JPS5721893B2 - - Google Patents

Info

Publication number
JPS5721893B2
JPS5721893B2 JP14396278A JP14396278A JPS5721893B2 JP S5721893 B2 JPS5721893 B2 JP S5721893B2 JP 14396278 A JP14396278 A JP 14396278A JP 14396278 A JP14396278 A JP 14396278A JP S5721893 B2 JPS5721893 B2 JP S5721893B2
Authority
JP
Japan
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
JP14396278A
Other languages
Japanese (ja)
Other versions
JPS5570153A (en
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 filed Critical
Priority to JP14396278A priority Critical patent/JPS5570153A/ja
Publication of JPS5570153A publication Critical patent/JPS5570153A/ja
Publication of JPS5721893B2 publication Critical patent/JPS5721893B2/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)
  • Dc Digital Transmission (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
JP14396278A 1978-11-21 1978-11-21 Communication control unit Granted JPS5570153A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14396278A JPS5570153A (en) 1978-11-21 1978-11-21 Communication control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14396278A JPS5570153A (en) 1978-11-21 1978-11-21 Communication control unit

Publications (2)

Publication Number Publication Date
JPS5570153A JPS5570153A (en) 1980-05-27
JPS5721893B2 true JPS5721893B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1982-05-10

Family

ID=15351093

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14396278A Granted JPS5570153A (en) 1978-11-21 1978-11-21 Communication control unit

Country Status (1)

Country Link
JP (1) JPS5570153A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0386293U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1989-12-21 1991-08-30

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6145655A (ja) * 1984-08-10 1986-03-05 Nec Corp 通信制御装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0386293U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1989-12-21 1991-08-30

Also Published As

Publication number Publication date
JPS5570153A (en) 1980-05-27

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