Extreme Networks ExtremeSwitching X440-G2 Series Hardware Installation Manual page 300

Removing an 1100 W DC Power Supply
To remove an installed 1100 W DC power supply, follow these steps:
Caution
The DC power supply may be hot to the touch; use thermal protective gloves when handling
the power supply during removal.
1 De-energize the DC circuit.
2 Disconnect the DC power cables:
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 Push the latching tab toward the power supply handle and pull outward on the handle to disengage
the power supply internal connectors.
See Figure 239.
Figure 239: Removing a Summit 1100 W Power Supply
5 Carefully slide the power supply the rest of the way out of the switch.
ExtremeSwitching and Summit Switches: Hardware Installation Guide
Replacing DC Power Supplies
300