JPS6412637A - Automatic restoration system of loopback type - Google Patents

Automatic restoration system of loopback type

Info

Publication number
JPS6412637A
JPS6412637A JP16692387A JP16692387A JPS6412637A JP S6412637 A JPS6412637 A JP S6412637A JP 16692387 A JP16692387 A JP 16692387A JP 16692387 A JP16692387 A JP 16692387A JP S6412637 A JPS6412637 A JP S6412637A
Authority
JP
Japan
Prior art keywords
faulty part
transmission lines
connection
recovered
extension
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
JP16692387A
Other languages
Japanese (ja)
Inventor
Koji Kobayashi
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.)
Azbil Corp
Original Assignee
Azbil 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 Azbil Corp filed Critical Azbil Corp
Priority to JP16692387A priority Critical patent/JPS6412637A/en
Publication of JPS6412637A publication Critical patent/JPS6412637A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To contrive to eliminate the need for a supervising device and to facilitate the configuration change in the entire system and the extension or the like by restoring the connection of both main and sub transmission lines automatically to the normal state when a faulty part is recovered. CONSTITUTION:If a communication equipment adjacent to a faulty part becomes a master station in the system where the communication is maintained by the loopback connection and both transmission lines 1, 2 at the faulty part are connected similarly, a recovery confirming signal is transmitted/received by using both the main and sub transmission lines 1, 2 at the faulty part and when the reception is normal as the result, it is discriminated that the fault is recovered to form the connection state at the normal state. Thus, when the communication equipment adjacent to the faulty part is a master station, the fault recovery is discriminated independently. Thus, no supervising device is required and the extension and configuration change as the entire system are facilitated.
JP16692387A 1987-07-06 1987-07-06 Automatic restoration system of loopback type Pending JPS6412637A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16692387A JPS6412637A (en) 1987-07-06 1987-07-06 Automatic restoration system of loopback type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16692387A JPS6412637A (en) 1987-07-06 1987-07-06 Automatic restoration system of loopback type

Publications (1)

Publication Number Publication Date
JPS6412637A true JPS6412637A (en) 1989-01-17

Family

ID=15840162

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16692387A Pending JPS6412637A (en) 1987-07-06 1987-07-06 Automatic restoration system of loopback type

Country Status (1)

Country Link
JP (1) JPS6412637A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE37401E1 (en) 1990-05-09 2001-10-02 Fujitsu Limited Fault recovery system of a ring network
CN108630579A (en) * 2017-03-16 2018-10-09 东和株式会社 Semiconductor package body configuration device, manufacturing device, configuration method and its application

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5980043A (en) * 1982-10-29 1984-05-09 Toshiba Corp Loop transmitter
JPS61248639A (en) * 1985-04-26 1986-11-05 Hitachi Ltd Supervisory system for restoration from transmission-line-fault
JPS6298839A (en) * 1985-10-25 1987-05-08 Hitachi Ltd Optical loop construction method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5980043A (en) * 1982-10-29 1984-05-09 Toshiba Corp Loop transmitter
JPS61248639A (en) * 1985-04-26 1986-11-05 Hitachi Ltd Supervisory system for restoration from transmission-line-fault
JPS6298839A (en) * 1985-10-25 1987-05-08 Hitachi Ltd Optical loop construction method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE37401E1 (en) 1990-05-09 2001-10-02 Fujitsu Limited Fault recovery system of a ring network
CN108630579A (en) * 2017-03-16 2018-10-09 东和株式会社 Semiconductor package body configuration device, manufacturing device, configuration method and its application

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