DE1801658A1 - Circuit arrangement for telecommunications systems, in particular telephone switching systems, with central and individual devices - Google Patents

Description

"Circuit arrangement for telecommunications systems, in particular Remote exchange systems, with timed and individual Devices"

The invention relates to a circuit arrangement for telecommunication systems, in particular Pernsprechverraittlimgsanlagen, in which between a central device, z, B "a Zentralst euerY / Erl :, on the one hand and in their type different individual devices, such as internal connection sets, telecommunication transmissions," trunk transmissions in private branch exchanges, Registers, electoral receivers and the like, on the other hand correspondingly different types of information, for example V / ahj.-pulse series, control criteria and the like, can be exchanged.

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In telephony technology are numerous in recent times such switching systems with central control are known

how become. A large number of individual devices, / ζ.B, connection sets for internal and external connections, Wahlenip receivers, registers, adjusters for couplings or '2 lines of the same and the like, is assigned a common device, also referred to as a central control unit, which is assigned to the individual devices represents the exchange of information and for w, this device the greatest part of the logical Iiii'oi'r: accepts Uitioiioerarbeitung, this centralization of the logical function of a Yermittlungsanlage can be known, the Ge including expense in economic / else substantially limit '.'. Changes to the mode of operation can also be made very advantageously in such switching positions, because corresponding circuit changes only have to be carried out at a central point.

fe In centrally controlled switching systems, circuit technology effort is largely centralized = the individual devices are designed in such a way that they require as little effort as possible. Their operating speed is therefore relatively low, even when adapted to the circuit conditions of lines and to shaft members drawn into connections. The central control, on the other hand, has a much higher working speed, because it has to work together with all individual devices one after the other ,

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Even the extent of yours depends on your speed of work Working area: the faster your functional processes are calibrated the more individual devices a single device can copy Operate central control =,

In the Zcit requirement for each functional sequence of the central control go the information recording, the logical Information processing, and the delivery of information a »Zur Acceleration of the functional processes of a central control unit By equipping it with correspondingly fast-working content, only the time required for information processing can not be used limited v / ground »On the other hand, there is a need for information ingestion and delivery of the person the individual devices with which the central control is exchanging information. To reduce · the time required for the functional processes of the central control vmid.cn between you and individual devices Buffer storage provided, on the one hand with deirjZentralsteuerwerk and on the other hand, carry out an information exchange with the individual devices, the latter on the one hand the relatively high operating speed of the central control unit and, on the other hand, the relatively low operating speed of the respective individual device corresponds to O

Regarding the above, reference is made to MS 1 166 285. The individual Devices here consist of coupling groups of a coupling

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field. Each coupling group is assigned a buffer memory. It. are two types of coupling groups, namely subscriber coupling groups and trunk switching groups are provided. Accordingly, there are between the buffers and the central control two types of information trunking are not considered " Depending on their assignment, the buffer stores are either subscriber switching groups or trunk switching groups to one of two main information lines Can be switched on with the aid of individually assigned gate circuits. These gate circuits are in accordance with the two types of coupling groups via two separate control multiple lines, which are next to the Information bus lines are provided, controllable from the central control, so that only a single one Buffer storage on the information collecting line leading to the central control can be switched on-

A salient feature of the known arrangement is therefore that the address of the individual device to be connected to the central control in each case in an over the control manifold from the central control unit is the control command issued, whereas the type of the individual in question Device is not expressed in its address, but in the use of the respective control multiple line and information trunk, via which the information transmission is prepared and carried out »

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In addition, it should be borne in mind that the other individual devices in the known arrangement, namely subscriber line circuits (subscriber circuits), connecting line circuits (connection sets for internal and external connections) and registration registers (usual reception registers) contain storage media, for the central control can not take up the information that arises in those at will, but it must also control the exchange of information with these individual devices so that it can be carried out gradually. Of course, it must also be assumed here that just as the switching network is made up of many individual devices (coupling groups), several connection sets for internal and external connections, several registers, etc. are provided. The principle outlined above also applies to these individual devices that in the known arrangement the address of the individual device to be connected to the central controller is in a control command issued by the central control unit via the control multiple line, whereas the type of individual device concerned is not in its address , but rather in the use of the respective control manifold and information collecting line, through which the information transfer is prepared and carried out

Since these individual devices are, among other things, those from which the central control unit can record information the information not only differs

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according to their content and the address of the individual device, from which they originate, but also according to their type: E.g., v / earth on the one hand from registers dialing identifier and on the other hand from connection records received in them offered to the central control server. This information is regarding the exeraplares of the individual individual device based on its address, but with regard to its special type (connection set, register) only based on the specific Information multiple distinguishable. The several Information multiples are therefore in the known arrangement required because of the necessary differentiation for the central control unit,

The task now is to reduce the amount of memory and To restrict connection means between the central control unit and the individual devices and to standardize them by type, both directly and due to a comprehensive compatibility of these means, their degree of utilization to increase. This is achieved in that one from the central device to the various types of information exchange individual devices running central.

