JPS639706B2 - - Google Patents

Info

Publication number
JPS639706B2
JPS639706B2 JP55052672A JP5267280A JPS639706B2 JP S639706 B2 JPS639706 B2 JP S639706B2 JP 55052672 A JP55052672 A JP 55052672A JP 5267280 A JP5267280 A JP 5267280A JP S639706 B2 JPS639706 B2 JP S639706B2
Authority
JP
Japan
Prior art keywords
signal
circuit
terminal device
communication
communication state
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
JP55052672A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56149145A (en
Inventor
Takashi Akao
Tadashi Yatani
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
Nippon Telegraph and Telephone Corp
Original Assignee
Fujitsu Ltd
Nippon Telegraph and Telephone Corp
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, Nippon Telegraph and Telephone Corp filed Critical Fujitsu Ltd
Priority to JP5267280A priority Critical patent/JPS56149145A/ja
Publication of JPS56149145A publication Critical patent/JPS56149145A/ja
Publication of JPS639706B2 publication Critical patent/JPS639706B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/50—Testing arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
JP5267280A 1980-04-21 1980-04-21 Automatic forming circuit for return loop Granted JPS56149145A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5267280A JPS56149145A (en) 1980-04-21 1980-04-21 Automatic forming circuit for return loop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5267280A JPS56149145A (en) 1980-04-21 1980-04-21 Automatic forming circuit for return loop

Publications (2)

Publication Number Publication Date
JPS56149145A JPS56149145A (en) 1981-11-18
JPS639706B2 true JPS639706B2 (en, 2012) 1988-03-01

Family

ID=12921355

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5267280A Granted JPS56149145A (en) 1980-04-21 1980-04-21 Automatic forming circuit for return loop

Country Status (1)

Country Link
JP (1) JPS56149145A (en, 2012)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01139306U (en, 2012) * 1988-03-16 1989-09-22
JPH01139305U (en, 2012) * 1988-03-16 1989-09-22

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5516570A (en) * 1978-07-21 1980-02-05 Nec Corp Subscribersigma return circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01139306U (en, 2012) * 1988-03-16 1989-09-22
JPH01139305U (en, 2012) * 1988-03-16 1989-09-22

Also Published As

Publication number Publication date
JPS56149145A (en) 1981-11-18

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