Extreme Networks Summit X150 Series Hardware Installation Manual page 129

3 Unplug the second EPS-600LS unit from its power source.
The internal power supply is already enabled and provides uninterrupted 370 watts of PoE power.
Note
After an EPS-600LS unit is disconnected from its power source, it may be removed from
the EPS-C. See
instructions.
4 Disconnect the EPS-C from 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
•
Summit X250e-24xDC switch
•
Summit X250e-48tDC switch
•
Summit X450a-24tDC switch
•
Summit X450a-24xDC switch
•
Summit X450a-48tDC switch
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 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.
The front panel of the EPS-150DC unit has a green LED to indicate operating status as shown in the
following table.
Power LED
Green, solid
Off
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.
Each EPS-150DC power supply is shipped with a special redundant power supply cord.
Summit Family Hardware Installation Guide
Remove an EPS-600LS Power Module
Meaning
The external power module is operating normally.
The external power module is not connected.
Summit Power Supplies
for disconnection and removal
129