DE1030399B - Circuit arrangement for telephone systems in which the intercom of a company at which a certain person is located is identified in the exchange by an incentive over the voice wires - Google Patents

Description

GERMAN

The invention relates to a circuit arrangement for telephone systems, in which the speech station of the company at which a certain person is located in the exchange through a Incentive is marked on the voice lines so that the specific person can call this Intercom can be reached.

It is known that a call stimulus given by looping can also be used after the handset has been hung up to save the intercom and for this special stimulus state the call lamp in a flickering state to turn on. With such an arrangement, all other call lamps are then more calling as well Make switched on when the switching on of the call lamps from the operation of a switch is dependent on the civil servant. In this case, considerable attention is required from the officer, to perceive the individual switching states of the call lamp and to evaluate them accordingly.

It is also known to generate a special signal independently of the loop of the call station by pressing a button to be switched on at a special place that is saved independently of the keystroke. Even With this arrangement, several call lamps are switched on when several connection lines are in the call state, so that even then it is not possible to clearly identify an individual call station, when the call lamps are switched on via a special switch of the extension officer.

It is also already known to identify a call station in the vicinity of which a certain Person is, through a special incentive on the voice wires, the subscriber connection lamp in turn on in different ways. If further switching states are indicated by the call lamps, how this z. B. in the telephone operation of hotel facilities is the case, it is from the operator Considerable attention is required to the individual switching states of the call lamps perceive and evaluate accordingly.

The aim of the invention is to identify a specific one with the least possible effort and only when necessary To identify the place of operation in a clear way by the call lamp on the intercom. This is achieved according to the invention by the fact that the stimulus on the speech veins is one Connection line to the exchange for the identification of the intercom, in the vicinity of which there is a particular person is located, switching means are controlled, which the circuit of the subscriber call lamp Prepare this intercom station, which after actuation of the switch by the officer at the same time Circuit arrangement

for telephone systems,

at which the call station of a company,

at which a certain person is located in the exchange through a

Incentive through the speech arteries

is marked

Applicant:

Siemens & Halske Aktiengesellschaft,

Berlin and Munich,
Munich 2, Wittelsbacherplatz 2

Alois Vogt and Winfried Rolland, Munich,
have been named as inventors

Separation of the lamp circuits of all other connecting lines is closed.

An exemplary embodiment of the invention is shown in the drawing. The connecting lines of the call stations N 1 and ZV 2 end on jacks KN1 and KN2. If the receiver is lifted at the intercom station 2Vl to establish a telephone connection, the relays Xl and TVl are switched on:

1. +, II Nl, TxI, IXl, IZVl, jack contact 1, loop of the call station TV, HUl, jack contact 2, IIXl, -.

Only relay JV1 is energized, while the opposing windings IXl and HXl prevent the X relay from responding. The ALI lamp is switched on via the following circuit:

2. +, 8ST, ALI, -.

Interrupter FUl, UnI, 12j; 1,

The lamp is switched on in a specific flicker rhythm, for example in a fast flicker rhythm, by the interrupter FU1. If the interrogating officer puts the plug, not shown, into the latch XiVl, the call circuit at the latch contacts 1 and 2 is interrupted, the relay 2Vl drops out. The call lamp

809 527/172

AL 1 is switched on continuously via the jack contact 3 as a busy signal:

3. +, 8ST, jack contact 3, ALI, - .

If the intercom N2 initiates a special call for the officer, e.g. B. in hotel facilities to .Herbeirufen a certain person, the key T 2 is to be pressed temporarily at the station N 2. The following circle is established:

4. +, T2, jack contact 5, 11X2, -.

The relay X 2 responds. The following circuit is now also established for the relays N2 and X2 via the speech wires and the jack contact 4:

5. +, T2, jack contact 4, IN2, 1X2, 14x2, resistance Wi 2, -.

direction can be made. The relay X2 is switched on by the button contact T 21:

11. + .. Γ21, hook switch HU2 at rest, latch contact 5, II X 2, -.

Relay X 2 closes contact 19 χ 2. This prepares a circuit for lamp AL2.

If it now turns out that the particular ίο person must be looked for by the officer, the officer has to flip the switch ST in the working position. The lamp ^ iL2 is switched on in the following way:

12. +, 26ST, 27n2, 19x2, AL2, -.

After releasing the button Γ 2, the following holding circuit exists for the relays N2 and X2:

6. +, 15LT, 16w2, 17x2, jack contact4, IN2, 1X2, 14x2, resistor Wi2, -.

When relays N 2 and X 2 respond, the following circuit is established for the AL 2 call lamp:

7. +, 8ST, breaker FU2, 18ra2, 19x2, AL2, -.

Through the interrupter FU2 , the lamp It only lights up the lamp AL 2 and thus indicates the presence of the desired person in the vicinity of the intercom N2, while all other call lamps go out by opening the key contact 8 ST .

