JPS53123163A - Local testing system - Google Patents

Local testing system

Info

Publication number
JPS53123163A
JPS53123163A JP3762477A JP3762477A JPS53123163A JP S53123163 A JPS53123163 A JP S53123163A JP 3762477 A JP3762477 A JP 3762477A JP 3762477 A JP3762477 A JP 3762477A JP S53123163 A JPS53123163 A JP S53123163A
Authority
JP
Japan
Prior art keywords
testing system
local testing
terminal device
center device
local
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
JP3762477A
Other languages
Japanese (ja)
Inventor
Takashi Nagaoka
Tomoharu Maehara
Shigeo Kikuta
Akio Otani
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 JP3762477A priority Critical patent/JPS53123163A/en
Publication of JPS53123163A publication Critical patent/JPS53123163A/en
Pending legal-status Critical Current

Links

Landscapes

  • Arrangements For Transmission Of Measured Signals (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

PURPOSE: To make it possible for a terminal device itself to accomplish the operation test by forming the transmitting and receiving lines for a center device into a loop when transmission control device receives the information, to which such a code as is not transmitted to the center device is added, from the terminal device.
COPYRIGHT: (C)1978,JPO&Japio
JP3762477A 1977-04-04 1977-04-04 Local testing system Pending JPS53123163A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3762477A JPS53123163A (en) 1977-04-04 1977-04-04 Local testing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3762477A JPS53123163A (en) 1977-04-04 1977-04-04 Local testing system

Publications (1)

Publication Number Publication Date
JPS53123163A true JPS53123163A (en) 1978-10-27

Family

ID=12502779

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3762477A Pending JPS53123163A (en) 1977-04-04 1977-04-04 Local testing system

Country Status (1)

Country Link
JP (1) JPS53123163A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5975748A (en) * 1982-10-25 1984-04-28 Nippon Telegr & Teleph Corp <Ntt> Modem test connecting device for public data indoor device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5975748A (en) * 1982-10-25 1984-04-28 Nippon Telegr & Teleph Corp <Ntt> Modem test connecting device for public data indoor device
JPS6321383B2 (en) * 1982-10-25 1988-05-06 Nippon Telegraph & Telephone

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