DE2328116B2 - Circuit arrangement for switching points in telephone systems to which devices serving to receive commands or exchange information with a control device are assigned - Google Patents

Description

Incentive signal c ( Tal. Tal) can be influenced differently in its magnetization state. so that, depending on the setting via the effectively controlled switching point, pulses of a certain polarity that are used to block a separate winding (wBl) in the Steiiereehenftel (B) are bfocftieifftaf (Fig. 5, Ft _& 8, Fig. 9) .

30. Circuit arrangement according to claim 29, characterized in that the control of the transfluxor takes place via the input windings of a magnetic core (ZK) controlled by the stimulus signals (TA ), so that the starting process is independent of the duration of the stimulus digital (Fig. 5, Fig. 8th).

31. Sehaltongsanwdnung "ach claims 29 to 30, characterized in that the control leg (E) used for setting receives a continuous excitation (TAt) (Fig. S).

32.SchaItungsanordnöngrtacnden claims 29 to 30, characterized in that the call signals when this state changes are issued to a line monitored by the associated device .

33. Circuit arrangement according to the claims 1H to 32, characterized in that JiUr feeds the clock signals for the information transmitter and separate control transmitters for the sending unit that emits the request signals will be used «.

34. Circuit arrangement according to Claim t to 33, characterized in that ¹ dltf clock signals constitute a bipolar pulse fact and that this clock pulse corresponding to an input line of at least two lines of the line system linking logic element supplied clock signals.

ao A telephone switching system can be divided into several levels with regard to tasks and structure, for example the periphery, sub-central facilities and central facilities. to These central institutions include, for example

* S wise the work area control units, which serve a type of activity field tailored to the traffic performance of the work area control unit. Between the peripheral Devices or functional parts of a work area, as they are, for. B. Relay sets and coupling group control lines

etc. represent. t> nd the central control device Information and commands are transmitted in the form of the work area control unit. Such information can for example be a statement about the in the decentralized facilities of the field of work

switched and monitored by a related monitoring unit for certain values Represent currents. There are also devices in the periphery that. such as B. touch dial receiver, several Bits have to provide comprehensive information.

For the delivery of such information is then of the corresponding functional part on the basis of a a request signal, which may contain additional information, trigger. Via a corresponding line system

the identifier then determines in the control device the address of the requesting functional part. Via a command line system, on the basis of the request or also independently of it, to Implementation of the required functional level Be lack of peripheral functional parts or furnishings discontinued. For the effective transfer of command The connection will be affected by the failure or the functional part by means of an assigned switching point via which commands can be received

is produced. The individual switching points are effectively controlled via a corresponding address line system. Above the switching point can from a variety of decentralized facilities, e.g. B. passive relay sets, through the control one

6e only facility to be marked. With the corresponding command via ekle command multiple line can then over the switching point the actuation of Switching elements of the marked! Set up. By means of the shadows are therefore via address and command individual devices or functional parts of the same controlled in the periphery.

It is the object of the invention to provide a circuit arrangement for a shift file that is

nem simple structure the most diverse requirements with regard to their interaction with assigned facilities safely met.

In the case of switching points in telephone systems, which are assigned devices to be actuated depending on control commands and / or for the transfer of information or the exchange of information with a central control device, and the individual switchgear devices from the control device each have a number of devices Address coordinates corresponding line system can be influenced, this is achieved in that each switching position is constructed from a bistable switching element. in which an output that does not carry a signal in the initial state is activated when a control signal is applied to one of two inputs of the bistable switching element as a function of a signal supplied to the other triggering input, and when the signal is switched off at the first input, a reset is made to the initial position, that of the addresses assigned to the switching stations each group of lines of the line system summarizing the same value, the line corresponding to the lowest group is connected to the first input and the lines corresponding to the other groups are connected to the triggering input of the bistable switching element via a logic element and that . If the assigned device does not contain elements to be operated exclusively by command, the output of the logic element is simultaneously connected to the one input of a logic circuit which is coupled to the output line system to transmit a request signal and whose other input is supplied with a signal triggered by the device .

According to the invention, the switching element is activated when there is a coincidence of at least three signal voltages supplied in corresponding coordinates and can be switched off via one of the same coordinate lines. In the event that the device assigned to the Schaltstclle should automatically transmit certain information containing signals to a central device, a central controller can determine the assigned address with the aid of the common link element for several simultaneously requesting devices one after the other. If a numerical search program is carried out by the control in one of the two linked control coordinates, the relevant coordinate can be dispensed with in the request signal. With an identification in z. B. three coordinates from the sending unit to output only read signals tn two coordinates. With bipolar control of the emitting units, the full power of a half-wave is available for each of the two coordinates.

By linking two control coordinates in the logic element can be used in a simplified manner for both the control of the switching point one and the same selection device is also used to determine the assigned device delivering certain signals be used. For the identification process, one of the two linked Coordinates a Suehprogratmri carried out. Above the output of the logic element can therefore send a request signal through one of the two linked coordinates can be influenced.

According to the invention, this exists in every switching stables

s existing bistable switching element from a four-layer equivalent. With such a simulation, the first transistor only has to supply the base current for the second transistor, which is to be regarded as a load transistor. Since the load current is drawn from the connection of the voltage equivalent corresponding to a base connection, the anode connection remains free for a condition for igniting or extinguishing. If the holding voltage is applied to one of the coordinates and is established by linking at least two

ts coordinates a corresponding ignition pulse at the second base is applied, the electronic switch, which can thus be controlled in three coordinates, is activated. It remains solely dependent on the span applied via the unlinked coordinate

ao tion in this state. By switching off this voltage centrally, it is brought into its initial state regardless of the command voltages that are applied to the respectively assigned device. The load transistor of the four-layer equivalent

»5 lies in a bridge circuit that consists of the load existing diodes and the common diodes connected to the collector or emitter of this load transistor. This makes the arrangement look like an electronic switch with two mutually decoupled outputs, one of which offers ground potential for positive and the other at the same time for negative current direction. This is A current in any direction possible independently of one another in each load is as an assigned load a bistable element, e.g. B. a latching relay is provided, this relay can be switched on or off via the same command line on which this command-controllable and a switch assigned Facility is connected.

A group of devices controllable by command can be controlled via an output line system that is connected to the endpoints of those diagonals of the rectifier bridge that pass through the main current line of the Lasi transistor of four layer equivalent formed if the command voltage is applied accordingly genes can be influenced by a single switching point.

According to the invention, a group of over Command lines; u actuating devices via

various such switching points are marked.

For this purpose, the corresponding outputs or output lines of at least two shading stiffeners are each connected via one half of the glacier bridge to the devices assigned to each row end point

Bridge half connected. By combining the outcomes of two over different ones Addresses controllable switching points can be connected to the thus created new output line system group of devices with correspond

corresponding commands either via the one or the other switching point must be marked. Oleich The marking of the individual devices is then timely, the one assigned to each switching point! Group possible.

Are the controls assigned to a safety part coordinates simultaneously with other switching points connected, so invention can be in different which peripheral devices have the same addressi

23 28 Ϊ16

Associated groups of devices to be controlled by command in the individual devices be marked without affecting the output lines a single switching point over the various perfphefen Devices must be guided. The existing address network is used for this parallel connection additionally exploited, so that more susceptible to failure Connection lines between the spatially separated individual devices can be omitted.

If one divides cr according to a group of over at least three address coordinates controllable switching points in two coordinates each the same Matz and controls each of them via different, for example the holding voltage for the switch point Nefing coordinate lines can be used from a certain group of switching points any can be activated. The number of simultaneously controllable in any combination Switching points is then equal to the number of places provided in this individually assigned third coordinate.

To expand the application possibilities of the switching point in the periphery, the switching point can be further developed on the output side in that two further switching elements, which can represent two mutually complementary transistors forming a step circuit, are activated by the switching point. This enables direct voltage potential with opposite polarity to be connected to two separate connection points or connection lines influenced by each switching element. These can then be used to control further electronic switches coupled with the command line η. Depending on the switching point, further devices assigned to them can then be influenced in different ways by these switches for the duration of a command. Since the control current for the electronic switch to be controlled is not supplied to the command line due to the control principle selected according to the invention, interference voltages of almost the value of the command voltage are permissible on the command lines. These electronic switches, e.g. represented by a transistor, can then depending on the selected transistor type or by corresponding coupling of electronic switches combined into a pair with reference to them in each case according to devices for positive or negative current directions earth potential or negative or positive voltage Tobe offered. The switches offered for one of the Siroinrkntnngeii ErdpWenfM can be controlled via a command line in such a way that either both activated simultaneously or alternately in the rotantai matching and ground potential offering switches are controlled in such a way that each voltage and earth potential are available at the same time.

So it can be done in this way

electronic switches coupled g

aaf grand «billing anBegende? itefehlsspan mmgea are marked, t & er the elefetrorrischen cae so the Aasginge eiser single Sdwteteik depending on the number of the selected pairs of switches to different groups of by command; controllable devices switched. This saves addresses and connection points. Such a switch could also be via

s the contacts of a relay connected to the outputs of a switching point, which is controlled via a corresponding command line «are made. In such Pail but could dm zelnert a * groups of devices to be controlled Ie

ίο can only be offered via the decoupled outputs of the shaft * point earth potential for positive or negative direction.

