AT&T 518-600-016 Telephone User Manual


 
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21
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24
Connect the volt meter between the E lead and ground
at the 66-type block for the tie line being tested.
> If the voltage
is 0 volts, go to step 21.
> If the voltage
is not 0 volts, go to step 19.
Select the tie line
being tested and go off-hook
station A.
Reconnect the volt meter between the M lead and
ground at the 66 type block
NOTE:
This measurement must be made within 5
seconds after going off-hook.
> If the voltage is 0 volts, go on to step 23.
> If the voltage is not 0 volts, go to step 19.
Connect a craft set between leads T1 and R1. Select
the tie line being tested using station A. The receiving
end should provide dial tone.
NOTE:
The tie line dial tone option should be
administered for remote in order to send dial
tone out to the port being tested.
> If you hear dial tone and can break it, go to step 8
and select the next tie line for testing.
> If you hear dial tone and cannot break it go to step
24.
> If you do not hear dial tone, go to step 19.
Connect a craft set between leads T and R. Select the
tie line being tested using station B. The transmitting
end should provide dial tone.
> If you hear dial tone and can break it, go to step 8
and select the next tie line for testing.
> If you do not hear dial tone, or you hear dial tone
and cannot break it go to step 19.
4-22 Tie Line Troubleshooting