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Digital telephones line engineering Page 295 of 504
Telephones and Consoles Description, Installation, and Operation
Figure 47
Engineer a telephone line (Part 5 of 8)
Install digital telephone
and check performance
if not already done.
Is the
performance
OK?
[ 20 ]
[ 21 ]
Perform loop diagnostics
and measurements.
(Procedures 4,5 and 6)
[ 22 ]
[ 23 ]
NO
Go to
Step 24
Go to
Step 22
Go to
Step 27
NO
YES
553-AAA2057
End of
procedure.
Are the loop
diagnostics and
noise measurements
already done?