Allied Telesis AT-PWR3101 - Manual (Page 14)

Installation Instructions
14
AT-PWR3101 Module LED
The AT-PWR3101 module has one LED labelled STATUS. The meanings
of the LED states are described below:
The LED on the AT-PWR3101 module does not reflect the operational
state of the module (e.g., stand-by or operational mode).
There are several ways you can determine whether the power supply in a
switch has failed and whether an AT-PWR3101 module is supplying
power to the switch:
ˆ You can examine the FAULT LED on the switch’s front panel. If the
LED is amber, the switch has experienced a problem. An amber
FAULT LED could indicate a problem with the switch’s internal power
supply, though it could also indicate some other problem, such as a
fan failure.
ˆ If you configured the switch’s SNMP software by entering the IP
addresses of one or more management workstations on your
network, the switch sends a SNMP trap to the workstations to alert
you when its internal power supply fails.
ˆ The best way to determine the status of the switch’s internal power
supply and an attached AT-RPS3104 unit is by viewing the System
Hardware Status menu in the switch’s AT-S62 management software.
If an RPS unit is connected to the switch, the Redundant Power
Supply item in the menu says “On.” If the RPS is supplying power to
the switch, the Redundant Power Supply item changes to “AC - On.”
Table 1. AT-PWR3101 STATUS LED
State Description
Green
The AT-PWR3101 module is receiving AC power and
is operating normally.
Amber
The AT-PWR3101 module is experiencing a problem
or has failed.