JPS6249775B2 - - Google Patents

Info

Publication number
JPS6249775B2
JPS6249775B2 JP54055730A JP5573079A JPS6249775B2 JP S6249775 B2 JPS6249775 B2 JP S6249775B2 JP 54055730 A JP54055730 A JP 54055730A JP 5573079 A JP5573079 A JP 5573079A JP S6249775 B2 JPS6249775 B2 JP S6249775B2
Authority
JP
Japan
Prior art keywords
node
signal
loop
fault
failure
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
JP54055730A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55147850A (en
Inventor
Minoru Hatada
Kunio Hyama
Koichi Ihara
Tokuyuki Iwai
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5573079A priority Critical patent/JPS55147850A/ja
Publication of JPS55147850A publication Critical patent/JPS55147850A/ja
Publication of JPS6249775B2 publication Critical patent/JPS6249775B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/437—Ring fault isolation or reconfiguration

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
JP5573079A 1979-05-09 1979-05-09 Loop system controlling system Granted JPS55147850A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5573079A JPS55147850A (en) 1979-05-09 1979-05-09 Loop system controlling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5573079A JPS55147850A (en) 1979-05-09 1979-05-09 Loop system controlling system

Publications (2)

Publication Number Publication Date
JPS55147850A JPS55147850A (en) 1980-11-18
JPS6249775B2 true JPS6249775B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-10-21

Family

ID=13006964

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5573079A Granted JPS55147850A (en) 1979-05-09 1979-05-09 Loop system controlling system

Country Status (1)

Country Link
JP (1) JPS55147850A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
JPS55147850A (en) 1980-11-18

Similar Documents

Publication Publication Date Title
KR840006114A (ko) 루우프전송 시스템의 루우프-백 상태를 제어하는 루우프 전송시스템 및 방법
US4956836A (en) Automatic bypass system for ring type local area network
JP3123417B2 (ja) 小規模ネットワークにおける通信方法及び同通信方法に適用される制御装置と従属装置
JPH0366863B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JPS62226271A (ja) Ｐｏｓル−プ自動切換装置
JPS6249775B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JPS6347019B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JPS6135739B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP2944837B2 (ja) 伝送方式
JP3218740B2 (ja) 二重ループ式データ通信システムにおけるループ断線検出回路
JPH0740702B2 (ja) リモ−トテスト回路
JP2590775B2 (ja) 二重ループ型伝送システム
JPS59168737A (ja) マルチ・ドロツプ伝送方式
JP2618890B2 (ja) 異常送信検出方式
JP2949945B2 (ja) 伝送路切替回路
JPS59122149A (ja) 障害監視方式
JPS6367380B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JPH0817399B2 (ja) 直列制御装置
JPS58225738A (ja) 分散形伝送システム
JPH04364626A (ja) 構内通信機
JPH04311125A (ja) 伝送路故障検出回路
JPS6329865B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JPH0830970B2 (ja) 直列制御装置
JPH04207242A (ja) データ伝送装置
JPS5875347A (ja) 競合方式デ−タ回線の端局送信制御方法