Verifying proper operation
To verify the proper operation of the power supply after power on, you can observe the LEDs on the power supply.
After the Extreme Networks device powers on, you can observe the LEDs on the front of the device to verify that it initialized
successfully. There is a single LED on the power supply which should be steady green when the power supply is receiving power and
under normal operation. Table 1 outlines the LEDs, the desired state of each LED, possible abnormal states of each LED, and what to do
if an LED indicates an abnormal state.
To verify proper operation, complete the following steps.
1. Verify that the power supply's LED is steady green on the back of the device.
2. Verify that the power supply was placed in power supply bay #1 and operational by observing a steady green LED lighting up
"P1" on the front of the device.
TABLE 19
LEDs for power and fans (located on front of device )
LED
State
Meaning
Fan (labeled Fn)
On
The fan tray is powered on and is operating
normal.
Off
The fan tray is not powered on, or has been
removed.
PS1 (labeled P1)
Off
Power supply 1 is not installed or is not
providing power.
Amber
Power supply 1 is installed, but not
connected or a fault is detected.
Green Steady
Power supply 1 is installed and is functioning
normally.
Green Blinking
Power supply 1 has input power, but is not
enabled and has no output power.
PS2 (labeled P2)
Off
Power supply 2 is not installed or is not
providing power.
Amber
Power supply 2 is installed, but not
connected or a fault is detected.
Green Steady
Power supply 2 is installed and is functioning
normally.
Green Blinking
Power supply 2 has input power, but is not
enabled and has no output power.
The LEDs for Fan, PS1 and PS2 are located on the right side of the front panel for CES 2000 Series and CER 2000 Series
2024 models (On the CES 2000 Series 2048 and CER 2000 Series 2048 models, these LEDs are located on the left side of
the front panel).
The software regularly polls the hardware for power status information. You can display the status information from any
management session. In addition, the software automatically generates a Syslog message and SNMP trap if a status change
occurs.
Power supply replacement
ExtremeSwitching CES 2000 Series and ExtremeRouting CER 2000 Series Hardware Installation Guide
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