Loop transmission system and method of controlling the loop-back

Details Loop transmission system and method of controlling the loop-back Loop transmission system and method of controlling the loop-back

1983-08-22

1985-09-17

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 88, 34082505, H04J 308

Patent

active

045424969

ABSTRACT:
A loop transmission system and a method of controlling the loop-back condition thereof. The loop transmission system comprises a plurality of node stations, a supervisory station, and two duplicate loop transmission lines which transmit signals in opposite directions. In the loop transmission system, the supervisory station first sends out loop-back commands via both of the duplicate loop transmission lines when faults are detected on both of the duplicate loop transmission lines at the same time. Each of the node stations establishes a loop-back path while retaining a connection path to a succeeding node station upon the receipt of a loop-back command. The loop-back path is released only in the node stations which receive signals normally from both of the duplicate loop transmission lines when the supervisory station sends release commands to the node stations after sending the loopback commands.

REFERENCES:
patent: 3569632 (1971-03-01), Beresin et al.
patent: 3652798 (1972-03-01), McNeilly et al.
patent: 3859468 (1975-01-01), Smith et al.

Affiliated with

Also associated with

Rating

Loop transmission system and method of controlling the loop-back does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Loop transmission system and method of controlling the loop-back, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Loop transmission system and method of controlling the loop-back will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-373289