CH623179A5 - Circuit arrangement for a centrally controlled telecommunication switching system, comprising a central processor and intermediate-level processors. - Google Patents

Description

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PATENT CLAIMS an additional coupling network, an additional data transmission

1. Circuit arrangement for a centrally controlled transmission line bundle (Bb) with an allotment and connection intercom system with a speech path switching network direction and different groups from the same facility and with the exchange of switching technology for gen (TV, DVA, BV, SG , HSx, HSy) are provided, whereby the connection establishment via the speech path switching network additional data transmission line bundle (AnB) with the factory serving data, addresses and control commands between for the exchange of data, addresses and control commands for separate parts provided for different tasks. the establishment of the connection via the speech path switching network controls and data transmission line bundle (Bl, Bn, BSo) provided between these sub-controls and a plant (SK) provided by the central control unit via their allocation and connecting device bundle and with each data transmission line (Ani, Ann, AnS) and via a common data rail (DS) device bundle, the uniqueness and connection with the aid of the central control unit (ZS1) for the related transmission of the information-exchanging data, addresses and control commands, coupling and connecting device, characterized, is.

that for the exchange of switching-related data as well as for the establishment of the connection, addresses and 15

Control commands between for different tasks

existing, different groups of the same devices (for example AVSx, WSx, VMSx in FIG. 2) with their separate sub-controls (TSt, ASt, WSt, VSt) for these sub-controls. The invention relates to a circuit arrangement at least one common data transmission line bundle 20 for a centrally controlled one Telephone switching system with (B1), each with an allocation for each data transmission line bundle - a speech path switching network and with for exchange and connection device (Ani) is provided, via which switching technology, for the establishment of the connection, the exchange of data, addresses and control commands for the data serving via the speech path switching network, Establishing an address connection via a common data rail and control commands between separate sub-controls provided for different tasks (DS) between two of the sub-controls (e.g. TSt and QSt) 25 and between and between each sub-control (e.g. TSt) and the central These sub-controls and a central control unit pre-control unit (ZS1) are carried out with a first polling cycle, for which purpose data transmission line bundles and with each of the existing sub-controls (e.g. HStl in Fig. 4) with each associated with the data transmission line bundle, the respective corresponding data transmission line bundle uniqueness and connection-related transmission of the del (B1 in Fig. 1 and Fig. 4) via corresponding input and 30 information-ensuring allocation and interface setup output buffer (ES, AS in Fig. 4) is connected and device.

each sub-controller (e.g. HStl in Fig. 4) for this input and by the DT-PS 1 190517 a circuit is already

Output buffers (ES, AS in Fig. 4) access via an order known, in which at the inputs of a switching matrix own internal data and address line bundle (An) with connected subscriber line circuits in groups has a different, second clock and with this data and 35th are arranged. Each of these groups is assigned its own partial address line bundle and an information processing control. In contrast, the switching matrix is an all processing device (CPU), a working memory (PSP), in which the groups of subscriber connections are stored, programs that are to be processed in a closed manner, and a separate unit.

Data memory (SP) in which the information is assigned to the network to be controlled or the relay sets.

the devices are stored, as well as corresponding 40 Furthermore, the coupling of lines has already been proposed in the German application P 26 02 159 input and output amplifier (AAA1 ... AA8) for the control (76 P 6004 BRD) - Subdivide and split column lines of a matrix for the network into switching network parts and to assign each switching control of a transfer or reception of information field parts to a partial control which are connectable to the central control unit via a data transmission line in or out of state identification switching means. «Data and information exchange can be connected.

2. The circuit arrangement according to claim 1, characterized. The object of the present invention is to design the participants in groups (GT to GTn) together to organize the partial controls in such a way that they are without quantity and each participant group (GT1 ) Change of the system-essential parts of both the partial control and each of such a participant group (GT1) as well as the other parts of the system, the most important assigned group of the same devices (AVSx or 50 modules of the partial control for different system sizes WSx or VMSx) assigned sub-controls and types can be used uniformly.