According to the invention, the common to link two coordinates for the switching point and

iS for the transmission unit of a device assigned to it existing logic circuit by a Magnetic core can be realized. This magnetic core receives one of the lines to be linked, which corresponds, for example, to a hundred line,

Ο Clock signals, and the other can be used to apply a DC voltage that influences the transmission properties of the magnetic core. Through the Coupling of the ignition pulse for the in the form of a simulated four, chiciters constructed switch point

»5 With the help of the magnetic core, which acts as a switchable current transformer, lines susceptible to interference are avoided on the ignition path of the four-shift system. Thus, according to the invention, the magnetic core can be used to set the clock for the in an associated device existing transmitter unit can be switched in two coordinates. Determining the address of the one Scndccinheit Ii ann in the request signal emitting a search program by step-by-step connection of the DC voltage to the connection provided for this

steuerkoordinatc or step-by-step shutdown of the hundred cycle

Are facilities assigned to a switchboard, which, in addition to sending out a request signal, are supposed to provide additional information, such as this

z. B. applies to the tactile receivers present in the work area of a work field control unit for passive relay sets, these are according to the invention Enformationsscndcr directly through the output signal of the switching point or in coincidence with one corresponding control signal released by a control device. In order to transmit the information signals of the device in question, the information transmitters contained in it are sent to the already for the Transmission of existing request signals

Reading lines effectively switched on. After submitting a stimulated by the institution concerned

Control, the request signal transmitting unit emitting Dardi they are surrounded tfogsgi output stage m connection raft a rar all Shah Standing common blocking signal bfcfckiert through specific control of the äK®e ordncten Sehaltstelk wit the aid of the. The distinction between Aäfowte-δο rungssignalcn and the signals emitted by the lnformatioresentiera can be made by the outside of the transmission line coupled with the Infoimatkwssender »of the existing reading line system, if necessary in connection with« jfes choice of the for tue effective βΛμ. The most important information sender rnaßgebendsn Zeitopouktess, etfolgem Werd ^ i z. B, the! Afc »* (nattonstesesngnaie by a ^ i from the tax *» ^ disbursed Öefchl fiadh Btocfefefaffit derbette »ettiiei |

Senrteeinheif switched on, so it is guaranteed that never addresses and information read signals can be present at the same time. Another possibility of sub-divorce is, for example, that only on those hundred read lines of the in two coordinates built reading line system liiformatiorissignale that do not belong to the address of the receiving facility that is currently being served. Should also the single reading lines of the reading line system are used for information transfer, this can be done by a corresponding Assignment of the outputs for the request signal to be sent to determine the address " and the information outputs to the reading lines take place by z. B. with restriction of the address volume, only the part of the single reading lines not used for information transmission is used to transmit request signals.

Provided that the one for the control of the Ijhaltstelle to link two control coordinates Existing tax contributors not only set the pace for those in an assigned facility existing transmission unit for sending request signals, but also the clock for which supplies the information sender, 'can therefore be made by a depending on the address Assignment of the information outputs to the reading lines a distinction between requesting signals to be evaluated for address determination and the additional information signals are made possible.

If the clock for the information transmitter is common to all information transmitters of a device assigned additional transmitter supplied, so can without changing the access system of the Switching point existing lines all reading lines are used for information transfer, at the same time these read signals clearly as information signals can be recognized.

According to the invention, a switching point has such a control transmitter on the output side coupled that its transmission properties can be influenced in the desired manner. The relevant transmitter can be acted upon on the primary side with that clock which, for example on the line of the control network comprising a group of hundreds is or is on a special cycle common to all control transmitters of information transmitters can be switched on.

According to the requirements, the joint release or blocking of the information sender of a for the withdrawal of additional information provided device by inserting or externalizing the Clock transmission through this control transmitter. The control transmitter can do this immediately with the activation of the output of the switching point in the clock signals that enable transmission State can be controlled. Another possibility is to connect it to the output of the The switching point must first be released and the connection of a special cycle only at the desired moment let the controller carry out za. After the effective release of the respective tax delegate will be sent by the information broadcasters Information through appropriately set information contacts on the reading line in preparation are given.

If there are no information contacts available, the information can sigfial through influencing the magnetic cores relevant for the transmission of information are shaded accordingly Control currents are controlled.

Both in the event that the switch position U ·. has associated means as an indication of position i as door monitoring line conditions or as a means to discontinue automatically additionally extended information is structured to be v.iin-

according to a functionally with the jeceiligert Device-coupled transmission unit either in the event of a predetermined change in the state of the line or, if the additional information is to be delivered, request signals first

<S given to the relevant reading line system. These are evaluated by the control to determine the address Request signals can now according to the invention by influencing one with the reading line system coupled ferromagnetic structural

ao elements can be issued in two ways. Through this the request signal can already contain additional information. For sending out such request signals a simple magnetic core can be used. To identify two anas Requirement types, this magnetic core can be controlled with two trigger levels via an AND element. The control device receiving the request signals can reset the multivibrators via a magnetic core with opposite pulses, so that the identification device can see which tilt level was set. This allows one of the two types of requirements associated additional information can be determined.

If, according to the invention, a transfluxor is used as a transmission unit for the delivery of such request signals, the shielded functional sequences can be carried out with the aid of this single component. In such a case, the desired type of request depends on the magnetization properties of the individual controls of the transfluxor. If the incentive signals given by the assigned device influence both the setting and the blocking gift of the transfluxor, one of the two types of request can be made in any order. With the aid of the switching point that is effectively activated after the address has been determined, it can then be blocked, depending on the setting dur ·> *, pulses Ij of correct polarity transmitted by the control device. The respective type of requirement can then be determined from the polarity of the impulse that leads to the blocking. If the MögfieftKeit, öBef Ie ftrt to transmit additional information 3EL Anfofderung not required, need to be affected by the incentive signals only de ^r blockade leg of the respective Transfluxors while the adjustment leg can be charged with a constant excitement. This influencing of the blockade limb can be done in a simple manner via a magnetic core controlled by the activating device or with the help of a capacitor which is placed by the activating device in a discharge circuit that contains the current on the blockade limb in this regard.

Further details of the invention are provided below explained in more detail on the basis of the exemplary embodiments shown in the drawings.

13th

23 28 Ή 6

In detail shows

1 shows the principle of the circuit arrangement according to the invention in Forn? a block diagram,

2 shows the structure of a stopping point and the summary their outputs with the outputs of another switching point,

F i g. 3 the expansion of the outputs of a switching point with the help of controllable via command lines electronic switches,

4 shows the switching of the outputs of a Switching parts,

5 shows the link between a switching point and the assigned to her and for the sending of additional Information intended facility as well as its structure,

Fig. 6 the coupling of the Schaltsteüe with which the Taxpayer influencing the sender of information,

7 shows the transmission of information via information contacts,

Fig. 8 and Fig. 9 embodiments of the with the Switching point-coupled transmission units for the delivery of a stimulated by the assigned device Request signal using a transfluxois,

Fig. K) a transmission unit using a simple magnetic core,

11 shows the setting of a transfluxor during delivery a request signal containing no additional information.

The block diagram according to FIG. 1 shows the functional relationship of a switching point BS with those functional units that are in the facilities ERlbzv /. ERl contain sine ¹ . ERl ur, d ERl should represent decentralized facilities that / .. B. are available in the work area of a work field control unit for relay sets. Depending on the type of device, the switching point can now work together in different ways with these devices, which are each connected to a central controller (ZST) via a command or information line system (B, R, S, LS) . By targeted control of the switching point, for example by means of its output signal AS, a single device from a multiplicity of decentralized devices, e.g. B. passive relay sets are marked. By simultaneously correspondingly applied command voltages to the command multiple lines, simultaneous or successive switching on or off of several switching elements, which are indicated in the drawing by the bistable relay BR , is made possible in the selected device.

To expand the capabilities of the connection point, its outputs can now be expanded by first activating electronic switches ES, which are connected to a command line system. These electronic switches can be operated individually or in pairs, with their outputs in the same way as the immediate one Output of the switching point, which can influence the mentioned facilities. In this way it is possible to influence several groups of devices assigned to the individual electronic switches or switch pairs via an interface. There is not only an expansion in terms of the number of outputs, but also ground and voltage clamps can be made available in various combinations for the associated devices by appropriate selection of the switching type.

A switching control can also be assigned peripheral devices which, in turn, are intended to transmit signals to the central controller via a corresponding reading line system LS. This includes facilities that are used, for example, to monitor the subscriber loop and the outgoing lines in

ίο serve relay sets and, in the event of a change in the current values to be specified on the monitored line, send signals to the reading lines coupled to this transmitting unit by means of a transmission unit SE influenced thereby. On the basis of these signals can

then the relevant device can be identified by the controller. After the address determination the control can now use the SchaltsteUe the transmission unit of the associated device in different Influence so that the

jo derungssigna! the triggering cause can be determined can.

