DE3230395A1 - Switching device for connecting two or more telephone sets to a connection line - Google Patents

Switching device for connecting two or more telephone sets to a connection line

Info

Publication number
DE3230395A1
DE3230395A1 DE19823230395 DE3230395A DE3230395A1 DE 3230395 A1 DE3230395 A1 DE 3230395A1 DE 19823230395 DE19823230395 DE 19823230395 DE 3230395 A DE3230395 A DE 3230395A DE 3230395 A1 DE3230395 A1 DE 3230395A1
Authority
DE
Germany
Prior art keywords
switching device
telephone sets
connection line
rii
relay
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
DE19823230395
Other languages
German (de)
Other versions
DE3230395C2 (en
Inventor
Gunter A. Dipl.-Ing. 6100 Darmstadt Seeger
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.)
KUKE KG FRITZ
Original Assignee
KUKE KG FRITZ
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 KUKE KG FRITZ filed Critical KUKE KG FRITZ
Priority to DE3230395A priority Critical patent/DE3230395C2/en
Priority to AT0282983A priority patent/AT389785B/en
Priority to CH4284/83A priority patent/CH659750A5/en
Priority to NL8302822A priority patent/NL8302822A/en
Publication of DE3230395A1 publication Critical patent/DE3230395A1/en
Application granted granted Critical
Publication of DE3230395C2 publication Critical patent/DE3230395C2/en
Expired 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
    • H04M1/71—Substation extension arrangements
    • H04M1/715—Substation extension arrangements using two or more extensions per line

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Telephonic Communication Services (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

The invention relates to a switching device for connecting two or more telephone sets to a connection line, with the aid of which standard-production telephone sets not fitted with any of the special equipment normally required for telephone stations with a plurality of telephone sets are interconnected and by means of which one of the two telephone sets attached to the connection line which initially have equal access to the call is disconnected from the connection line through actuation of the handset of the other. The object of the invention is to design the disclosed switching device so that is small enough to fit into a normal flush-mounted socket similar to DIN 49073. This object is solved according to the invention in that the switching device contains two latching relays, one of which is in each case connected to the DC circuit of one of the telephone sets.

Description

Schalteirichtung zum Anschalten von zwei oder mehr Fernsproch-Switching direction for switching on two or more remote

apparaten an eine Anschlußleitung Schalteinrichtung zum Anschalten von zwei oder mehr Fernsprechapparaten an eine Anschlußleitung flie erfindung betrifft eine Schalteinrichtung zum Anschalten von zwei oder mehr Fernsprechapparaten an eine Anschlulileitung, mit deren Hilfe serienmäßige, ohne jede für Sprechstellen mit mehreren Fernsprechapparaten sonst übliche bonderausstattung ausgerustete Fernsprechapparate miteinander verbunden - d und mittels derer von den beiden für den Ruf zunächst gleichberechtigt an der Anschlußleitung liegenden Fernsprechapparaten der eine durch Betätigung des Handapparates des anderen von der anschlußleitung getrennt wird. devices to a connection line Switching device for connecting two or more telephones to a connection line fllie The invention relates to a switching device for switching on two or more telephone sets to a connection line, with the help of which is standard, without any for call stations Telephone sets equipped with several telephones that are otherwise customary special equipment connected to each other - d and by means of which of the two for the call initially Equal to the telephone sets lying on the connecting line through Operation of the handset of the other is disconnected from the connection line.

In einer derartigen Teilnehmereinrichtung ist ein Relaiskasten vorgesehen, an den die Anschlußleitungen und die beiden Fernsprechapparate angeschlossen sind. In jeden Stromkreis der beiden angeschlossenen Fernsprechapparate ist ein zeitverzögertes Relas und ein diesem parallel liegender Kondensator geschaltet, der den Ruf strom durchläßt. Nach Abheben des Handapparates eines Fernsprechapparates werden die beiden in der Sprechleitung liegenden Relais an Spannung gelegt, so das diese Relais die Verbindung des nicht abhebenden Fernsprechapparates zu der Anschlußleitung durch Öffnen siener Ruhekontakte unterbrechen.A relay box is provided in such a subscriber device, to which the connecting lines and the two telephones are connected. In each circuit of the two connected telephones there is a time delay Relas and a capacitor lying parallel to this connected, which streams the call lets through. After picking up the handset of a telephone set, the two The relay lying in the speech line is connected to voltage, so that these relays the Connection of the non-picking up telephone set to the connecting line through Interrupt opening of its normally closed contacts.

Diese bekanntgewordene Schalteinrichtung ist insofern nachteilig, als die verwendeten zeitverzögerten Relais wegen ihrer Baugröße einen entsprechend großen Relaiskasten bedingen Der Erfindung liegt die Aufgabe zugrunde, die bekanntgewordene Schalteinrichtung so klein zu gestalten, daß diese in einer normalen Unterputzdose nach DIN 49073 Platz findet.This switching device, which has become known, is disadvantageous in that than the time-delayed relays used because of their size require large relay box The invention is based on the object that has become known To make switching device so small that this in a normal There is space for a flush-mounted box according to DIN 49073.

