CH509021A - Method and circuit arrangement for electrical wire testing in switching elements in telecommunications, in particular telephone switching systems - Google Patents

Method and circuit arrangement for electrical wire testing in switching elements in telecommunications, in particular telephone switching systems

Info

Publication number
CH509021A
CH509021A CH208470A CH208470A CH509021A CH 509021 A CH509021 A CH 509021A CH 208470 A CH208470 A CH 208470A CH 208470 A CH208470 A CH 208470A CH 509021 A CH509021 A CH 509021A
Authority
CH
Switzerland
Prior art keywords
telecommunications
circuit arrangement
electrical wire
particular telephone
switching elements
Prior art date
Application number
CH208470A
Other languages
German (de)
Inventor
Waitz Gerhard
Schaefter Gottwald
Treffinger Hans
Original Assignee
Int Standard Electric 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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of CH509021A publication Critical patent/CH509021A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
CH208470A 1969-02-14 1970-02-12 Method and circuit arrangement for electrical wire testing in switching elements in telecommunications, in particular telephone switching systems CH509021A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691907564 DE1907564A1 (en) 1969-02-14 1969-02-14 Method and circuit arrangement for testing electrical wires in switching elements in telecommunication systems, in particular telephone switching systems

Publications (1)

Publication Number Publication Date
CH509021A true CH509021A (en) 1971-06-15

Family

ID=5725312

Family Applications (1)

Application Number Title Priority Date Filing Date
CH208470A CH509021A (en) 1969-02-14 1970-02-12 Method and circuit arrangement for electrical wire testing in switching elements in telecommunications, in particular telephone switching systems

Country Status (3)

Country Link
CH (1) CH509021A (en)
DE (1) DE1907564A1 (en)
FR (1) FR2035312A5 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7307354A (en) * 1973-05-25 1974-11-27

Also Published As

Publication number Publication date
FR2035312A5 (en) 1970-12-18
DE1907564A1 (en) 1970-09-03

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Legal Events

Date Code Title Description
PL Patent ceased