JPS5977739A - 二重系環状網システム - Google Patents

二重系環状網システム

Info

Publication number
JPS5977739A
JPS5977739A JP57187552A JP18755282A JPS5977739A JP S5977739 A JPS5977739 A JP S5977739A JP 57187552 A JP57187552 A JP 57187552A JP 18755282 A JP18755282 A JP 18755282A JP S5977739 A JPS5977739 A JP S5977739A
Authority
JP
Japan
Prior art keywords
signal
transmission
command
network system
detection 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.)
Granted
Application number
JP57187552A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0149066B2 (enExample
Inventor
Sadao Mizokawa
貞生 溝河
Takushi Hamada
浜田　卓志
Masahiro Takahashi
正弘 高橋
Hitoshi Fushimi
伏見　仁志
Seiichi Yasumoto
精一 安元
Masakazu Okada
政和 岡田
Hiroshi Tomizawa
冨沢　宏
Takeshi Onuki
大貫　健
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 JP57187552A priority Critical patent/JPS5977739A/ja
Publication of JPS5977739A publication Critical patent/JPS5977739A/ja
Publication of JPH0149066B2 publication Critical patent/JPH0149066B2/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)
JP57187552A 1982-10-27 1982-10-27 二重系環状網システム Granted JPS5977739A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57187552A JPS5977739A (ja) 1982-10-27 1982-10-27 二重系環状網システム

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57187552A JPS5977739A (ja) 1982-10-27 1982-10-27 二重系環状網システム

Publications (2)

Publication Number Publication Date
JPS5977739A true JPS5977739A (ja) 1984-05-04
JPH0149066B2 JPH0149066B2 (enExample) 1989-10-23

Family

ID=16208072

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57187552A Granted JPS5977739A (ja) 1982-10-27 1982-10-27 二重系環状網システム

Country Status (1)

Country Link
JP (1) JPS5977739A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62176345A (ja) * 1986-01-30 1987-08-03 Mitsubishi Electric Corp ２重系ル−プ形伝送制御装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5679552A (en) * 1979-12-03 1981-06-30 Mitsubishi Electric Corp Loop back system for duplex loop transmission system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5679552A (en) * 1979-12-03 1981-06-30 Mitsubishi Electric Corp Loop back system for duplex loop transmission system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62176345A (ja) * 1986-01-30 1987-08-03 Mitsubishi Electric Corp ２重系ル−プ形伝送制御装置

Also Published As

Publication number Publication date
JPH0149066B2 (enExample) 1989-10-23

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