3com Switch 4500G 24-Port Switch 4500G 48-Port Switch 4500G PWR 24-Port Switch 4500G PWR 48-Port Manual De Usuario

C

HAPTER

 1: I

NTRODUCING

 

THE

 S

WITCH

 4500G F

AMILY

The Switch 4500G 24-Port and 48-Port units provide LEDs on the front panel to 
allow you to monitor the switch. Table 3 describes these LEDs. You can use the 
mode button on the front panel to switch the LEDs display mode (rate mode or 
duplex mode). 

Table 3    Switch 4500G 24-Port and 48-Port Front Panel LEDs 

Mode LED

Mode

Rate 
mode

Green, ON The port status LEDs are showing 

the port rates.

Duplex 
mode

Yellow, ON The port status LEDs are showing 

the duplex mode of the ports.

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 system 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.