect device that is part of the rack or facility power
system.
3. Loosen the two knurled knobs on the power-supply cable clamp to release the power feed
leads.
4. Press up on the two lower tabs of the terminal barrier strip cover to snap off the cover.
WARNING! Always check that the power cable is not connected to a power source before
attempting to disconnect the power cable from power supply terminals. Failure to heed this
warning could result in injury.
5. Loosen or remove (as appropriate) the screws that secure power cable leads to the terminal
strip and disconnect the power cable leads from the power supply.
6. Reinstall the terminal strip hardware and barrier strip cover (removed in steps 4 and 5) to
prevent loss. Hang the cover on the upper tabs and snap the cover into place.
7. Using an ACX-15 torx screwdriver, loosen the two captive mounting screws that secure the
power supply to the server chassis.
8. Pull the power supply from the server chassis by pulling the curved handle.
9. Orient the power supply such that the securing screws are aligned with the corresponding
holes in the server chassis. Gently push the power supply into position.
10. When the power supply is fully inserted into the server chassis, tighten the two mounting
screws to secure the power supply in place.
11. Press up on the two lower tabs on the terminal barrier strip cover to snap off the cover.
WARNING!
Always check that the power cable is not connected to a power source before
attempting to connect the power cable to power supply terminals. Failure to observe this
warning can result in injury.
12. Connect the power cable leads to the power supply terminals
For -48V, the most positive wire is 0V.
For -48V, the most negative wire is -48V.
Figure 3-5 DC Power Supply Wire Connectors
(Figure 3-5).
Installing Hot-Swap Power Supply Units 27