(TSt, ASt, WSt, VSt) has its own data transmission line. This is achieved according to the invention in that the bundle (B1) and also all others for special functions exchange of switching technology and for the connection-provided facilities (So, QV, D, DM, BD, MS, KY dungs serving data, addresses and control commands or TV, DVA, BV, SG, HSx, HSy) with assigned sub-controls between 55 existing SoSt, QSt, DSt, for different tasks DMSt, BDSt, MSt, KVSt or TVSt, different groups of the same institutions with their DASt, BVSt, SGt, HStw) separate data transmission control separate sub-controls for these sub-controls (Bl or Bm or BSo or Bb). and is assigned to at least one common data transmission line bundle, each with all these data transmission line bundles (Bl, Bm, BSo, data transmission line bundles, one allocation and connection Bd) by means of their own allocation and connection 60 device is provided, via which the exchange of equipment (Ani, AnS, Ann, AnB) via a common data data, addresses and control commands at the connecting rail (DS) for the purpose of information and command exchange between a common position Data rails between two see two of the partial controls (e.g. TSt and QSt) or between the partial controls and between each partial control and see one of the partial controls (eg ASt) and the central control unit with a first polling control (ZS1) connected to the central control (ZS1) 65 , for which each of the existing partial controls are with the. each corresponding data transmission line bundle

3. Circuit arrangement according to claim 1, characterized in corresponding input and output buffer stores that in addition to the speech path switching network (SK) is connected and each Teilsteuerang to this input and

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Output buffer storage Access via its own internal In this context, reference is made to the older bundle of German data and address lines with another, see patent application P 260 2159.0 (76 P 6004 BRD). It is clear that the clock has and with these data and address line bundles that the switching network part N is also correspondingly present - both an information processing device, one of whose subscriber sub-groups has several parallel switching network

Main memory in which the programs to be processed have or can have.

and a data memory in which the information of each group of participants, e.g. the GT1 group of participants,

NEN of the devices to be controlled are stored as which can consist of several subscriber sub-groups, and corresponding input and output amplifiers for which, as mentioned above, certain central device controls of row and column lines are assigned to a matrix, such as a group for official control purposes a transfer or inclusion of information sets, of which only one with the designation AVSx is shown in or out of status identification switching means. Furthermore, for example, several dialing memory sets are bindable. one of which is shown with the designation WSx and

This makes it possible in a simple manner, for example, in the case of standard telephony, a number of switching telephones, of which the interfaces between the data and address line ranked one with the designation BFx with the associated connection bundle and the aforementioned memories or the information set VMSx is shown. Every other subscriber group also has a number of office processing sets and the control switching means, office sets, dialing memory sets for the matrix, depending on the size of the system and the scope of information and operator telephones with connection sets, the number and number of devices and equipment, number of units depending on the market value. Depending on the traffic, with similar tasks but different partial taxation and needs, it may not be necessary to summarize each gene. This is also possible only because 20 subscriber groups have their own operator telephone because the same types of construction are used for different system sizes, since the stones assigned to a subscriber group can be used and are provided. In this way, depending on the size of the system, the one provided for each sub-controller can also help together in each participant telephone according to the size of the system. The participant circuits of a participatory effort are used more economically, i.e. each of the mer group, e.g. B. GT1, are connected via appropriate

System size can be reduced or multiplied accordingly with a partial control for subscriber circuits TSt. connectable. This partial control TSt for subscriber circuit

An exemplary embodiment is assigned below on the basis of the following switching means which describe the figures listed as described below. is, by cyclical scanning on the part of the control unit TSt,

Fig. 1 shows a general system overview of whether the switching state of the subscriber circuit, the tral-controlled telephone private branch exchange. 30 is queried, changed or not. Is a change

Fig. 2 shows a system with an expansion up to 120 partially entered and a mediation process, so subscriber connections. via the data transfer assigned to the group of participants

Figure 3 shows a system with, for example, max. 30 trunk line bundle Bl an exchange of information with the subscriber lines. central control unit ZS1 made. The data transfer

4 shows an example of the partial control for the trunk line bundle is for the coded forwarding of information. mations of any kind and could also as with

From the system overview shown in FIG. 1 of a PCM loop line system operated in the PCM process, a controlled telephone private branch exchange can be seen.

