Optical communication system having an improved protection line

Details Optical communication system having an improved protection line Optical communication system having an improved protection line

1991-01-03

1992-02-25

Coles, Sr., Edward L.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359117, H04B 1008, H04J 1400

Patent

active

050917960

ABSTRACT:
A communication system includes a plurality of stations, a first working line coupling adjacent stations among the plurality of stations, a second working line passing predetermined stations among the plurality of stations without dropping therein, and a protection line provided in common for the first working line and the second working line, a supervisory signal always passing through the protection line. Each of the stations includes an internal circuit for receiving an input transmission signal from the first working line and sending an output transmission signal to the first working line. Each station also includes a switching portion for passing the protection line without dropping in each of the stations in a normal mode and for connecting the protection line to the internal circuit in an alarm mode so that the input transmission signal is received from an upstream side via the protection line instead of the first working line and the supervisory signal which is generated from the output transmission signal is output toward a downstream side via the protection line.

REFERENCES:
patent: 4679186 (1987-07-01), Lea
patent: 4680776 (1987-07-01), Ikeuchi et al.
patent: 4967406 (1990-10-01), Yagi et al.

Affiliated with

Also associated with

Rating

Optical communication system having an improved protection line does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical communication system having an improved protection line , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical communication system having an improved protection line will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1896522