3com Switch 4500G 24-Port Switch 4500G 48-Port Switch 4500G PWR 24-Port Switch 4500G PWR 48-Port ユーザーズマニュアル

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Switch 4500G PWR 24-Port and 48-Port Front Panel LEDs
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Switch 4500G PWR 
24-Port and 48-Port 
Front Panel LEDs
Table 4 describes the 
Switch 4500G PWR 24-Port and PWR 48-Port units’ LEDs.
Table 4   Switch 4500G PWR 24-Port and 48-Port Front Panel LEDs 
LED
Label
Status
Description
Mode LED
Mode
Rate mode
Green, ON
The port status LEDs are 
showing the port rate. 
Duplex 
mode
Yellow, ON
The port status LEDs are 
showing the duplex mode of 
the port. 
PoE mode
Green, 
blinking (1 Hz)
The port status LEDs are 
showing the PoE status of the 
port. 
Power LED
PWR
Green, ON
The switch starts normally. 
Green, blinking (1 Hz)
The system is performing 
power-on self test (POST). 
Red, ON
The POST fails the POST. 
Yellow, blinking (1 Hz)
One or more ports fail the 
POST. 
OFF
The switch is powered off. 
Module LED
Module 
(MOD)
Green, ON
The module is installed and 
operates normally. 
Yellow, blinking
The module is not supported 
or is in trouble. 
OFF
The module is not installed.