Confidential and proprietary information of Extreme Networks. © 2011 Extreme Networks, Inc.
All rights reserved. DRAFT. October 20, 2011
Replacing DC Power Supplies in Summit Family Switches
Summit Family Switches Hardware Installation Guide
308
Removing an EPS-150DC Power Module from an
EPS-T2 Tray
Always be sure that the DC circuit is de-energized before disconnecting any cables and attempting to
remove an EPS-150DC power module.
Removing the DC wiring harness from your facilities DC source voltage must be done by a qualified,
licensed electrician.
To disconnect and remove an EPS-150DC power module:
1 Attach an ESD-preventive strap to your bare wrist and connect the metal end to the an appropriate
ground point on the equipment rack.
2 De-energize the DC circuit.
3 At the back of the system, remove power from the EPS-150DC power module by unplugging the DC
connector from the DC power supply socket on the rear of the EPS-150DC unit.
Loosen the retainer nut on the DC power connector and unplug the connector from the back of the
power unit.
4 At each end of the redundant power cable, unscrew the captive retaining screws on the power
connector and disconnect the cable from the switch and the EPS-150DC unit.
5 Loosen the thumbscrews on the front of the EPS-150DC unit until they are completely free of the
EPS-T tray, and slide the EPS-150 unit out of the tray.
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