Testing apparatus for transmission system
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United States of America Patent
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Oct 7, 1997
Grant Date -
N/A
app pub date -
Sep 18, 1995
filing date -
Sep 20, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
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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