Line protection switch equipment

Details Line protection switch equipment Line protection switch equipment

1986-08-15

1988-03-22

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Series connected sections with faulty section disconnect

379 5, 379221, 379273, H02H 726

Patent

active

047333200

ABSTRACT:
A line protection switch equipment (LPSW) in a communication system, having a plurality of two-input and two-output switches connected between lines including a protection line and working lines, the switches being connected in series by a loop line which forms a loop, whereby by switching the switches connected to a faulty working line and to a protection line, the faulty working line is switched to become a protection line, and the former protection line becomes a working line.

REFERENCES:
patent: 3576951 (1971-05-01), Uchida et al.
patent: 3864533 (1973-06-01), Erlund
patent: 4007339 (1977-02-01), Joel, Jr.
patent: 4480193 (1984-10-01), Blahous et al.
Fujitsu Sci. Tech. J. 21, 1(Mar. 1985), 50-52, "405 Mbit/s Single-Mode Optical Fiber Transmission System".
ICC'84 Links for the Future IEEE International Conference on Communications.

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