JPS6471239A - Duplicate supervision system in communication line - Google Patents

Duplicate supervision system in communication line

Info

Publication number
JPS6471239A
JPS6471239A JP62226595A JP22659587A JPS6471239A JP S6471239 A JPS6471239 A JP S6471239A JP 62226595 A JP62226595 A JP 62226595A JP 22659587 A JP22659587 A JP 22659587A JP S6471239 A JPS6471239 A JP S6471239A
Authority
JP
Japan
Prior art keywords
modems
supervisory
communication line
supervision data
route
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
JP62226595A
Other languages
Japanese (ja)
Inventor
Mayumi Araki
Yasuhide Kihara
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP62226595A priority Critical patent/JPS6471239A/en
Publication of JPS6471239A publication Critical patent/JPS6471239A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To supervise all MODEMs even if a fault takes place in a communication line by adopting a duplicated system for communication lines shared in common among the MODEMs. CONSTITUTION:If a fault takes place on a communication line (a) between MODEMs M3, M4, a supervision data sent from a supervision equipment 10 is sent to MODEMs M1, M2, M3 through the 1st supervisory route a1 to monitor the MODEMs. Then the supervision data sent from the equipment 10 is stored in a 1st supervisory route reception buffer in the MODEMs M1, M2, M3 to reply with a polling outputted through a terminal A. Moreover, the equipment 10 sends a supervision data from a terminal B through a 2nd supervisory route a2. MODEMs M6, M5, M4 receiving the supervision data store the supervision data in the 2nd supervisory route reception buffer to respond to the polling.
JP62226595A 1987-09-11 1987-09-11 Duplicate supervision system in communication line Pending JPS6471239A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62226595A JPS6471239A (en) 1987-09-11 1987-09-11 Duplicate supervision system in communication line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62226595A JPS6471239A (en) 1987-09-11 1987-09-11 Duplicate supervision system in communication line

Publications (1)

Publication Number Publication Date
JPS6471239A true JPS6471239A (en) 1989-03-16

Family

ID=16847649

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62226595A Pending JPS6471239A (en) 1987-09-11 1987-09-11 Duplicate supervision system in communication line

Country Status (1)

Country Link
JP (1) JPS6471239A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5421139A (en) * 1977-07-18 1979-02-17 Nippon Signal Co Ltd:The Communication system
JPS5981944A (en) * 1982-11-02 1984-05-11 Japanese National Railways<Jnr> Loop transmitting method of time-division information
JPS61237547A (en) * 1985-04-12 1986-10-22 Omron Tateisi Electronics Co Multiplex transmission equipment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5421139A (en) * 1977-07-18 1979-02-17 Nippon Signal Co Ltd:The Communication system
JPS5981944A (en) * 1982-11-02 1984-05-11 Japanese National Railways<Jnr> Loop transmitting method of time-division information
JPS61237547A (en) * 1985-04-12 1986-10-22 Omron Tateisi Electronics Co Multiplex transmission equipment

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