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Extreme Networks 1200 W DC PSU
BlackDiamond 12800 Series Switches Hardware Installation Guide
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NOTE
Extreme Networks does not recommended installing the 1200 W DC PSU with any AC PSU in the same
BlackDiamond 12804 system. Extreme Networks recommends that DC and AC PSU units not be used together in
the same BlackDiamond switch.
For central DC power connections, the 1200 W DC PSU is intended to be installed only 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.
WARNING!
Field operators must not attempt to open the 1200 W DC PSU enclosure for any reason; the PSU does not contain
user-serviceable parts. In the event of failure, return the defective 1200 W DC PSU to Extreme Networks for repair
or replacement.
Minimum Software Required
You must be running ExtremeWare XOS version 11.3 or later for the system to recognize the DC PSU.
LEDs
The front panel of the 1200 W DC PSU provides status LEDs. Table 10 identifies the symbols and
describes the LED activity.
Table 10: LEDs on the 1200 W DC PSU
PSU Condition
Power
Green
Predictive Fail
Amber
Fail
Amber
Power supply DC outputs working normally On Off Off
DC input power present/standby output on Blinking Off Off
Current limit on 48 VDC output On Off Blinking
Predictive failure On Blinking Off
No input power to this PSU only Off Off On
No input power to any PSU Off Off Off
Power supply failure Off Off On