Excavating
Patent
1989-08-28
1991-11-19
Atkinson, Charles E.
Excavating
370 15, 371 205, 379 5, H04L 114, H04B 346
Patent
active
050661396
ABSTRACT:
A coupler verification test circuit includes first and second circuits one of which is disposed at a head end of an optical fiber network and the other of which is disposed at a subscriber interface unit to be attached to the network when the head end is not operational. The subscriber interface circuit transmits instructions to a transceiver board in the subscriber interface unit for transmission to the network head end whereat the circuit thereat generates either no return signal, an acknowledgment return signal, or a default return signal. The test circuit at the subscriber interface unit then analyzes the return signal and visually indicates to a craftsman whether or not the transceiver board and other components of the SIU are operating correctly, e.g. whether or not the acknowledgement signal was returned and detected.
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Foss Kristin K.
Giles Thomas E.
Narciso Ralph A.
Soderberg Paulmer M.
Atkinson Charles E.
Kovach Dennis E.
Raynet Corporation
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