DE3215757A1 - Internal connection switch for in-house telephone or PABX telecommunications systems - Google Patents

Internal connection switch for in-house telephone or PABX telecommunications systems

Info

Publication number
DE3215757A1
DE3215757A1 DE19823215757 DE3215757A DE3215757A1 DE 3215757 A1 DE3215757 A1 DE 3215757A1 DE 19823215757 DE19823215757 DE 19823215757 DE 3215757 A DE3215757 A DE 3215757A DE 3215757 A1 DE3215757 A1 DE 3215757A1
Authority
DE
Germany
Prior art keywords
internal connection
connection switch
pabx
switch
telephone
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.)
Withdrawn
Application number
DE19823215757
Other languages
German (de)
Inventor
Klaus 1000 Berlin Hornburg
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.)
ADC GmbH
Original Assignee
Krone 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 Krone GmbH filed Critical Krone GmbH
Priority to DE19823215757 priority Critical patent/DE3215757A1/en
Publication of DE3215757A1 publication Critical patent/DE3215757A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)

Abstract

The subject matter of the invention is an internal connection switch of an in-house telephone or PABX system which is designed as an FET switch to whose channel output (D or S, Drain or Source) further analog switches, selectable in any number, can be connected, and to whose input (G, gate) the controller (St) of the internal connections of the individual telephone sets is connected. <IMAGE>

Description

Innenverbindungsschalter für fernmeldetechnische Heimte-Internal connection switch for telecommunications home telecommunications

lefon- oder Nebenstellenanlagen Die Erfindung betrifft einen Innenverbindungsschalter für fernmeldetechnische Heimtelefon- oder Nebenstellenanlagen.Telephone or private branch exchange systems The invention relates to an internal connection switch for telecommunications-related home telephone or private branch exchange systems.

In Heimtelefon- und Nebenstellenanlagen bekannter, herkömml icher Bauarten wird die Verbindung von Fernsprechapparaten untereinander durch elektromagnetische Relais hergestellt.In home telephones and private branch exchanges known, conventional Types is the connection of telephones with each other by electromagnetic Relay manufactured.

Je nach Anzahl der intern miteinander zu verbindenden Teilnehmerstellen und abhängig von dem hierbei auftretenden Steuerungsaufgaben ist eine größere Anzahl von Relais erforderlich, die einen erheblichen Platz- und Energiebedarf aufweisen.Depending on the number of subscriber stations to be connected internally and a larger number depends on the control tasks involved of relays required, which have a considerable space and energy requirements.

Der Erfindung liegt die Aufgabe zugrunde, die oben erwähnten Nachteile zu vermeiden.The invention is based on the above-mentioned disadvantages to avoid.

Durch den Einsatz eines neuen Verbindungsschalters werden folgende erfindungsbestimmende Vorteile erreicht: 1. FET-Schalter sind integrationsfähig und sparen damit erheblichen Platzbedarf ein.By using a new connection switch, the following Advantages defining the invention achieved: 1. FET switches can be integrated and thus save a considerable amount of space.

2. Die neue Anordnung ist kostengünstiger und hat einen geringeren Energiebedarf.2. The new arrangement is cheaper and has a smaller one Energy requirements.

3. Der Ruftakt kann durch Verwendung von z.B. einem C MOS-Generator mit geringem Energiebedarf erzeugt werden.3. The call cycle can be achieved by using, for example, a C MOS generator can be generated with low energy consumption.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß anstelle der Rel ai sschal tungen ein FET-Schal ter eingesetzt wird, an dessen Kanal ausgang weitere in ihrer Anzahl beliebig wählbare Analogschalter anschließbar sind, und an dessen Eingang (Gate) die Steuerung der Apparateverbindungen angeschlossen ist.The object is achieved in that instead of the Relay switching a FET switch is used at the channel output further analog switches of any number can be connected, and the control of the device connections is connected to its input (gate).

Vorteilhafte weitere Ausgestaltungen der einzelnen Maßnahmen dieser Erfindung sind im Unteranspruch gekennzeichnet.Advantageous further refinements of the individual measures of this Invention are characterized in the dependent claim.

Die Erfindung soll anhand des in der Zeichnung dargestellten Ausführungsbeispieles näher erläutert werden.The invention is based on the embodiment shown in the drawing are explained in more detail.

Die Fig.l zeigt den als Innenverbindungsschalter angeordneten FET-Schalter 1, in diesem Ausführungsbeispiel C MOS-Analogschalter (Transmissions-Gate) G.Fig.l shows the FET switch arranged as an internal connection switch 1, in this embodiment C MOS analog switch (transmission gate) G.

