Circuit for switching a protection line between a common section

Details Circuit for switching a protection line between a common section Circuit for switching a protection line between a common section

1996-10-23

2000-04-18

Horabik, Michael

Communications: electrical

Continuously variable indicating

With meter reading

370242, 370247, 379 26, 371 48, 324539, 361 88, H04Q 100, H04Q 300

Patent

active

060520612

ABSTRACT:
A circuit for performing a switching of a protection line between a common section and a channel section includes a common section and a channel section connected by signal lines. The common section has a working interface circuit and a protecting interface circuit. The channel section only has a working interface circuit. The working interface circuit of the common section is operably connected to the working interface circuit of the channel section by a working cable. The protecting interface circuit of the common section is connected to the working interface circuit of the channel section by a protecting cable. When a disconnection or a slip of the working cable occurs, a signal from the working interface circuit of the common section is transmitted and inputted into the protecting interface circuit via the protecting cable.

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