DE614674C - Circuit arrangement for telephone systems with dialer operation - Google Patents

Description

GERMAN EMPIRE

ISSUED ON
June 14, 1935

REICH PATENT OFFICE

PATENT LETTERING

JVi 614674 CLASS 2f a ³ GROUP 34oi

Patented in the German Empire on January 11, 1930

The invention relates to a circuit arrangement for telephone systems with dialer operation and especially for those systems in which several voters are set synchronously by power surges.

The object of the invention is to provide a particularly simple and operationally reliable device for the simultaneous compulsory recruitment of several voters to create which ones for different Purposes can be used.

According to the invention this is achieved in that after setting the voters in Adjustment path as a function of current surges emitted by a calling station from the free choice of one of these voters power surges to the compulsory setting of a voter in the parallel path to the same numbered Contacts are sent to trigger special switching processes.

A particular advantage of the arrangement is that it can be used for voters with multiple line groups optionally in certain groups the voters forcibly on lines with the same number and in other groups each voter automatically on a z. B. to be able to set free line of the group. the However, the invention is not limited to such arrangements.

The invention is illustrated and described using an exemplary embodiment.

In this embodiment it is assumed that in a telephone system in which lines in need of reinforcement and lines not in need of reinforcement are interconnected via voters, the identification sign for the activation of an amplifier device into the lines via the parallel to the main path (adjustment path) Given away and the activation is effected.

It is assumed that after the I. group selector has been assigned from the remote office, the requested line through. Number bursts, as usual, is selected. Parallel to I. Group selector runs at the end of the first series of impulses, a rotary selector of your choice with and occupies a free lever-operated rotary selector, which corresponds to the second group selector in the adjustment path is equivalent to. The second series of pulses represents both the II. Group selector and the Selector of the parallel path on the relevant height step.

Via the individual decades of the second group selector, either lines, which are to be operated via amplifiers, i.e. those that need to be sold or those that do not need to be amplified Lines can be reached. Likewise, line selectors can also be connected, via which those likewise in need of amplification and lines that do not require reinforcement can be reached. In the latter case, of course, the parallel path must also be used be equipped with another voter that this line selector in

*) The patent seeker indicated the following as the inventors:

Alfred Scheunert and Rudolf Dahms in Berlin-Siemensstadt.

Adjustment path corresponds and is provided with the same facilities as the parallel group selector. This line selector is set in the same way as the Line selector in the adjustment path, through the third and fourth pulse series.

The second group selector in the parallel path must therefore be able to turn freely when the connection to a line selector is made, and it must be able to be forcibly controlled by backward impulses from the II group selector in order to achieve the same turning step when trunk lines are connected directly.
In the present case, after the connection has been set, the various selection levels, since both lines are lines requiring amplification, as assumed, the switching means that characterize the activation of an amplifier and cause the activation of a free amplifier, bypassing the setting path. This and the parallel path are enabled after the amplifier is switched on.

Upon initiation of the connection by the calling via the incoming line VD station in known manner the incoming line VL ¹ assigned relay C ¹ is energized via: earth, battery, winding of the relay C ^1, contact 46 b ^1, 68 b ^1, c -Ader and earth in the superior office. Relay C ¹ operates its contacts. The relay in the incoming connection line is energized by the incoming current impulses and puts the current impulses via its contact 21 earth on the α-wire of the connection line VL ¹ , whereby the relay A ¹ , which is also located on the α-wire, is energized intermittently in a circuit via:. earth, battery, winding of relay a ^1, contact 3 ">, α-vein contacts 4 b ^1, 2.1, earth relay a ¹ includes at each occasion response its contact 5a ^1, whereby over Earth and contact 6w the solenoid H ^{1 of} the first group selector /. GW is excited in pulses and parallel to this, relay P ¹ via its winding III.Magnet H raises the selector's arms for the desired decade and relay P ¹ closes its contact 7p ¹ winding I and briefly opens the contact 28 lying in the circuit of the rotary magnet D ¹ p ^1. by the short-circuit its winding I relays P ¹ remains during the rush current transfer energized. Upon termination of the current pulse number is waste n opened from A ^{1 is} the circuit for the solenoid H, and relays P ^1, these fall off, so that a ¹ and 23 c ^1, the rotary magnet D ¹ of the voter via the closed at the first stroke step head contact 8k the now closed contacts 9 I. GW is switched on and its arms are in motion. At the first turn contact iod ^{1 is} closed and SW opened, and the step-by-step progression of the selector is done in a known manner by mutual cooperation between the rotary magnet D ¹ and the relay A ¹ , which work as relay breakers. During this time, relay A ¹ is activated by the open contact 3 w of the rotary magnet I? ^{1 separated} from the α-wire.

