DE1120513B - Circuit arrangement for correctors in telephone exchanges - Google Patents

Description

GERMAN

PATENT OFFICE

T18581 VHIa / 21a ³

REGISTRATION DATE: JUNE 27, 1960

NOTICE THE REGISTRATION ANDOUTPUTE EDITORIAL: DECEMBER 28, 1961

The invention relates to a corrector, in particular for telephone switching systems.

The purpose of the corrector is to monitor the further work of a switching device as a function of a to determine the selected key figure, this determination from the first selected digit or from two or three etc. dialed digits may depend. The main circuits of the corrector are for Analysis of the key figure determined. If the number of digits in the code is greater than 2, the Corrector to a complicated facility.

In the previously known solutions, selector or relay circuits are used in the following design:

1. Step or motor selector in the circuit shown in Fig. 1, in which the mutual Connection of the voter contact field of the first stage with the voter contact field of the second Stage characterizes the revaluation of the key figure.

The mode of operation of this known circuit can be briefly described as follows:

In Fig. 1, the letters a, b, c designate switching arms of three registration selectors, which register the selected code, which may have three digits. After registering the code, each registration selector is set to a certain starting point that characterizes a certain number, with z. B. Schaltann α characterizes the first digit, arm b the second digit and arm c the third digit of the code.

After setting the registration selector, a viewfinder is set in motion whose switching arms ρ 1, ρ 2 and ρ 3 move simultaneously. The viewfinder rotates until a circuit is closed in which a control relay K responds via the switching arms of the registration selector and all switching arms of the viewfinder.

The dependency of the contact on which the viewfinder should stop on the registered code is determined by the mutual connection of the output contacts of the switching arms a, b, c and the output contacts of the switching arms p \, ρ2, p3 . After the viewfinder is brought to a standstill, its position determines (for example by means of a further switching arm not shown in FIG. 1) in which way the selected code number is to be processed.

Fig. 1 shows the connection of the output contacts of voters to determine the following numbers: 235, 23Z, 2XX, 34Z and 3ZZ, where Z is a be circuit arrangement
for correctors in telephone exchanges

Applicant:
TESLA, närodni podnik, Prague-Hloubetin

Representative:

Dipl.-Ing. H. Seiler, Berlin-Grunewald, Lynarstr. 1,
and Dipl.-Ing. H. Stehmann, Nuremberg 2,

Patent attorneys

Claimed priority:
Czechoslovakia from June 30, 1959 (No. PV 3873)

Hilbert Rott, Prague,
has been named as the inventor

Significant number means. The first step of the finder becomes number 235, the second step Number 23Z etc. assigned.

The known circuit arrangement shown in Fig. 1 has the disadvantage that the duration of the return the voter is relatively long. This time is with the number of metrics in one Telephone network extended because to determine the information in stages, all individual steps of the Searchers must be searched, each of which corresponds to a key figure.

Therefore, this circuit arrangement is not suitable to be used in a central converter that only is switched on to the register for the duration of the revaluation.

When classifying key figures for the individual steps of the searcher, one must adhere to a certain order: First, key figure a, b, c; the following step then code number a, b, x; further key figure a, x, x. If z. B. the codes a, b, χ and α, χ, χ are connected and if it is necessary to add a code a, b, c

109 757/136

close, all steps of the viewfinder must be reversed

be switched, which is a further disadvantage of this connection with the operation of the illustrated

Arrangement entails. th circuit described in detail.

2. When the rotary dials shown in Fig. 1 are first used, the operation of that shown in Fig. 3 is shown If relay selectors are replaced, only 5 circuits are described.

a faster turnaround of voters achieved. From the moment the corrector is occupied

3. The relay circuit shown in Fig. 2 has the control relay F is energized. Before the corrector a higher working speed than that in action, he receives the selected one Fig. 1 shown circuit. Key figure, and after the individual key figures

The mode of operation of this circuit is as follows: io he the switching arms dx (first code number), dy (second A contact network of unmarked relay code number) and dz (third code number). In one closes, depending on the practical implementation received, the code number in the drawing becomes a circuit in which a selector shown by a relay contact network responds to the assessment relay (in the drawing there are only sets. After setting the switching arms dx, dy determining relays X and Y shown). As a result, 15 and dz begin the actual, a control determines in which way the received switch-regulated work of the corrector.
Key figure is to be processed. The dependence

the response of a specific relay from the determination of a full number of code numbers is selected by connecting the digits, analyzing the number »235«
Starting points of the contact network with the winding 20

of the individual relays. The disadvantage. It is assumed that all three digits, e.g. B.

