3Com 4800G Getting Started Manual page 21

Table 6 Description of LEDs on the front panel of the Switch 4800G 48-Port
LED Mark Status
7-segment digital Unit
LED
Auto-sensing -
10/100/1000Base-T
Ethernet port status
LED
SFP port status LED -
(1000 Mbps)
POST running
POST failed
Software loading
Fan failure
Over-temperature alarm
Cluster status
Speed
Duplex
The Mode button has no
effect on the LED.
The power LED flashes green. The LED displays the POST test ID.
The power LED flashes red.
The power LED flashes green. A bar rotates clockwise around the LED.
The power LED is solid red.
The power LED is solid red.
Solid green
Green
Yellow
Flashing yellow (3 Hz)
OFF
Green
Yellow
Flashing yellow (3 Hz)
OFF
Green
Flashing yellow (3 Hz)
OFF
Switch 4800G 48-Port
Description
The LED flashes the POST test ID of the
failed test.
The LED displays F.
The LED displays t.
For a command switch, the LED displays C.
For a member switch, the LED displays S.
For a candidate switch, the LED displays c.
The LED displays 1 if there is only one unit.
A 1000 Mbps link is present. When data is
being received or sent, the LED flashes at a
high frequency.
A 10/100 Mbps link is present. When data
is being received or sent, the LED flashes
at a high frequency.
The port fails the POST.
No link is present.
The port operates in the full duplex mode.
When data is being received or sent, the
LED flashes at a high frequency.
The port operates in the half duplex mode.
When data is being received or sent, the
LED flashes at a high frequency.
The port fails the POST.
No link is present.
A 1000 Mbps link is present. When data is
being received or sent, the LED flashes
every 30 milliseconds.
The port fails the POST.
No link is present.
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