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Table 12 System status LED description
LED
PWR
Port mode LED
The port mode LED indicates the type of information that the port LEDs are showing.
You can use the port LED mode switching button to change the type of displayed port information.
Table 13 Port mode LED description
LED
Mode
Seven-segment LED
The seven-segment LED, together with the system status LED, shows detailed system operating information
(see
Table
14).
Table 14 Seven-segment LED description (I)
LED
Unit
Status
Steady green
Flashing green (1
Hz)
Steady red
Flashing yellow (1
Hz)
Off
Status
Steady green
Steady yellow
Status
System status
Seven-segment (Unit) LED
LED (SYS)
The LED displays numbers one by
one.
Flashing green
The LED displays flashing numbers.
Flashing red
A bar rotates clockwise around the
LED.
Flashing green
Description
The switch is operating properly.
The switch is performing power-on self test (POST).
POST has failed.
Some ports have failed to pass POST.
The switch is powered off.
Description
The port LEDs are showing port rates.
The port LEDs are showing duplex modes.
37
Description
POST is running, and the LED
displays the ongoing test item ID.
POST has failed, and the LED
flashes the ID of the failed test item.
Software is loading.
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