Ferner zeigt die Fig.l eine kurzschlußfeste Konstantstromquelle für den Fernsprechapparat 2, welche die Wechselspannungsübertragung gestattet und, da sie kurzschlußfest ist, eine aktive Weckerrufschaltung zuläßt, die wiederum eine diskrete Rufwechsel spannung erspart.Furthermore, the Fig.l shows a short-circuit-proof constant current source for the telephone set 2, which allows the AC voltage transmission and, there it is short-circuit proof, allows an active alarm call circuit, which in turn has a discreet ringing saves tension.

Die Rufwechselspannung wird hier durch einen C MOS-Generator mit geringem Energiebedarf (nicht dargestellt) erzeugt, der in vorteilhafter Weise nur den Steuerstrom für den Rufschalttransistor Ts 1 aufzubringen hat.The ringing alternating voltage is here by a C MOS generator with low Energy demand (not shown) generated, which advantageously only the control current has to apply for the ringing transistor Ts 1.

Die Anschaltung der Rufwechsel spannung erfolgt durch eine Rufsteuerschaltung.The connection of the ring alternating voltage is done by a call control circuit.

Durch den geringen Kanalwiderstand von C MOS-Analogschaltern 1 lassen sich Reichweiten, die bei Heimtelefon- und Nebenstellenanlagen üblich sind, bewältigen.Allowed by the low channel resistance of C MOS analog switches 1 Cope with ranges that are common with home telephones and private branch exchanges.

Der in Fig.l dargestellte Potentialtrennkondensator C1 trennt den Gleichspannungsanteil ab.The potential separation capacitor C1 shown in Fig.l separates the DC voltage component.

Als tiberspannungsschutz ist in bekannter Weise eine Zenerdiode Z1 vorgesehen.A Zener diode Z1 is used as overvoltage protection in a known manner intended.

Über den Eingang G (Gate) des C MOS-Analogschalters 1 erfolgt die Steuerung ST zur Innenverbindung der einzelnen Fernsprechapparate.The input G (gate) of the C MOS analog switch 1 is used Control ST for internal connection of the individual telephones.

Am Kanal ausgang Drain oder Source - D oder S - sind weitere in ihrer Anzahl beliebig wählbare Analogschalter anschließbar.At the channel output Drain or Source - D or S - there are more in their Any number of selectable analog switches can be connected.

LeerseiteBlank page

Claims (2)

Patentansprüche-Innenverbindungsschalter für fernmeldetechnische Heimtelefon- oder Nebenstellenanl agen, dadurch gekennzeichnet, daß als Innenverbindungsschalter einer Heimtelefon- oder Nebenstellenanl age zu weiteren Fernsprechapparaten ein FET-Schalter (1) angeordnet ist, an dessen Kanal eingang (D oder S, Drain oder Source) weitere in ihrer Anzahl beliebig wählbare Analogschalter anschließbar sind und an dessen Eingang (G, Gate) die Steuerung (ST) der Innenverbindungen der einzelnen Fernsprechapparate angeschlossen ist. Claims-internal connection switch for telecommunications Home telephones or private branch exchanges, characterized in that as an internal connection switch a home telephone or private branch exchange to other telephones FET switch (1) is arranged on whose channel input (D or S, drain or source) further analog switches, freely selectable in their number, can be connected and on whose input (G, Gate) controls (ST) the internal connections of each Telephone set is connected. 2.2. Innenverbindungsschalter nach Anspruch 1, dadurch gekennzeichnet, daß, bedingt durch die Verwendung von FET-Schaltern (1), in Verbindung mit einer Konstantstromquelle eine Rufanschaltung ermöglicht wird mit einem Rufschalttransistor (Ts 1), der einen nur geringen Steuerstrom benötigt.Internal connection switch according to Claim 1, characterized in that that, due to the use of FET switches (1), in conjunction with a Constant current source a call connection is made possible with a call switching transistor (Ts 1), which only requires a small control current.
DE19823215757 1982-04-28 1982-04-28 Internal connection switch for in-house telephone or PABX telecommunications systems Withdrawn DE3215757A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823215757 DE3215757A1 (en) 1982-04-28 1982-04-28 Internal connection switch for in-house telephone or PABX telecommunications systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823215757 DE3215757A1 (en) 1982-04-28 1982-04-28 Internal connection switch for in-house telephone or PABX telecommunications systems

Publications (1)

Publication Number Publication Date
DE3215757A1 true DE3215757A1 (en) 1983-11-03

Family

ID=6162127

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823215757 Withdrawn DE3215757A1 (en) 1982-04-28 1982-04-28 Internal connection switch for in-house telephone or PABX telecommunications systems

Country Status (1)