In addition to the devices used only for monitoring tasks, which only send request signals / for address determination via certain lines of the reading line system, there are peripheral devices, e.g. button receivers, which also have to provide information with a width of several bits. Such a device, controlled as a function of the assigned switching control 5, is intended to represent the unit provided with the reference symbol ER1 in FIG. 1. Only the transmission unit SE is shown, which emits the request signal after a corresponding stimulus duich the device to the reading lines LE ', LH' coupled to the transmission unit, and that functional part Ml, which by means of the individual information transmitter / 51 to ISn information about the with them each connected lines of the reading line system JLS sends out. Both functional units are influenced by the assigned switch control S.

Each switching control can be controlled via at least three lines, each of which corresponds to a group of coordinate lines summarizing the same value. Normally, in each of the three coordinates ElI, Hl and D M-'each switch panel is assigned a specific location, ie it is only reached via a single address. For certain purposes, however, it makes sense to assign the same address to several connection points, ie they are connected to the same control lines.

Another variant can be that a switching point in a coordinate over different Lines is controlled.

If, for example, one assigns the same control lines HT and DW to a switchboard and gives them different ones of these lines from the remaining group coordinates EH , then another switchboard, which with the same assignment of these control lines to their inputs, can be used with all of these

Lines is connected, are brought when any of the switching points accessible via different lines EH is controlled. Should this additional switching control also be brought separately from those switching locations to which it is coupled

can be, you must have your own line from one of the two remaining coordinate groups, z. B. an Anstcucrleitung OW are allocated.
Of the operations shown in FIG

IU

For the switching point S , the line EH should now be a division from the group of ones, HT should be a line ijus from the group of hundreds, to which, for example, j | nTakt is applied, and the line DW should be a Deka manual to which z. B. a DC voltage is on-5ar represent. The two control lines HT iind DW are combined in the logic circuit VG , the output of which is connected to the input £ 1 which jointly triggers the two blocks of the biostable flip-flop ÖS. If there is a signal on the HT line, for example a pulse, and if the DW line is free of signals, the flip-flop is switched to the switching state opposite to the idle state when a signal is simultaneously applied to the line £ Jf, which is connected to the other input £ 1 set. If the three control coordinates coincide, a corresponding signal is generated at the output AS of the multivibrator. Since the input £ 1 is simultaneously connected to the reset input R of the flip-flop, this remains in the assumed switching position until the signal on the single line EH is switched off. After switching over the multivibrator, only one signal is required on this line. If, as already described, only switching elements of an associated device are to be influenced via the output signal at output AS, the clock on line HT can be switched off after switching over the multivibrator.

If the device assigned to a switching point S is a device that can at least send signals via a corresponding transmission unit S, the transmission of the relevant signals is simultaneously controlled via the output of the logic element VG combining the two lines HT and DW. If the device in question, for example the device ER1 already mentioned, has to send information, the transmission unit S £ is initially stimulated to output a request signal. This can be done in that the input SA of the clock-controlled flip-flop K contained in it is acted upon with a corresponding signal. In such a case, this flip-flop emits a corresponding output signal in the absence of a DC voltage on the line DW and when a signal pulse is present on the line HT, which is applied to one input of the logic circuit VS contained in the transmitter unit via the output of the logic device VG. Since this is fed to the second input of the logic circuit VS , the coincidence condition is met, so that signals are emitted on the hundreds and units reading lines LH ' and LE' coupled to it. The request signal is thus delivered in two coordinates, for example. With the aid of the link VG , however, the address of the associated transmission unit S £ can be determined in three coordinates. Since the transfer of read signals is dependent on whether at the one input of the logic element VG is applied a signal voltage from the line DW, a Suchtirogramm can be carried out in this coordinate associated for identification. With successive switching on of a signal voltage, e.g. B. a direct voltage, the supply of the clock signals via the logic element VG is prevented when such a voltage is applied to the line DW , so that the read signals on the lines LH ' »nd ££' disappear. The required third coordinate for the read signals is thus implemented in the control branch.

After the »iero IdenUftziervorgang the assigned switching point S can now with switched off DC voltage on the line DW when a signal pulse is applied to the line HT and when a signal voltage is connected to the input £ 1.

which one-line EH are specifically controlled, so that when the bistable stage BS is switched over, a corresponding signal is produced at its output AS. With the help of the signal from the switching point, the reset input R of the flip-flop K can be activated via the coincidence element Kl when a command signal sent by the controller to the line R is simultaneously applied. This then prevents the transmission unit SE from issuing request signals. The functional units of this transmitter unit shown in block SE can in practice essentially be provided by a single component, e.g. B. a transfluxor can be realized.

In addition to a request signal, the FIG. 1 device shown additional ERl

* 5 Information can be sent to the existing LS reading line system. The information transmitters / S1 to ISn present in the relevant functional unit of this device, which are coupled in a certain way to the reading line system, are released for this information output by the output signal of the switching point that is effectively controlled. This release takes place via the logic element Kl, which has one input coupled to the AS output of the switching point.

is pelt and is acted upon via the other input with the same signal clock as the line HT or with a special clock supplied by the control device via a corresponding multiple line 5. In the IS ormationssender ^f are controlled by contacts or in terms of current through that device that wants to settle the relevant information in this manner. In the functional unit Ml of FIG. 1, this is indicated by the arrow drawn. The information channel on

The information signals placed on the existing read lines are transmitted by the central control device recognized as such and evaluated accordingly. Depending on whether the effective connection of the information siJfr before or after the blocking of the request signals already described Sending unit takes place, there are various ways of receiving the request signals from the other To distinguish information signals. Basically, this distinction can be made through an address-dependent Assignment of the individual information outputs to the reading lines. Will For example, the information transmitter with the appearance of the output signal of the switching point immediately before blocking the assigned send input

6 “released” means that request and information signals are present on the reading line network at the same time. To prevent request signals from being erroneously viewed as information signals can now, for example, become the address

Corresponding hundreds and single read lines are not linked to the information transmitters. on this would then be a “separation of request signals and information signals possible.

509 513/270

23 28 Π6

As already explained, there can be two different types of equipment in the periphery, each of which is coupled to the monitoring system and a control station intervenes in its functional sequence. The first type of device only sends request signals that signal certain line conditions that are present in relay sets in the outgoing lines, for example, while the second type of device transmits additional information signals in addition to the request signals. Since request signals are initially sent out by both types of device, it must be possible to distinguish between them in the central control device. Various possibilities are conceivable for this. One possibility is that the type of device in question is recognized while the address is being determined. For example, certain places known to the identifier in the central control device in one of the three address coordinates can be assigned exclusively to devices of the second type, which therefore have to provide multiple information.

Another possibility of differentiation is that devices of the last-mentioned device type have an additional, characterizing coordinate. As a result, in contrast to a method in which an assignment to specific locations is made in one of the three coordinates, any addresses can be used for these devices. An additional reading line common to these devices or an additional control line acting as a fourth coordinate would be possible, on which DC voltage signals that prevent the occurrence of a signal at the output of the corresponding logic element can be connected using line DW. If such an additional line is provided for both device groups, each address can be used twice, namely for each of the two device types.

Provided that the request signals sent to the LH ' and LE' readings are each subjected to a half-wave of predetermined polarity from the two half-waves of a bipolar clock current, a different assignment of hundreds and ones read signals to the two can be made for both types of device Half waves take place. By connecting the read signals with opposite polarity, the identifier can differentiate between these types of device. It is also possible that at a point in time determined by the control, the device in question is caused to send information signals so that the possible arrival of such signals can be evaluated as a criterion for distinguishing between the two types of device. If this is done through the effective hiring of the assigned switching point, i.e. if the information transmitters are not released by a special information command via a corresponding line , the information read signals may only be transmitted on those read lines on which no more request signals can be sent at this point in time.

After the basic arrangement of a switching point and its functional intervention in the devices to be assigned to it has been shown in FIG. 1, FIG. 2 first shows the circuit structure of such a switching point. At the same time, this figure shows the interconnection of the off of two such switching elements, which are intended to influence respectively associated switching elements in the form of the bistable relays BR.

The Scbattstelie Sl shown in its details, like the switching point SZ of the same type, is via the three coordinate lines DW, HT and EH in the manner already described by a central control device, e.g. B. controlled via different addresses. For both switching points z. B. the lines to be linked DV ' and ΗΊ can be used, in which case different single lines are provided for the group of units. The z. B. two different relay groups BRU ₁ BR12 ... and BRZl, BR22 etc. assigned switching points thus differ in the address assigned to them with the same hundreds and the same decade by different single lines.

The switching element VG linking the two lines DW and HT from Fi α 1; _s t the magnetic core STÜ, which can be regarded as a switchable current transmitter. The windings of this magnetic core coupled to the two control lines can be duplicated to form a symmetrical control network by means of a second magnetic core, so that the sensitivity to interference is significantly reduced via the symmetrical control network formed in this way.

