3Com 6412M-25-TP manual Port Status, Action

Table

4-1

(Page 2

of 2).

Problem Determination Using Port Status LEDs

Status

LED

Port

Status

Possible

Corrective

Action

Cause

Blinking

Enabled

No

connector

isAttach

a

connector

to

the

port,

attached

to

theor ensure that there is a device

port,

or

thereat isthe

end of

the

connection.

no

device

at

the

end

of

the

connection.

Cable

attached1)

Change

the

cable.

to the port is2) Perform wrap tests to

faulty.

determine

the

failing

component.

3) Check the cable type.

Remote

station Check the

remote

station.

attached

to

the

the station

is

turned

OFF,

turn

port

If

is either

the

station. If

the station

is

turned

OFF

ON

or

restart

the

inoperational.

inoperational,

application

that

is

running

on it.

Maximum

link

See

Table 2-3

on

page 2-12

for

distance

the maximum distances for valid

exceeded.

connections.

4-4 25 Mbps ATM Module - Installation and User's Guide