Extreme Networks ExtremeSwitching 5420 Series - Rack, Cable, and Interference Management

The 2000 W AC PoE power supply has the status LEDs listed in the following table:
Table 8: 2000 W AC PoE Power Supply LED Status Indications
DC_OK
(left)
AC_OK
(right)
Description
Green/1
Hz
ashing
Green AC present / only standby outputs on.
Green Green Power supply DC outputs on and OK.
Red Green Power supply failure. PSU shut down*.
*Power supply DC fail : OCP, OVP, UVP, OTP, fan.
2000 W AC PoE Power Supply Power Supplies for Use with Your Switch
38 ExtremeSwitching 5420 Series Hardware Installation Guide