This circuit consists in the circuit "2", "3" and "5" being transmitted to the corrector,

It becomes complicated if the code number is three or more with the corrector following activated code

Has places. For three-digit codes you can choose 1000 payouts: 235, 23X, 2XX, 34Z and

Output contacts to the relays required, etc. 25 3XX, where X denotes any number.

The purpose of the invention is to overcome these drawbacks. The circuit works in the following way:

avoid. This is done by a circuit arrangement. The control switch, whose switch arms are marked with Al

achieved, in which the first winding of the Aus and h 2 are designated, is increased by one step

value relay connected directly to a contact. This makes all relays respond

which is taken from the first digit of the code 30 sent to contact no. 2 of the for the first

speaks, and the holding circuits of each evaluation code number of certain registration dialers are connected.

relays only with the contacts that are wider. The following circuit is closed: correspond to the other digits of the code and with a

Connection point are connected, which is for those 1st +, switching arm hl of the control switch (position

Evaluation relay is common, the information 35 ment 2),

on the basis of the same number of digits of an identification switch arm dx of the selector (position 2),

determine number, whereby the circuits of the evaluation / _R,. . \

relay via drag contacts on the arms of the / ρ 1 _R \ _

Control switch are closed. \ £ ^e i ^a i ^s ~ / ''

The circuit arrangement according to the invention has 40 \ -Keiais c /

the following advantages: In this circuit, the evaluation

a) It operates with a high speed, to _re i _{s a} i A, B and C. In the following step, whereby the working time depends on the number of all the control switches, circuit 1 is not dependent on possible codes, because broke, while the following circuit is closed at the same time only a single order of digits of 45:

all key figures is searched. This circuit can therefore in a Central ² * +> shifting hl (position 3), shifting dy used volume corrector, which, for his work ^of selector (position 3)
is only available for a short time. / Contact a - Relay A _

b) A further revaluation can be carried out without switching 50. Contact b - relay B '
the existing revaluations

Because it is not necessary when connecting key numbers, the evaluation relays A and B remain in the corrector. In the time of the movement of the switching specific order according to the number of 55 contact no. 3 required for armes hl between contact no. 2 and the determination of a piece of information, they also remained excited because these digits had to be taken into account. due to the design of the switch arm

c) Is secured by increasing the number of digits.

The device does not match the code. The evaluation relay C remains picked up via the

plicated. Circuit:

One embodiment of the invention is shown in FIG

3 to 5 in connection with the analysis of a 3rd +, switching arm h2 (position 3), RX, c, C, -.

three-digit code. Purpose of the analysis

is the determination of whether the received number of In this circuit the auxiliary relay is used to RX

Digits of the code are sufficient to determine whether the response has been brought about. Arranged by the tightening of the auxiliary Selected code in the remote network or not 65 relays RX of the circuit is broken, in which is arranged, and which standing of all available check relay F from the moment of allocation operations of the switching device overall the corrector is held. As a result, this may correspond to the selected key figure. Relay F off.

A contact of the auxiliary relay RX closes the following circuit:

4. +, rz, ry, rx, RX, c, C, -.

Relays RX and C are held in this circuit so that they do not drop out when circuit 3 is interrupted.

In the next step, circuit 3 is interrupted and the following circuit is closed: ίο

5. +, switch arm Al (position 4), switch arm dz (position 5), a, A, -.

In this circuit, relay A holds while relay B is held in the following circuit: ¹ S

6. +, switch arm h 2 (position 4), RY, my, b, B, -.

After the interruption of the circuit 4, the relays C and RX are brought to waste by the contact of the auxiliary * ° relay ry , which has responded in circuit 6.

The circuit 7 is closed.

7. +, rz, ry, RY, my, b, B, ~. _{a £} .

