3com S8520X-28S 0235A370 User Manual
Product codes
0235A370
1-10
LED
Status
Description
Steady green
Hot swappable power module slot 2 is installed with a power
module, and the power output is normal.
module, and the power output is normal.
Steady yellow
Hot swappable power module slot 2 is installed with a power
module, but an output failure occurs.
module, but an output failure occurs.
PWR2
Off
No power module is installed in hot swappable power
module slot 2, or no power is input.
module slot 2, or no power is input.
Seven-Segment LED
The seven-segment LED and the system status LED together indicate the operating status of the
device. For details, refer to
device. For details, refer to
Table 1-9
Seven-segment LED description
Status
LED
System status
LED (SYS) status
Seven-segment LED status
Description
Flashing green
The LED displays the specific numbers one
by one.
by one.
POST running. The LED
displays the POST test
ID.
displays the POST test
ID.
Flashing red
The LED flashes the specific numbers.
POST failed. The LED
flashes the POST test ID
of the failed test.
flashes the POST test ID
of the failed test.
Flashing green
A bar rotates clockwise around the LED.
Software loading
Steady red
The LED flashes and displays F.
Fan failure
Steady red
The LED flashes and displays t.
Over-temperature alarm
The LED displays C.
The current switch is the
command switch in the
cluster.
command switch in the
cluster.
The LED displays S.
The current switch is a
member switch in the
cluster.
member switch in the
cluster.
The LED displays c.
The current switch is a
candidate switch in the
cluster.
candidate switch in the
cluster.
Unit
Steady green
The LED displays the specific numbers.
The member ID of the
current switch (A stands
for 10).
current switch (A stands
for 10).