Confidential and proprietary information of Extreme Networks. © 2011 Extreme Networks, Inc.
All rights reserved. DRAFT. October 20, 2011
Summit Family Switches Hardware Installation Guide
109
EPS-500 External Power Supply Unit
The Extreme Networks EPS-500 External Power Supply Unit (Model 10911) provides additional power
to compatible Power over Ethernet (PoE) switches and other Extreme switches. You can use the EPS-500
power supply as a redundant power supply with the following Extreme Networks switches:
● Summit X150-24p switch
● Summit X250e-24p switch
● Summit X350-24t switch
● Summit X350-48t switch
● Summit X450a-24t switch
● Summit X450a-24x switch
● Summit X450a-48t switch
● Summit X450e-24p switch
● Summit X450e-24t switch
● Summit X450e-48t switch
The EPS-500 power supply provides up to 500 W of total power and up to 375 W of power dedicated to
PoE applications. When this power supply is used with one of the listed Summit switches, the internal
and external power supplies are fully fault tolerant and load-sharing. If one power supply fails, the
other power supply will provide sufficient power to operate the switch.
The front of the EPS-500 has a green LED to indicate operating status (
Table 33).
An AC power input cord is not provided; you can order an appropriate cord from Extreme Networks or from
your local supplier. The power cord must meet the requirements listed in
“Selecting Power Supply Cords” on
page 339.
Each EPS-500 power supply is shipped with a special redundant power supply cord (Figure 83).
Figure 83: EPS-500 Redundant Power Cord Connector
Table 33: LED Meanings on the EPS-500 Power Supply
Power LED Meaning
Green, solid The external power supply is operating normally.
Off The external power supply is not connected.
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