Problem
Descripon
The power system is not funconing normally.
Cause
Soluon
• Check the LEDs on each power supply faceplate.
• If an AC power supply is correctly installed and funconing normally, the AC OK and DC OK LEDs
light steadily, and the PS FAIL LED is not lit.
• If a DC power supply is correctly installed and funconing normally, the PWR OK, BRKR ON, and
INPUT OK LEDs glow steady green.
• Issue the CLI show chassis environment pem command to check the status of installed power supplies. As
shown in the sample output, the value Online in the rows labeled State must indicate that each of the
power supplies is funconing normally.
user@switch> show chassis environment pem
PEM 0 status:
State Online
Temperature OK
DC Output Voltage(V) Current(A) Power(W) Load(%)
48 12 576 36
PEM 1 status:
State Online
Temperature OK
DC Output Voltage(V) Current(A) Power(W) Load(%)
50 12 600 37
The output is of an EX9208 switch. The output is similar for EX9204 and EX9214 switches.
If a power supply is not funconing normally, perform the following steps to diagnose and correct the
problem:
•
If a major alarm condion occurs, issue the show chassis alarms command to determine the source of
the problem.
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