JPS57119534A - Fault braketing system - Google Patents

Fault braketing system

Info

Publication number
JPS57119534A
JPS57119534A JP56006078A JP607881A JPS57119534A JP S57119534 A JPS57119534 A JP S57119534A JP 56006078 A JP56006078 A JP 56006078A JP 607881 A JP607881 A JP 607881A JP S57119534 A JPS57119534 A JP S57119534A
Authority
JP
Japan
Prior art keywords
station
monitored
fault
faulty
stations
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
JP56006078A
Other languages
Japanese (ja)
Inventor
Kenji Kagaya
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 JP56006078A priority Critical patent/JPS57119534A/en
Publication of JPS57119534A publication Critical patent/JPS57119534A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C25/00Arrangements for preventing or correcting errors; Monitoring arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To achieve the recovery of a fault in its early stage by a remote centralized monitor system, by detecting and disconnecting a station to be monitored in a fault state by a monitoring station when the station to be monitored becomes faulty in a data-signal transmission state. CONSTITUTION:If one of stations 91-9n to be monitored while sending signals becomes faulty, a monitoring station 10 connects a bracketing device 11 for the stations to be monitored to a fault bracketing circuit 13 to specify the station 91 to be bracketed, thereby sending a bracketing signal. When a signal received by the station 91 is addressed to it, a relay RL1 is driven to disconnect the station from a data circuit 12 through a contact rl. When the station 10 has no received data, the station 91 is regarded as a faulty one. When the received data continues, it is judged that the station is normal, and a recovery signal is sent to make a connection with the data circuit 12. Thus, said operation is performed successively with regard to the stations 92-9n to be monitored detecting the faulty station.
JP56006078A 1981-01-19 1981-01-19 Fault braketing system Pending JPS57119534A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56006078A JPS57119534A (en) 1981-01-19 1981-01-19 Fault braketing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56006078A JPS57119534A (en) 1981-01-19 1981-01-19 Fault braketing system

Publications (1)

Publication Number Publication Date
JPS57119534A true JPS57119534A (en) 1982-07-26

Family

ID=11628524

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56006078A Pending JPS57119534A (en) 1981-01-19 1981-01-19 Fault braketing system

Country Status (1)

Country Link
JP (1) JPS57119534A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6150360U (en) * 1984-09-06 1986-04-04
JPS61224760A (en) * 1985-03-29 1986-10-06 Fujitsu Ltd Modulator-demodulator
JPS6288454A (en) * 1985-10-15 1987-04-22 Fujitsu Ltd Confliction diagnosing system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6150360U (en) * 1984-09-06 1986-04-04
JPS61224760A (en) * 1985-03-29 1986-10-06 Fujitsu Ltd Modulator-demodulator
JPS6288454A (en) * 1985-10-15 1987-04-22 Fujitsu Ltd Confliction diagnosing system

Similar Documents

Publication Publication Date Title
CA2048076A1 (en) Video monitoring system
EP0144953A3 (en) Method of detecting recovery from fault in a data transmission system which effects loopback control
JPS57119534A (en) Fault braketing system
JPS62207033A (en) Power line carrier communication equipment
JPS57131145A (en) Transmission line switching device of transmission system
JPS54139419A (en) Switching system for double-system transmission line
JPS5654179A (en) Automatic monitoring method for television picture
JPS641350A (en) Gateway backing-up system
JPS5715539A (en) Monitoring system for transmission system
JPS57124947A (en) Failure detection system
JPS5741056A (en) Fault time bypass system of loop transmission line
JPS61156928A (en) Automatic switch system of communication line
JPS587091B2 (en) Subscriber line monitoring method
JPS57129047A (en) Loop connecting method
JPS57187669A (en) Detecting method for fault of submarine coaxial cable
JPS568949A (en) Fault detection system
JPS5746547A (en) Data transmission system
JPS6427339A (en) Active type optical star coupler
JPS5773547A (en) Remote monitor and control system
JPS56116354A (en) Failure monitor system
JPS56124903A (en) Mobile monitoring equipment
JPS54143004A (en) Data collector unit
JPS5762644A (en) Supervisory system for multiplex communication line
JPS5792945A (en) Data highway monitoring system
JPH0234504B2 (en)