Optical terminal system having self-monitoring function

Details Optical terminal system having self-monitoring function Optical terminal system having self-monitoring function

1995-06-07

1996-09-17

Boudreau, Leo

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359143, 359152, 359158, 359166, H04B 1008, H04B 1000

Patent

active

055574378

ABSTRACT:
An optical terminal system having self-monitoring function is disclosed, which includes a high-level group loopback section for internally looping back a serial electric signal, a low-level group loopback section for internally looping back a parallel electric signal, a self-loop section for connecting a receiver device and a transmitter device to loop an electric signal received by the receiver device directly to the transmitter device, and a self-monitoring controller for performing a self-monitoring test on respective components of the receiver device and transmitter device by using the self-loop section and either one of the high-level group loopback section and the low-level group loopback section. The optical terminal system can selfcheck the functions thereof through self-monitoring without depending on a network.

REFERENCES:
patent: 4256485 (1982-10-01), Boschuete et al.
patent: 5075792 (1991-12-01), Brown et al.
patent: 5172260 (1992-12-01), Takatsu

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