Information line is provided, and that for individual connection of the individual devices to the central information line serving addresses of the individual devices of a telecommunications system are arranged in groups «and that over the central information line through the same information

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different messages (informal; ions content) can be transmitted that for the central device on the basis of each Information attached to the address not just its assignment on the respective individual device, but also according to the group membership of the address, the special type the information is recognizable "

According to the invention is used to exchange information with the different individual devices a common device-neutral information line “For the correct interpretation of the Different types of messages, which are transmitted in the form of the same information, are used by the respective address of the individual device, which can be determined in various ways and communicated to the central control unit: A scanning device (scanner) can be provided, which checks all individual devices one after the other to see if whether there is a need to connect the individual device to the central control and in if necessary, transmits the address of the individual device to the central control unit. On the other hand, it is also possible to provide an identifier that picks up the activation incentives from the individual devices, among possibly several makes a selection and transfers the address of the selected individual device to the ZentTilsteuerwerk. It is also possible to connect the individual links to the central control unit to other elements, and afterwards

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such a connection the "relevant individual
Always cause the device to first transmit its address to the central control unit via the information line. Furthermore, it is also possible to provide an identifier in several connection devices, and the several connection devices, each of which is assigned to a group of individual devices of the different types, by means of a cyclic scanning device arranged alongside the central device
Subject to examination »In this case, the address of the
individual device formed in the connection device and transmitted to the central control together with the information »

However the address of the individual device is determined and transmitted to the central control unit; According to the invention
The central control unit not only records the address in order to record the assignment of information to a specific individual device, but also evaluates the address so that the type of message received is determined from its group membership, ie, in
the way the corresponding information is interpreted
nut. No special prior information needs to be introduced for this, but due to the group assignment of the addresses, these can also be used as a means of differentiation »

The diversity of the messages is not due to theirs
Characterized, but can also be based on different forms, e.g. non-coded characters, decadic and binary coded characters

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To relate signs and the like «

In the drawings, FIGS. 1 and 2 is an exemplary embodiment the invention shown only in components that contribute significantly to their understanding, but on which they by no means is limited.

In Pigd is an overview for a telephone exchange according to the invention given. Several groups AF1 to AF11, APP etc. of individual devices are indicated. These Groups are hereinafter referred to as fields of work. Further are individually assigned to the work fields, which are referred to below as work field control units will. Among other things, they control the connection of individual devices, e.g. ST1, RS1, VS1 uflv /. to a transmission line U11-one first type, which together with a transmission line U2 a second type represents the said central information line. This is in view of the fact that several Work field control units are provided, branched further, but this is not discussed in the following.

The work field control units AS1 to AS11 of the Yermittlungsanlage are on the transmission lines of the second type U2, the

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forms part of the aforementioned information line, with two central devices, namely the central control units ZS1 and ZS2 in connection. The arrangement of two in "parallel operation working central control units serves in a known manner both to increase the operational safety of the entire Networking system with regard to the possibility of a malfunction or operational interruption of a central control unit, as well as error monitoring by comparing two of two different central control units independently of one another information supplied. Since this is not essential for an understanding of the invention. is predominantly below there is only talk of a single central control unit »

The part of the central information line formed by the transmission line U2 of the second type runs to the central control unit (ZS1 and ZS2). Sonrite; the individual devices and the central control unit are connected via a device-neutral central ψ information line. This information line runs over the work field control unit, which contains, among other things, a buffer and Oodcunsetztineinrichtung »The central information line is divided by the work field control unit into a transmission line of the first type U11 and a transmission line of the second type U2.

