CA2003617A1 - Systeme de controle de lignes de transmission - Google Patents

Systeme de controle de lignes de transmission

Info

Publication number
CA2003617A1
CA2003617A1 CA2003617A CA2003617A CA2003617A1 CA 2003617 A1 CA2003617 A1 CA 2003617A1 CA 2003617 A CA2003617 A CA 2003617A CA 2003617 A CA2003617 A CA 2003617A CA 2003617 A1 CA2003617 A1 CA 2003617A1
Authority
CA
Canada
Prior art keywords
monitoring
transmission line
section
line
quality
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
CA2003617A
Other languages
English (en)
Other versions
CA2003617C (fr
Inventor
Hideyuki Motoori
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
Publication of CA2003617A1 publication Critical patent/CA2003617A1/fr
Application granted granted Critical
Publication of CA2003617C publication Critical patent/CA2003617C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
  • Small-Scale Networks (AREA)
  • Selective Calling Equipment (AREA)
CA002003617A 1988-11-28 1989-11-22 Systeme de controle de lignes de transmission Expired - Fee Related CA2003617C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63-299882 1988-11-28
JP29988288A JPH0622353B2 (ja) 1988-11-28 1988-11-28 伝送路の監視方式

Publications (2)

Publication Number Publication Date
CA2003617A1 true CA2003617A1 (fr) 1990-05-28
CA2003617C CA2003617C (fr) 1993-07-20

Family

ID=17878088

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002003617A Expired - Fee Related CA2003617C (fr) 1988-11-28 1989-11-22 Systeme de controle de lignes de transmission

Country Status (5)

Country Link
US (1) US5038364A (fr)
EP (1) EP0371445B1 (fr)
JP (1) JPH0622353B2 (fr)
CA (1) CA2003617C (fr)
DE (1) DE68920970T2 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5511065A (en) * 1990-01-15 1996-04-23 Nec Corporation Multiplexing device capable of quickly transmitting a monitoring information
JP3149976B2 (ja) * 1991-10-23 2001-03-26 日本電気株式会社 ディジタル通信装置の監視システム
US5353147A (en) * 1991-11-27 1994-10-04 At&T Bell Laboratories Identification of transmission characteristic
US5555274A (en) * 1992-03-02 1996-09-10 Teltrend Inc. Phantom data link for digital transmission lines
US5296956A (en) * 1992-07-17 1994-03-22 At&T Bell Laboratories Performance monitoring and fault location for optical equipment, systems and networks
DE4319734C2 (de) * 1993-06-15 1996-04-11 Siemens Ag Anordnung zur In-Betrieb-Überwachung von Übertragungsstrecken der elektrischen Nachrichten-Übertragungstechnik
AU3296797A (en) * 1996-06-03 1998-01-05 Scientific-Atlanta, Inc. Apparatus for automatic sensing of line amplifier configuration for status monitoring
US6097755A (en) * 1997-10-20 2000-08-01 Tektronix, Inc. Time domain reflectometer having optimal interrogating pulses
US8184677B1 (en) * 1998-02-27 2012-05-22 Globalfoundries Inc. Arrangement in a network repeater for monitoring link integrity and automatically down shifting link speed
US7049939B2 (en) * 2002-07-31 2006-05-23 Matsushita Electric Industrial Co., Ltd Power line carrier system
US7834801B2 (en) * 2003-11-25 2010-11-16 Metrotech Corporation, Inc. Sensor fusion for model-based detection in pipe and cable locator systems
CN101443668A (zh) * 2006-03-10 2009-05-27 麦特罗特克公司 长线路监控与定位系统
CN107204792B (zh) * 2017-05-19 2020-10-16 华为技术有限公司 一种检测方法、装置及计算机可读存储介质
RU2746261C1 (ru) * 2020-10-30 2021-04-12 Владимир Анатольевич Цимбал Способ и устройство для диагностирования передающего тракта канала связи

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3649777A (en) * 1968-04-26 1972-03-14 Nippon Electric Co Supervisory apparatus for pcm regenerative repeaters
GB1364264A (en) * 1970-11-16 1974-08-21 Sits Soc It Telecom Siemens Transmission system including a monitoring system
BE792883A (fr) * 1971-12-15 1973-03-30 Post Office Dispositif d'alimentation de courant pour systemes de communication
IT1040148B (it) * 1975-07-28 1979-12-20 Sits Soc It Telecom Siemens Sistema di telesorveglianza per sistemi di trasmissione pcm
FR2395650A1 (fr) * 1977-06-20 1979-01-19 France Etat Systeme de telelocalisation sur une liaison de transmission analogique ou numerique comprenant notamment des repeteurs-regenerateurs
JPS6028418B2 (ja) * 1977-09-22 1985-07-04 富士通株式会社 伝送路監視方式
FR2454728A1 (fr) * 1979-04-19 1980-11-14 Telecommunications Sa Procede et dispositif de telesurveillance de liaisons numeriques ou analogique de telecommunications
US4742518A (en) * 1986-05-27 1988-05-03 American Telephone And Telegraph Company, At&T Bell Laboratories Fault location system for a digital transmission line
JPS6453657A (en) * 1987-02-20 1989-03-01 Fujitsu Ltd Supervising system for low order group digital transmission line
US4896317A (en) * 1987-02-20 1990-01-23 Fujitsu Limited Supervisory system for a primary group digital transmission line

Also Published As

Publication number Publication date
JPH0622353B2 (ja) 1994-03-23
CA2003617C (fr) 1993-07-20
EP0371445A2 (fr) 1990-06-06
JPH02145036A (ja) 1990-06-04
DE68920970D1 (de) 1995-03-16
EP0371445B1 (fr) 1995-02-01
DE68920970T2 (de) 1995-07-06
EP0371445A3 (fr) 1992-01-02
US5038364A (en) 1991-08-06

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 19971124