JPS5590157A - Data link switching system - Google Patents

Data link switching system

Info

Publication number
JPS5590157A
JPS5590157A JP16489178A JP16489178A JPS5590157A JP S5590157 A JPS5590157 A JP S5590157A JP 16489178 A JP16489178 A JP 16489178A JP 16489178 A JP16489178 A JP 16489178A JP S5590157 A JPS5590157 A JP S5590157A
Authority
JP
Japan
Prior art keywords
link
data
offices
data link
fault
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
JP16489178A
Other languages
Japanese (ja)
Other versions
JPS6113661B2 (en
Inventor
Kouichi Banmoto
Hideki Nakane
Takehiko Yamaguchi
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
NEC Corp
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP16489178A priority Critical patent/JPS5590157A/en
Publication of JPS5590157A publication Critical patent/JPS5590157A/en
Publication of JPS6113661B2 publication Critical patent/JPS6113661B2/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
    • H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Hardware Redundancy (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

PURPOSE:To make it possible to select a definite and high-speed stand-by system data link by giving a difference in fault recognition time between controllers of two offices when a fault occurs in a stand-by data link. CONSTITUTION:For example, when a link control system in data-link-''0'' synchronous mode and control information is transferred between both offices, the occurrence of a fault in the link results in that data link supervisory unit SUP detects CRC check errors respectively to set the data-link-''0'' synchronous mode. During the following independent fault recognition time, both offices detect CRC check errors continuously to set the data-link-''I'' selection mode through data link switching circuit LCT. Here, providing a difference in time much greater than the fault recognition time between opposing offices A and B prevents what is called a race of link switching, so that a stand-by data link can be selected rapidly.
JP16489178A 1978-12-27 1978-12-27 Data link switching system Granted JPS5590157A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16489178A JPS5590157A (en) 1978-12-27 1978-12-27 Data link switching system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16489178A JPS5590157A (en) 1978-12-27 1978-12-27 Data link switching system

Publications (2)

Publication Number Publication Date
JPS5590157A true JPS5590157A (en) 1980-07-08
JPS6113661B2 JPS6113661B2 (en) 1986-04-15

Family

ID=15801834

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16489178A Granted JPS5590157A (en) 1978-12-27 1978-12-27 Data link switching system

Country Status (1)

Country Link
JP (1) JPS5590157A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06338922A (en) * 1993-05-28 1994-12-06 Oki Electric Ind Co Ltd System switching system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02216787A (en) * 1989-02-17 1990-08-29 Hitachi Ltd Disk heater
US8916478B2 (en) 2011-12-19 2014-12-23 Unisantis Electronics Singapore Pte. Ltd. Method for manufacturing semiconductor device and semiconductor device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06338922A (en) * 1993-05-28 1994-12-06 Oki Electric Ind Co Ltd System switching system
JP2531485B2 (en) * 1993-05-28 1996-09-04 沖電気工業株式会社 System switching method

Also Published As

Publication number Publication date
JPS6113661B2 (en) 1986-04-15

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