Product Overview
December 2008
© 2008 Foundry Networks, Inc.
2 - 31
Power Supply LEDs
Each power supply has three LEDs on its faceplate. The LEDs are described in Table 2.14.
About Redundant Power Supplies and Power Supply Failure
A FastIron chassis with redundant power supplies can maintain full operation when one or more power supplies
fail. Power supply failure can be a failure of the supply itself or the office power grid connected to the power
supply.
Table 2.14: Power Supply LEDs
LED
Desired State
Meaning
Abnormal
State
Meaning/Action
AC OK (AC
supply only)
ON – Green
(steady)
The power supply is
receiving AC power
from an AC power
source
OFF
The power supply is not receiving
power from an AC power source.
You can do the following:
•
Make sure that the power
supply cord is connected
securely to the wall outlet and
the power supply.
•
Make sure that the wall outlet
is rated for 115/120V and
20A. If it is not, obtain a cable
that is compatibly rated for the
outlet.
•
Make sure that the wall outlet
has power.
DC IN (DC
supply only)
Green (steady)
The power supply is
receiving DC power
from a DC power
source
OFF
The power supply is not receiving
power from a DC power source.
You can do the following:
•
Make sure that the power
supply cables are connected
securely to the power source
and the power supply.
•
Make sure that the DC power
source is 48VDC @ 37.0 A.
•
Make sure that the power
source has power.
DC OUT
ON – Green
(steady)
The power supply is
supplying DC output
power to the chassis
OFF
The power supply is not supplying
DC output power to the chassis.
If this occurs and the AC OK (AC
power supply) or DC IN (DC power
supply) LED is Green, then there
is a problem with the power supply
and it must be replaced.
ALM
OFF
No alarms present and
the power supply is in
normal operating
condition.
Amber
There is an alarm present and the
power supply is malfunctioning.
Verify the AC or DC input and DC
output voltages.
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