In this context, it should be noted that the second station

the selected grouping to subscriber groups 4o central control unit ZS2 are only summarized as a replacement control unit and each participant group is also thought to have its own group of outside line transfers, in the event of a fault in the central control unit ZS1, so that in the following only the processes are related

Group of dialing memories, one or more control stations with one of the two central control units, with which zen-tions is assigned depending on the size of the group of participants. That central control unit ZSl is treated. Of course, for the purpose of information exchange and command exchange, it goes without saying whether the data transfer - the transmissions, dialing memories or places in the transmission line bundle B1 with the central control unit ZS1 - can help each other group. This is due to group rank and is only indicated in the header of the partial control unit TSt and the central control unit ZS 1 pelnetzwerk SK. For this purpose, reference is made to the intermediate lines given as an example by activating corresponding cores of the data transmission, which are designated by the transmission line bundle B1 as part of a scanning cycle on the part of numbers 1 to 6. In addition to the grouping, the central control unit ZS1 is mentioned about the allocation and connection, that the subscriber group device Ani is connected as an example in FIG. 1, depending on the type of the GT1 and GTm to be specified. Each subscriber group can be divided into subscriber sub-groups by means of the mediation process taking place and its priority. As order in the system of other mediation processes. An example is shown in FIG. 1 that the group GT1 could consist of sub-groups G1 (Gl) to Gl (n) in the same subscriber group GT1. For the 55 zen AVSx a common partial control for exchange rates ASt, the subscriber group GTm given as an example are assigned. This partial control also

Subgroups to simplify the display of no changes in state that are contained in a last look

shown. According to the division into subscriber groups driving can be determined, here too, the exchange rates GT1 to GTm and the coupling network SK are scanned accordingly one after the other by the central control unit ZS1, only one subscriber group 60 from FIG. 1, an information exchange with the central control unit. GT1 this breakdown is shown and the corresponding part takes place. If necessary, if the exchange rates of the group of the switching network is then designated N1. The other GT1 is used for establishing a connection to a subscriber part of the coupling network for the other subscriber groups of another subscriber group, and for the special facilities that are still to be mentioned is additional exchange of information with the partial control • to simplify the illustration because the subscriber circuits of the other subscriber circuits are not further elaborated and therefore designated with N. Required according to the stage of stake to which this participant belongs. The network part N1 is still divided into subscriber subgroups, for example by coupling the data transmissions divided into several switching network parts Nl (l) to Nl (n). line bundle Bl via the allocation and connection

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device Ani and the allocation and connection device Anm via the data transmission line bundle Bm and the part control TStm, which is not shown in FIG. 1 and is only indicated, under the influence of the central control unit ZSl.

FIG. 1 also shows that the exchange rate AVSx provides access to the exchange line ALx for the establishment of incoming and outgoing exchange connections. This official set AVSx can be connected to any authorized subscriber of the system and, if necessary, also to a cross-connection set QV leading to a subsystem via the coupling network part Nl (l), which is only shown in two stages in the present example, but can of course also be in three or more stages.

The represented dialing memory set WSx of the subscriber group GT1 can be connected to a subscriber circuit or an outside line record or a cross-connection set for receiving dialing information via the switching network. Depending on the type of connection to be established, this is a connection via the output 7 of the dialing memory set WSx or a looping in of the dialing memory set WSx, as is known for systems with a folded grouping. For this purpose, the dialing memory set WSx has two outputs 7 and 8 which are connected to the switching network.

The connection set VMSx of the operator telephone BFx is also connected to the switching network Nl (l) with two outputs 9 and 10. In this way, the connection set VMSx of the operator telephone BFx can be connected on one side to a transmission or an optional set and can be looped in in a connection.

Both the dialing memory sets WSx of each subscriber group, here the subscriber group GT1, is a partial control WSt as well as the interface sets, e.g. VMSx, a partial control VSt for connection sets of the operator telephones, which partial controls can also be connected to the central control unit ZSl via the data transmission line bundle Bl and the allocation and connection device Ani as well as further allocation and connection devices with other data transmission line bundles and partial controls.

