Installation Guide

• 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 sucient power to operate the switch.
The front of the EPS-500 has a green LED to indicate operating status as shown in the following table.
Power LED Meaning
Green, solid The external power supply is operating normally.
O The external power supply is not connected.
Note
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
Power Cord Requirements for AC-Powered Switches and AC Power Supplies on page 653.
Each EPS-500 power supply is shipped with a special redundant power supply cord.
Figure 162: EPS-500 Redundant Power Cord Connector
EPS-600LS External Power Module
The EPS-600LS External Power Module (Model 10913) is a 600-watt redundant power supply unit that
can be used with the following Extreme Networks switches:
• Summit X450e-48p switch
• Summit X250e-48p switch
Install one, two, or three EPS-600LS power modules in the EPS-C chassis (Model 10912) to build an
external redundant power system for the Summit switch. A redundant power cable shipped with the
EPS-C chassis provides the connection between the external power system and the redundant power
input connector on the back of the switch.
EPS-600LS External Power Module
Power Supplies for Use with Your Switch
170 Summit Family Hardware Installation Guide