JPS6336703B2 - - Google Patents

Info

Publication number
JPS6336703B2
JPS6336703B2 JP56155272A JP15527281A JPS6336703B2 JP S6336703 B2 JPS6336703 B2 JP S6336703B2 JP 56155272 A JP56155272 A JP 56155272A JP 15527281 A JP15527281 A JP 15527281A JP S6336703 B2 JPS6336703 B2 JP S6336703B2
Authority
JP
Japan
Prior art keywords
modem
test
line
loop
transmitting
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.)
Expired
Application number
JP56155272A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5857844A (ja
Inventor
Tetsuo Nojima
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP56155272A priority Critical patent/JPS5857844A/ja
Publication of JPS5857844A publication Critical patent/JPS5857844A/ja
Publication of JPS6336703B2 publication Critical patent/JPS6336703B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/24Testing correct operation
    • H04L1/242Testing correct operation by comparing a transmitted test signal with a locally generated replica
    • H04L1/243Testing 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)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
JP56155272A 1981-09-30 1981-09-30 試験制御方式 Granted JPS5857844A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56155272A JPS5857844A (ja) 1981-09-30 1981-09-30 試験制御方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56155272A JPS5857844A (ja) 1981-09-30 1981-09-30 試験制御方式

Publications (2)

Publication Number Publication Date
JPS5857844A JPS5857844A (ja) 1983-04-06
JPS6336703B2 true JPS6336703B2 (cs) 1988-07-21

Family

ID=15602270

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56155272A Granted JPS5857844A (ja) 1981-09-30 1981-09-30 試験制御方式

Country Status (1)

Country Link
JP (1) JPS5857844A (cs)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63296539A (ja) * 1987-05-28 1988-12-02 Matsushita Electric Ind Co Ltd ホ−ムバスシステム用通信制御装置
JPH06105924B2 (ja) * 1987-07-29 1994-12-21 日本電気株式会社 集合モデム集中制御方式
JPH0237867A (ja) * 1988-07-28 1990-02-07 Fujitsu Denso Ltd 折返試験制御方式
JPH04264863A (ja) * 1991-02-19 1992-09-21 Fujitsu Ltd 障害特定方式

Also Published As

Publication number Publication date
JPS5857844A (ja) 1983-04-06

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