22
System status
LED (SYS) status Seven-segment LED ((Unit) status
Description
The LED displays a lowercase
c
character.
The switch is a candidate switch for a
cluster.
The LED displays a number.
The member ID of the switch (the
character
A
represents 10).
Table 16
Seven-segment LED description (II)
Port mode LED
(Mode) status
System status
LED (SYS) status
Seven-segment (Unit)
LED status
Description
Flashing green (1
Hz) (PoE mode)
Steady green
The LED displays
different signs.
For example, the
sign indicates that
the switch is outputting 0 to 20% of the
maximum PoE output power.
10/100/1000Base-T Ethernet port LED
Each 10/100/1000Base-T auto-sensing Ethernet port has a status LED to show port operating status and
activities. The port mode LED indicates the type of port status information (for example, port rate or
duplex mode) that the port LEDs are showing. You can use the port LED mode switching button to change
the type of displayed port information.
Table 17
10/100/1000Base-T auto-sensing Ethernet port LED description
Port mode LED
(Mode) status
Port LED status
Description
Steady green
(rate mode)
Steady green
The port is operating at 1000 Mbps. The port LED fast flashes
when the port is sending or receiving data.
Steady yellow
The port is operating at 10/100 Mbps. The port 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 (3 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 experiencing a PoE failure.
Flashing yellow (3 Hz)
POST has failed on the port.
Off
The port is not supplying PoE power.
0 - 20%
21 - 40%
41 - 60%
61 - 80%
81 - 100%