Are the arms of the voter I. GW on a by a subordinate free voter of the next electoral level, z. B. accrued a free second group selector marked contact, the relay P ¹ comes through earth, contact nc ¹ , its winding I and II, voter arm, relay C ³ , battery, earth again to respond, closes its contact 7p ¹ and thus his Winding I short, so that the occupied selector II. GW is blocked for further calls. The connecting line VD- is connected to the first group selector / via the now closed contacts 12 p ¹ and 13p ^1. QW switched on.

The first group voter /. GW setting number current impulses now simultaneously trigger the rotary selector ML in the parallel path, in that the head contact 14ε relay R, which is closed in the first stroke step, is triggered via: earth, contacts 15 ^, 14ft, winding of R, battery, earth. Relay R is connected to its contact 17? "In a holding circuit via earth, contacts 16c ¹ , 50fr ¹ , 47 ^, 17? -, winding of R, battery, earth, closes its contacts 18 / · -and 19 / *, and then the rotary magnet D ² receives power from: earth, battery, interrupter U, winding of D ² , contact 2ii, contact 18 r, selector switch arm 20, earth, and after the switch arm 20 has run into contact segment 22 via: earth, Battery, interrupter U, winding of D ² , contact 2ii, contact segment 22, selector arm 20, earth. The arms of the rotary selector ML are incrementally advanced by the interrupter U until they reach those indicated by a free second group selector JI. GW in the adjustment path corresponding Strowger switch accrued PGW marked Contact at this moment, the relay T talking about his two Wickungen I and II in a circuit via:. earth switch arm 20, contact section 22, contact I8r, winding II and I by T ₃ contact 19 r, Selector arm, relay C ?, battery, ; rde. Relay Γ closes its contact 21 1, whereby the circuit of the rotary magnet D ^{2 is} interrupted and the high-resistance winding II of T is short-circuited, so that now

Relay C * is triggered by current amplification. The voter ML is now blocked against further occupancy. At the contacts 23 * and 24 1 , both the relays B ¹ and X as such, the connecting wire 25 to the selector ML are switched through.

The selection process via the next selection level, the second group selector J /. GW, is done in the same way as above for the /. GW described, known manner. If the arms of the 2nd GW are raised by the second series of impulses to the decade in which the continue in the desired direction

t5 are connected to the lines, they are in the same way as described above for I. GW , by cooperation of the relay ^ * with the rotary magnet, not shown, via its contact 52 and contact

ao bar 53 ze / advanced until it reaches the contacts to which the line VI? connected, have accrued. Then comes the relay P ² , which, as described for L GW , had dropped out after dialing the number, again

As the one to respond to: earth, contact 51 c ^s , winding I and II of P ² , selector arm, winding I of C ^s , battery, earth and switches the connecting wires from L GW to its contacts 33 p ^% and 54 /> ² to the II. GW through.

^{The assignment relay C 5} assigned to the outgoing end of this line responds via its winding I, closes its contact 26 c ⁵ and thus occupies a selector for the selection of the subscriber or an outgoing connection line in the end office of the outgoing connection line VL *.