In this circuit, the relays B and RY hold if the circuit 6 is interrupted in the subsequent step of the control switch. In this step, the circuit 5 is also interrupted and the circuit 8 is closed.

8. +, switch arm h 2 (position 5), RZ, mz, a,

Relay A is held in this circuit, while relay RY drops out in that circuit 7 is interrupted with the aid of contact rz of the auxiliary relay which has responded in circuit 8.

The following circuit is closed:

9. +, rz, RZ, mz, a, A, -.

In this circuit, the relays A and RZ are also held in the following step, in which the earth is applied via circuit 10 at point ur:

10. +, switch arm h 2 (position 6), /, n, point ur.

The result of the analysis of the number 235 is that the relays A and RZ are energized and applied in the point ur earth. The creation of the earth in point ur indicates that it is a question of a code number arranged in the long-distance network, and this determines the further work of the switching devices (the register, the marker, etc.).

55

Analysis of the number 23Z

If the number 23.3Γ is registered, the Switching as follows:

In the first step, the circuit 1 is closed, in which the evaluation relays A, B and C are made to respond. In the second step, circuit 1 is interrupted and circuit 2 is closed, in which relays A and B remain energized. The relay C stops in circuit 3, in which the auxiliary relay RX also responds. The control relay F drops out. The circuit 4 is closed. In the next step, circuits 2 and 3 are interrupted. As a result of the interruption of the circuit 2, the relay A drops out, while the relay B holds in the circuit 6, in which the auxiliary relay RY responds. This interrupts circuit 4 and relays C and RX drop out. When the relay RY responds , the circuit 7 is created. In two further steps, the relays B and RY are held via the circuit 7, and in the last step (position 6) the circuit 10 is switched through.

The number 23.ST is therefore determined by the pulling in of the relays B and RY and by the application of the earth at point ur .

Analysis of the number 2XX

Likewise, it can be seen that at the number 2XX the relays C and RX remain energized and the circuit 10 is switched through.

Determination according to a smaller number of indicators

It may be necessary to start the corrector as soon as the first or second code has been received or the two first code digits are connected to the same by the register and the Analysis performs whether the information received by the register to determine the revaluation enough or not.

The relays MY and MZ, not shown in the drawing, and the signal relay N are activated. If only two code numbers have been registered, the relay MZ responds when the corrector is assigned. However, if only one code has been registered, the relays MZ and MY respond .

Analysis of the number 23

It is assumed that the number 23 is registered. The relay MZ is energized and the control relay F responds when the corrector is occupied and remains energized. With the first step of the control switch, relays A, B and C are made to respond. In the second step, the same relays hold and the relay RX responds. This causes the control relay F to drop out. The circuit 4 is closed.

In the third step, the circuits 11 and 12 created:

11. +, switch arm M (position 4), mz, switch arm dy, (position 3), \\ _ _Β ) ₁ -,

12. +, switch arm Λ 2 (position 4), N, mz, a,

In the last circuit, the signal relay N responds and holds in a circuit not shown in the drawing until the corrector is free.

Fener the circuit 6 is closed, in which the auxiliary relay RY responds. The relays RX and C drop out and the circuit 7 is closed. Relays A and B hold in circuits 11 and 12.

In the next step, the circuit 11 interrupted while circuit 7

7 8

remains switched. The last step becomes the earth. The next step becomes the following

applied at point ni : circuit closed:

13. -f-, switch arm h 2 (position 6), /, n, point ni. 21. +, switch arm ή 1 (position 4), mz, switch

., j jn arm dy (position 4), d, D, -.

The creation of the earth at point ni means that 5

the received number is not sufficient to determine, in this circuit the relay D.

whether the code is placed in the long-distance network or not. In addition, the circuit 22 is closed:

is arranged. 22. +, switch arm ή 2 (position 4), RY, my, d,

D, -. Analysis of the number 2 ¹⁰

The relay RY responds, and this becomes the

If only the number 2 is registered, the circuits 20 are interrupted, so that the relay RX

Relays MY and MZ energized. At the first step and E fall off. The following circuit is made

the relays A, B and C (circuit 1) respond. create:

In the second step, the following circuit 15 00, τ, γ _v ^ _n _ is closed:

, ",,," ". ο,, There is no change in the following step

14. -S shifting hl (position 3), my, _a switching _

/ a \ In the last step, the earth is at point ur

arm dx (position 2), (ß \ -. ^{20 applied via} circuit 10.

