Table 6. Troubleshooting Using the Status LEDs

LED

Indicates

Possible

Possible

Status

Problem

Solution

 

 

 

 

 

 

 

1 Blink

No light

Bad fiber

Clean RX

 

received

connections

fiber on

 

 

 

 

both ends

 

 

 

 

 

 

 

 

Broken fiber

Check and fix

 

 

 

 

RX fiber link

 

 

 

 

 

 

 

 

Bad port on

Try another

 

 

 

other end

port or

 

 

 

 

replace unit

 

 

 

 

2

Jabber

Jabbering

Follow

Blinks

 

 

controller

vendor’s

 

 

 

 

instructions

 

 

 

 

 

 

 

 

Noisy AUI

Replace AUI

 

 

 

cable

cable

 

 

 

 

3

Partition

Bad port on

Try another

Blinks

 

 

other end

port or

 

 

 

 

replace unit

 

 

 

 

 

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3Com 5101T-FB-SMA, 5101T-FB-FC, 5101T-FB-ST manual Troubleshooting Using the Status LEDs