The number current impulses setting the II. GW to the corresponding decade are simultaneously transmitted via the wire 25 to the relay A * in the parallel group selector PGW , which actuates the lifting magnet, not shown, which the arms of the PGW on the in the same way as described for the first group selector the decade corresponding to the selected line.

This voter PGW is now not allowed to, like the //. GW, rotate freely, but it is inevitably controlled by this in order to come to the same rotation step and thus to that of the selected line VL?

appropriate facilities for selecting and connecting a free amplifier.

This inevitable control comes about because the arms of the / J. GW gradually progressing, due to the mutual cooperation of the relay A ³ with its non-simulated rotary magnets (as in the I. GW) generated current impulses are transmitted via the α wire and the connecting wire 25 to the relay A ⁴ in the parallel group selector PGW. ■

After the number dialing has been completed and the II. GW has been set to the desired decade, the contact 28mk provided for this decade is closed. As soon as the II. GW turns freely, the current surges moving the switching arms step by step are transmitted to relay A * ^{each time contact 29a 3} closes in the following way: earth, contacts 28 mk, 29a ³ , 33p ^z , selector switching arm, contacts 13p ¹ , 4b ¹ , wire 25, contact 24 ^ selector switch arm, contact 36 /, winding of A ¹ , battery, earth. These current surges are transmitted by opening and closing the contact 30 a ⁴ to the rotary magnet D ⁴ , which works alternately with A ^4. It should also be noted that even at the point surge handing the relay V via the contacts 55 c had come to respond ² and 56 w and his contacts 5 7 ν gege closed and had opened 38 ", as the delay relay to relay V holds even during the current surge ceremony at Impulse-like drop in contact 58 c Contact 5 6 w opens with the first turning step. The opening of the contact 38 t / causes the circuit for relay P ^{4 to be} interrupted and to be closed again only after the relay V has dropped after the end of the current impulses emanating from the II. GW. According to the number of transmitted current surges, the rotary magnet D ⁱ is energized on the way: earth, the head contact 32 ε (closed in the first stroke step), contacts 31p ⁴ , 30 a ⁴ , 37 c ² , winding of D ⁴ , battery, earth and When contact 30 0 ⁴ opens, the arms of the PGW de-energize and turn, which thus perform the same number of steps as the arms of the //. GW, until they have run into the contacts corresponding to the line selected by the II. GW.

Then speak. Relay P ⁴ via its windings I and II via the contacts 38 ν and 39 c ² , which are closed again after the relay V has dropped after the end of the current surges, interrupts the circuit of the rotary magnet D ⁴ at its contact 3 Ip * and closes via its contact 40 ^ ⁴ its high-resistance winding I short, whereby the line reached by the PGW is blocked against further assignment. At its contacts 41 p * and 42p ⁴ , the switching takes place to the switching means selected by the PGW , corresponding to the line selected by the II. GW and determining the connection of an amplifier, the relays S ² , A ^s and C ^s , winding IL '

This creates a circuit for the latter relays and relays X and B ¹

come over: earth, winding of C ⁵ , A ⁵ , B ² , & arm from PGW, contact 42p ⁴ , & arm of selector ML, contact 23 i, winding of X and winding I of B ¹ , battery, earth . Relay X does not respond in this circuit due to the high resistance of relays B ² , A ^s , C ⁵ . The relays B ¹ and B ² switch their contacts 34 & ¹ , 35 b ¹ , 4b ¹ and 43δ ² , 44 b ² , 45 b ² , as assumed, an amplifier device to the wires of the lines VL ¹ and FL ² , while the adjustment path separated at these contacts is thrown together. The speech path runs through the amplifier V. ■ Relay S ¹ has switched its contact 46 b ¹ when responding and thus applied relay C ⁴ to the calling line FL ¹ in place of relay C ¹ . Relay C ¹ drops out and, with drop, initiates the return of the devices in the adjustment path to the rest position.

