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DUA1840-0AAA01
Switch Overview — Front Panel
1
-
17
LEDs
For information on using the LEDs for fault diagnosis, please see
“Identifying Fault Conditions with the LEDs”
in Chapter 6.
LED
Color
Indicates ...
PWR
(Power)
Green
Green flash
(slow, 0.5 Hz)
Green flash
(fast, 1Hz)
Amber
The Switch is powered up and operating
normally.
Power On Self Test (POST) in operation.
Software download in progress
Fault occurred on this Switch
Backplane
E
FE
Green
Green flash
Yellow
Green
Green flash
Yellow
One or more of the internal Ethernet (10Mbps)
backplanes are enabled.
All three internal Ethernet backplanes are
disabled.
There is network activity on the enabled
backplane(s).
Connection to the internal Fast Ethernet
(100Mbps) backplane is enabled.
Connection to the internal Fast Ethernet
(100Mbps) backplane is disabled.
There is network activity on the Fast Ethernet
backplane.
1 - 12
(External port
status)
Green
Green flash
Yellow
Off
Link connected; port enabled.
Link connected; port disabled.
Traffic being transmitted/received on this port.
Link not connected.
Ports 1 - 4 relate to any Transceiver Module installed into the
slot. If you have installed a Fast Ethernet Transceiver Module,
LED 1 will be lit, all others are unused.