External Power Supply Unit; Eps-150Dc External Power Module (With Eps-T2) - Extreme Networks Summit X250e-24t Hardware Installation Manual

Summit Power Supplies
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
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Summit X250e-24p switch
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Summit X350-24t switch
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Summit X350-48t switch
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Summit X450a-24t switch
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Summit X450a-24x switch
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Summit X450a-48t switch
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Summit X450e 24p switch
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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 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.

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 X250e-24tDC switch
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Summit X250e-24xDC switch
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Summit X250e-48tDC switch
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Summit X450a-24tDC switch
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Summit X450a-24xDC switch
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Summit X450a-48tDC switch
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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.
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Summit Family Switches Hardware Installation Guide