* \ C / ^s ^ ^{st dane} r clear that the information, if appropriate, is sufficient for determining the re-evaluation. Relays A, B and C remain in this circuit

excited. Then the circuit 3 is closed, in Unordered code

to which the auxiliary relay RX responds. The control 25

Relay F drops out and circuit 4 is closed. If in the course of work of the corrector the

On the step below, the following auxiliary relays RX, RY, RZ or the signal relay N will not

Circuits created: are made to respond, the relay F drops

15. -r shifting hl (position 4), my mz, switching ™ ** ^{ab 'w} f ^{ood bed} £> ^{that the} code received _t

'ν & / 9 j> 30 is not arranged in the long-distance network. This is going through

/ - <4 \ the creation of the earth with the help of the contact f im

axmdx (position 2), ( B ι, -, and point nk signals after the Schaltann h 1 on

\ C / opens contact 6.

16. -S Schaltarm hl (position 4), ^Fi § · ^{4 z & i} & ^a modified embodiment of the

_l η 35 invention.

N ^ _ _. ', -. Again it is assumed that the number 235

^{mz a is} registered. From the beginning of the occupancy

The signal relay N responds, the relays A, B and C are further on, the control relay F and the relay M are held. The signal relay N keeps in an energized.

Circuit not shown in the drawing up to 40. The first step is the following circuit The corrector becomes free. Closed at the following:

In step 15, the circuits 15 and 16 are shown under- _c , _u ,,.

broke. This causes relays Λ and B to drop out. The ^L + 'switch arm Al (position 2), switch arm dx

Relays C and RX are held on circuit 4. / ΑΧ

In the last step, the earth is at point ni 45 (position 2), (B ), -.

applied (circuit 1). \ c /

Analysis of the number 34 Relays A, B and C respond. This will

created the following circuit:

If the number 34 is registered, the 50 ₃ _ ₊ switch arm M (position 3), switch arm dy relay MZ responds. At the first step the following / α — Α ^λ

Circuit closed: (position 3), / _b ^ _/ , -.

17.- ^, switch Λ1 (position 2), switch d * (position

D. ^x

In this circuit, relays A and B.

ment 3),, -. 55 Furthermore, the following circuit is closed:

_. ",.", _, 4. +, Schaltann hl (position 3), ry, RX, c,

The relays D and E respond. q _

In the next step, circuits 18 and 19 are created. In this circuit, relay C stops and speaks

_Λ ο, c _U1 , - ,, c. "-, ν c ι. ι *, 60 the auxiliary relay RX . Through the suit from

18. -f, switch arm Al ^ position 3), switch arm dy _{Rdais RX , the Rdais} ρ _{mm wasteQ is respected;}

(Position 4), a, D,. _UQC j ^ ₆₁ f _o ig _enc j _e circuit is closed:

19. +, switch arm h 2 (position 3), RX, e, E, -. 5. +, _rz>ry>rx> RX _{t Cj} c, -.

Relays D and E 65 remain in these circuits. Circuit 2 is changed as follows: energized. The relay F drops out and closes the circuit: 2a + / ry-b ^x _o _

20. +, rz, ry, rx, RX, e, E, -. '' \ rz-a / '*''

In the next step, the following circuits are created:

6. +, switch arm Al (position 4), switch arm ife (position 5), a, A, -.

Relay A is held in this circuit.

7. +, switch arm A2 (position 4), rz, RY, b, B, -.

When the auxiliary relay RY picks up, the relays RX and C drop out. The following circuit is created:

8. +, rz, ry, RY, b, B, -.

Circuit 2 a has changed as follows:

2 B. +, rz, a, Q, -,

so that the monitoring relay Q is held. The following step creates the following circuit:

9. +, switch arm A2 (position 5), RZ, a, A, -.

Relay A holds in this circuit. The following circuit is closed:

10. +, rz, RZ, a, A, -.

When the auxiliary relay RZ picks up, circuit 8 is interrupted. As a result, the relays RY and B drop out. Furthermore, the circuit 2b is interrupted. This causes the monitoring relay Q to drop out. The following circuit is closed:

11. +, switch arm A4 (position 5), P, -.

