FR2359552A1 - Short period interrupter for telephone circuits - has two winding relay with CR circuit controlling time of interruption - Google Patents

Short period interrupter for telephone circuits - has two winding relay with CR circuit controlling time of interruption

Info

Publication number
FR2359552A1
FR2359552A1 FR7722380A FR7722380A FR2359552A1 FR 2359552 A1 FR2359552 A1 FR 2359552A1 FR 7722380 A FR7722380 A FR 7722380A FR 7722380 A FR7722380 A FR 7722380A FR 2359552 A1 FR2359552 A1 FR 2359552A1
Authority
FR
France
Prior art keywords
interrupter
relay
winding
interruption
contact
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.)
Granted
Application number
FR7722380A
Other languages
French (fr)
Other versions
FR2359552B1 (en
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.)
Hagenuk Vorm Neufeldt and Kuhnke GmbH
Original Assignee
Hagenuk Vorm Neufeldt and Kuhnke GmbH
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 Hagenuk Vorm Neufeldt and Kuhnke GmbH filed Critical Hagenuk Vorm Neufeldt and Kuhnke GmbH
Publication of FR2359552A1 publication Critical patent/FR2359552A1/en
Application granted granted Critical
Publication of FR2359552B1 publication Critical patent/FR2359552B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/53—Generation of additional signals, e.g. additional pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Relay Circuits (AREA)
  • Electronic Switches (AREA)

Abstract

The contact interrupter for telephone circuits provides a short clear period allowing selection of complementary lines. The interrupter circuit is designed to prevent other contact switching functions to inhibit the selection switching during the interrupt period. When the touch switch (T) is operated the capacitor (C1), charged via R1, excites the winding (F1) of a two winding relay. This opens the relay contact (f). (e2) then charges via R2 until the switching voltage of the unlatching diode (D1) is reached, then C2 discharges via the second relay winding (F2). This closes the relay contact (f). The period taken determines the time of interruption, and depends directly on the values R2,e2.
FR7722380A 1976-07-23 1977-07-21 Short period interrupter for telephone circuits - has two winding relay with CR circuit controlling time of interruption Granted FR2359552A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762633118 DE2633118C3 (en) 1976-07-23 1976-07-23 Circuit arrangement for additional signaling in telephone subscriber terminals by briefly interrupting the telephone subscriber connection line by pressing a button

Publications (2)

Publication Number Publication Date
FR2359552A1 true FR2359552A1 (en) 1978-02-17
FR2359552B1 FR2359552B1 (en) 1982-03-12

Family

ID=5983733

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7722380A Granted FR2359552A1 (en) 1976-07-23 1977-07-21 Short period interrupter for telephone circuits - has two winding relay with CR circuit controlling time of interruption

Country Status (3)

Country Link
BE (1) BE855523A (en)
DE (1) DE2633118C3 (en)
FR (1) FR2359552A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE725112C (en) * 1936-05-01 1942-09-14 Aeg Pick-up or dropout delay relay
DE968016C (en) * 1953-10-27 1958-01-02 Telefonbau & Normalzeit Gmbh Circuit arrangement for quiescent current monitored alarm systems
DE2319172A1 (en) * 1973-04-16 1974-10-31 Siemens Ag CIRCUIT ARRANGEMENT FOR SUBSCRIBER STATIONS IN REMOTE COMMUNICATION, IN PARTICULAR TELEPHONE SYSTEMS, FOR DEFINED INTERRUPTION OF THE LOOP CURRENT
US3851184A (en) * 1972-05-24 1974-11-26 Ricoh Kk Self-holding unit having a reset delay circuit
DE2345370A1 (en) * 1973-09-05 1975-03-13 Mehne Gmbh J G Timing circuit for stair lights - automatically switches the lights off after a selected time interval

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2432454A1 (en) * 1974-07-06 1976-01-22 Telefonbau & Normalzeit Gmbh Brief interruption effect producting cct - has two-terminal network controlled by switch
DE2432452C2 (en) * 1974-07-06 1983-09-22 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Circuit arrangement for generating loop criteria of a defined length

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE725112C (en) * 1936-05-01 1942-09-14 Aeg Pick-up or dropout delay relay
DE968016C (en) * 1953-10-27 1958-01-02 Telefonbau & Normalzeit Gmbh Circuit arrangement for quiescent current monitored alarm systems
US3851184A (en) * 1972-05-24 1974-11-26 Ricoh Kk Self-holding unit having a reset delay circuit
DE2319172A1 (en) * 1973-04-16 1974-10-31 Siemens Ag CIRCUIT ARRANGEMENT FOR SUBSCRIBER STATIONS IN REMOTE COMMUNICATION, IN PARTICULAR TELEPHONE SYSTEMS, FOR DEFINED INTERRUPTION OF THE LOOP CURRENT
DE2345370A1 (en) * 1973-09-05 1975-03-13 Mehne Gmbh J G Timing circuit for stair lights - automatically switches the lights off after a selected time interval

Also Published As

Publication number Publication date
DE2633118B2 (en) 1978-10-19
DE2633118C3 (en) 1981-11-19
DE2633118A1 (en) 1978-01-26
FR2359552B1 (en) 1982-03-12
BE855523A (en) 1977-10-03

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Legal Events

Date Code Title Description
ST Notification of lapse