The two windings should then be applied to the ICcrne in such a way that they are decoupled from one another, ie the interference pulses picked up by the line DW are not transferred to the secondary circuit and can therefore not use the four-layer transistors Tl and Tl that simulates the bistable Switching element represents, affect. This four-layer equivalent ignites when there is a coincidence of the voltage applied to the line EH via the holding resistor RH , a clock signal applied to the line HT and when the line DW is de-energized, and remains conductive depending on the anode voltage. Since the load current is drawn from the connection of the four-layer equivalent corresponding to the base connection of a four-layer system, the anode connection remains free for a condition for igniting or extinguishing. By linking the two coordinate lines via the magnetic core STÜ, the simulated four-shift unit provides an electronic switch Jar that can be controlled in three coordinates. To hold, it only needs the one-hold voltage applied to the line EH , ie after the ignition, the clock can be switched off in those cases in which only passive elements are influenced via the switching point. This results in the possibility for other switching points which are to be actuated at the same time and which are then also used for identification in the manner described to use the same decade lines DW . So you can z. B. for switching points that are assigned to settings in the periphery, via which relays are only and very often operated and for switching points of the relay sets, which is predominantly identified, provide two independent address volumes, the various hundreds and one and common! own caden.

In the case of a real four-shift worker, only one load current may be drawn from the connection, the is much smaller than the anode current. Bet d ^ A replica with two transistors is needed by Träft * |

23 21 11 β

sistor Π to supply only the base current for the load transistor Ti.

The resistors RX and RZ in the four-layer simulation dissipate residual currents from the transistors, so that in addition to a higher anode ignition voltage, a lower temperature dependency is achieved. The diodes Dl and DI protect the emitter-base dodes of the transistors Π and Tl from negative voltage. The capacitors CX and Cl prevent ignition via the rate effect.

The load transistor Tl Hegt on the diagonal of a Gieichrichterbriicke that of the diodes DN and DP and each load existing diodes DLP and DLN is. In the exemplary embodiment, a command receiving relay BR is selected as the load in each case. By inserting the rectifier bridge, the arrangement acts like an electronic switch with two mutually decoupled outputs, one of which offers ground potential for positive and the other at the same time for negative current direction. An Mrom in any direction is therefore possible independently of one another in each load; only the larger of the two sums flows via transistor 72 when positive and negative currents are fed in at the same time. The difference between the amounts is taken over by the diodes DN and DP.

Switching means are provided for each switching point, which make it as insensitive as possible to internal and external disturbances. For example, the diode D3 limits negative peaks on the line EH, which the diodes Dl and Dl would stress in the reverse direction. The diode D4 limits positive peaks which could ignite the simulated four-layer system, in which the holding voltage is applied to the line EH but no ignition pulses.

The diodes DS limit the switch-off voltages of relays at the switch outputs ASP and ASN. In addition, the current flowing through them contributes to the switching process of the receiving relay BR, which is used, for example, as a load. This also protects the diode paths at the outputs that are stressed by switch-off peaks in the reverse direction. The lines connected to the outputs of the switching points are charged to a defined potential via the resistors F. This prevents capacitive charging currents when the holding voltage is applied to the EH line or when command voltages are applied.

The simulated four-layer layer is canceled by central switching off of the holding voltage EH , regardless of inductive switch-off peaks of the individual loads that act on the transistor 72.

With the help of the switching point, for example, a single device from a large number of decentralized devices can be marked by a central controller. It enables similar, overlapping or successive switching off and switching off of several Hafti'elais BRH, BRH etc. of the marked device by the control depending on the command signals on the multiple command lines B.

The established in the same way switching point Sl a corresponding relay group Bril, Bril is marked so. If a further group is to be marked at the same time as the marking of a group of relays assigned to a respective breakpoint, this group can be connected to a:

bodies can be formed. In the Figure ₁ 2, the outputs .aspx and ASP2 via the diodes D5 and Dt and outputs asnl and ASN2 through the diodes Dl and £> 8 zusaramengeschaltet be. At the common connection points of these diodes

it> can each lead one line to which a group of devices that can be set by command, e.g. B. the relay BRZl, BRZ2 , etc., is switched on. For protection against glitches and for

Forming downstream rectifiers, each of these lines also has a limiting diode DS and a forming resistor.

In the embodiment shown in FIG. 2, the command kit 51 and B1

so relays BRIl, BRXl or the Re. <js BRlX, BRIl switched, depending on whether the Schaltsalle Sl or Sl is controlled. The relays BR3X, BR31 are reached via the command line for 3 and BA when either switching point 51 or switching point 52 is activated. will. In this way, it is possible to mark a group of devices that can be set by command via various switching points.

The F i g. 3 shows the modification of a switching point with which it can be expanded on the output side.

The four-layer simulated from the transistors T1 and T1 is controlled via the control transformer STU with a hundred-cycle, decade current switched off and the line EH carrying a holding voltage. There are now not directly used the two outputs of such switching, but it will be to make the output side variable to the switching point, first create a new ^Le: processing system PH, NH formed. This takes place with the aid of the transistors 73 and 74, which are complementary to one another.

If transistor 72 of the four-layer equivalent becomes conductive, transistor 73 receives base current via resistor R1 and Zener diode DZ and applies positive voltage to line FH. The transistor 74 is turned on via the resistor /? 3 and applies this voltage to the line NH. Electronic switches can now be connected to these lines, which make output potential available in the most varied of ways for devices connected downstream of them. This takes place every

because for the duration of a command signal applied via the command line B. If, for example, a negative command voltage is applied to the command line B by the central control device , this takes effect via the diode DPI up to the control resistor RS1 of the transistor TEP , so that it is blocked. In contrast to this, the transistor TEN receives base current from the line NH via the control resistor RSl and the diode OiVl. This creates earth potential for currents flowing from plus to minus

offered. If, instead of a negative command voltage, a positive command voltage is applied by the control, the transistors TRP are turned on at the stiffness of the transistor TßN and ground potential is offered for the opposite current direction.

In the event that not only such earth switches of opposite polarity, but also voltage switches for negative and positive voltage are to be controlled via the command line B, the

ix

to a pair of combined transistors TEP and TtN via a corresponding Steuerwjderstarid MS büw. 7? Ä4 each one for the relevant Tfärisistöf de * pairs * kornptem & ntarfif, ah the desired voltage switched on transistor TP or f / V are activated, In this way the etilspfecliendeü voltages Züif are available for downstream devices for the execution of a command at the same time ''

Since the base current for the respective upgrading transistor is not supplied via the command line and, on the other hand, the full command voltage is used as reverse voltage, interference spinning at the connection point of the command line with the respective switch may have approximately the value of the command voltage. In the case of blocking, the diodes DPI and DN1 protect the emitter base lines of the transistors TEP and TEN from the command voltage applied in the direction of the voltage. The blocking of the transistors Ti and T4 takes place in each case via a low-resistance resistor Rl or /? 4 and the blocking of the transistors TP and TN via the resistors RS or 6.

The low-ohm base resistance Rl and the Zener diode DZ at the base of the transistor Ti have the effect that this transistor only becomes conductive when the transistor Tl of the simulated four-layer system is fully turned on. If this transistor is only weakly controlled by interference pulses, this has no effect on the switching state of the transistor Ti. To protect the transistors, interference peaks are limited by the diodes DS at the outputs of the individual electronic switches. In the case of rest , the forming resistors F apply forming voltage for subsequent diodes or reverse voltage for transistor amplifiers connected downstream.

The diodes DPlbzw. /), V2 are protected against overvoltages occurring in the reverse direction by the limiting diodes DBi and DBl.

If the two transistors TEP, TEN of the switch pair are operated both together and individually, then a separate command line can be provided for each transistor of the switch pair.

Another variant for expanding the outputs of a switching point is shown in FIG. The bus lines PH and .VW are formed in accordance with FIG. 3 via the transistors Ti and T4. When the assigned switching point is controlled via the address assigned to it, positive and negative voltage are initially applied to these lines regardless of any commands. SoR now from efttem Seitialterpäaf fl / * l, TlSNt fozw. of which about them according to the F i g. 3 controlled further Fast TEPl, TEtOt not optionally only one switch should be conductive, but should always both be turned on at the same time when a corresponding command voltage is applied, only one transistor, e.g. TEPt, is influenced directly via the command line, while the switch TENt via a Voltage divider RTt, RTl is controlled from the output of the first transistor TEPl .

Devices connected downstream can then in turn be controlled via the outputs APt and ANt.

The other components are the same! those of Fig. 3 and have already been used in terms of their function described.

By influencing electronic switches that are positive or negative for the duration of a command Providing voltage or earth is esaucl possible, a single interface exercises different ones Groups of associated facilities, e.g. B. Relay to achieve.

It is namely possible to connect wider pairs of electronic switches to the lines PH and NH influenced by the output of a switching point. This is shown in FIG. 4 for an additional pair of switches TEP1, TEh'1 . In the depicted

ίο embodiment is thus a mark in front of two at the respective outputs APX, AN \ or APl. ANl connected line systems, which in turn again in the same way as the normal outputs of a switch group by command influencing controllable devices, possible If 1. B. negative command potential is applied to command line B1 by the central control device and positive command potential is applied to command line $ B1 , when the connection point is activated

% t> the electronic switches TEPX, TENl locked and the electronic switches TEPl, TENl conductively controlled. Which of the two groups of devices connected to the respective outputs of a pair of switches is marked can

a $ SSII by the choice of Bcfehlsspannungen the BefehlsleKöngen and Bl are set. It is possible to mark either one of the two groups of facilities or both at the same time.

