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Replace the Tie Line Module, then retest the
condition.
> If the condition has been corrected, the original
Tie Line Module is faulty. Go back to step 8.
> If the condition has not been corrected, stop
testing and call the equipment supplier.
If the problem was either the tie line port or the Tie
Line Module, call the equipment supplier when you
have finished testing.
Connect the volt meter between the T1 lead and
ground at the 66-type block for the tie line being
tested.
> If the voltage is 48 volts, go on to step 21.
> If the voltage is not 48 volts, go to step 19.
Select the tie line being tested and go off-hook at
station A.
Reconnect the volt meter between the T 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 croft set between leads T1 and Rl. 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 to send dial tone out
to the port king tested.
> If you hear dial tone and can break it, go to step 8
and select the next tie line for testing.
4-28 Tie Line Troubleshooting