Country Link
DE (1) DE3215757A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1937359B2 (en) * 1969-07-23 1970-05-21 Licentia Gmbh Circuit arrangement for checking the occupancy status of subscriber stations in telecommunication systems, in particular telephone systems
DE2154237B2 (en) * 1970-11-02 1975-01-16 International Standard Electric Corp., New York, N.Y. (V.St.A.) PBX
DE2942434A1 (en) * 1978-10-18 1980-04-30 Nippon Telegraph & Telephone CIRCUIT ARRANGEMENT FOR TELECOMMUNICATION CONNECTIONS

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1937359B2 (en) * 1969-07-23 1970-05-21 Licentia Gmbh Circuit arrangement for checking the occupancy status of subscriber stations in telecommunication systems, in particular telephone systems
DE2154237B2 (en) * 1970-11-02 1975-01-16 International Standard Electric Corp., New York, N.Y. (V.St.A.) PBX
DE2942434A1 (en) * 1978-10-18 1980-04-30 Nippon Telegraph & Telephone CIRCUIT ARRANGEMENT FOR TELECOMMUNICATION CONNECTIONS

Non-Patent Citations (14)

* Cited by examiner, † Cited by third party
Title
DE-Unterr.Bl.d.Deutsch.Bundesp.1981,Nr6,S.229-238 *
DE-Z: Elektrisches Nachrichtenwesen, Bd.53, Nr.3, 1978, S.218-230 *
DE-Z: Elektrisches Nachrichtenwesen, Bd.53, Nr.4, 1978, S.294-303 *
DE-Z: Elektrisches Nachrichtenwesen, Bd.58, Nr.1 S1980, S.57-62
DE-Z: Elektrisches Nachrichtenwesen, Bd.58, Nr.1 S1980, S.57-62, DE-Z: Fernmeldepraxis, Bd.58,Nr.24,1981,S.957-968 *
DE-Z: Fernmeldepraxis, Bd.58,Nr.24,1981,S.957-968
De-Z: Fernmeldepraxis, Bd.59, Nr.8,1982,S.319-329 *
DE-Z: Fernmeldepraxis, Bd.59,Nr.5,1982,S.165-184 *
DE-Z: Nachrichtentechnische Zeitschr., Bd.32, 1979H-8, S.532-537 *
DE-Z: Nachrichtentechnische Zeitschrift, Bd.31, 1978, H.10, S.746-751 *
DE-Z: Nachrichtentechnische Zeitschrift, Bd.31, 1978, H.5, S.339-342 *
DE-Z: TN-Nachr. 1978,H.79, S.8-26 *
US-Z: Ericsson Rev. No.1, 1981, S.30-37 *
US-Z: IEEE Journal of Solid-State-Circuits, Vol. SC-13, No.2, Apr. 1978, S.210-218 *

Similar Documents

Publication Publication Date Title
DE2947283B1 (en) Lossless automatic reverse polarity protection device
DE3215757A1 (en) Internal connection switch for in-house telephone or PABX telecommunications systems
DE2922271A1 (en) ELECTRONIC CONNECTION ARRANGEMENT FOR A TELEPHONE SUBSCRIBER LINE
DE3633562C1 (en) Change-over switching device for a telephone facility for connecting a number of extensions to a common telephone line
DE1537861A1 (en) Telephone circuit
DE3705816C2 (en)
DE3641763C2 (en)
DE929619C (en) Transistor switching network with number group for message systems
EP0010720A1 (en) Fully electronic loop closure circuit
DE3001548C2 (en) Circuit arrangement for the transmission of signals to and from a subscriber station of a telephone private branch exchange
EP0286793B1 (en) Circuitry for the overvoltage protection and the supply of a ringing current at a telecommunication connection line, especially a telephone exchange line
DE2949513A1 (en) EMERGENCY SYSTEM
DE3907343C2 (en)
DE2650835C2 (en) Circuit arrangement for the transmission of two binary single-current direct current signals
DE1537832C (en) Circuit arrangement for telephone extension systems with a tracking device to prevent impermissible connections
DE3833745C2 (en)
DE2132993A1 (en) ELECTRONIC REPOLER
DE2732532C2 (en) Telephone set for single and double used subscriber lines
DE2729469C2 (en) Intercom
EP0264644A2 (en) Circuit arrangement for simulating the NSI contact by means of the hold circuit in a two-way telephone set
DE1166839B (en) Circuit arrangement for two-way connections
DE1537832B2 (en) Circuit arrangement for telephone extension systems with a tracking device to prevent impermissible connections
DE2546852A1 (en) Telephone system polarity independent coupling circuit - connects terminal to lines using bistable relays as automatic reversing contacts
DE1149751B (en) Circuit arrangement for test circuits to prevent double assignments
DE2130083A1 (en) Electronic pole reverser

Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee