AT&T 518-600-016 manual General Tests

Testing a Single-Line

Network Interface

Testing a Two-Line Network Interface with an Adapter

Testing a 66-Type Block

Plug the telephone’s modular cord into the network interface and listen for a dial tone.

•If a dial tone is present, the trouble is in the control unit or the wiring.

•If no dial tone is present, have the local telephone company check the line and the network interface.

Plug the telephone’s modular cord into the network interface and listen for a dial tone.

•If a dial tone is present the trouble is in the control unit or the wiring.

•If no dial tone is present, replace the adapter. If there is still no dial tone, have the local telephone company check the line and the network interface.

Use a telephone that has clip leads and test each outside line for a dial tone. Make sure to remove the bridging clip from the block to isolate the outside line from the MERLIN II system.

•If a dial tone is present on some lines and not on others, check the wiring for damage or broken connections.

•If a dial tone is present on all lines, check the wiring to the control unit.

•If no dial tones are present, have the local telephone company check the lines and the network interface.

General Tests 4-57