3Com 4800G Getting Started Manual page 16

16 C 1: P
HAPTER RODUCT
Table 5 Descriptions of the LEDs on the front panel of Switch 4800G PWR 24-Port
LED Mark Status
10/100/1000Base-T -
Ethernet port status
LED
SFP port status LED -
(1000 Mbps)
SFP port status LED -
(100 Mbps)
O
VERVIEW
Speed
Duplex
PoE
The Mode button has no
effect on the LED.
Speed
Duplex
Green
Yellow
Flashing yellow (3 Hz)
OFF
Green
Yellow
Flashing yellow (3 Hz)
OFF
Solid green
Flashing green (1 Hz)
Solid yellow
Flashing yellow (3 Hz)
OFF
Green
Flashing yellow (3 Hz)
OFF
Yellow
Flashing yellow (3 Hz)
OFF
Green
Flashing yellow (3 Hz)
OFF
Description
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 works in the full duplex mode.
The LED flashes at a high frequency when
data is being received or sent.
The port works in the half duplex mode.
The LED flashes at a high frequency when
data is being received or sent
The port fails the POST.
No link is present.
The port supplies power normally.
The required power of the attached device
exceeds the maximum power that the port
can supply.
The total power reaches the maximum
power, so the port stops supplying power.
The device attached to the port is not a
powered device (PD), so the port cannot
supply power.
A PoE failure occurs, so the port cannot
supply power.
The port fails the POST.
The port does not supply power.
A 1000 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.
A 100 Mbps link is present. When data is
being received or sent, the LED flashes at a
high frequency.
The port failed 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 fails the POST.
No link is present.