The work area control unit also serves to determine the address of an individual device, which is used in the event of an information

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Transmission to the central control unit of the information is sent in advance. This address indicates the place of origin and a very specific individual device - a piece of information to which this "is related and for the correct one logical processing by the central control unit must continue to be related: The central control server must e.g. indicated which of the multiple elective sets, e.g. WS1, electoral information have arrived so that the right subscriber receives the right - selected by him - connection.

Via the transmission line U2 of the second type in the central control unit Incoming information is always accompanied by an address. Include the information itself Messages of various types depending on what type of individual device they come from. These types of devices are later described in detail. Different messages can be partly based on identical information be transmitted. So that they are distinguishable and no additional criteria to distinguish the transmitted information needs to be added, firstly, the addresses of the individual devices according to the types of the various individual devices in address groups and, secondly, the central control euerv / Erk, e.g. ZS1, equipped with an address evaluator, e.g. AW1. This evaluator is not used to receive the information from both

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given addresses of the individual devices, but only to identify their group membership.

The information cannot differ in terms of its nature only by the character of the message, e.g. dialed digits or line identification, but also by its form, e.g. non-coded or decadic or binary coded characters. These two differences are what the Zen | t central control, e.g. ZS1, with the help of the evaluator, e.g. AWI, recognizable from the address. The central control unit ZS1 gains a criterion on the type of message received via the circuit av / 1/2, receives the one transmitting the message Information about the circuit awl / 1 and the address of the individual device attached to the information via the circuit awi / 3.

In the course of the further description, the individual circuit ^ units of a switching system according to the invention, so far they are shown in the figures, described in detail, in preparation it should be noted that in addition to the addresses individual devices ^ which are divided into several groups according to the type of individual devices, including addresses the work field control units are provided with the former Addresses must not be confused. These addresses of the work field control units are related to the invention no immediate relationship.

To the transmission lines of the second type are also.

- 'Mi data transmission devices D1, D2

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etc. These connected form each rait a second, individually assigned data device, z. B ₀ D1 ', and a connection line for data transmission links, the individual remote work areas, Z ₀ B ₀ API', enable the exchange of information rait the central control units ZSI and ZS2 ο The data device D2 belongs to a second data link and a further, not shown remote work area «Es It is also possible to provide a common data path for several work fields located at one and the same remote location.

The work areas each consist of a large number of different types of individual devices. "Among these are U ₀ a _o in the coupling stages A and B of the three-stage coupling field, the coupling groups composed of individual coordinate couplers, for example" B ₀ KG-1 to KGn, KGf 1, KGf2, etc. " understand = each coupling group, e.g. B = KG1 is assigned its own control, z = B = ST1, which executes setting commands received from the work area control unit. In each case a coupling group with an assigned control forms an individual device. Individual devices are also the entirety of the couplers of the coupling stage C with their control STc. It is also possible to combine these couplers in a work area in several individual devices with their own controls. B = VS1, for within the work areas Ai ¹ I to AP11

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■ formed switching systems to be switched through connections, also relay set, e.g. RS1 and RS2. the connecting lines (Local or long-distance lines) to switching systems at other locations for incoming and / or outgoing connections are assigned individually. These individual devices also include dial receivers. e.g. WS1, with which participants be temporarily connected to record the voting information they have provided, as well as early coupling groups, e.g. KGv, and preferred single-stage couplers, e.g. Kt, each with its own control, e.g. STv and STt, are equipped. These preferred coupling groups and couplers have the larger and smaller selector star switches known from conventional switching systems! corresponding meaning. - In addition, subscribers not shown can individually lo subscriber line circuits or arranged in groups as individual devices.

All of these individual devices in a field of work. e.g. AF1, are available via a network of transmission lines of the first type, e.g. TJ11, with the relevant work area control unit, e.g. AS1, in connection. ! These transmission lines of the first type, together with the above Transmission lines of the second type U2 represent the central information line according to the invention.

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Tragungsleitimgen the first and the second type are each branched. For the purpose of easier understanding one can assume that the said central information line from the section running between the central control unit ZS1 and the work field control unit AS1 the transmission line U2 of the second type and out of the transmission line U11 of the first type is composed, which the latter is looped to all individual devices of the work area AF1. As detailed later on the basis of Pig.2 is explained, the central information line in the work area control unit AS1 runs both via storage means, as well as via connection means. However, this is a special feature of the exemplary embodiment of the present invention Invention and therefore not essential for the latter Meaning.

