3com 4800G Installation Instruction

C

HAPTER

 1: P

RODUCT

 O

VERVIEW

Redundant power 
system LED 

RPS 

Solid green

The AC power supply is normal and 
the RPS is connected and works 
normally. 

Solid yellow

The RPS input is normal, but an AC 
input failure occurs or no AC power 
is connected. 

OFF

No RPS is connected. 

Module LED 

MOD  Solid green

The module is in position and works 
normally. 

Flashing yellow

The switch does not support the 
module or a module failure occurs. 

OFF

No module is installed. 

7-segment digital LED  Unit 

POST running

The power LED flashes green  The LED displays the POST test ID. 

  

POST failed

The power LED flashes red 

The LED flashes the POST test ID of 
the failed test. 

  

Software loading

The power LED flashes green. A bar rotates clockwise around the 

LED. 

  

Fan failure

The power LED is solid red. 

The LED displays F. 

  

Over-temperature alarm

The power LED is solid red. 

The LED displays t. 

  

Cluster state

The power LED is solid green.  For a command switch, the LED 

displays C.

For a member switch, the LED 
displays S.

For a candidate switch, the LED 
displays c.

The LED displays 1 if there is only one 
unit. 

Table 4   LEDs on the front panel of the Switch 4800G 24-Port