Installation Manual
H3C S5500-SI Complete Series Ethernet Switches
Chapter 1 Product Overview
1-16
LED
Mark
Status
Description
Green
The port works at the rate of
1000 Mbps; the LED blinks
quickly when the port is sending
or receiving data.
Yellow,
blinking
(3 Hz)
POST fails on the port.
1000Base SFP
port status
LED
—
This LED
is not
influenced
by the
mode
button
OFF
The port is not connected.
1.3.3 LEDs of S5500-20TP-SI Switch
The S5500-20TP-SI Ethernet switch provides LEDs on the front panel for your
convenience to monitor the switch. Table 1-5 describes the meanings of the LEDs. You
can use the Mode button on the panel to switch the display mode (rate mode, or duplex
mode) of LEDs.
Table 1-5
Description of LEDs on the front panel of the S5500-20TP-SI Ethernet
Switch
LED
Mark
Status
Description
Speed
Solid
green
Rate of the port
Mode LED
Mode
Duplex
Solid
yellow
Duplex of the port
Solid green
The switch is started
normally.
Flashing green (1 Hz)
The system is running a
POST.
Solid red
The system fails the POST
or a power failure occurs.
Flashing yellow (1
Hz)
Some ports fail the POST or
a port failure occurs.
System power
LED
SYS
OFF
The power is disconnected.
Solid green
A power module is installed
in the power module slot and
the output is normal.
Solid yellow
A power module is installed
in the power module slot but
there is an output failure.
LED for power
module slot 1
PWR1
OFF
No power module is installed
in the power module slot or
no power is input.