As a result, the relay P responds and the relay M drops out.
The following circuit is closed:

12. +, m, q, f, point «r.

This places the earth at this contact.

The result of the determination is therefore the pick-up of the relays A, RZ and the application of the earth at point ur.

If the number 23 is registered, the process is as follows:

Initially, relays F and M are energized. In the first step, circuit 1 is closed in which relays A, B and C respond. As a result, the circuit 2 is closed, so that the relay Q is made to respond. In the second step, circuit 3 is created in which relays A and B are held. Furthermore, the circuit 4 is created in which the relay C stops. The relay RX responds. As a result, the relay F drops out and the circuit 5 is closed. The circuit 2 is changed into the circuit 2 a, so that the relay Q holds.

In the next step, the circuits 3 and 4 are interrupted, so that the relays A, C and RX drop out. The relay B does not drop out because the circuit 7 is closed. The circuit 8 is created. The circuit 2 a is interrupted, so that the relay Q drops out. In the next step, the relay P in circuit 11 responds. When relay β drops out, relay M also drops out and circuit 12 is closed. As a result, the earth is laid out in point ur.

It may be necessary that the corrector is connected to a register before the whole Code is registered in the register.

If only two code numbers are registered, the relay MZ, not shown in the drawing, responds. If only one code is registered ίο, the relays MZ and MY are energized.

It is assumed that the number 23 is registered. The relay MZ and also the relays F and M are energized from the beginning of the assignment of the corrector.

In the first step, circuit 1 is closed in which relays A, B and C respond. This creates the circuit 2 so that the relay Q responds. In the second step, the circuit 3, in which the relays A and B are held, and the circuit 4, in which the relay C holds and the relay RX responds, closed. When the relay RX pulls in , the relay F drops out and closes the circuit 5. The circuit 2 is changed to the circuit 2a, so that the relay Q is held. Furthermore, the following circuit is closed:

13. +, switch arm A4 (position 3), mz, P, -.

In this circuit, the relay P is made to respond. As a result, the selector stops (circuits not shown) and the relay M drops out. This creates the earth at point ni in the following circuit:

14. +, m, q, point «/.

After the relevant information has been transmitted to the register, the corrector is brought to the rest position (circuits not shown). If only number 2 is registered, relays MZ and MY are energized. In the first step, relays A, B and C are made to respond in circuit 1. This closes the circuit 2, so that the relay Q responds. Furthermore, the following circuit is created:

15. +, switch arm A4 (position 2), my, P, -.

As a result, relay F responds and closes the following circuit:

16. +, p, switch arm A3 (position 2), ry, RX, c,

When relay RX responds , relay F is made to drop out. The circuit 5 is closed. The circuit 2 has changed to the circuit 2 a. As a result of the response of the relay P, the selector stops and the relay M drops out. As a result, earth is applied at point ni in circuit 14, and the corrector can be brought to the rest position after it has transmitted the relevant information to the register.

If the number 34 is registered, the relay MZ is energized. After the corrector has been assigned, relays F and M are energized. The first step is to complete the following circuit:

17. +, switch arm Al (position 2), switch arm dx (position 3), ^, -.

109 757/136

Relays D and E respond in this circuit. This closes the following circuit:

rx-e

10

20th

so that the relay Q responds.

In the second step, the following circuit is closed:

19. +, switch arm Al (position 3), switch arm dy (position 4), d, D, -.

Relay D stops in the last circuit. The following circuit is also created:

20. +, switch arm A 2 (position 3), ry, RX, e, E, -,

in which the relay £ holds and the relay RX is made to respond. Furthermore, the following circuit is closed:

21. +, switch arm A4 (position 3), mz, P, -,

in which the relay P responds. As a result, the voter stops (circuits not shown) and the following circuit is closed:

22. +, switch arm A3 (position 3), rz, RY, d,

u, -.

In this circuit, the relay D is held and the relay RY is made to respond. The following circuit is closed:

23. +, rz, ry, RY, d, D, -.

