JPS5432938A - Test monitor system of on-line data communication system - Google Patents

Test monitor system of on-line data communication system

Info

Publication number
JPS5432938A
JPS5432938A JP9928277A JP9928277A JPS5432938A JP S5432938 A JPS5432938 A JP S5432938A JP 9928277 A JP9928277 A JP 9928277A JP 9928277 A JP9928277 A JP 9928277A JP S5432938 A JPS5432938 A JP S5432938A
Authority
JP
Japan
Prior art keywords
data communication
line data
test monitor
communication system
test
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
JP9928277A
Other languages
Japanese (ja)
Inventor
Fumio Shimomura
Shigeru Fukuda
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP9928277A priority Critical patent/JPS5432938A/en
Publication of JPS5432938A publication Critical patent/JPS5432938A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make it possible to separate the fault among line adapters, lines and terminal equipments and test terminal equipments, and further make it possible to test on the switching circuit, and further make it possible to monitor the data communication between CPU and terminal equipments on the switching circuit by providing the switching circuit in the line unit.
COPYRIGHT: (C)1979,JPO&Japio
JP9928277A 1977-08-19 1977-08-19 Test monitor system of on-line data communication system Pending JPS5432938A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9928277A JPS5432938A (en) 1977-08-19 1977-08-19 Test monitor system of on-line data communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9928277A JPS5432938A (en) 1977-08-19 1977-08-19 Test monitor system of on-line data communication system

Publications (1)

Publication Number Publication Date
JPS5432938A true JPS5432938A (en) 1979-03-10

Family

ID=14243293

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9928277A Pending JPS5432938A (en) 1977-08-19 1977-08-19 Test monitor system of on-line data communication system

Country Status (1)

Country Link
JP (1) JPS5432938A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5680735A (en) * 1979-12-06 1981-07-02 Fujitsu Ltd Line monitor control system
JPS5983440A (en) * 1982-11-05 1984-05-14 Hitachi Ltd Communication controller
JP2008022116A (en) * 2006-07-11 2008-01-31 Fujitsu Ltd Transmission apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5169310A (en) * 1974-12-13 1976-06-15 Hitachi Ltd

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5169310A (en) * 1974-12-13 1976-06-15 Hitachi Ltd

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5680735A (en) * 1979-12-06 1981-07-02 Fujitsu Ltd Line monitor control system
JPS5983440A (en) * 1982-11-05 1984-05-14 Hitachi Ltd Communication controller
JPH0134492B2 (en) * 1982-11-05 1989-07-19 Hitachi Seisakusho Kk
JP2008022116A (en) * 2006-07-11 2008-01-31 Fujitsu Ltd Transmission apparatus

Similar Documents

Publication Publication Date Title
JPS5432938A (en) Test monitor system of on-line data communication system
JPS534403A (en) Terminal equipment circuit block for monitor control transmission system
JPS5432939A (en) Line unit
JPS51136254A (en) Fault detection
JPS5375707A (en) Fault detection system
JPS52112248A (en) Data distribution signal processing system
JPS5274241A (en) Peripheral unit maintenance system
JPS536855A (en) Digital protective relay inspection system
JPS535944A (en) Multi-system computer system constituted by simultaneous access prevention system of same data block
DE3886637D1 (en) Tripping device for circuit breakers.
JPS5648559A (en) Orientating method for fault point of cable line
JPS5327308A (en) Test method for subscriber line
JPS526440A (en) Transmission line coupling system
JPS543246A (en) Relay inspection
JPS5441440A (en) Protection system for parallel two-ciruit distribution line
JPS544510A (en) Combined trunk system between two wires and four wires
JPS53117725A (en) Fault point standarizing device
JPS5410641A (en) Time conting system for data communication equipment
JPS53143145A (en) On line data processing system with upper rank system monitoring unit
JPS5374860A (en) Remote maintenance diagnosis system
JPS53109143A (en) Protective relay system
JPS5336681A (en) Experimental device for testing temperature characteristic of communication cable
JPS5478641A (en) Remote processor
JPS52149007A (en) Circuit monitor system
JPS5466731A (en) Test and diagnosis method of information communication processor