In addition to this electronic switching, there is also the option of switching the outputs of a switching point to two different lines management systems with a relay. This relay would have to be controlled via a command line

and connect the outputs to one of two line systems via corresponding switching contacts. A group of over corresponding ones can then in turn be connected to these line systems Command lines accessible facilities connected

be controlled. With each change of group must then before the actual setting of this facility, z. B. Relay that makes the switchover Relays are operated.

By marking one of several lines

management systems η via a connection point and corresponding commands, addresses and connection points can be saved.

The F i g. Fig. 5 shows circuit details of Fig. 5 Fig. 1 only shown as a block diagram

directions ERl, which is assigned to a switching point S. It represents an existing device in the work area of a control unit for passive Kelaisuätze, e.g. B. the information transmission device fin a key receiver, the information mil a width of several bits is to be delivered to a central facility via a reading line system. There are only the units required for this, namely the transmission unit SE and the unit MI which emits the multi-path information, as well as the fin: their Control required components shown If the device in question has to send related information, a request signal is first transmitted over certain read lines. This request signal, which is used for address en- is used to determine the respective device, is transmitted by the transmitter unit S £, to the selected execution example! an appropriately controlled Transfluxor TF is used as the address transmitter. En

Such Transfluxor has "as the symbolic representation can be seen, two equivalent StcuerschertkeK wherein the one of the blocking limbs B serving the windings WB and the setting changed serving control leg £ s the windings we are applied. In an as ExgIusiV "Ödef> Tr ** nsf uxör Bäüform designated! The wt with eirtertiSigrtaitaktbeaufiiChlagten windings and tffe Lesewicfttung ^ n wi dupidiö jrtr equivalents are ^ leg attached holes'. BCII * t Arilie- to gen clock signals to the winding wl output signals arise on the reading winding wl only when the fluxes generated via the two control legs B and £ have opposite directions in the common central web.In any other is case, the transmission between those windings that are led through the holes in the central leg is blocked When using a transfluxor constructed in this way, there is now the possibility of requesting corresponding control signals from the device in two ways. The type of request depends on the direction of magnetization in the blocking and adjusting leg of the transfluxor of both types are requested, the control signals must be so- «5 wk hl influence both the adjustment and the blocking limb of the transfluxor. If only the beginning of a respective stimulus is to be reported, either the magnetization state in both the setting and the lilockadeschcnkcl must be changed when the stimulus signal ends, or neither must be influenced so that there is no renewed request.

If the device controlling the information transmission device Ml has to send information, then ground is applied to the corresponding winding of the time core ZK via the transistor IA , whereby it is brought into the magnetization state opposite to the idle state. Via the winding coupled to the control circuit of the time transistor TZ , the latter is now opened for a certain time. Depending on the desired type of request, the controlling device now keeps either the transistor TAl or the transistor TAl conductive. A current pulse is thereby applied to one of the blockade windings wbl or wbl via the time transistor. About one of the two windings on the Einstcllschenkel E, namely the winding HRI or wc2 it receives via the selected transistor 7.11 or TAI required Einstcll thrill, The Blockadesehenkel j? of the transfluxor is thus impulsively excited and the adjustment leg E, on the other hand, is statically excited.

With appropriate dimensioning of the time core ZK and the current supplied to the time core by the transistor TA , the transistor TZ can be saved and the transfluxor can be controlled directly from the output winding of the chopping core.

If the requesting device goes into the idle state, the Zehkera ZK is reset via the winding wl through the blocking of the transtor TA . The diode DS protects the emitter-base path of the ZeHtransistor TZ from excessively high voltage. However, the zufetzt conducting transistor TAI or TAI feleibt turned on, so that the E Ernsteflseheniel further receives an excitation If the device controlled return possibility to such storage besifrt, the transistors TA TAX or 2 may be a flip-flop set in place.

If there is no DC voltage on the decade line DW and if clock signals are applied to the hundred line HT , then corresponding waste signals are present on the winding wi of the transfluxor via the secondary winding wsl of the control transformer 5füi. After the above-described setting of the Transfluxors characterized Through the Lesewicklungien wl Leseirrtpniil & e "ufi '^ l SH ^ f r> and Einerleseleitufig LH WS" 7.ßahgfcgemr) wetäeru By a corresponding arrangement of the clock windings can be avoided. That the interrogation signal in the Small residues can be suppressed by appropriate short-circuit windings.

Assuming bipolar signal signals, the two reading windings wH or wll and the reading diodes / JLl or ULI are so polarized that signals are fed into an Lcscline during the opposite half-waves. In addition, the threshold voltage of these reading diodes prevents a residual signal emitted when the transfluxor is blocked from reaching a reading line.

On the basis of these LC signals fed in in two coordinates and with the help of a search program In the decade line the Identifi / icrcr can now contain the address of the relevant address sender and thus determine the affiliated facility in three coordinates.

After determining the address assigned to the device Schaltstclle S can be driven in the manner already described now, so that the injected when voltage is applied to the line by the EH across the winding ws \ of Steuerübertragers STüX signals wild ignited the Vierscltichtcräquivalent. The turning on of the transistor 72 of the switchgear now entails various subsequent functions. A blocking program can be carried out and the transmission of information from the information transmitter to the remote control can be released. This release can take place either before or after the blocking program. It can be carried out directly as a function of the ignition of the four-shift system or only at a later point in time by means of an information command issued by the control system via a corresponding command line.

Via the blocking program, the Transfluxor TF was blocked by pulses of opposite polarity applied by the control device to the line R with the transistor Tt conducting via the winding wbl, which is connected to the circuit point BH . As a result of the blockade process, the flow in blockage leg B is placed after the address has been determined in such a way that no more output signal is output on the read lines. The type of request signal emitted by the address transfluxor can be deduced from the direction of flow of the blocking pulse required for this. The feed of the BToekierhnpulses can be done symmetrically with the help of a transformer, so that the blocking circuit is insensitive to interference pulses.

The loads in the functional unit Λί / for delivery

If the information is correct, the information transmission provided by JS is formed by the rectangular magnetic cores MK. According to the information to be transmitted, this must be done before the start of the request to by the controlling device via the windings wg.,. individually blocked or released. If a kernel is to deliver Iftförffiättoneri, then it is drawn into a safty position via these flow-rate-controlled currents. This is done by activating the respective 1 1 ansistören Ti., . achieved.

The toagnetkef ne MK are each combined into a pair of MKM MKU, MKlX MKIl etc. Clock signals are applied to them via the series of windings Wt .... These clock windings and the read windings wl ... are polarized (so that one magnetic core of a pair in the positive and the other in the negative clock phase can give read impulse to certain read lines coupled to them. The diodes DH ... each limit in the clock phase in which a core does not work on the read line, the amplitude of the counter voltage in the clock circuit.

Instead of a direct current, which is switched off when information is output as desired, in order to control the core into the transmission position, a controlling setting current can also be used for the information cores. In such a case, two clock circuits are formed in which a diode allows current to flow only in the positive or only in the negative clock phase. The corresponding information cores are then located in each of the two clock cycles. The windings to be influenced by the controlling direct current wg ... of these information cores must then be polarized in such a way that this direct current counteracts the clock pulse. If such a current flows, a core switched by a clock pulse is tilted back by the direct current during the clock pause, so that this setting enables it to emit a read signal again at the next clock pulse. If no such controlling direct current flows, the magnetic core is always in the remanence position corresponding to the clock pulse and cannot emit any read signals due to the clock pulses.

The interrogation cycle for the individual magnetic cores MK ... serving as information transmitters is fed in via the winding ws of the control transmitter STÜI. This control transmitter, which supplies all the information transmitters via a corresponding series connection of their clock signals wt , can be acted upon on the primary side with the same dog clock, which influences the control transmitter STÜi via the line HT. It could also be due to a special cycle that was common for all control transmitters and switched on at a later point in time. The common release or blocking of the individual magnetic cores of such a device takes place by switching the clock transmission on or off by this control transmitter. This control can be carried out directly by igniting the four-shift equivalent of the switching point. Eight other possibility is to release the respective tax transfer for this information transmitter after the four-shift worker has been fired at the wrong time via a special control line . In the two cases with the release de occurring later than the ignition of the four-shift equivalent. The information transmitter can then first of all block the address deferral already mentioned.

s fluxors are carried out, since there is no overlap between address and information signals occurs.

In the embodiment according to Pig »5, the control transformer S7t / 2, which is linked to the link» -

This corresponds to element K2 in the block diagram as shown in FIG . The primary winding wp of the control transmitter STUl is connected to the line HT with η-

tS applied to the clock signals. If the transistor T1 of the assigned switching point is in the non-conductive state, a current flows through the resistor RW, the winding wr and the diode DS1. This turns this control transmitter into a saturation movement position so that it cannot transmit any clock current to the information cores MK coupled to it on the secondary side. After the control of the switching point via the lines coupled to the transformer STUl and via the holding line EH

As the current flowing through the winding wr is now taken over by the transistor Tl through the diode DSl after the ignition of the simulated four-layer layer. This means that the control transmitter supplied by the same clock as the control transmitter STUt

STUl apply signals to the information cores MK ... on the secondary side via the winding wsl.