Diese Aufgabe wird erfindungsgemäß dadurch gelost, daß die Schalteinrichtung zwei Haftrelais (RI,RII) enthält, von denen je eins in den Gleichstromkreis eines der Fernsprechapparate geschaltet ist.According to the invention, this object is achieved in that the switching device Contains two latching relays (RI, RII), one of which each in the DC circuit of one the telephone set is switched.

Die Verwendung von Baftrelais führt zu der gewünschten baulichen Verkleinerung der Schalteinrichtung, da diese bei erregung durch Stromimpulse unverändert in der angezogenen Stellung verbleiben und erst dann abfallen, wenn die Richtung des Erregerstroms umgekehrt wird. Die Verwendung von verzögerten Zeitrelais, deren Abmessungen lediglich verkleinert werden, wie nicht zum Ziele führen, weil diesen kleineren Relais nach jedem Stromimpuls abfallen würden.The use of Baftrelais leads to the desired structural reduction the switching device, since this remains unchanged in the remain in the attracted position and only drop when the direction of the excitation current is reversed. The use of delayed timing relays, their dimensions only be scaled down, as not to lead to the goal, because these smaller relay after would drop with each current pulse.

Weitere Merkmale der Erfindung sind in den Unteransprüchen angegeben.Further features of the invention are specified in the subclaims.

Die Erfindung wird im folgenden unter Bezumgnahme auf das in der Zeichnung dargestellte Ausführungsbeispiel näher erläutert.The invention is described below with reference to that in the drawing illustrated embodiment explained in more detail.

Durch Authehmen des Handapparates des Fernsprechapparates 2 wird der Gabelumschaltkontakt u2 umgeschaltet und dadurch die Wicklung des Haftrelais RII an Spannung gelegt, dessen Kontakte 2a, 2b, 2c und 2d geschaltet werden. Im einzelnen wird durch Schliessen des Kontaktes 2a die Wicklung der Spule von RII kurzgeschlossen.By Authehmen the handset of the telephone set 2 is the Hook switch contact u2 is switched and thereby the winding of the latching relay RII applied to voltage, whose contacts 2a, 2b, 2c and 2d are switched. In detail the winding of the coil of RII is short-circuited by closing contact 2a.

Dadurch wird die Einfügungsdampfung der Umschalteinrichtung in den Sprechstromkreis verringert.This will reduce the insertion loss of the switching device in the Speech circuit decreased.

Um Störungen oder Mithören durch den Fernsprechapparat 'I auszuschliessen, wird durch den Umschal.tkontakt 2d und den Ruhekontakt 2c die Amtsleitung zum Fernsprechapparat 1 unterbrochen. Außerdem wird durch Öffnen des Kontaktes 2c verhindert, daß der we. e. des Fernsprechapparates 1 nicht durch Wälimpulse des Fernsprechapparates 2 anspricht.To avoid interference or eavesdropping by the telephone set 'I, the exchange line to the telephone set becomes through the switchover contact 2d and the normally closed contact 2c 1 interrupted. In addition, the opening of the contact 2c prevents the we. e. of the telephone set 1 not by rolling pulses of the telephone set 2 responds.

Der Umschaltkontakt 2b bereitet das Rückwerfen des Relais RII vor, das dann erfolgt, wenn der Gabelumschalter des Fernsprechapparates 2 wieder aufgelegt wird und dadurch in seine Ausgangsstellung zurückgeschaltet wird. Die Spule des Haftrelais RII wird dadurch in entgegengesetzter Richtung vom btrom durchflossen und der Relaisanker zuruckgeworfen. Damit steht die Amtsleitung wieder beid.en Fernsprechapparaten zur Verfügung.The changeover contact 2b prepares the throwing back of the relay RII, this takes place when the hook switch of the telephone set 2 is hung up again and is thereby switched back to its original position. The coil of the As a result, the RII latching relay is traversed by the btrom in the opposite direction and the relay anchor thrown back. The exchange line is now on both telephones again to disposal.

Um zu verhindern, daß bei genau gleichzeitigem Abnehmen der Handapparate beider Fernsprechapparate 1 und 2 Behlschaltungen wie das gleichzeitige Anschalten beider Fernsprechapparate (Mithörgefahr) oder eine beidseitige Verriegelung, bei der Anrufe verloren gehen könnten, auftreten, wurde die erfindungsgemäße Schaltung asymetrisch ausgebaut, d.h.To prevent the handsets from being picked up at exactly the same time Both telephones 1 and 2 master circuits such as the simultaneous switching on both telephones (risk of eavesdropping) or a two-sided lock, at of the calls could be lost, the circuit according to the invention was implemented expanded asymmetrically, i.e.

bei gleichzeitigem Umschalten aller u-Kontakte hat der Fernsprechapparat 1 die Priorität von Fernsprechapparat 2, weil der Gabelumschaltkontakt un die Amtsleitung für den Fernsprechapparat 2 unterbricht.when switching over all u-contacts at the same time, the telephone set has 1 the priority of telephone set 2 because the hook switch contact is the exchange line for the telephone set 2 interrupts.

