JPS5227327A - Loop test system - Google Patents

Loop test system

Info

Publication number
JPS5227327A
JPS5227327A JP50102987A JP10298775A JPS5227327A JP S5227327 A JPS5227327 A JP S5227327A JP 50102987 A JP50102987 A JP 50102987A JP 10298775 A JP10298775 A JP 10298775A JP S5227327 A JPS5227327 A JP S5227327A
Authority
JP
Japan
Prior art keywords
test system
loop test
looped
enabling
help
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
JP50102987A
Other languages
Japanese (ja)
Inventor
Toshiharu Naito
Hisashi Kiyonaga
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 JP50102987A priority Critical patent/JPS5227327A/en
Publication of JPS5227327A publication Critical patent/JPS5227327A/en
Pending legal-status Critical Current

Links

Landscapes

  • Dc Digital Transmission (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)

Abstract

PURPOSE: The circuit of an equipment in the distance can be looped or released without the help of another person, thus enabling an effective check for transmitting/receiving functions.
COPYRIGHT: (C)1977,JPO&Japio
JP50102987A 1975-08-27 1975-08-27 Loop test system Pending JPS5227327A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50102987A JPS5227327A (en) 1975-08-27 1975-08-27 Loop test system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50102987A JPS5227327A (en) 1975-08-27 1975-08-27 Loop test system

Publications (1)

Publication Number Publication Date
JPS5227327A true JPS5227327A (en) 1977-03-01

Family

ID=14342050

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50102987A Pending JPS5227327A (en) 1975-08-27 1975-08-27 Loop test system

Country Status (1)

Country Link
JP (1) JPS5227327A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54159105A (en) * 1978-06-07 1979-12-15 Hitachi Ltd Multiple signal-distribution unit
JPS5643865A (en) * 1979-09-18 1981-04-22 Ricoh Co Ltd Integrated control system of facsimile equipment
JPS5820049A (en) * 1981-07-29 1983-02-05 Hitachi Cable Ltd Data transmission method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54159105A (en) * 1978-06-07 1979-12-15 Hitachi Ltd Multiple signal-distribution unit
JPS5643865A (en) * 1979-09-18 1981-04-22 Ricoh Co Ltd Integrated control system of facsimile equipment
JPS5820049A (en) * 1981-07-29 1983-02-05 Hitachi Cable Ltd Data transmission method

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