Removing The Power Supply - Extreme Networks Summit X150 Series Hardware Installation Manual

Removing the Power Supply

Caution
The DC power supply may be hot to the touch; use thermal protective gloves when handling
the power supply during removal.
To remove an installed Summit 450 W OR 550 W DC power supply:
1 De-energize the DC circuit.
2 Disconnect the DC power cables as follows:
a Pull the cover off the terminal block.
b Loosen the screws that secure the cable terminals to the terminal block.
c Slide the wires out from under the captive washers.
Warning
Be sure to disconnect all power cables before you disconnect the chassis ground wire.
3 Disconnect the ground wire as follows:
a Loosen the screw that secures the ground wire to the terminal block.
b Slide the wire out from under the captive washer.
4 Note the orientation of the installed power supply.
5 For a Summit X670 series switch, note the direction of ventilation airflow, and verify that the power
supply airflow direction is the same as that of the switch.
In a switch with front-to-back airflow, the fan modules are labeled Air Out.
In a switch with back-to-front, the fan modules are labeled Air In.
6 Push the latching tab toward the power supply handle and pull outward on the handle to disengage
the power supply internal connectors.
Figure 328: Removing a Summit 450 W or 550 W DC Power Supply
7 Carefully slide the power supply the rest of the way out of the switch.
Summit Family Hardware Installation Guide
Replacing DC Power Supplies in Summit Family Switches
342