JPS537761B1 - - Google Patents

Info

Publication number
JPS537761B1
JPS537761B1 JP195870A JP195870A JPS537761B1 JP S537761 B1 JPS537761 B1 JP S537761B1 JP 195870 A JP195870 A JP 195870A JP 195870 A JP195870 A JP 195870A JP S537761 B1 JPS537761 B1 JP S537761B1
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.)
Pending
Application number
JP195870A
Other languages
Japanese (ja)
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
Publication of JPS537761B1 publication Critical patent/JPS537761B1/ja
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00Arrangements for monitoring or testing data switching networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electronic Switches (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Selective Calling Equipment (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Dc Digital Transmission (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Communication Control (AREA)
JP195870A 1968-12-31 1970-01-05 Pending JPS537761B1 (US20110009641A1-20110113-C00273.png)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR183136 1968-12-31

Publications (1)

Publication Number Publication Date
JPS537761B1 true JPS537761B1 (US20110009641A1-20110113-C00273.png) 1978-03-22

Family

ID=8659954

Family Applications (1)

Application Number Title Priority Date Filing Date
JP195870A Pending JPS537761B1 (US20110009641A1-20110113-C00273.png) 1968-12-31 1970-01-05

Country Status (9)

Country Link
US (1) US3668314A (US20110009641A1-20110113-C00273.png)
JP (1) JPS537761B1 (US20110009641A1-20110113-C00273.png)
BE (1) BE743320A (US20110009641A1-20110113-C00273.png)
CH (1) CH506922A (US20110009641A1-20110113-C00273.png)
DE (1) DE1965656C3 (US20110009641A1-20110113-C00273.png)
FR (1) FR1605049A (US20110009641A1-20110113-C00273.png)
GB (1) GB1279329A (US20110009641A1-20110113-C00273.png)
NL (1) NL160455C (US20110009641A1-20110113-C00273.png)
SE (1) SE363452B (US20110009641A1-20110113-C00273.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0258687U (US20110009641A1-20110113-C00273.png) * 1988-10-20 1990-04-26

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2134747A5 (US20110009641A1-20110113-C00273.png) * 1971-04-19 1972-12-08 Cit Alcatel
BE793396A (fr) * 1972-01-24 1973-06-28 Siemens Ag Montage de surveillance de liaison

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3317668A (en) * 1963-08-15 1967-05-02 Teletype Corp Open line and busy line detection circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0258687U (US20110009641A1-20110113-C00273.png) * 1988-10-20 1990-04-26

Also Published As

Publication number Publication date
CH506922A (fr) 1971-04-30
GB1279329A (en) 1972-06-28
SE363452B (US20110009641A1-20110113-C00273.png) 1974-01-14
NL160455C (nl) 1979-10-15
US3668314A (en) 1972-06-06
DE1965656C3 (de) 1979-04-12
FR1605049A (US20110009641A1-20110113-C00273.png) 1972-08-28
NL6919540A (US20110009641A1-20110113-C00273.png) 1970-07-02
DE1965656A1 (de) 1970-07-23
DE1965656B2 (de) 1978-08-10
NL160455B (nl) 1979-05-15
BE743320A (US20110009641A1-20110113-C00273.png) 1970-06-18

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