If the coupling network SK is a mechanically operable coupling point, house sets HSx are provided, to which a sub-control for house sets HSt is also assigned to each subscriber group, as indicated in the drawing by dashed lines. On the other hand, if, as assumed in the present example, it is a switching network SK with electronic coupling points, for example thyristors, holding blocks, e.g. HS1, HS2 for the switching network parts Nl (l) and Nl (n) as well as HSn, HSS, HSx, HSy for the switching networks N and BK are provided, which also take over the functions of a house kit. The difference to the house kit is the different type of connection to the coupling network. The holding rates are divided into groups. The holding sets HS1, HS2 of the coupling networks Nl (l), Nl (n) are assigned a partial control system HStl, via which these holding sets via the data transmission line bundle Bl and the allocation and connection device Ani with the central control unit ZSl or via the data rail DS and one the further allocation and connection devices, e.g. B. Note with other data transmission line bundles, e.g. Bm, can be connected to other sub-controllers for the purpose of exchanging information. The exchange of information depends on the scanning cycle as well as on the value and the priorities provided for the handling of processes.

In the foregoing, only the subscriber groups with the associated exchange rates, dialing memories and interface records as well as holding rates and the correspondingly assigned data transmission line bundles Bl to Bm for subscriber groups have been discussed. In addition to these data transmission line bundles B1 to Bm for groups of subscribers, data transmission line bundles BSo and Bb are also provided for groups of special facilities and special transmissions, which are dealt with below.

For example, a data transmission line bundle BSo is provided for a group of special devices and transmissions. This group can be composed as described below. There are several conference connectors in this group, e.g. KV, assigned to which a partial control KVSt is assigned, which uses the data transmission line bundle BSo and the allocation and connection device AnS information with the central control unit ZS1 or via the data rail DS and one of the further allocation and connection devices information with a corresponding, other sub-controller. Furthermore, the group is assigned a number of monitoring devices, for example BD, for traffic monitoring and for testing during the establishment of a connection, to which the shared sub-control BDSt is assigned, which also exchanges information and commands via the data transmission line bundle BSo. Also assigned to the group are special facilities So, to which a common partial control SoSt is assigned, as well as special memory sets MS for multi-frequency code, if the system should be designed both for pulse dialing and multi-frequency code selection, to which the partial control MSt is assigned. In the system described, it is assumed that the dialing memories WSx mentioned are provided for pulse dialing and the dialing memories MS for multi-frequency code dialing. If only multi-frequency code dialing is provided in the system, the dialing memory sets, e.g. WSx, correspondingly only intended for multi-frequency code selection, and the memory sets MS are omitted. The memory sets MS can be connected as required for the dialing and, if necessary, code conversion of the dialing codes on subscriber circuits, exchange rates, cross-connection rates and the like. Furthermore, this transmission line bundle BSo can have a group of cross-connection sets QV or several groups of cross-connection sets, e.g. for different directional trunk groups, with each group then being assigned a sub-controller. The QSt control unit is assigned to the QV cross-connection sets. Furthermore, a plurality of data records D can also be provided for the data dialogue via the switching network N. Such a data record can be looped into a connection. A partial control DSt is assigned to these data records D. If a connection to the data system is required for the data exchange, special data records DM are necessary which have a special output to the corresponding data processing devices DVA for the purpose of a direct connection. In this way, the devices that are provided for exchanging information via the additional switching network (BK) can also be connected directly to devices and / or partial control devices of the subscriber groups in order to simplify the exchange of information and / or synchronization in parallel connections, in addition to the corresponding data transmission line bundles.

The data transmission line bundle BSo can be connected to the central control unit ZS1 as well as via the data rail DS and one of the other allocation and connection devices to other partial controls for the purpose of information and command exchange via a corresponding allocation and connection device Ans. The division of the coupling network between the group of participants GTm and the group of special facilities is not shown in Figure 1 for simplicity. It is clear that for this group of special facilities, a division of the coupling

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network according to the coupling network part N1 (1) pre-part controls for different groups of the same type can be viewed. but from only one data transmission line

At this point it should be mentioned that B can be built up for a PCM transfer pedal. In this system too, the method of supplying the data transmission line bundle would correspond to a speech path switching network SKI in accordance with the previously provided ring line. 5 participants in network parts NT1 to NTx

The special devices, transmissions and sentences that are divided, whereby care must be taken to ensure that each subscriber station of each subscriber group to each other, for example for the transmission of video signals, another subscriber station of another group via a special coupling network BK for broadband Can establish a connection in parallel and / or independently of the speech path switching network.

