1-12
System Status LED
The system status LED helps you determine the working status of the switch. Refer to
Table 1-7
for the
details.
Table 1-7
System status LED description
LED
Status
Description
Steady green
The switch is started normally.
Flashing green (1 Hz)
The system is performing power-on self test (POST).
Steady red
POST failed.
Flashing yellow (1 Hz)
POST on some ports failed.
SYS/PWR
Off
The switch is powered off.
Hot Swappable Power Module Status LEDs
The hot swappable power module status LEDs help you determine the working status of a hot
swappable power module. Only the S5500-20TP-SI supports this type of LEDs. Refer to
Table 1-8
for
details.
Table 1-8
Description of the hot swappable power module LEDs
LED
Status
Description
Steady green
Hot swappable power module slot 1 is installed with a power
module, and the power output is normal.
Steady yellow
Hot swappable power module slot 1 is installed with a power
module, but an output failure occurs.
PWR1
Off
No power module is installed in hot swappable power
module slot 1, or no power is input.
Steady green
Hot swappable power module slot 2 is installed with a power
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.
PWR2
Off
No power module is installed in hot swappable power
module slot 2, or no power is input.
RPS Status LED
The RPS status LED helps you determine the working status of the RPS of the switch. Refer to
Table
1-9
for details.
Table 1-9
RPS status LED
LED
Mark
Status
Description
RPS status LED
(S5500-28C-SI and
RPS
Steady green
The AC input is normal, and the RPS is in the
position or works normally.