In order to close the windings * /> or wt leading the clock current or the withdrawal current against each other decouple so that the clock through the withdrawal circle is not loaded, the control transformer STUl in the practical version consists of two rectangular ferrite cores. In contrast to the exemplary embodiment shown in FIG. 2 for controlling the transmitter STUl, instead of a single one Withdrawal winding wr provide two such windings. In the idle state, Ce square ferrite was drawn into a saturation position via a winding by the constant current flowing via a corresponding winding. If the transistor Tl

of the switching point conductive, this would result in a current flow made possible by the second pull-out winding, so that thereby the effect of the quiescent current through the first Winding is canceled and the transmitter can give clock signals to the information cores.

Another possible circuit for the control transmitter STÜI is shown in FIG. The transistor T is conductive in the idle state and short- circuits the winding wr of the control transformer. This short circuit is only thrown during one half-wool . Since the rectangular ferrite core does not perform a flux stroke during one half-wave because of this short circuit, it cannot produce an output signal at the information signal during the other half-wave of the clock signal applied to the winding wp.

output cores coupled secondary winding ws . When the transistor Tl of Schaltstelie S conductive so the transistor is diode DSP mfi the output T ^ SPderSchaltstellederTransistor locked by the coupling of the drive circuit so that

the control transmitter STÜI can give clock signals to the downstream information cores unhindered on the secondary side. With the concern of the clock type the corresponding

the windings Wt of the information cores MK, which are nt controlled in the manner already described by the device in accordance with the information to be output, "this information can now be applied as reading signals to the reading lines coupled to them.

In the exemplary embodiment according to FIG. 5, the information cores are released via the control transmitter SWi when the simulated four- switch switch is triggered. As has already been explained, when the switching point is effectively switched on, it is possible to block the assigned address transmitter via a corresponding command line by means of a signal pulse sent by the controller. In order to enable the address signals to be distinguished from the information signals, it must be checked whether this blockade of the address sender of the associated device has been carried out properly.

Such a possibility is for example given when emitting device is used to that of a read line LE, the zn to the address determination for such Mehrfachinformatioi no information transmitters are wired. In this way, the identifier on this line can then monitor the proper blocking of the address transfluxor TF of the transmitting unit SE even after the information transmitter has been released. Since hundreds and read-in signals are given by the same address sender, it is sufficient to carry out this check on one of the two line systems. If one assigns such devices to one or more specific hundred or one read lines and sends the address signals via these, this control can always take place on the same lines and the information bits are always given in the same order. However, if such devices are arranged at any address and only the reading line belonging to the respective address is connected to an information transmitter in one coordinate, the assignment of information bits and reading line is different depending on the address of the device. The central control device must then receive the information signals corresponding to the address of the one being served. Rearrange multiple information sending device in such a way that a uniform assignment of information bits and positions is created again

Since basically all devices of the same decade of a polled group of hundreds of address signals in the same line can go on a hundred-inch line, the single line must be used for the test process.

After the successful bloekade program, in addition to the decade line DW connected to the command, the mentor switches direct voltage to the decade line DW that belongs to the address of the device currently being operated. In this way, alfe control transmitters STO1 coupled to these lines are drawn into a saturation position which blocks the transmission, so that the address ffuxors coupled to them on the secondary side can no longer receive any clock signals. As a result, no more address signals can reach the reading lines LE or LH, which are coupled to the reading windings of the transfluxor. By measuring the current on the Ewierhafteleline EH assigned to the respective switch point, it is possible to check whether only one four-shift shift has ignited. If several four-layer devices had ignited, the block designate would be distributed over several transfluxors, so that the transfluxor determined here is not completely blocked, and the host found that several simulated four-layer devices have ignited, so this could also be a sign of daftii that incorrectly several Hurtdertakts are switched on or coupled with the Dekadenleiiiung DW windings are interrupted or over brück ι.

»° Another possibility to test the best in it that after the Ölockadeprogramni next to the Decade currents also turn on all one's holding voltages. Be on firing more four shifts thus also incorrectly clocking tax transfers

'S recognized in other than the selected ones.

The test carried out by means of current measurement on the holding line ensures that only one control transmitter STU1 is enabled. The one after that on the reading lines

Ao lying signals are evaluated by the central control as information. After this information has been processed, the four-shift system of the respective switching point is deleted by switching off the one-hold voltage. The one previously through the transistor TI of the switching point

»5 current taken over and flowing through the resistor RW now again influences the winding wr of the control transmitter STUl. whereby this is blocked for the transmission of signals. With proper blocking of this control transmitter

This current means that there are no longer any signals on any read line. After this has been checked, the Process identifier for the next operation.

The initial state is restored when the said transmission means Ml-addressing device shuts off the through transistor TA for the time kernel ZK supplied demand current and the control currents for the individual cores information MK. The magnetic core ZK is reset by the current flowing continuously through the winding wl. The last conductive transistor 7/11 or TA 2 remains open, so that nothing changes in the control excitation of the address transfluxor TF. In the example described for connecting the information cores to the existing reading line system, all reading lines except one can be used for information transmission. No additional lines are required for this in the control and read line network.

There is also the possibility that all Le lines are used to transmit information. The information read signals are also transmitted to the read lines belonging to the address of the device in question. In such a case, the address disfisfluxöf of the SettdeWittrftlt SB m * will next be blocked on a trial basis with a signal of the specified current direction, whereby the correct blocking cannot be checked because the address signals may be are covered by information signals. After in the catfish previously described

6ö recorded after the oil loading program and switching on all decade pull-out str & frre

pending reading safe as Inföfmafiöft wMdef

replicated layers of shadows deleted.

To check for proper blockage of the

Address transfluxor, the DC voltage present on the decade line corresponding to the address is then switched off again, so that all control transmitters STOt for this decade run. At ef ~

2328 Π6

Π *

¹ 1 30

blockade of the address transfluxor because no read signals with those belonging to the address Single reading line occur. Standing on a hundred and a single line or reading signals, the relevant Väirschicbter is re-ignited and it becomes with an impulse of opposite polarity blocked. The information does not need to be corrected because it is being recorded by switching on all decade withdrawal currents, there is also a non-blocked address transfluxor received no clock stream, so that no corruption of information signals by address signals occurred.

In the embodiment shown in FIG. 5, separate control transmitters, namely the control transmitters STO1 and STÜ2 , are used for the clock supply of the address transfluxor TFun6 for the clock supply of the information cores MK. It is possible to use led for clock supply for both functional units ^; use the control transmitter STÜl / u. In such a case, it must be designed for a correspondingly larger flux stroke due to a higher number of turns or a larger core cross-section. However, the information cores cannot then be released by controlling this common control transmitter. It can be carried out, for example, with the help of a line common to all information ^{transmitters T of} a device, via which the individual cores can be drawn into a SaUigungslage by appropriate current flow.

If the control transmitter STÜ1 is only controlled via the two lines DW and HT , then after the address has been determined, all of the control transmitters of the selected decade are still enabled in a hundred. The address transfluxors assigned to them in each case, including the switching point influenced by them, in the respective transmission units .SE of the individual facilities could, independently of the central control, transmit address signals at any time, all of which are in the same, selected hundred, but on each of the single reading lines. The information signals of a device that transmits multiple information may therefore only be output on the hundreds of read lines that do not belong to the address of the device in question, in order to be able to distinguish them from the address signals. As already described, the correct blockade of the address transfluxor is checked on the associated single read line.

If there is only one single device in a decade that has to send out multiple information, so can the single reading lines can also be used to transmit information.

When using a control transmitter, which is available jointly for the address and information transmitters, it was also possible to provide a corresponding line for each one with the same effect in addition to the decade lines DW. Via this line, the control transmitter could then also be drawn into a saturation position that blocks the transmission by applying direct voltage. In this way, after addressing and corresponding selection of dog information, decoding and this additional information, only a single piece of information could be clocked. After the address transfluxor of the device being operated is blocked, there are no longer any address signals on any of the read lines, so that all hundreds and single read lines can be used to transmit information signals.

In the event that the information transmitter starts with the ignition of the VierschJchter * in the switching point, i.e. be are already released at the beginning of the blocking program, are created for the assignment of addresses

to and information outputs to the reading lines dii same possibilities as they already correspond to the use of separate control transmitters c of Fig. 5 have been described, with additional a possible corruption of the information signalsi

must be taken into account by address signals.

Fig. 7 shows another Ausführungsbeispie for the information transmitter, in which this is not, as in the embodiment according to FIG. 5, in terms of current by the controlling device, but by

ao contacts are controlled. In such an F; iJI, two magnetic cores combined to form a pair are used to output the two pieces of information, but only one information core MK each, which connects the two reading windings w / 1

as and μ72. The individual magnetic cores are periodically switched by the common clock for all magnetic cores that are contained in the multiple information-emitting structural unit Ml via a winding K7. These clock signals can

for example in accordance with the statements made for FIG. 5 about the winding ws a; Control transmitter STÜ2 to the series lying windings wt of the individual information cores MK ... are delivered. The two reading wraps

gen wl \ n72 and permanently assigned a source of information Informationskontakl respectively ik same read line LE switched. The windings u / 1 and n / 2 and the diodes DFi and DF'i are thus gfpolt. that one read winding emits a read signal on the read line during the positive clock phase and the other during the negative clock phase. If information is not switched on, the relevant output is short-circuited via the idle side of the intimate contact ik. This prevents several otherwise unloaded cores from generating a high counter-voltage at the beginning of the corresponding clock phase and thus making it more difficult to feed in a constant clock current. The diode Df located within the short circuit ensures that the core is fully switched over in spite of the short circuit and can thus emit a full signal in the other clock phase.