If, while the search signal is switched on by pressing the ST button, the busy circuit via the button contact 8 .ST and jack contact 3 or the special call circuit via the button contact takt85T, breaker FUl and contacts 9 n \ and 10x1, these circuits are opened at the button contact 8ST . The associated call lamp does not light up on any other jack. The lamp AL2 can therefore be used to identify the search signal in this

AL2 in a different flicker rhythm, e.g. B. long-30 switching status light up in the same way that sam flickering, switched on. in and of itself also a different switching state

The officer is already identified with the guest at the intercom. In the present case, the desired person is sent through N2. To extinguish the ALI lamp and the search status by continuing the call, the LT button is pressed. The lamp lights up on the contact. Holding circuit 6 is interrupted by permanent-15 LT. The lamp AL 1 will also burn, as already relays N2 and X 2 return to the rest position. described, the busy status of a call station

Is indicated during the actuation of the delete key LT , so that the same signal indicates two different processes for interrupting the holding circuit 6,
After switching on the lamp AL2 as a search signal, another place, for example from the intercom station N 1

Special call initiated, through which the relays Nl and 40, the officer puts the switch ST back into idle mode, so the situation is also back. The pre-existing circuits of the

Call lamps are restored. The officer can by inserting a plug into the handle KN2

τι n _n 1 oi λ τ> oott * wA * α ^e i ^ne speech connection with the call station N 2 establish-ϊ * - '' ^{forest stand} 45 and after reporting the person you are looking for this

communicate the present order. When the plug is inserted into the KN 2 latch, the circuit of relay X 2 is interrupted. The person being searched for returns the key contact T21 to the rest position by pulling the key in question from the device provided for this purpose when leaving the room.

Relay R established a circuit while the reset button LT is pressed:

The relay R is kept energized independently of the contacts 20x1, 21 wl and 22LT in the following way:

9. +, 23r, R, 24r, WiZ, -.

While the delete button is pressed, there is a holding circuit for the relay iVlundXl even after the button Tl has been released on the call station Nl:

10. +, 23r, 21 »1, 20x1, jack contact 1, IiVl, IXl, 24x1, WiI, -.

55

After releasing the delete button LT , the relay R is short-circuited via contact 25 LT. The relay R drops out. The holding circuit for the relays Nl and Xl runs over the key contact 15 LT.

If there is a certain person in the vicinity of the intercom station N2, e.g. As a specific person of the service staff, and to this person 6g are marked in the vicinity of the telephone N 2 in the central office the presence, the switch TastenkontaktT21 is put into the working position at the station N2. " This can e.g. B. by inserting a certain key in a jier for certain

Claims (7)

Patent claims: 1. Circuit arrangement for telephone systems in which the call station of a company at which a certain person is located is characterized in the exchange by an incentive over the speech wires, characterized in that the stimulus over the speech wires of a connecting line for the identification of the speech station , in the vicinity of which there is a certain person, Schaltmitted (relay X) are controlled in the exchange, which prepare the circuit of the call lamp (ALI) of this intercom (Nl) , after pressing a switch (ST) by the officer with simultaneous disconnection the circuits for the call lamps of all other connection lines is closed. 2. Circuit arrangement according to claim 1, characterized in that the call lamps are switched on by the switching means (jack contact) and by the relay (A ^r l and Xl) controlled by the call station during a special call (A r l and Xl) illuminating in different ways. 3. Circuit arrangement according to claim 2, characterized in that the circuit of the call lamp is prepared in such a way that after actuation of the switch ( relay X) when there is an incentive to identify the presence of a particular person at the intercom station by the switching means (relay X) that come into effect ST) by the officer the call lamp lights up in a switching state that also indicates another switching state. 4. A circuit arrangement according to claim 3, characterized in that the call lamp is switched on after actuation of the switch (ST) in which the occupancy of the connection point characterizing state. 5. A circuit arrangement according to claim 2, characterized in that the call lamp for the presence identification and for the special call to the officer is controlled by relays (X 1 and N 1), which are brought into effect in different ways by different types of earth connection to the speech cores. 6. Circuit arrangement according to claim 5, characterized in that the call lamp for the special call to the officer is controlled by relays (Nl, Xl) , which come into effect by temporarily grounding both speech wires and are switched into a holding circuit, which is via a delete button (LT ) runs. 7. Circuit arrangement according to claim 6, characterized in that during the actuation of the delete button (LT) and in the event of a special call via a connection line switching means (relay 7?) Are switched on, through which this special call also in the actuation time of the delete button (LT ) is maintained. Considered publications:
German Patent Nos. 506 647, 828 560;
Swiss Patent No. 294 521;
Siemens-Zeitschrift, Volume 27, April 1953, p. 165. 1 sheet of drawings 1 8OJ 527/172 p.