JPS54139404A - Circuit fault process system of on-line data transmission system - Google Patents

Circuit fault process system of on-line data transmission system

Info

Publication number
JPS54139404A
JPS54139404A JP4750778A JP4750778A JPS54139404A JP S54139404 A JPS54139404 A JP S54139404A JP 4750778 A JP4750778 A JP 4750778A JP 4750778 A JP4750778 A JP 4750778A JP S54139404 A JPS54139404 A JP S54139404A
Authority
JP
Japan
Prior art keywords
circuit
center
data transmission
fault process
line data
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
JP4750778A
Other languages
Japanese (ja)
Other versions
JPS6129B2 (en
Inventor
Tadamichi Sakai
Masayuki Urano
Mikio Furuyama
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
Priority to JP4750778A priority Critical patent/JPS54139404A/en
Publication of JPS54139404A publication Critical patent/JPS54139404A/en
Publication of JPS6129B2 publication Critical patent/JPS6129B2/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

Landscapes

  • Small-Scale Networks (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)

Abstract

PURPOSE:To secure an effective fault process through a simple constitution by giving the multiple drop to plural units of end offices indluding the end office corresponding to the faulty center circuit via the other center circuit and the backup circuit when some fault occurs at the center circuit. CONSTITUTION:Center circuit #1 and #2 are provided between center 5 and end office 6 and between center 5 and the other end office 7 respectively. At the same time, the backup circuit is installed between end offices 6 and 7. Here, in case some fault occurs at circuit #1 or #2, the multiple drop is given to plural units of end offices including the end office corresponding to the faulty center circuit via the other center circuit and the backup circuit. Thus, an effective fault process is ensured through a simple system constitution.
JP4750778A 1978-04-21 1978-04-21 Circuit fault process system of on-line data transmission system Granted JPS54139404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4750778A JPS54139404A (en) 1978-04-21 1978-04-21 Circuit fault process system of on-line data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4750778A JPS54139404A (en) 1978-04-21 1978-04-21 Circuit fault process system of on-line data transmission system

Publications (2)

Publication Number Publication Date
JPS54139404A true JPS54139404A (en) 1979-10-29
JPS6129B2 JPS6129B2 (en) 1986-01-06

Family

ID=12777016

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4750778A Granted JPS54139404A (en) 1978-04-21 1978-04-21 Circuit fault process system of on-line data transmission system

Country Status (1)

Country Link
JP (1) JPS54139404A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS585642U (en) * 1981-07-01 1983-01-14 タイガー魔法瓶株式会社 liquid warmer

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01117708U (en) * 1988-01-28 1989-08-09
JPH01131124U (en) * 1988-03-01 1989-09-06
JPH02110828U (en) * 1989-02-22 1990-09-05

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS585642U (en) * 1981-07-01 1983-01-14 タイガー魔法瓶株式会社 liquid warmer
JPS5941777Y2 (en) * 1981-07-01 1984-12-04 タイガー魔法瓶株式会社 liquid warmer

Also Published As

Publication number Publication date
JPS6129B2 (en) 1986-01-06

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