In the Fi g. 8 to K) are further exemplary embodiments for the transmission unit SE according to FIG. 5 shown the so after a corresponding incentive by there; attached device for address determination emits request signals to certain reading lines coupled to it of the Lcscleitssystems. Again, there should be two types of requirement that

ίο central control device by the polarity of the signaling pulse blocking the transmission unit can be differentiated. These signals are applied to the line R and are in the conductive state of the Tran 'in the manner already described.

6j sistors Tl of the respective switching point effective.

In the exemplary embodiments according to FIGS. 8 and 9, a transfluxor TF is used in each case to output these request signals.

(I.

In the circuit example according to FIG. 8,

cb the associated device either the transistor or the transistor TA2 awfcontrolled. By the current flowing above the diode DZ, the winding wl of the time core ZK and the resistor RZX , this magnetic core is tilted and makes the time transistor TZ conductive for a certain time according to its volt-seconds area. During this time, a current flows via the windings wbl on the BJockade handle B and via the winding wel on the adjustment leg E or via the windings wbi and wel . The polarity of the windings is such that the transfluxor is set according to the two possible types. After the magnetic core ZK has reached saturation and the transistor TZ has been blocked again, the two legs of the transfluxor are de-energized. It can be blocked by the controller via the winding Wbl. If the associated device removes the stimulus emanating from it for a request signal by blocking the transistor TAl or 7> i2, a current flow through the winding wl of the time core ZK is prevented, so that it is caused by the quiescent current through the winding wl and the resistor RZl is withdrawn to the starting position. The emitter base path of the transistor TZ is protected from excessive voltage by the diode DS.

With the appropriate dimensioning of the magnetic core ZK and the current supplied to the magnetic core by the transistors TA I and TA2 , the transfluxor can also be controlled directly from the output winding tv3 of the magnetic core ZK. The transistor TZ can thus be saved.

The embodiment according to FIG. 9 shows the setting of the transfluxor when operating with a compensation current. In the idle state, the transistor TR is turned on . As a result, the blocking gifts are both over the winding wbl! of the transfluxor as well as via the winding wl of the time core ZK this is drawn into a saturation position. The adjustment leg E is magnetized by the compensation current IK constantly flowing through the winding wel. Both legs of the transfluxor thus receive such a rest excitation that the transfluxor is in the blocked state. If, for example, the first type of request is to be made by means of a corresponding stimulus, then, for example, the transistor TAl is controlled to be conductive by the associated activating device. This has the consequence that the transistor TR is blocked and the core ZK is tilted via the winding wl. Due to the signal generated in its secondary winding jv3, the blocking leg B of the transfluxor is magnetized via the winding wb3 in such a way that the transfluxor is set on the adjusting leg with unchanged magnetization conditions. If the magnetic core ZK is in the saturation position, the blockage leg can be magnetized back into the original position via the winding wbl by a signal applied by the central control device. This then blocks the transfluxor again. If the activating device removes the request stimulus by blocking the transistor TA 1, the transistor TR becomes conductive again. As a result, the time core ZK is tilted back into the rest position. The secondary current of the timer and the current through the winding wbl of the blocking leg then acts in the same direction as the blocking by the control, so that no change in the setting takes place. If the request is to be made in the second way, the transistor TAZ »Overturned. This pulls over the winding wel of the Transfluxor «

s _f so much current that the adjustment leg E is reversed against the constantly flowing compensation current IK . When the transistor TAI becomes conductive, the transistor TftsodaUderBlockudescbenkel is disabled at the same time

* ° is. The transfluxor is thus set and can be blocked by the central control device with a pulse which has opposite polarity compared to the first-mentioned case. If the controlling device turns the transistor TAl in

* 5 the storage state is controlled and thus the corresponding incentive no longer applies, the compensation current IK prevails again and magnetizes the control limb.

When the transistor TAl is blocked, the same

a ° early the transistor TR is again controlled to be conductive, so that the blocking leg B of the transfluxor is also remagnetized by the current flowing through the winding wbl. The two control legs thus receive one of the original block

^a 5 kade state corresponding excitation.

10 shows an exemplary embodiment for the address transmitter in which a magnetic core MKA is used instead of a transfluxor. The desired type of request is specified by the controlling device in that one of the two flip-flops Kl or Kl is controlled by this device in the switching state opposite to the idle state. In the idle state, the outputs of these flip-flops combined via the coincidence element U should be conductive. To issue the request signals, the magnetic core MKA is used, which is connected via the reading windings wl \ and wll in the same way as the transfluxor to a hundreds or single line LH or LE of the reading line system. By having the output of the coincidence element. U coupled windings we of the magnetic core XR and the winding wr of the requirement core MKA , these cores are drawn into a certain saturation position due to the current flowing through these windings in the idle state. The reset core KR is therefore in a defined rest position, and the request core KA cannot transmit any clock signals applied to the winding wt to one: read winding wl.

If one of the two flip-flops Kl or Kl is now switched to the position opposite to the initial state by the controlling device, the request core MKA can be used in the same way as a trans-

fluxor reading signals on certain lines of the reading line system release, which in turn, by appropriate evaluation of these signals, the Determination of the address of the associated device is possible. The blocks created by the controller *

Deimpulses act on the winding wR of the reset core £ / ?. The secondary windings wslund wsl are polarized in such a way that, depending on the polarity of the blockage pulse sent by the controller, one of the two flip-flops switches to idle

position is tilted. At the point in time at which both flip-flops are in the rest position again, the current flowing through the winding wr pulls the address core MKA away and at the same time

509 513/270

23 21 116

ΙΊ

34

eier Röekstellkern KR is brought over the winding we in a defined starting day. From the polarity of the blocking impulse that leads to the disappearance of the reading signal, as with the Transfluxor, conclusions can be drawn about the type of request.

If (Be requirement, additional information about the type of the respective request signals transferred, is not made, it is sufficient z. B. when using of a transfluxor as an address sender only urazumagnetize the blockage leg of the transfluxor. The adjustment leg then receives constant excitation.

A circuit example for setting such a transfluxor is shown in FIG. From the circuit symbol for the Transfluxor, only the blockage leg B is shown.

If a request signal is to be issued, the magnet core ZK is toggled by the switch 5 actuated by the controlling device via the winding wa. Due to the output signal arising in the secondary winding ws , the blocking leg B of the transfluxor is remagnetized via the winding wbl , so that the transfluxor is set. After the output pulse has decayed, the transfluxor can be blocked via the control in the manner already described when a signal is applied to the line R and an effectively controlled switching point via the winding wbl. If the request is omitted by (! As the controlling device, the core ZK is reset via the winding wr . The diode D prevents the impulse occurring on the secondary winding ws from affecting the blocking leg. This means that the transfluxor remains set if the device withdraws the incentive before the transfluxor is queried by the central control. Olwe this

ίο Diose D , the Transfluxor is blocked again by switching the core ZK when the controlling device switches off the current through the winding wa.

Instead of a magnetic core ZK , the

»5 pulse-wise magnetization of the blocking leg, the discharge current of a capacitor can also be used. This could be done in such a way that with the closure of the switch S d? E winding wb2 of the transfluxor via a correspondingly

ao switched a diode into the discharge circuit of the capacitor is placed. In the same way as described above, the Transfluxor can be set. When the switch 5 is opened by the activating device, the capacitor must then C can be placed in an appropriate charging circuit so that it is prepared for the next request is.

In addition 8 sheets of drawings

Claims (1)