At the same time, relay B ^{1 has} also opened its contact 50 & ¹ and opened the holding circuit for relay R on it , so that it drops out and opens the circuit for relays T and C ² at its contact 19 r , so that these also drop out and by activating their contacts initiate and cause the triggering of the voters in the parallel path, so that this too is separated. Before disconnection of the parallel path and the return of its facilities to the rest position, holding circuits for relays B ¹ , B ² , A ⁵ and C ⁵ have come about, namely for relay B ¹ by opening its contact 68 & ¹ , which short-circuits its Winding II cancels so that it is held over the latter. For B ² , A ⁵ and C ⁵ , a holding circuit was established when responding, which runs via earth, battery, contact 49 a ⁵ , windings from B ² , A ⁵ and C ⁵ to earth, and contact 62 c ^{5 was} opened .

Defines the caller after the call circuit his handset, the relay C ⁴ and B ¹ are de-energized over its winding II of the connecting line FL ¹ at the next end. Relay B ¹ disconnects the amplifier device V from the wires of the incoming connection line FL ¹ by switching over its contacts 4 & ¹ , 34 & ¹ and 35 b ¹ after it has dropped out. At the same time, when the contacts 59c ⁴ and 60 b ¹ close, a circuit for the winding III of the relay C ⁵ on the pulse wire 61 is closed, which is switched in the opposite direction to its winding II, so that relay C ⁵ ■ is de-energized. Relay C ^s closes its contact 62c ⁵ , whereby relay A ^{5 is} short-circuited and its contact 49 α ⁵ opens. As a result, the circuit for the relays B ² , A ⁵ and C ^s winding II is opened. Relay B- disconnects the amplifier device V from the outgoing end of the connecting line FL ² when it drops.

At the same time, when the relay C ⁵ drops by opening its contact 26 c ^5, the downstream connection devices are triggered.

Claims (8)

Patent claims: i. Circuit arrangement for telephone systems with voter operation, in which voters lying in a path running parallel to the setting path are set synchronously by current surges, characterized in that after setting the voter (J. GW ₃ II. GW) in the setting path by current surges sent by a calling point Dependency on the free choice of one of these selectors (II. GW) current impulses for the compulsory (synchronous) setting of a selector (PGW) in parallel to contacts with the same number to trigger special switching processes (e.g. for the purpose of switching on ¹ special equipment such as amplifiers, current impulse transmitters ο . Like., in the connection path) are sent. 2. Circuit arrangement according to claim ι for voters with several line groups, characterized in that the setting of the voters (J. GW, II. GW) takes place on certain line groups by the current surges sent by the calling point, while one of these voters (II. GW) automatically on a certain line of the group and the other voters (PGW) by power surges sent by this voter forcibly on the same numbered. Lines of the group can be set. 3. Circuit arrangement according to claim 2, characterized in that the circuit for the current impulses emitted depending on the free choice of a selector (II. GW) is closed only when this selector (II. GW) is set to certain line groups. 4. Circuit arrangement according to claim 3 for systems with rotary dials, characterized in that the surge circuit runs via contacts which are only actuated when the selector (II. GW) is set to certain decades (28 mk). 5. A circuit arrangement according to claim 3, characterized in that the other selector (PGW) controlled by the other selector (PGW) switching means (V, P) , which is controlled by current surges of one of the selector (II. GW) .. when adjusted to certain line groups. are ordered, which determine whether the voters (PGW) are set in free or compulsorily controlled voting on a line of the desired group. 6. Circuit arrangement according to claim 5, characterized in that the selectors (PGW) is assigned a time switch device (V) which, after receiving the current surges emitted by the calling point, upon the arrival of further current surges within a certain time, the drive devices (L> ⁴ ) below sets the influence of these current surges. 7. Circuit arrangement according to claim 6, characterized in that the time switching device (V) prevents the switching off of the surge receiving relay (A ^ when further current surges arrive within a certain time. 8. Circuit arrangement according to claim 5, characterized in that the time switching device (V) causes a switch to initiate the free choice of the selector (PGW) if no further current surges arrive within a certain time after receiving the current surges emitted by the calling station. For this purpose ι sheet of drawings