SYMPTOM: All voice terminal fights are out; none has a dial tone (continued).

Possible Cause 3: Faulty power outlet.

Do This

If

Then

 

 

 

Test the outlet by plugging

The appliance doesn't work

The outlet is faulty.

in an appliance such as a

 

 

 

 

lamp or a radio.

The appliance works

Go to Possible Cause 4.

 

 

 

Possible Cause 4: A module is loose.

Do This

If

Then

 

 

 

Set the control unit power

All modules are secure and

You've solved the problem.

switch to Off.

the red warning light goes

 

NOTE:

off

 

 

 

 

 

You will damage the

All modules are secure and

Contact your equipment

modules if you don't turn

the red warning light

supplier.

the power off.

remains on

 

Remove the top cover and

 

 

then remove and replace

 

 

each module, making sure

 

 

each is securely seated in its

 

 

slot. Replace the top cover

 

 

and fasten its screw. Set the

 

 

power switch back to On.

 

 

 

 

 

7-8Section 7: Troubleshooting the System

Page 187
Image 187
AT&T 999-507-144 system manual Possible Cause 3 Faulty power outlet, Possible Cause 4 a module is loose