Each individual device contains connecting means that can be used by Work area control unit are controllable. For this purpose, if the requirement of a connection in the individual device is present. of this one

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Activation incentive issued to the work area control unit, which is identified here, and for issuing an activation command leads to the individual device in question.

The coupling switching means of several working fields in one place to form a single common switching network, the causal relationship are only for reasons which will not fe with the grouping of the switching matrix (Z ₀ B. reliability, extensibility and embossing the traffic load) is divided into a plurality of areas of responsibility of several working field control plants is "The switching network formed from the coupling switching means in the coupling stages A ₅ B and C of the work fields Ai ¹ I to Ai ¹ H corresponds in its design to that, the main subject of the DAS

(S 110291 VIIIa / 21a3) corresponding patent application. This switching network is made up of several couplers, preferably three coupling devices connected to one another via intermediate lines

^w levels built; Subscriber lines, connection lines '' and all inputs and outputs of switching elements necessary for connection establishment and connection monitoring per connection are connected in the same way to the inputs of the first coupling stage (Figo 1; A); The outputs of the couplers of the first to the penultimate coupling stage, which are individually connected to the inputs of the couplers of the respective downstream coupling stage, can be interconnected in pairs in this subsequent coupling stage.

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like "coupling field shows and describes the MS 1 2; J5 379 o The special characteristic of a peculiar design of such a known coupling network ordered according to the above mentioned statement that the outputs of each of the couplers can be reached from a switching network input via at most one single connection path As a result, when searching for a route from a coupler input by selecting one of these outputs, the route to be switched through via the coupler for the desired connection is already clearly defined. Nevertheless rounder · erder- two switching matrix inputs or alternatively via different routes verDunden together v / by respectively by the two switching matrix inputs forth ever more common coupler _outputs;.. more than once every two of the last coupling stage in different fields ange'iöi-end and jewexls a iSwischenleitu ng fe. ^: Jt connected coupler outputs are accessible ₀

The working fields, Z ₀ B> AF1, each have three coupling stages, the couplers of which are connected via intermediate lines in such a way that one coupler output in each of the first to the penultimate coupling stage A and ¹ B has one coupler unit second to last coupling stage B and 0 individually fixed 'ingeorcinet is »The outputs of the couplers öer coupling stage C are i: .i all Arbeitsöfeidern λϊΊ to AF11 and AFF at least partially unconnected» In der.'. Fields of work AJ? 1 to 4FH

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is a part of these exits over from work area to ZLC intermediate lines leading to the work area individually interconnected in pairs

The two adjacent central control units ZS1 and ZS2 are each assigned a program memory PS1 and PS2., The central control unit takes t from the program memory according to which program one from a work field control unit The information given and recorded in the central control unit is to be processed »The two central control units a common multi-part information memory ZJS is also assigned, its entire storage capacity both central control units are available as required »

H etwork of transmission lines of the second kind U2 is a device PS for input and output maps of information supplied * through which the central control stations can be reached ZS1 and ZS2 immediacy bar "With the help of the device PS is it possible the operation of Zentralstenerwerke to check and to change the memory contents of the program memories PS1 and PS2 (save and / or save).

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Furthermore, the network of transmission lines is the second Art is assigned a work area control unit ASE, which is used in Fault in one of the work area control units AF1 to AF2 are temporarily switched on in its place to replace it can The work area control units are therefore one below the other uniform and mutually interchangeable

In 'Fig * 2 further details of a work field control unit -AS1 shown in Fig. 1 are shown . B ₀ U11, with individual devices, for example B _{0 of} the control device S21 of the coupling group KG1, and via transmission lines of the second type U2 in connection with the central control unit shown in FIG. The Arbeitßfoldsteuerwerk shown in Figure 2 can be of the individual members, for. B. from the coupling group control S21 requested. With the help of the identifier Jd, the Arbeitsfelösteuerwerk is able, under several simultaneously present connection incentives, which via request contacts, 'ζ »B ₀ to. switched on v / earth, select one and issue a corresponding switch-on command to the switch relay corresponding to the switch-on incentive, e.g. "B ₀ Mo." , Z ₀ B ₀ , of the individual devices, e.g. B ₀ ST1, in

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to provide a coordinate-shaped matrix »This can the number of request circuits is significantly reduced at least twice as much the square root of the number of individual devices operated by a work area control unit. The connection relay, z. B, Mo, the individual devices are in one control matrix extending across all individual devices.

