1-14
Status
LED
System status
LED
(PWR/SYS)
Seven-segment LED
Description
Steady red
The LED flashes
F
.
Fan failure
Steady red
The LED flashes
t
.
Over-temperature alarm
The LED displays
C
.
The current switch is the
command switch in the cluster.
The LED displays
S
.
The current switch is a member
switch in the cluster.
The LED displays
c
.
The current switch is a
candidate switch in the cluster.
Steady green
The LED displays the
1
.
The current switch operates
independently.
The seven-segment LED, the system status LED, and the port mode LED on the S5500-28C-PWR-SI
or S5500-52C-PWR-SI that supports PoE can display the PoE power consumption percentage of the
switch. For details, refer to
Table 1-12
.
Table 1-12
Seven-segment LED description (2)
LED status
LED
Port mode
LED (Mode)
System
status LED
(PWR)
Seven-segment LED
Description
Unit
Flashing
green (1 Hz)
(PoE mode)
Steady
green
The LED displays the
specific signs.
0 - 20%
21 - 40%
41 - 60%
61 - 80%
81 - 100%
For example, when the LED
displays the
sign, it indicates
that the PoE power currently
provided by the switch occupies 0
to 20% of the total PoE power that
the switch can provide.
10/100/1000Base-T Auto-Sensing Ethernet Port Status LED
The port mode LED and the 10/100/1000Base-T auto-sensing Ethernet port status LED together
indicate the port operation status. Refer to
Table 1-13
for details.
