JPH0378022B2 - - Google Patents

Info

Publication number
JPH0378022B2
JPH0378022B2 JP59096662A JP9666284A JPH0378022B2 JP H0378022 B2 JPH0378022 B2 JP H0378022B2 JP 59096662 A JP59096662 A JP 59096662A JP 9666284 A JP9666284 A JP 9666284A JP H0378022 B2 JPH0378022 B2 JP H0378022B2
Authority
JP
Japan
Prior art keywords
control command
repeater
signal
circuit
counting
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 - Lifetime
Application number
JP59096662A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60241351A (ja
Inventor
Hiroharu Wakabayashi
Yasuhiko Niino
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.)
KDDI Corp
Original Assignee
Kokusai Denshin Denwa KK
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 Kokusai Denshin Denwa KK filed Critical Kokusai Denshin Denwa KK
Priority to JP59096662A priority Critical patent/JPS60241351A/ja
Priority to US06/731,642 priority patent/US4710976A/en
Publication of JPS60241351A publication Critical patent/JPS60241351A/ja
Publication of JPH0378022B2 publication Critical patent/JPH0378022B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0061—Error detection codes
    • H04L1/0063—Single parity check
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/40—Monitoring; Testing of relay systems
    • H04B17/401—Monitoring; Testing of relay systems with selective localization
    • H04B17/402—Monitoring; Testing of relay systems with selective localization using different frequencies
    • H04B17/405—Monitoring; Testing of relay systems with selective localization using different frequencies generated by local multipliers, dividers, modulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Dc Digital Transmission (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
JP59096662A 1984-05-16 1984-05-16 光中継器監視方式 Granted JPS60241351A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP59096662A JPS60241351A (ja) 1984-05-16 1984-05-16 光中継器監視方式
US06/731,642 US4710976A (en) 1984-05-16 1985-05-07 Optical repeater monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59096662A JPS60241351A (ja) 1984-05-16 1984-05-16 光中継器監視方式

Publications (2)

Publication Number Publication Date
JPS60241351A JPS60241351A (ja) 1985-11-30
JPH0378022B2 true JPH0378022B2 (en, 2012) 1991-12-12

Family

ID=14171028

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59096662A Granted JPS60241351A (ja) 1984-05-16 1984-05-16 光中継器監視方式

Country Status (2)

Country Link
US (1) US4710976A (en, 2012)
JP (1) JPS60241351A (en, 2012)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2191663B (en) * 1986-06-13 1991-02-06 Victor Company Of Japan Interface circuit
JPS6374234A (ja) * 1986-09-17 1988-04-04 Nec Corp 多方向多重通信システム
GB2212680B (en) * 1987-11-18 1992-05-20 Stc Plc Telecommunications repeater incorporating a phase modulator circuit
JPH088530B2 (ja) * 1989-07-27 1996-01-29 富士通株式会社 光中継器
US5212713A (en) * 1989-08-09 1993-05-18 Tasman Cable Company Fault location arrangement for digital transmission systems
JPH0738648B2 (ja) * 1989-10-06 1995-04-26 富士通株式会社 光信号中継伝送制御方式
GB8923933D0 (en) * 1989-10-24 1989-12-13 British Aerospace Apparatus and methods for testing optical communications networks
US5220581A (en) * 1991-03-28 1993-06-15 International Business Machines Corporation Digital data link performance monitor
EP1156605A3 (en) * 1991-10-21 2004-02-04 Nec Corporation An optical transmission system
GB2263849B (en) * 1992-01-31 1995-02-15 Northern Telecom Ltd Error detection
JPH05211482A (ja) * 1992-01-31 1993-08-20 Fujitsu Ltd 光増幅中継器
US5555477A (en) * 1992-04-08 1996-09-10 Hitachi, Ltd. Optical transmission system constructing method and system
US5517519A (en) * 1993-06-14 1996-05-14 International Business Machines Corporation Apparatus for repowering and monitoring serial links
US5659575A (en) * 1995-04-28 1997-08-19 Grinnell Corporation Method and apparatus for improving data regeneration in asynchronous network communication
US5764633A (en) * 1995-07-31 1998-06-09 Bell; David T. Method and system for transferring digital telephone circuits
US5887050A (en) * 1997-05-09 1999-03-23 Siemens Building Technologies, Inc. Repeater apparatus having isolation circuit
JP3388464B2 (ja) 1999-11-04 2003-03-24 日本電気株式会社 誤り訂正を用いた光伝送システム及びそれに用いるパフォーマンスモニタ方式
DE102006055928A1 (de) * 2006-11-27 2008-06-12 Siemens Ag Verfahren und Anordnung zur Steuerung eines Regenerators für Datenburst-Signale eines Systems mit Punkt-zu-Multipunkt-Verbindungen, Übertagungssystem mit Punkt-zu-Multipunkt-Verbindungen und Regenerator
CN114185597B (zh) * 2021-10-28 2024-06-21 河北汉光重工有限责任公司 一种用于地面发控的测发控装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS593051B2 (ja) * 1978-01-09 1984-01-21 ケイディディ株式会社 光中継伝送路の障害監視方式
JPS596538B2 (ja) * 1979-02-08 1984-02-13 ケイディディ株式会社 光中継器監視方式
FR2454728A1 (fr) * 1979-04-19 1980-11-14 Telecommunications Sa Procede et dispositif de telesurveillance de liaisons numeriques ou analogique de telecommunications
US4586186A (en) * 1983-08-08 1986-04-29 At&T Bell Laboratories Maintenance response signalling arrangement for a digital transmission system

Also Published As

Publication number Publication date
US4710976A (en) 1987-12-01
JPS60241351A (ja) 1985-11-30

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