JPS6253975B2 - - Google Patents

Info

Publication number
JPS6253975B2
JPS6253975B2 JP54154837A JP15483779A JPS6253975B2 JP S6253975 B2 JPS6253975 B2 JP S6253975B2 JP 54154837 A JP54154837 A JP 54154837A JP 15483779 A JP15483779 A JP 15483779A JP S6253975 B2 JPS6253975 B2 JP S6253975B2
Authority
JP
Japan
Prior art keywords
optical
repeater
signal
transmission line
circuit
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.)
Expired
Application number
JP54154837A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5678247A (en
Inventor
Kaoru Fukushima
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
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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP15483779A priority Critical patent/JPS5678247A/ja
Publication of JPS5678247A publication Critical patent/JPS5678247A/ja
Publication of JPS6253975B2 publication Critical patent/JPS6253975B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
JP15483779A 1979-11-29 1979-11-29 Monitoring circuit for light repeating transmission line Granted JPS5678247A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15483779A JPS5678247A (en) 1979-11-29 1979-11-29 Monitoring circuit for light repeating transmission line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15483779A JPS5678247A (en) 1979-11-29 1979-11-29 Monitoring circuit for light repeating transmission line

Publications (2)

Publication Number Publication Date
JPS5678247A JPS5678247A (en) 1981-06-27
JPS6253975B2 true JPS6253975B2 (enExample) 1987-11-12

Family

ID=15592956

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15483779A Granted JPS5678247A (en) 1979-11-29 1979-11-29 Monitoring circuit for light repeating transmission line

Country Status (1)

Country Link
JP (1) JPS5678247A (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3224998A1 (de) * 1982-07-03 1984-01-05 Philips Kommunikations Industrie AG, 8500 Nürnberg Einrichtung fuer die fehlerortung in einem optischen nachrichtenuebertragungssystem
JPS61169047A (ja) * 1985-01-22 1986-07-30 Kokusai Denshin Denwa Co Ltd <Kdd> 光フアイバ伝送路の伝搬遅延時間変動量検出方式
US4685852A (en) * 1985-05-20 1987-08-11 Machine Technology, Inc. Process apparatus and method and elevator mechanism for use in connection therewith

Also Published As

Publication number Publication date
JPS5678247A (en) 1981-06-27

Similar Documents

Publication Publication Date Title
US5491572A (en) Method and system for detecting trouble in two-way single-fiber optical transmission
KR0123893B1 (ko) 광전송로의 고장위치를 판별하는 방법 및 이 방법에 사용하는 광필터형 판별기
EP0850514B1 (en) System, method and device for monitoring a fiber optic cable
JPH11205243A (ja) 光伝送回線自動電力停止システム
JPH0918411A (ja) 光中継器
CN101995320A (zh) 检测水下设备故障的方法、装置及设备
US6101025A (en) Optical repeater having redundancy
US4270029A (en) Selection system for digital signal repeaters
JPS5811563B2 (ja) ヒカリフアイバ−ツウシンホウシキ
JPS6253975B2 (enExample)
US4866265A (en) Optical moisture sensor using an expanded optical beam
JPS593902B2 (ja) 光中継器監視方式
WO1983004150A1 (fr) Procede et dispositif de detection de points defaillants dans une ligne de transmission de lumiere
JP2712103B2 (ja) 長距離光通信システムの監視方法及び装置
CN113285750A (zh) 光纤通信设备及电力通信网故障诊断方法
JPH04351935A (ja) 光線路試験監視システム
CN101208885B (zh) 无源光学测试终端装置及其网络与方法
JPS59196438A (ja) 光伝送路の障害探索方法
JP2508986B2 (ja) 光増幅中継システム
CN117375724B (zh) 一种水下设备以及通信系统
JP2781720B2 (ja) 光加入者システム監視方式
AU651677B2 (en) Remote monitoring of optical transmission line
JPS6033764A (ja) 中継器監視方式
JPS5844832A (ja) 光フアイバ多元接続通信装置
JP2845440B2 (ja) 光中継器