JPS6473920A - Transmission line switching control system - Google Patents

Transmission line switching control system

Info

Publication number
JPS6473920A
JPS6473920A JP23143287A JP23143287A JPS6473920A JP S6473920 A JPS6473920 A JP S6473920A JP 23143287 A JP23143287 A JP 23143287A JP 23143287 A JP23143287 A JP 23143287A JP S6473920 A JPS6473920 A JP S6473920A
Authority
JP
Japan
Prior art keywords
station
switch
changeover
transmission line
control system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP23143287A
Other languages
Japanese (ja)
Inventor
Toru Kojima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP23143287A priority Critical patent/JPS6473920A/en
Publication of JPS6473920A publication Critical patent/JPS6473920A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To reduce the time till the end of changeover nearly to half by switching a reception switch without awaiting the response of the result of changeover of a transmission switch. CONSTITUTION:A station A detecting a line fault 101 from a station B to the station A sends a command signal 102 to switch a transmission switch 105 of the station B. Then the station A changes over a reception switch 104 without awaiting an acknowledge signal 103 in response to the command signal 102 from the station B. Then the station B tries to change over the transmission switch 105 by the command signal 102 from the station A and returns the acknowledge signal 103 to the station A. When the changeover of the station B is successful in the station A depending on the content of the acknowledge signal 103, the reception switch 104 is left as it is, and when the changeover of the station B is unsuccessful, the reception switch is reset 104 to complete the switching. Thus, the switching time of the transmission line is reduced.
JP23143287A 1987-09-16 1987-09-16 Transmission line switching control system Pending JPS6473920A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23143287A JPS6473920A (en) 1987-09-16 1987-09-16 Transmission line switching control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23143287A JPS6473920A (en) 1987-09-16 1987-09-16 Transmission line switching control system

Publications (1)

Publication Number Publication Date
JPS6473920A true JPS6473920A (en) 1989-03-20

Family

ID=16923467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23143287A Pending JPS6473920A (en) 1987-09-16 1987-09-16 Transmission line switching control system

Country Status (1)

Country Link
JP (1) JPS6473920A (en)

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