Path test apparatus and method

Details Path test apparatus and method Path test apparatus and method

1978-10-26

1980-03-25

Stewart, David L.

Multiplex communications

Wide area network

Packet switching

H04J 314

Patent

active

041952065

ABSTRACT:
Path test apparatus and a method for verifying the continuity of a data path in a telephone system between an input portion and an output portion of a telephone interface which receives and transmits telephone signals where the telephone system operates in time frames each consisting of a plurality of time slots. The apparatus includes a signal generator which connects a test signal to a selected time slot in said input portion. Means are provided for connecting a data path between a time slot in the input portion and a time slot in the output portion whereby the test signal occurs in the output portion. Means are provided for detecting the test signal in the output portion, thereby verifying the continuity of the data path.

REFERENCES:
patent: 3959594 (1976-05-01), Srivastava
patent: 4048445 (1979-09-01), Ghisler

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