JPS5654161A - Circuit device for preventing harmful operation of ac voltage component when recording switching state of switching circuit - Google Patents

Circuit device for preventing harmful operation of ac voltage component when recording switching state of switching circuit

Info

Publication number
JPS5654161A
JPS5654161A JP13242280A JP13242280A JPS5654161A JP S5654161 A JPS5654161 A JP S5654161A JP 13242280 A JP13242280 A JP 13242280A JP 13242280 A JP13242280 A JP 13242280A JP S5654161 A JPS5654161 A JP S5654161A
Authority
JP
Japan
Prior art keywords
selector
circuit
switching
voltage component
inputs
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.)
Pending
Application number
JP13242280A
Other languages
English (en)
Inventor
Rehinaa Rooberuto
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of JPS5654161A publication Critical patent/JPS5654161A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2272—Subscriber line supervision circuits, e.g. call detection circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Electronic Switches (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Color Television Systems (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP13242280A 1979-09-26 1980-09-25 Circuit device for preventing harmful operation of ac voltage component when recording switching state of switching circuit Pending JPS5654161A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792938946 DE2938946A1 (de) 1979-09-26 1979-09-26 Schaltungsanordnung zur verhinderung der nachteiligen auswirkung von wechselspannungsanteilen bei der registrierung des schaltzustandes in einem insbesondere durch teilnehmeranschlussleitungen in fernsprechvermittlungsanlagen gebildeten schaltkreis

Publications (1)

Publication Number Publication Date
JPS5654161A true JPS5654161A (en) 1981-05-14

Family

ID=6081891

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13242280A Pending JPS5654161A (en) 1979-09-26 1980-09-25 Circuit device for preventing harmful operation of ac voltage component when recording switching state of switching circuit

Country Status (6)

Country Link
US (1) US4336424A (ja)
EP (1) EP0026412B1 (ja)
JP (1) JPS5654161A (ja)
AT (1) ATE5119T1 (ja)
DE (2) DE2938946A1 (ja)
ZA (1) ZA805950B (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3207318A1 (de) * 1982-03-01 1983-09-08 Siemens AG, 1000 Berlin und 8000 München Teilnehmeranschlussschaltung mit niederohmig ueberbrueckbaren speisewiderstaenden und einer unterschiedliche indikationen durchfuehrenden indikationsschaltung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL52905C (ja) * 1937-08-21
US2755340A (en) * 1951-01-22 1956-07-17 Nederlanden Staat Circuit reserving system
FR2286573A1 (fr) * 1974-09-24 1976-04-23 Constr Telephoniques Circuit d'exploration pour systeme de commutation
DE2542615A1 (de) * 1975-09-24 1977-04-07 Siemens Ag Schaltungsanordnung fuer fernmeldevermittlungsanlagen, insbesondere fernsprechvermittlungsanlagen, zur erkennung des anrufzustandes auf teilnehmerleitungen

Also Published As

Publication number Publication date
EP0026412B1 (de) 1983-10-19
ATE5119T1 (de) 1983-11-15
DE2938946A1 (de) 1981-04-09
US4336424A (en) 1982-06-22
EP0026412A1 (de) 1981-04-08
ZA805950B (en) 1981-09-30
DE3065378D1 (en) 1983-11-24

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