With the help of contacts mo of the relevant connection relay Mo, both transmitting switching means s and receiving switching means E of the switching matrix controller SH are effectively switched. At this point it should be pointed out that the transmission switching means s and Erapfangssehaltrittel E of the coupling group control ST1 are each provided several times, and that information to and from the work area control unit is transmitted over the transmission line of the first type U11 with the help of a parallel code the transmission lines connected to the transmission switching means s and receiving switching means E are multi-core = all of the information to be transmitted is simultaneously on the cores of the multi-core transmission line TJ11 "Since on the one hand the transmission lines of the first type, e.g. ₀ U11, do not extend over long distances , and on the other hand, relatively cheap transmission and reception switching devices can be used, because they meet the speed requirements for the use of the parallel code transmission method

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Information transfer is fully sufficient, the relative large number both of the circuits of the transmission lines of the first type, as well as the sending and receiving means for the connection and for the transmission of information, however, there is no unfavorably large circuitry Expense represents =, These receiving and transmitting switching means are electromagnetic relays or, in the present case, Contacts from them “However, it is also possible for this to use other equivalent switching devices,

In preparation for a description of how the Work field control unit are first of all some definitions of terms given ,, ΐ / ie from the explanations above can already be seen, information is sent from the individual devices to the central control unit as well Transferred from the central control unit to the individual devices, the work area control unit is used here as an intermediate link. The transfer of information from an individual link to the central control unit is as follows always referred to as "reading" »The reverse transfer of information from the central control unit to an individual device is always referred to as "writing" accordingly the criteria "read" and "write" are formed in the work area control unit always educated; if there is a requirement on the part of

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of an individual member, z ",. B ₀ from the coupling group control SI1 via the request contact, and v / enn all switching processes of the previous functional sequences have been completed« If, however, there is no such request from an individual member, the criterion " be formed "that brings the willingness of the working box control plant expressed to include information in the Z _e ntralsteuerwerk gegebenen- | if available) and transfer it to this field of work controller are ο

In addition, the pail can occur that neither one There is a request on the part of an individual member, nor that the work field control unit is ready to provide information to record. This operating state exists when an Arboitsfeldsteuerwerk is processing information is not finished yet »The work area control unit is in this Pail ready for any information exchange with the central control unit. In the .work field control unit the "blocking" criterion is formed.

As can be seen from FIG. 1 and as already described ', two central control units are provided. Accordingly the transmission lines U2 of the second type are also provided in duplicate. Furthermore, in the work area control units Facilities and circuits that are responsible for the information

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serve transmission, also partly provided twice = This is not shown in FIG. 2 for the sake of simplicity = there are also comparisons that are not shown at various points arrangements provided »This makes it possible to ensure the correctness of the information transfer and information processing to monitor. Furthermore, it can be ensured in a simple manner that if a fault occurs at any point the central information transmission path the operation of the switching system can still be continued =, · Since these advantages of duplicating central parts are known per se, this duplication is in the exemplary embodiment only reproduced in some places =

From the central control unit ZS1 runs to all work area control units a common. Transmission line U2 = In a cyclical sequence, it asks all work field control units one after the other depending on whether the criterion "Read", "Write" or "Block" is present »Everyone instructs this Work field control unit an interface device GA on = This interface device GA is an address receiver AE assigned So now with the cyclical query of the .WorkingIoLd control units by the central control unit only a single work area control unit switches on, each connection is activated by sending the respective address * of the respective work field control unit from the central control unit initiates »This address transfer from the central control

* ■ (This address must never be combined with the im ei ^ ?. elT} e? T be ^ ciir.-ieber-en addresses of the individual devices be confused)

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work to one. Work area control unit for temporary connection the latter to the transmission line U-2 of the second It can have happened in different ways. possible, a separate Adrcss.enleitung the transmission line U2 to be assigned to the second type “The central control unit sends for the required duration of the connection, the address of the relevant work field control unit from »Beginning and. ^ The end of the connection are in a simple manner by beginning ' and the end of address transmission via the address line

On the other hand, it is also possible to transfer the address of the relevant work area control unit that is to connect to the transmission line of the second type or switch off from it via this yellow = the address recipient of each work area control unit must be permanently connected to the transmission line U2 of the second type » W The activation and deactivation of the work area control unit by soinc AnschaltGcinrichtung GA is always initiated by the central control unit in this case that the address of the relevant work area control unit with an additional criterion "connection" or "shutdown" on the transmission line U2 of the second type from the central control unit · All work area control units are sent ο For this purpose, it is ensured that the addresses cannot be confused with the respective additional criterion. the rest to be transmitted via the uuei'trs & un ^ pO line U2.