SK plant for the production of appropriate special connections. To represent this, an intermediate line can be symbolically fertilized. Several groups are grouped into one or 11 between part NT1 and part NTx of the speech path. Shown in the SKI implementation coupling network. Here too, the participation game according to FIG. 1 is shown only one such group. The mergroups each have their own exchange rate groups, electoral rate group parallel setting of the broadband switching network BK and pen, one or more operator telephones with the corresponding speech path switching network SK is, for example, in connection sets, as well as holding rates for the simultaneous establishment of speech path connections, see coupling points of the assigned part of the Speech and television connections to the same subscriber stations coupled to the SKI network. One of the groups can be known. For example, a special connection set QV for special

Each such group of connections that can be interconnected via the broadband switching network, for example for connections to the substation, is connected to the 20 system. H. Cross-connection traffic. 1 a data transmission line assigned to all subscriber circuits T1 to Txl of the different device in FIG. 1 Bb. The respective associated groups of participants GT '1 to GT' m are assigned a part of the same type of special equipment, sets and transmissions control TSt for subscriber circuits. Common sub-controls are assigned to each, official records of all subscriber groups as well as the connection via the data transmission line bundle Bb and via the 25 sets of records of all groups in this smaller system, this sub-control assigned to this bundle is assigned a sub-control which consists of a gene AnB and the data rail DS exist either with the central combination of a partial control for exchange rates and a control unit ZS1 or with one of the other allocation and partial controls for interface sets, whereby it is essential

Connection devices and corresponding data transmission - that the address line and line bundle existing in the sub-controls can be connected to one of the other sub-controls 30 for controlling the individual interrogation points for the purpose of information and command exchange, exchange rates and connection sets in the same data and address. This exchange of information and commands are compatible. In this way, depending on a sampling cycle, the part-determined program memory and processing parts can again take place as a result of controls and in dependence on the allocation and assembly, as explained with reference to FIG. 4

Connection devices in coordination with the central 35 will be saved. The electoral rates have their own priorities, control unit ZS 1. Assigned to the special unit control. These partial control directions are, for example, for each subscriber - for dialing sets the customer data memories can be assigned to the television provided with the appropriate authorization. Furthermore, all special connection sets are also devices TV, to which a common partial control TVSt is assigned a common partial control SVSt. Just as are assigned to a data processing system DVA 40 in the exemplary embodiment according to FIG. 1, the hold-connectable image output storage devices BP, to which sets H1 to Hxx a common sub-controller ESt a common sub-controller DASt are assigned. All sub-controls can use the common exchange rate set BV with a common same data transmission line bundle to give the information from the sub-control BVSt and, for example, about further special exchanges and commands, using auxiliary devices SG of a certain type with the corresponding common name of the central one Control device SPSt. This can be part of the SGSt. All these special facilities additional connection means and facilities LASP for test can, as mentioned, be assigned via the data transmission line Bb with control and monitoring. All special devices are connected to the central control unit ZS1 or with other sub-control data transmission line B for the purpose of information and command exchange, for example the special control SdSt can be connected to get even. so faiis with the partial controls to issue information and commands

Replace the in connection with the data transmission line. Each sub-controller can be linked to the so-called customer data memory for the purpose of exchanging information and commands, which is only available once per system, and can also be coupled with the other sub-controller, for example also become a pelt. The line sub-control can be assigned as the allocation and connection device, and the part of the subscriber-specific information that is used for the purpose of the data transmission line bundle serves as part of the BZT assigned to any control for subscriber circuits. Time must be changeable to record. Such a customer is in the special control unit SdSt

Data storage can, for example, authorize additional functions, such as B. intrusion, call markings, the speed dial information and other forwarding and the like, the participant, the special ragging, for example in connection with so in the basic version are not available. The special tax call forwarding and the like included. This customer base checks the authorization and, if there is memory, must be reprogrammable from the outside in order to be able to change corresponding special connection requests based on, for example, the authorization, the speed dial number, the special authorization lying with the central control unit call forwarding address and the like. In the SPSt the further control for the connection establishment. 1 is this customer data memory KDS but the central one. Only if there is no such special connection, control unit ZS1 or ZS2 is assigned to it. So if the traffic is normal, the control of the connection