23 28 lie Patent claims: 1. Circuit arrangement for switching points in Fepspreehantegen, which are assigned to devices to be actuated and / or provided for information delivery or information exchange with a central control device as a function of control commands, and the individual switching points can be influenced by the control device via a line system corresponding to several address coordinates , whereby signals characterizing a request can be fed from the devices to a reading line system coupled to them for evaluation by central switching elements, characterized in that each switching point is made up of a bistable switching element (BS) , in which activation of an output ( AS) when a control signal is applied to one (£ 1) of two inputs of the bistable switching element depending on a signal fed to the other triggering input (EA) and with the shutdown ten of the signal at the first input, a reset is made to the initial position, that of the addresses assigned to the switching points each group of lines ( EH, HT, DW) of the line system summarizing the lines (EH, HT, DW) of the least significant group (z. B. A) corresponding line 'EH) to the first input and the lines corresponding to the other Gi uppen (HT, DW) ^ he is a logic element (VG) connected to the triggering input of the bistable switching element and that, if the associated device ( ER2) does not contain elements to be operated exclusively by command, the output of the logic element is simultaneously connected to one input of a connection circuit (1 ^ 5) coupled on the output side for transmission of a request signal to the reading line system (LS), the other input of which a signal triggered by the device is supplied (Fig. I). 2. Circuit arrangement according to claim 1, characterized in that the bistable switching element is constructed from two mutually complementary, a controllable four-layer semiconductor simulating transistors (ΓΙ, Tl) and that by the modulation of the first transistor (Tl) via the corresponding to the address coordinates Line system certain conductive Zu-Jtand of the second transistor ( Tl) is evaluated as an output signal (Fig. 2). 3. Circuit arrangement according to claim 2, characterized in that the holding voltage is supplied via the line (EH) of the line system corresponding to the least significant group and the ignition pulse is supplied via the output of the linkage element (VG) (Fig. 2). 4. Circuit arrangement according to claim 2 and 3, characterized in that the main current path of the second transistor ( Tl) in one diagonal of a rectifier bridge circuit ( ON, DP, DLP, DLN) and that the connection to be assigned to the other diagonal 30th 35 40 45 50 ₅₅ points are connected on the one hand to earth potential and on the other hand to a switching element (BR) connected to a command line (fl), so that when the second transistor is conductive, the switching element can be influenced by currents in different directions when the command voltages are applied accordingly (Fig. 2). 5. Circuit arrangement according to claim 4, characterized in that the end points of the diagonals connected to the main current path of the second transistor are connected directly or via an output line connected to these end points at the same time to further bridge halves (DLPS, DLNS or DLP6, DLN6) each connected to a switching element (Fig. 2). 6. Circuit arrangement according to claim 5, characterized in that the corresponding outputs (ASPl, ASPl or ASNl, ASN'l) or output lines of at least two switching points (51,52) each have a decoupling rectifier ( DS, Dd or Dl, DS) are connected, which form extended outputs or the connection points for another line system, so that the switching elements connected to them (SÄ31, BR32 ...) can be actuated depending on one of the two switching points (Fig. 2). 7. Circuit arrangement according to claim 4 to 6, characterized in that the switching elements connected to the outputs or output lines via rectifier bridge halves (DLP, DLN) represent bistable elements (eg latching relays). 8. Circuit arrangement according to claim 4 to 6, characterized in that the switching elements Represent controllable ferromagnetic elements via appropriately applied windings. y. Circuit arrangement according to claim 2, characterized in that there are at least two switching elements coupled to the output (AS) of the second transistor ( T1) through which direct voltage potentials with opposite polarity are applied to a connection point assigned to each switching element or a connection line connected to it ( PH, NH) can be switched on, and so that the control circuit of an electronic switch (TP, TN) that can be effectively controlled simultaneously via a command line (S) with the corresponding command potential is firmly connected via a corresponding control resistor [RS) (FIG. 3). K). Circuit arrangement according to Claim 9, characterized in that the switching elements represent two transistors (73, 7, 4) which form a step circuit and are complementary to one another, the outputs of which are each connected to the connection point or connection line (PH, NH) assigned to them (Fig. 3 ). 11. Circuit arrangement make claim 9 and 10, characterized in that the electrant * see switches are combined into a pair ( TP, TN) consisting of two mutually complementary, corresponding to the predetermined polarity of a certain connection point or connection line associated transistors, and that to the outputs (AP, AN) of a pair of switches and / or to one permanently connected to it 23 28 i Connection line individual or a specific group of switching elements or ^devices to be operated via the switching point are connected (Fig, 3), 12. Circuit arrangement according to claim Il s, characterized in that only one transit sfor (TjEPI) of the transistor pair (TEPl, TENl) can be influenced by the command line (jBI) and that the other transistor ( TENl) is turned on from the output of the first transistor {Fig 4) χο 13. Circuit arrangement according to claim II and 12, characterized in that several switch pairs (TEPl, TENl or TEPl, TENl) which can be influenced via separate command lines (Bl, Bl) are present, so that several formed by the outputs of the transistor pairs via a switching point Line systems (APl ANl or API, ANl ...) or the switching elements and / or devices coupled to the individual line systems can be marked ao (FIG. 4). 14. Circuit arrangement according to claims 1 to 13, characterized in that the connection points of a switching point coupled to the individual lines of the line system corresponding to the address coordinates are simultaneously connected to the corresponding connection points of at least one further switching point assigned to another device . _{3 <} j 15. Circuit arrangement according to one of claims 1 to 14, characterized in that the logic element ( VG) for the lines of the line system corresponding to the address coordinates consists of a magnetic core (STU) , the control windings of which via the one (HT) of the lines ( HT) to be linked , DW) clock signals and via the other (DW) one the transmission; pulling DC voltage can be supplied. (Fig. 1, Fig. 2). 16. Circuit arrangement according to one of claims 1 to 14, characterized in that the request signal is sent out by a clock-controlled transmission unit (SE) depending on the presence of an incentive signal (SA) specified by the devices assigned to it (ER!) (Fig. I) . 17. Circuit arrangement according to claim 16, characterized in that after evaluation of a request signal through central switching elements assigned to the requesting device Switching point is activated and that with the occurrence of the output signal that of a Control device via one, different groups of devices each common Control or command line system can supply signals exclusively to the selected device can influence. 18. Circuit arrangement according to the claims ■ 1 6 and i 7, characterized in that in a device provided for the transmission of additional information (z. B. stored dialing information) the information transmitter (JS) directly or in coincidence with the output signal (AS) of the switching point assigned to this device a corresponding control signal S of the control device (ZST) are released that the InformatU> /. ssender to transmit the individual information to certain lines of the existing reading line system (LS) can be effectively switched on and that by linking the output signal (AS) of the switching point with a command signal (R) supplied by the control device, the transmission unit emitting the request signal can be blocked (FIG. I). ly. Circuit arrangement according to claim 18, characterized in that by the selection of the linked to the information transmitters Lines of the reading line system and / or by choosing the one for the effective connection of the individual information transmitter decisive point in time the distinction between request signal and information signals is made. 20. A circuit arrangement according to claim 18, characterized in that the information transmitter (JS) consists of a magnetic core (MK) which can be inflated with clock signals via a Siei-.er Transmitter (STÜ2) and that by the conductive state of the second transistor which simulates the four-layer semiconductor Circuit predetermined output signal is controlled in the idle state locked control transmitter in the transfer state (Fig. 5). 21. Circuit arrangement according to claim 20, characterized in that the blocking of the control transmitter (STÜ2) takes place by a quiescent direct current and that in the conductive state of the transistor ( Tl) the current flow through the corresponding winding ( wr) is prevented or through the current flow caused thereby via a further winding opposite winding sense is compensated (Fig. 5, Fig. 6). 22. Circuit arrangement according to claim 18, characterized in that the information output according to the information to be sent by the requesting facility via im Output circuit of the magnetic cores arranged and controlled accordingly by the device Contacts takes place. 23. A circuit arrangement according to claim 18, characterized in that the information output when the output circuit is permanently connected to the existing reading line system in dependence on appropriately switched control currents (771, TJl ...) through which the individual magnetic cores in the clock transmission of the preparatory supplied Clock signals are controlled according to the required magnetization state (Fig. 5). 24. Circuit arrangement according to claim IX. characterized in that the request signal is independent of one another by differently submitted-; Incentive signals of the requesting device is triggered and that from the Polarity of the to block the request signal! emitting transmission unit from the control device supplied control pulses the Type de: r requirement differentiated as additional information can be. 25. Circuit arrangement according to claims 15 and 24, characterized in that the request signal via the read windings ( wl) of a ferromagnctischcn component ( TF) is output, the interrogation winding (wt) with the Secondary winding of the sleue that connects the lines of the LeitUrtgs »ySte (t1s) rübe rt rage rs (SWi) coupled iöt tlrid dessert transmission sigdliseltaftefl; dUfcH dii of the requesting ßftiHefiiurtg (Λί /) emitted prompt signals (Fig. 5» 1 ). 36; äeMün ^ äöfdhÜftg: "fet" claim 25. gekenttZeiGhnet that the Attröizsignal ■ vörW AüsprigMgttäl elrief is derived from two bistable stages (Atf. Kl) switched by the requesting device in the position opposite to the rest position, that the ferromagnetic component is a simple one Magnetic core (MKA) which is controlled by the output signal via a corresponding winding ( wt) into the magnetization state which enables clock transmission (FIG. 10). 27. Circuit arrangement according to claim 2h. characterized in that the outputs of the bistable multivibrator which carry signals in the idle state are combined via an AND element ( U) which is connected on the output side to the winding of the magnet core [MKA] which determines the state of magnetization (Fig. H)). 2K. Circuit arrangement according to claims 26 to 27. characterized in that the reset input (Rl. Rl) of the bistable stages (Kl, Kl) are connected to the correspondingly polarized windings (wsl. Wsl) of a further magnetic core [KR) and that further windings ( WR, we) of the magnetic core ( KR) are connected to the outputs (ASP.ASN) of the switching point (BS) on the one hand and the command line system (R) on the other hand in such a way that a specific trigger stage can be switched by a control signal of predetermined polarity (Fig. 10 ). 29. Circuit arrangement according to claim 25, characterized in that the ferromagnetic component represents a transfluxor ( TF) and that this is applied to separate control legs (B, E) with appropriate polarity in its windings, the transmission of the clock signals (wt) applied to the Reading windings ( wl) controlling magnetization state by the requesting device delivered l i Mii g gg