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Information ο Only the connection device of the relevant Az'beitsfeldsteuerwerkes reacts to this in the erv / ünschteno Way"

If the central control unit initiates the connection (or / _or disconnection) of a work area control unit to (or from) the transmission line U2 of the second type, only the address receiver of the relevant work area control unit reacts and controls the coincidence gates G-16, G17, G-18 and G19 of the connection device GA open (or close) "

The criteria "read", "write" and "block" are used in the Sequence control AB of the work area control unit formed; the "read" criterion is set via output L of the sequence control · AB and the "write" criterion are output via output S from the sequence control. The "blocking" criterion consists in the fact that the two criteria "read" and "write" at the same time v / ground “But it is also possible that "Blocking" criterion due to the lack of both criteria To identify "read" and "write" or to provide a third signal circuit for this purpose.

These criteria "read", "write" and "block" are offered to the central control unit. Whenever the central control unit The connection of a work field control unit to the transmission line U2 of the via the connection device GA second kind, it receives one of these three criteria,

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Purely the transmission of these criteria can be used by the transmission line U2 the second kind of special criticism will. But Rs is also possible :, these- criteria dem To offer zontralsteucrwork itself over the transmission line U2 of the second type.

In FIG. 2, also one of the two Enclgeräte indicated I) a Datenübortragungsstrcckc, V ^r ie a us "ig" 1 .hervorgeht, it is possible Arbcitsfoldsteuorv / erke, for example, the Arbeitsfeldstoucrwcrk AFF from Zentralstcuorv / ERK her remote control ', for In this case, it is generally advisable to include a data path in the branch of the transmission line U2 of the second type leading to a remote-controlled work field tower, the terminal devices of which are denoted by Di and TjV in FIG Invention and is therefore not described further in detail here ο

If the "writing on" criterion is now present in a work field control unit, a corresponding criterion is transmitted to the central control unit ₃ as soon as the central control unit initiates the connection of the work field control unit via its connection device GA in the manner already described. Has "-ν das Zenti-alst.juerv / orlc in soineiu information memory a to the relevant. Arboitsfoldstouerv / Erk to transfer-

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information carrying stored, so it is now, however, takes its transfer to the respective Arbeitsfeldsteuerwerlc on further described in detail below V / else before "is no such information is present, the Z causes _e ntralsteuerv: erk in the manner described in that the working field controller by its connection device GA is switched off again from the transmission line U2 of the second type.

if, on the other hand, the "blocking" criterion is present in a work field control unit, if the central control unit causes this work field control unit to be switched on, the central control unit causes the relevant work area control unit to be switched off in the manner described, regardless of whether or not there is information to be transmitted from the central control unit to the work area control unit not ₀

If, on the other hand, the criterion "read" is present in a work area control unit, it is activated when the work area control unit is switched on also transmitted to the central control unit via gates G15 and G17 ,, Then the central control unit a criterion back to the work area control unit, which is the transmission of the relevant information from the work area control unit via the transmission line U2 to the central " Control unit initiates. The information is presented in several

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cuts transmitted »Each piece of information is separately initiated and confirmed by special criteria »This and the section-by-section information transfer is explained in more detail below »

Each piece of information is subdivided into several pieces of information. The recoding in the work field control unit is used to adapt the information transmission on the transmission lines of the first type, e.g. .B ₀ U11, in the parallel code to the information transmission on the transmission line of the second kind U2 in the serial code _o The information on the transmission lines of the first type by means of electromagnetic relays, and on the transmission line ψ of the second type with the aid of electronic Schaltraitteln, z. B. Transistors, transmit «The high operating speed of the latter not only serves to reduce the transmission time on the central transmission line U2 of the second species, but also enables information to be transmitted in the aforementioned series, which means that only a few transmission channels are required. On the other hand, the information is transmitted over multi-core lines via transmission lines of the first type

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extend over only relatively short distances and do not cause high costs due to their multicore structure, suitable transmission times can also be achieved with electromagnetic relays or equivalent switching means, i.e. advantageously cheap switching means, due to the transmission of information by means of parallel code. Further, since the tibertragungsleitimgen of the second type extend the aid of a data transmission path over relatively long distances, z "B ₀ the radius of a large city or a Knotenaratsbereiches, can because of the use of electronic transmission and reception switching means whose switching time by the Paktor 4-5 , Powers of ten is smaller than that of electromechanical relays, a serial code transmission method that works slower than parallel code transmission methods is used for information transmission, which advantageously allows the effort for transmission lines TJ2 of the second type to be reduced considerably.

