JPS57744A - Terminal controlling method - Google Patents

Terminal controlling method

Info

Publication number
JPS57744A
JPS57744A JP7429580A JP7429580A JPS57744A JP S57744 A JPS57744 A JP S57744A JP 7429580 A JP7429580 A JP 7429580A JP 7429580 A JP7429580 A JP 7429580A JP S57744 A JPS57744 A JP S57744A
Authority
JP
Japan
Prior art keywords
circuit
computers
discontinuity
selectors
processing
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.)
Pending
Application number
JP7429580A
Other languages
Japanese (ja)
Inventor
Manabu Sasamoto
Kunio Yamanaka
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 JP7429580A priority Critical patent/JPS57744A/en
Publication of JPS57744A publication Critical patent/JPS57744A/en
Pending legal-status Critical Current

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  • Maintenance And Management Of Digital Transmission (AREA)

Abstract

PURPOSE: To prevent the discontinuity of the processing of the whole system due to the fault of some equipment by enabling both computers to attain access all the time and to back up each other by shifting load distribution.
CONSTITUTION: Information from a communication terminal 4 enters multiplex circuit switching selectors 32A1W32N1, and 32A2W32N2 via a branching device 33. According to the branching of the device 33, the devices 32 pair up like 32A1 and 32A1W32N1 and 32N1, and when one selector selects some circuit, the other selector searches for the other first-coming circuit to select and connect a circuit with the oldest request. Communication controllers 31A1W31N1, and 31A2W32N2 control transmission to and reception from terminals on the circuits selected by the selectors and are connected to intermediate computers 21A and 21B. The intermediate computers operate in load-division mode according to a time series to be connected to host computers 11A and 11B via the communication controllers 23AW23D and 13AW13D. Both the host computers process the same information in parallel, causing no discontinuity of processing because no switching operation is done.
COPYRIGHT: (C)1982,JPO&Japio
JP7429580A 1980-06-04 1980-06-04 Terminal controlling method Pending JPS57744A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7429580A JPS57744A (en) 1980-06-04 1980-06-04 Terminal controlling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7429580A JPS57744A (en) 1980-06-04 1980-06-04 Terminal controlling method

Publications (1)

Publication Number Publication Date
JPS57744A true JPS57744A (en) 1982-01-05

Family

ID=13542999

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7429580A Pending JPS57744A (en) 1980-06-04 1980-06-04 Terminal controlling method

Country Status (1)

Country Link
JP (1) JPS57744A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6354846A (en) * 1986-08-25 1988-03-09 Nec Software Ltd Controlling equipment for decentralized load communication
US5026767A (en) * 1987-06-03 1991-06-25 Ube Industries, Ltd. Antistatic aromatic polyimide article
JPH04192844A (en) * 1990-11-27 1992-07-13 Fuji Electric Co Ltd Dual switching unit of 1-to-n communication system
US6255594B1 (en) 1997-04-10 2001-07-03 Plastic Insulated Cables Limited Communications cable

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6354846A (en) * 1986-08-25 1988-03-09 Nec Software Ltd Controlling equipment for decentralized load communication
US5026767A (en) * 1987-06-03 1991-06-25 Ube Industries, Ltd. Antistatic aromatic polyimide article
JPH04192844A (en) * 1990-11-27 1992-07-13 Fuji Electric Co Ltd Dual switching unit of 1-to-n communication system
US6255594B1 (en) 1997-04-10 2001-07-03 Plastic Insulated Cables Limited Communications cable

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