Die beiden Dioden D1 und D 2 haben die Aufgabe, bei einer unabsichtlich vertauschten Polarität der Anschlußleitung (dies kann versehentlich beim Neuanschluß oder nach einer Leitungsunterbrechung geschehen) diese Funktionsstörung erkennbar werden zu lassen. Sie bewirken, daß dann, wenn die Anschlußklemmen Ia und Lb vertauscht worden sind, kein Freizeichen hörbar ist, die Leitung erscheint als "tot". Nur durch Umklemmen der Anschlusse kann die Sprechstelle betriebsbereit gemacht werden.The two diodes D1 and D 2 have the task of accidentally reversed polarity of the connecting cable (this can accidentally when reconnecting or after a line interruption) this malfunction to be recognizable. They have the effect that when the terminals Ia and Lb have been swapped, no dial tone can be heard, the line appears as "dead". The call station can only be ready for operation by reconnecting the connections be made.

Soll ein Gespräch auf den anderen Apparat übergeben werden, so muß zuerst der Handapparat des übernehmenden Fornsprechapparates aufgenommen werden, bevor der Handapparat des abgebenden Fernsprechapparates aufgelegt wird.If a call is to be transferred to the other set, it must the handset of the receiving telephone set is picked up first, before the handset of the issuing telephone set is hung up.

Beim Auflegen des abgebenden Apparates schaltet der Umschaltekontakt u das von ihm angesteuerte Relais in die Ausgangslage zurück und die Amtsleitung wird auf den übernehmenden Apparat umgeschaltet.When the dispensing device is hung up, the changeover contact switches u return the relay controlled by it to its starting position and the exchange line is switched to the receiving set.

LeerseiteBlank page

Claims (4)

A n s p r ü c h e : 1. Schalteinrichtung zum Anschalten von zwei oder mehr Fernsprechapparaten an eine Anschlußleitung, mit deren Hilfe serienmäßige, ohne jede für Sprechstellen mit mehreren Fernsprechapparaten sonst übliche Sonderausstattung ausgerüstete Fernsprechapparate miteinander verbunden sind und mittels derer von den beiden für den Ruf zunächst gleichberechtigt an der Anschlußleitung liegenden Fernsprechapparaten der eine durch Betätigung des Handapparates des anderen von der Anschlußleitung getrennt wird, dadurch g e k e n n z e i c h n e t, daß die Schalteinrichtung zwei Haftrelais (RI,RII) enthält, von denen je eins in den Gleichstromkreis eines der Fernsprechapparate geschaltet ist 2. Schalteinrichtung nach Anspruch 1, dadurch g e k e n n -z e i c h n e t, daß jedes Haftrelais (RI,RII) mit einem Uberebrückungskontakt (1a,2a) ausgestattet ist.R e p r u c e: 1. Switching device for connecting two or more telephones on one connection line, with the help of which standard, without any special equipment that is otherwise customary for call stations with several telephones equipped telephone sets are interconnected and by means of those of the two lying on the connecting line with equal rights for the call Telephone sets of one by operating the handset of the other of the connection line is disconnected, in that the Switching device contains two latching relays (RI, RII), one of which is in the direct current circuit one of the telephone sets is switched 2. Switching device according to claim 1, This means that each latching relay (RI, RII) has a bridging contact (1a, 2a) is equipped. ). Schalteinrichtung nach Anspruch 1 und ;', dadurch g e -k e n n z e i c h n e t, daß das Haftrelais ( zu des zweiten Fernsprechapparates (2) einen zusätzlichen Umschaltkontakt (2d) hat, der bei Erregung dieses Haltrelais (RII) die Anschlußleitung zu dem ersten Fernsprechapparat (1) unterbricht.). Switching device according to claim 1 and; ', characterized in that g e -k e n n z e i c h n e t that the latching relay (to the second telephone set (2) a has an additional changeover contact (2d), which when this hold relay (RII) is excited interrupts the connection line to the first telephone set (1). 4. Schalteinrichtung nach Anspruch 1-3, dadurch g e k e n nz e i c h n e t, daß in die Stromzuführungsleitung eines jeden Haftrelais (RI,RII) eine Diode (D) geschaltet ist, die ein Ansprechen des Haftrelais bei einer Polanni@@tsänderung der Anschlußleitung verhindert.4. Switching device according to claim 1-3, characterized in that g e k e n nz e i c n e t that in the power supply line of each latch relay (RI, RII) one Diode (D) is connected, which activates the latching relay in the event of a Polanni @@ ts change the connecting line prevented. 3. Schalteinrichtung nach den Ansprüchen 1 - 4, dadurch g e k e n n z e i c h n e t, daß parallel zu jeden Haftrelais (RI,RII) ein Kondensator (C) geschaltet ist.3. Switching device according to claims 1-4, thereby g e k e n n z e i c h n e t that parallel to each latching relay (RI, RII) a capacitor (C) is switched.
DE3230395A 1982-08-11 1982-08-11 Switching arrangement for connecting two completely equal telephones to a connection line Expired DE3230395C2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE3230395A DE3230395C2 (en) 1982-08-11 1982-08-11 Switching arrangement for connecting two completely equal telephones to a connection line
AT0282983A AT389785B (en) 1982-08-11 1983-08-04 CIRCUIT FOR CONNECTING TWO EQUALIZED TELEPHONES TO ONE CONNECTING LINE
CH4284/83A CH659750A5 (en) 1982-08-11 1983-08-08 SWITCHING DEVICE FOR CONNECTING TWO PHONES TO ONE LINE.
NL8302822A NL8302822A (en) 1982-08-11 1983-08-11 SWITCHING DEVICE FOR SWITCHING TWO OR MORE TELEPHONE ON A CONNECTOR.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3230395A DE3230395C2 (en) 1982-08-11 1982-08-11 Switching arrangement for connecting two completely equal telephones to a connection line