When the relay RY responds , the circuit 20 is interrupted, and the relays RX and E drop out. When relay RY responds and relay E has dropped out, circuit 18 is interrupted. As a result, the relays Q and M drop out.

Because the relays M, F and Q are not energized, the earth is applied at point ur . This means that the information 34 is sufficient for revaluation.

If, in the course of the corrector's operation, the monitoring relay Q drops out due to the dropping out of all relays A, B, C, D and E without the auxiliary relay RX, RY or RZ responding, the control relay F remains energized and the relay M drops out . As a result, the earth is applied at point nk through contacts m, q and /. This signals that the selected code is not located in the long-distance network.

Fig. 5 shows how you can get by with the relays A, B, C ... only with a single winding instead of four windings.

This embodiment can be used for the two circuits shown in FIGS.

As can be seen from Fig. 5, three windings and two contacts can each relay through three rectifiers be replaced.

The listed circuits according to the invention can not only be used for automatic telephony, but can also be used in all cases involving the processing of any is information that can be expressed by digits.

Claims (7)

PATENT CLAIMS: 1. Circuit arrangement for correctors in telephone exchanges to determine information received from a 65 code number are dependent, with evaluation relays that can determine information based on less than all digits of a code number, each of which corresponds to a single contact of a registration circuit connected to an output of a control switch, with an evaluation relay for each evaluated Code number, characterized in that the first winding of the evaluation relay (A, B, C, D, E) is directly connected to a contact (dx 1-10) which corresponds to the first digit of the code number, and the holding circuits of each evaluation relay (A , B, C, D, E) only with the contacts (dy 1-10, itel-10) that correspond to the other digits of the code and are connected to a connection point (χ, y, ζ) that is used for those evaluation relays is common, which determine information on the basis of the same number of digits of a code, the circuits of the evaluation relays (A, B, C, D, E) via drag contacts on the arms (Al, A2) of the control panel ters are closed. 2. Circuit arrangement according to claim 1, characterized in that at each connection point (χ, y, ζ), which is common for several evaluation relays (A, B, C, D, E) , which determine information based on the same number of digits of a code number , an independent auxiliary relay (RX, RY, RZ) is connected, the circuit of which leads via an output of another row of contacts (hl) of the control switch, and that in the holding circuit of the auxiliary relay (RX, RY, RZ), which is connected to the holding windings of the evaluation relay ( A, B, C, D, E) , which determine information based on a lower number of digits of a code number, contacts (rx, ry, rz) of the auxiliary relays (RX, RY, RZ) are arranged in the Circuits of the holding windings of the evaluation relays (A, B, C, D, E) are used, which determine information on the basis of a larger number of digits of a code number. 3. Circuit arrangement according to claim 1 and 2, characterized in that isolating contacts (rx, ry, rz) of all auxiliary relays (RX, RY, RZ) are arranged in the circuit of a control relay (F) . 4. Circuit arrangement according to claim 1 to 3, characterized in that the holding circuits of the evaluation relays (A, B, C, D, E) which are connected to the connection points (χ, y, ζ) which are used for those evaluation relays (A, B, C, D, E) are common, which determine information on the basis of the same number of code digits exceeding one, can be connected to a signal relay (N) which signals that the number of digits registered in the corrector is insufficient for conversion. 5. Circuit arrangement according to claim 1 to 3, characterized in that a monitoring relay (Q), which signals that the number of digits registered in the corrector is sufficient for the conversion, is connected to two parallel circuits in which a contact (rx, ry, rz) each of the auxiliary relays (RX, RY, RZ) is connected in series with contacts (a, b, c, d, e) of the evaluation relays (A, B, C, D, E) , whose holding circuits are connected to the winding of this auxiliary relay are connected. 6. Circuit arrangement according to claim 1 to 5, characterized in that the holding circuit of the evaluation relay (A, B, C, D, E) contains a holding winding connected via a contact (a, b, c, d, e) of this relay. 7. Circuit arrangement according to claim 1 to 5, characterized in that the holding circuit of the evaluation relay (A, B, C, D, E) contains a rectifier that connects in series with the contact (a, b, c, d, e) and the response winding of the evaluation relay (A, B, C, D, E) is switched. Considered publications:
German patent specification No. 960 014. For this purpose 2 sheets of drawings