On the basis of FIG. 2, it is shown that a system with a manure production from the central control unit ESt can be used to expand up to 120 subscriber connections from several. Such special treatment by the

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Special control unit also takes place if an dialing code has the same basic structure, dementia assessment is required. This use of the special control unit also has the same components and has the advantage that new features have been introduced into the data and address line bundle . B. An in FIG. 4 and also changes with regard to the program flow must be taken from this bundle An to the respective data transmission line. The data storage of the special bundle, e.g. Bl in Fig.4 same interfaces. Control unit is therefore variable with a This grants the advantage that data storage is equipped with the same components. The basic control systems and the same interfaces contain a variability for the sub-identifiable sub-controls in their basic system sizes. A partial control system runs a “special traffic” process. If the status is special, for example, the tasks of the register function, i. H. traffic, only one character is stored in the sub-controls, 10 dialing codes, connection numbers, authorization preprocessing. All received signals, connection path coordinates and also the connections are then reported to the special control unit and binding controls are included. The central control unit receives the commands from the special control unit. In such a case, the special control process of establishing a connection with the partial control unit alone takes the information required to establish the connection. Processing and the issuing of commands for the connection 15 There is always only one partial control position at a time. This has the advantage that the partial control is also leading. The access system of the partial controls to the lines newly recorded as peripheral control units without program change and assigned devices, transmissions or sets for supplementary settings, and for the indication of the switching states of the performance characteristics and the commands resulting therefrom is in the partial control integrated into it. The actual can work. If additional hardware is required in the peripheral control unit to carry out additional data exchange between the partial controls and the central features, the central control unit requires, for example, special sets for special requests, a first sampling clock. A partial control can be sufficient For these special performance features, special orders are provided to other sub-controls or to the central der controls, which also give via the common control unit, and these orders are buffered in an output-efficient data transmission bundle B with the sub-controls. The central control unit scans these for the purpose of issuing commands for the initiation of coupling buffer of the various partial controls of the processes. One after the other in the first bar. Will be in one

On the basis of FIG. 3, it is to be shown which further buffers of a partial control system a job is carried out — simplification in a system according to FIG.

Figure 2 can still be made if the number of 30 gen uncj evaluated. If the transfer data for subscriber connections per system is reduced even further, another sub-controller is immediately activated in the inputs, for example up to a maximum of 30 subscribers. Inscribed in such a memory of this sub-controller. On the other hand, if the system overview is largely the same as that of Figure 2, an order for the central control unit itself, the i.e. the system up to 120 participants. The difference is that the order is processed immediately and the result, for example essentially, is that in this case the sub-controls 35 issue the command to the relevant peripheral sub-control for subscriber circuits, dialing blocks and holding blocks. Then the scanning process of the partial

a common control unit is combined, control continues. This results in the advantage that the central control unit itself is not associated with any storage of orders, even if the customer data store is associated with this partial control unit. Here too, only one data transmission line and memory lists are provided for their ranking, as with other bundles of services B '. For the special connection sets 40 centrally controlled systems must lead.

and also for the special functions there is a special part control. The part control itself works internally with another one. internal, possibly slower clock due to the

In the following, the input and output control will be discussed in more detail on the function of the various clocks. As an example, the particles are available for each control unit.

Control for the holding sets briefly described with reference to FIG. 4. The input and output memories of each partial control are included. From the preceding description it is already clear that the shift register, which is a successive processing of the. ensure that the specified partial controls for the larger system are valid for individual orders. It is only possible to buffer an order per input or output memory in accordance with only sentences and facilities of the same type. However, depending on the size of the system, you can save. The use of the shift register thus ensures that certain sub-controls in smaller systems under 50 decouple the various sub-controls under certain conditions and data exchange. A synchronization differently - essentially only that whose program and data-programmed partial controls are not necessary. As long as they fit together in kete. By assigning equipment to an input or output memory, an intermediate job of the same type to certain sub-controls is saved, no new one can be saved. Depending on the program and data packets of these controls, it must be clear whether it is a submission or a submission, as if these are only summarized centrally for the receiving order, all facilities have to be of different types at certain times be asked again whether the particular memory has also become free for the different users through simple variability. In this way, the system sizes can be obtained. Since subscriber groups are also easily simplified and standardized, interfaces and groups 60 for each subscriber group are identified. As an example, FIG. 4 briefly describes the partial control for devices of the same type, for example office transfer holding sets. This partial control, which is provided in terms or official records, can be used to ensure that FIG. 1 for the speech path switching network SK and that, due to the corresponding size of the groups, subscriber group GT1 is referred to as HStl, can be secured until a partial control is only so A lot of setup information and commands via the data transmission lines are operated in the same way, as in the case of an error 65 bundles Bl fail, for which this partial control may input memory. This eliminates the need for equivalent switching measures. ES contains. The output memory AS is temporarily blocked for the output of information on the data and, in the event of an error, the relevant sub-control of the transmission line bundle. All different partial controls. The data transmission line bundle B1 consists of

