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NE1064TO Installation Guide
Service LEDs
The service LEDs are located on the front side of the switch, as part of the
management panel. They indicated the status of various switch hardware
components.
Figure 9.
NE1064TO Front Side Panel Service LEDs
The status LEDs for the front panel are described in the following table:
Table 3.
Front side panel status LEDs behavior
LED
State
Functional Meaning
Service Required
Steady blue
Stack backup/member, or
Operations command
Flashing blue
Single power supply failure, or
AC cable unplugged from a PSU, or
Fan failure, or
Stack error
Light off
Power supply normal operation, or
Fans normal operation, or
Stack master, or
Non-stack member, or
AC cables unplugged or damaged on
all PSUs
Power Supply
Steady green
Power supply normal operation
Flashing green
(once per second)
Not all power supply are plugged in
Flashing green
(twice per second)
Power supply failure, or
AC cable is unplugged from a PSU
Light off
AC cables unplugged or damaged on
all PSUs
Service Required Status
Power Supply Status
Fan Status
Stacking Status
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