JPS5698056A - Loop forming system of data transmission system - Google Patents

Loop forming system of data transmission system

Info

Publication number
JPS5698056A
JPS5698056A JP17349579A JP17349579A JPS5698056A JP S5698056 A JPS5698056 A JP S5698056A JP 17349579 A JP17349579 A JP 17349579A JP 17349579 A JP17349579 A JP 17349579A JP S5698056 A JPS5698056 A JP S5698056A
Authority
JP
Japan
Prior art keywords
terminal
code
tested
test
loop
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
JP17349579A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6239582B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Yoshimitsu Okano
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 JP17349579A priority Critical patent/JPS5698056A/ja
Publication of JPS5698056A publication Critical patent/JPS5698056A/ja
Publication of JPS6239582B2 publication Critical patent/JPS6239582B2/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
    • H04L1/24—Testing correct operation
    • H04L1/242—Testing correct operation by comparing a transmitted test signal with a locally generated replica
    • H04L1/243—Testing correct operation by comparing a transmitted test signal with a locally generated replica at the transmitter, using a loop-back

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Small-Scale Networks (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
JP17349579A 1979-12-29 1979-12-29 Loop forming system of data transmission system Granted JPS5698056A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17349579A JPS5698056A (en) 1979-12-29 1979-12-29 Loop forming system of data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17349579A JPS5698056A (en) 1979-12-29 1979-12-29 Loop forming system of data transmission system

Publications (2)

Publication Number Publication Date
JPS5698056A true JPS5698056A (en) 1981-08-07
JPS6239582B2 JPS6239582B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-08-24

Family

ID=15961562

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17349579A Granted JPS5698056A (en) 1979-12-29 1979-12-29 Loop forming system of data transmission system

Country Status (1)

Country Link
JP (1) JPS5698056A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
JPS6239582B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-08-24

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