AT&T 518-600-016 manual Tie Line Troubleshooting

Tie Line Troubleshooting

TESTING TIE LINES

Testing Type 1 Standard 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 1-48for 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 1-47and 1-48.

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.

4Administer 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.

5Assign 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).

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