JPS5715539A - Monitoring system for transmission system - Google Patents

Monitoring system for transmission system

Info

Publication number
JPS5715539A
JPS5715539A JP8981980A JP8981980A JPS5715539A JP S5715539 A JPS5715539 A JP S5715539A JP 8981980 A JP8981980 A JP 8981980A JP 8981980 A JP8981980 A JP 8981980A JP S5715539 A JPS5715539 A JP S5715539A
Authority
JP
Japan
Prior art keywords
monitor
station
failure
relay
signal
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.)
Granted
Application number
JP8981980A
Other languages
Japanese (ja)
Other versions
JPS6052618B2 (en
Inventor
Takeshi Otsuka
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
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP55089819A priority Critical patent/JPS6052618B2/en
Publication of JPS5715539A publication Critical patent/JPS5715539A/en
Publication of JPS6052618B2 publication Critical patent/JPS6052618B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/40—Monitoring; Testing of relay systems

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

PURPOSE:To specify the failure producing relay station and system at the monitoring station with a simple constitution, by applying an alarm indicating the relay stage in failure to a monitor signal and representing an alarm indicating the system in failure with a signal transmission as temporary interruption, in a transmission system consisting of multiplex system and multistage realy. CONSTITUTION:A main signal is transmitted to a monitor station 400 via relay stations 100-300 from transmission lines 1-3...41-43 a monitor signal from each relay station is transmitted to the monitor station 400 with monitor signal transmission paths 14-44. An alarm such as low signal level from relay devices 101-103... 401-403 constituting each relay station and monitor station is specified for the failure station with a monitor device 405, from the interruption of monitor signals from monitor signal transmitters 104-404. On the other hand, in the relay device in failure, the line is interrupted for a fixed time at the output point, this is transmitted to a monitor 405 via signal transmission line, and the system in failure can be specified in matching with the specification of the station in failure.
JP55089819A 1980-07-01 1980-07-01 Transmission system monitoring method Expired JPS6052618B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55089819A JPS6052618B2 (en) 1980-07-01 1980-07-01 Transmission system monitoring method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55089819A JPS6052618B2 (en) 1980-07-01 1980-07-01 Transmission system monitoring method

Publications (2)

Publication Number Publication Date
JPS5715539A true JPS5715539A (en) 1982-01-26
JPS6052618B2 JPS6052618B2 (en) 1985-11-20

Family

ID=13981351

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55089819A Expired JPS6052618B2 (en) 1980-07-01 1980-07-01 Transmission system monitoring method

Country Status (1)

Country Link
JP (1) JPS6052618B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63161758A (en) * 1986-12-24 1988-07-05 Nec Corp Data communication line supervisory system
JPH02118886U (en) * 1989-03-13 1990-09-25

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63161758A (en) * 1986-12-24 1988-07-05 Nec Corp Data communication line supervisory system
JPH02118886U (en) * 1989-03-13 1990-09-25

Also Published As

Publication number Publication date
JPS6052618B2 (en) 1985-11-20

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