Table 18 Seven-segment LED description (II)
LED
Status
Description
Port mode LED
System status
LED
Unit
Flashing green
(1 Hz) (PoE
mode)
Steady green
The LED displays
different signs.
0 - 20%
21 - 40%
41 - 60%
61 - 80%
81 - 100%
For example, the
sign
indicates that the switch is
outputting 0 to 20% of the
maximum PoE output
power.
10/100Base-TX Ethernet port LED
Each 10/100Base-TX auto-sensing Ethernet port has a status LED to show port operating status and
activities. The port mode LED shows the type of port status information (for example, port rate or duplex
mode) that the port status LEDs are showing. You can use the port status LED mode switching button to
change the type of displayed port information.
Table 19 10/100Base-TX auto-sensing Ethernet port LED description
Status
Description
Port mode LED Port status LED
Steady green (rate
mode)
Steady green
The port is operating at 100 Mbps. The port status LED fast
flashes when the port is sending or receiving data.
Steady yellow
The port is operating at 10 Mbps. The port status LED fast
flashes when the port is sending or receiving data.
Flashing yellow (3
Hz)
POST has failed on the port.
Off No link is present on the port.
Flashing green (1 Hz)
(PoE mode, available
only for PoE switches)
Steady green PoE power supply is normal.
Flashing green (1 Hz)
The device attached to the port requires power higher than
the maximum or currently available PoE output power on
the port.
Steady yellow
The port is not outputting power because it is connected to
a non-PD device.
The port is experiencing a PoE failure.
Flashing yellow (3
Hz)
POST has failed on the port.
Off The port is not supplying PoE power.
Steady yellow (duplex
mode)
Steady green
The port is operating in full duplex mode. The port status
LED fast flashes when the port is sending or receiving data.
Steady yellow
The port is operating in half duplex mode. The port status
LED fast flashes when the port is sending or receiving data.
Flashing yellow (3
Hz)
POST has failed on the port.
Off No link is present on the port.
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