Testing apparatus for transmission system

Details Testing apparatus for transmission system Testing apparatus for transmission system

1995-09-18

1997-10-07

Beausoliel, Jr., Robert W.

Excavating

371 27, 371 251, 371 205, 3642222, 3642651, 324 731, G01R 3128

Patent

active

056755880

ABSTRACT:
A testing apparatus for a transmission system provided with a test pattern insertion unit for inputting a test pattern to the transmission system to be tested and a test pattern confirmation unit for inspecting signals passing through the transmission system and discriminating if the test pattern was normally received, the testing apparatus being provided with a non-test pattern followup unit for sending out to the transmission system, a non-test pattern different from the test pattern for a predetermined time following the end of the testing, whereby continued output of an alarm due to a false synchronized state occurring in the testing apparatus is prevented.

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patent: 5228042 (1993-07-01), Gauthier et al.
patent: 5309428 (1994-05-01), Copley et al.

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