6. Messages and Troubleshooting

Troubleshooting

The unit is designed to provide many years of trouble-free service. However, if a problem occurs, refer to Table 6-2, Troubleshooting, for possible solutions.

Table 6-2. Troubleshooting

Symptom

Possible Cause

Solutions

 

 

 

Alarm LED is on.

A system failure has

Refer to Table 4-1, Health and

 

occurred.

Status Messages, in Chapter 4,

 

 

Monitoring the Unit, for the

 

 

recommended action.

 

 

 

Cannot access the unit

The terminal is not set up for

Check the cable and

via the ATI.

the correct rate or data

Tconnections.

 

format, or the unit is

Ensure that the unit is

 

configured so it prevents

 

configured properly in the

 

access.

 

DSLAM. Verify its IP

 

 

 

 

address.

 

 

Reset the unit.

 

 

 

Device Fail

The unit detects an internal

TReset the unit.

appears on the System

hardware failure.

Contact your service

and Test Status screen

 

 

representative.

under Self-Test results.

 

 

 

 

 

 

No power, or the LEDs

The unit is not properly

Verify that the unit is properly

are not lit.

seated in the DSLAM.

inserted.

 

 

 

 

There is no power to the

Verify that the DSLAM has

 

DSLAM.

power.

 

 

 

An LED is not lit.

LED is out.

Run the Lamp Test. If the LED

 

 

in question does not flash with

 

 

the other LEDs, then contact

 

 

your service representative.

 

 

 

Not receiving data.

The network or DSX-1 port

Check network and DSX-1

 

cables are not connected

port cables.

 

(check front panel LEDs for

Check Health and Status

 

more information).

 

Tmenu.

 

 

Run Loopback tests. Refer to

 

 

Chapter 5, Testing.

 

 

 

 

A test is being executed on

Stop the test or wait for the test

 

the unit (check the TEST LED

to end.

 

on the front panel).

 

 

 

 

 

The far-end device is offline.

Make sure the far-end device

 

 

is on.

 

 

 

Power-On Self-Test

The unit has detected an

TReset the unit and try again.

fails. Only Alarm LED

internal hardware failure.

Contact your service

is on after power-on.

 

 

representative.

 

 

 

 

 

8784-A2-GB20-30

February 2001

6-5

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Paradyne 8784 manual Troubleshooting Symptom Possible Cause Solutions