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for example, from two control lines Stl, four output lines, invisible for the information and commands to be processed and gene ADI, four input data lines EDI and, depending on the number of hardware switching means to be controlled, in the connected units to be controlled and the coding used for transmissions and sets.

from a number of (n) address lines AD. The matrix M1 and M2 shown in FIG. 4 can also

This data transmission line bundle B1 is, as referred to in FIG. 5, as the work field. The intersection points or FIG. 1 shows that in the case of a large installation, matrix points in such a working area are provided for all partial controls of a group of participants via time. len and column addresses controlled. The control of the other hand, the input memory ES and the output lines are carried out via control amplifiers, which are designated in FIG. 4 with memory AS with one of the sub-controls individually assigned - A A1, A A8, A A15, A AA16. The control of the data and address line bundle ADI is connected; over 10 of the columns are carried out via the evaluation amplifier, which in the hardware designates the device for controlling individual actuated FIG. Means, such as relays, signal switching means, are. In this way, either the crossing or crosspoints and the like can be controlled. On the other hand, matrix points can be addressed individually or can also be switched by means of a corresponding matrix - only one matrix row or only one matrix column.

15 can be queried, which can issue specific commands. FIG. 4 shows how the crosspoints KP and NEN, such as the selection buttons on the operator remote holding switch KL to Kn, are controlled. The keys of the switching centers can be queried via the switching states or the specific switching states on the switching matrix M2, switching devices characterizing the space. by scanning their switch positions. The is too

The matrix M1 shows, in terms of coordinates, in dependency matrix M2 how signal switching means can be actuated by the coded 20 arriving via the input memory. The keys are a query of the addresses of certain matrix crossing points, to indicate indication points at the switching centers, so that, for example, as indicated in FIG. 4, this is a coupling for the output of information, for which purpose a starting point KP, the circuit of which is also provided in part in the amplifier EO, which stores its information on

Figure 4 is shown to operate. Passes on instead of a crosspoint output memory AS.

A relay can also be connected via a toggle switch Kl 25. Scanning principle (but with a different clock than the central one

The fact that the partial control for the setting and shark control unit) works so that no queues can arise separately for the coupling points of the speech paths. This also simplifies the processing, and the quick setting and testing times of the electronic sections in the structure can be simplified. By paying off the crosspoints seen without great difficulty, 30 phases are also obtained in a simple time evaluation. This is assumed that the partial control during this sampling cycle is intended for the partial control alone and does not take on any other tasks. independent of the other sub-controls and the

Central control unit on the common data and address line bundle.

On is a control part CPU of the part control HStl, in which the sampling cycle in the part controls can be much slower.

the programs for the execution of the processes in the part 35 mer than the sampling cycle in the central control unit. The control can be processed, switchable. The required scanner is the device for information processing Programs are also assigned to the common CPU.

Data and address line bundles picked up from the assigned program memory PSP. If for the control and from the above it is clear that for the formation of switching through certain crosspoints or the switching on of 40 different construction stages of a private branch exchange, depending on the direction of certain relays, different information such as system size depending on the number of activation rights to be controlled, for example, must be required These are retrieved from the devices and the amount of information to be exchanged in the data storage DSP by addressing one or more sub-control devices of a specific storage location and queried subscriber group without changing the input and output, depending on the time unit. In principle, each sub-control is constructed in a similar way to 45 trimmed parts of the data transmission line bundle as the HStl sub-control, the difference can only be summarized.

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4 sheets of drawings