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Tie Line Troubleshooting
TESTING TIE LINES
Before performing the following tests, make sure that the
tie lines for
the system are connected and properly
configured.
These tests procedures verify proper
installation for Type 1 Standard, Type 1 Compatible, and
Type 5 Simplex, or E&M signaling types. Refer to page
1-48 for a description of these signaling types. The
verification process can seine as a means to troubleshoot
problems with tie lines.
WARNING:
The protected mode must be used
whenever the E&M leads extend out-of-building and
are not connected to the network interface. See pages
1-47 and 1-48.
Testing Type 1
Standard Tie Lines
To test tie lines configured for Type 1 Standard, follow
these steps:
1
Connect an attendant console to station port 10.
2
Connect a printer to the SMDR port on the Processor
Module. Set the printer port to 1200 baud.
3
Set the Tie Line Module switches to E&M
signaling/unprotected mode. Refer to “Administering
Tie Lines” on page 3-50 for instructions.
4
Administer tie line port 1 to Type 1 Compatible.
Administer the port(s) being tested (ports 2,3, or 4) to
Type 1 Standard. Refer to “Selecting the Signal Type”
on page 3-55 for instructions. Administer all signaling
parameters as specified by Form lb, System Form—
-
Tie Lines.
5
Assign the tie lines to two stations, called station A
and station B in this procedure, in order to conduct the
tests. Assign the tie lines to a line pool (890 through
899).
Tie Line Troubleshooting
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