Installation Manual
Quidway S3900 Series Ethernet Switches
Chapter 1 Product Overview
Huawei Technologies Proprietary
1-30
LED
Mark
Color
Indicates
ON
A 100 Mbps link is present.
Green
Flash
Data is being received/sent on
the port
ON
A 10 Mbps link is present.
Yellow
Flash
Data is being received/sent on
the port
Flashing yellow
(3 Hz)
The port fails POST.
Speed
OFF
No link is present.
ON
The port is operating in full
duplex mode
Green
Flash
Data is being received/sent on
the port
ON
The port is operating in half
duplex mode
Yellow
Flash
Data is being received/sent on
the port
Flashing yellow
(3 Hz)
The port fails POST.
Duplex
OFF
No data is being received/sent
on the port
Solid green
The port is providing power
Flashing green
(3 Hz)
Exceeds the upper limit of
power consumption on the port
or the left power is not enough.
Solid yellow
PoE fault occurs, the port
cannot provide power normally.
Flashing yellow
(3 Hz)
The port fails POST.
10Base-
T/100Ba
se-TX
port LED
PoE
OFF
The port does not provide
power.