Installation guide

Summit External Power Supplies (EPS)
Summit Family Switches Hardware Installation Guide
48
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.
EPS-150DC External Power Module (with EPS-T2)
The EPS-150DC External Power Module (Model 10909) is a modular power supply for use in the EPS-T2
External Power System Tray. You can use the EPS-150DC as a redundant power supply with the
following Extreme Networks switches:
● Summit X450a-24tDC switch
● Summit X450a-24xDC switch
● Summit X450a-48tDC switch
When this power supply is used 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 EPS-T2 is a rack-mountable chassis or tray that holds one or two EPS-150DC power supplies. Each
EPS-150DC provides one-to-one redundancy to an attached Extreme switch. You must install the EPS-
150DC power supply in the EPS-T2 tray.
NOTE
For centralized DC power connection, this product is intended to be installed in restricted access locations
(dedicated equipment rooms, equipment closets, or the like) in accordance with Articles 110-16, 110-17, and 110-
18 of the National Electric Code, ANSI/NFPA 70.
EPS-600LS External Power Module
The EPS-600LS External Power Module (Model No. 10913) is a 600-watt redundant power supply unit.
You can use the EPS-600LS as a redundant power supply with the following Extreme Networks
switches:
● Summit X450e-48p switch
● Summit X250e-48p switch
NOTE
Each EPS-600LS power module is shipped with an AC cord for use in North America, and each EPS-C chassis is
shipped with a special redundant power supply cord for connection to the Summit switch. Make sure that the EPS-C
chassis is installed in the rack system before installing an EPS-600LS unit.
PoE Redundant Power Configurations
You install one, two, or three EPS-600LS power modules in the EPS-C chassis (Model No. 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.