Method for controlling bidirectional line protection switching b

Details Method for controlling bidirectional line protection switching b Method for controlling bidirectional line protection switching b

1997-07-11

1999-07-20

Cuchlinski, Jr., William A.

Communications: electrical

Continuously variable indicating

With meter reading

34082506, 370225, 370223, 370224, 379 26, 379242, 379258, 379268, H04L 100

Patent

active

059261021

ABSTRACT:
A method for controlling bidirectional line protection switching by using a remote defect indication signal. The method includes the following steps of: inserting and transmitting a remote defect indication signal through the opposite directional link, in case the receiving end of working line detects a defect while a traffic is transmitted via a bidirectional link, and then switching to a back-up line by controlling the selector of the receiving station; and switching to the protection line by controlling the selector of the transmitting station, in case the remote defect indication signal is detected via the opposite directional link.

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International Telecommunication Union, Characteristics of Synchronous Digital Hierarchy (SDH) Equipment Functional Blocks, ITU-T Recommendation G. 783, Jan. 1994, pp. 62-71.

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