Publications (2)

Publication Number Publication Date
DE3230395A1 true DE3230395A1 (en) 1984-02-23
DE3230395C2 DE3230395C2 (en) 1986-12-18

Family

ID=6170965

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3230395A Expired DE3230395C2 (en) 1982-08-11 1982-08-11 Switching arrangement for connecting two completely equal telephones to a connection line

Country Status (4)

Country Link
AT (1) AT389785B (en)
CH (1) CH659750A5 (en)
DE (1) DE3230395C2 (en)
NL (1) NL8302822A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3524454A1 (en) * 1985-07-09 1987-01-15 Norbert Moch Circuit arrangement for connecting a plurality of telephone sets to a subscriber terminal of a telephone system
DE3633562C1 (en) * 1986-10-02 1987-12-03 Neumann Elektronik Gmbh Change-over switching device for a telephone facility for connecting a number of extensions to a common telephone line
DE3633561C1 (en) * 1986-10-02 1988-01-07 Neumann Elektronik Gmbh Change-over switching device for a telephone facility for connecting a number of extensions to a common telephone line
DE3833745A1 (en) * 1988-10-01 1990-04-12 Elmeg Kommunikationstech Changeover switching device for a number of extensions to be operated on a common subscriber line

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3824633A1 (en) * 1988-07-20 1990-01-25 Rutenbeck Wilhelm Gmbh & Co Circuit arrangement for an automatic changeover switch to connect two telephone sets

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1028624B (en) * 1956-08-04 1958-04-24 Deutsche Telephonwerk Kabel Circuit arrangement for two-way connections
DE2542409B2 (en) * 1975-09-23 1979-04-12 Siemens Ag, 1000 Berlin Und 8000 Muenchen Circuit arrangement for telephone systems with a main unit and an extension unit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH474929A (en) * 1968-02-26 1969-06-30 Elmeg Common switch for two subscriber stations on a common connection line

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1028624B (en) * 1956-08-04 1958-04-24 Deutsche Telephonwerk Kabel Circuit arrangement for two-way connections
DE2542409B2 (en) * 1975-09-23 1979-04-12 Siemens Ag, 1000 Berlin Und 8000 Muenchen Circuit arrangement for telephone systems with a main unit and an extension unit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3524454A1 (en) * 1985-07-09 1987-01-15 Norbert Moch Circuit arrangement for connecting a plurality of telephone sets to a subscriber terminal of a telephone system
DE3633562C1 (en) * 1986-10-02 1987-12-03 Neumann Elektronik Gmbh Change-over switching device for a telephone facility for connecting a number of extensions to a common telephone line
DE3633561C1 (en) * 1986-10-02 1988-01-07 Neumann Elektronik Gmbh Change-over switching device for a telephone facility for connecting a number of extensions to a common telephone line
DE3833745A1 (en) * 1988-10-01 1990-04-12 Elmeg Kommunikationstech Changeover switching device for a number of extensions to be operated on a common subscriber line

Also Published As

Publication number Publication date
ATA282983A (en) 1989-06-15
DE3230395C2 (en) 1986-12-18
NL8302822A (en) 1984-03-01
CH659750A5 (en) 1987-02-13
AT389785B (en) 1990-01-25

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