It has already been stated that the information is subdivided into several sub-organizations, the transmission of which via the transmission line U2 of the second type is carried out in sections with the aid of controlling criteria. The transmission of information over transmission lines, Sc. B ₀ U11 | of the first kind, with a parallel code

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Transmission process carried out »All partial information are simultaneously via the multi-core transmission line 1111 transferred to the work area control unit. In the information store JS is for each of 4 pieces of information a part of the memory JS is provided: JS1, JS2, JS5 and JS4 ° Likewise, in the command memory BS is for each of 4 partial information ■ a part of the memory BS is provided: BS1, BS2,

BS3 and.BS4o The different names of Inforfe raationsspeicher JS and instruction memory BS also means that the central control unit in a pallet is about "readable" Information and in the other Pail about "writable" commands acts. These terms are retained in the following *

Any piece of information consisting of several pieces of information and any command consisting of several pieces of information is for the transmission on the transmission line U2 of the second type supplemented by a length specification and an address *

* Before an information or command is transmitted, the length specification is transmitted first »It states the quantitative extent of the information or command that is subsequently transmitted. Can their Gesaratinhalt instead of four partial information or sub-commands expressed in less, the information or command transmission or less Teilinforiuationen "!" Oilbcfchl ^ beJohrankt · "■ * Due to the previous length specification of the respective recipient knows and-although the respective work field constant or the central

** (This concerns ea addresses of individual devices j they must not be linked to the addresses of the work field control yards be confused.)

909830 / Q8T6

Control unit, when the respective information or command transmission will be finished.

In addition, every such transmission is accompanied by an address in advance. These are the addresses that designate the individual devices and that are not confused are allowed to address with the Arbeitsfeldsteueiv /. With such a Transmission is always indicated beforehand by the address from which individual device information is received comes or for which individual device a command is intended.

It has already been stated that each work field, e.g. AP1 each includes several types of individual devices, all with the assigned work area control unit via the corresponding Transmission line of the first type. These individual devices of different types are i.a. Coupling controls, e.g. S21, connection sets, e.g. VS1, Relay connection sets, e.g. RS1, dial receiver WS1, and like; they are provided for multiple times. The addresses of this different kinds of individual devices are arranged in address groups, each of which is one of the different Types of individual devices. The group membership an address can therefore be used to identify the special type of a particular individual device. How further

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is detailed below, the central control unit is capable of "when receiving information based on the enclosed Addresses first store both together and keep the information related to the address to evaluate further and, secondly, to infer from the address with the help of his evaluator AV / 1, of what kind the individual The device from which the information originates, i.e. of whatever type the message conveyed by the information fc is. The address group determined by the central control unit thus represents, as it were, a key with its A clear message can be determined from ambiguous information.

¹ Ds v / urdo already stated that every piece of information is subdivided into several pieces of information. The largest amount of information is determined by 4 pieces of information. The address information immediately preceding the partial information on the transmission line U2 of the second type can also take up the size of one or two pieces of information.

The length specification, the address specification and the maximum of 4 pieces of information or commands are in groups of the same size

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ΡΛ 9/420/4803 ? Η

of binary Codecleraenten zA-zischengo-stored in the work field control work and recoded and from bzv /. transferred to this; this recoding can refer to an implementation of parallel / Restrict serial code and vice versa and can form a single, common process with caching » Said group of binary code elements is hereinafter referred to as a "byte" (plural: "bytes") first byte, containing the length specification, a second and a third byte, containing the address information, and - in the present exemplary embodiment a maximum of 4 - other bytes, containing information or a command, each together form a "word". The transmission of a word Via the transmission line U2 of the second type it is controlled with the aid of auxiliary criteria. These auxiliary criteria are "read" (I), "write" (S), "blocking" (1 + 5) - as already described - and "acknowledgment" (Q).

It has already been indicated in what way information to be read by the central control unit from an individual Link, e.g. the switching matrix controller SS1 to the Arboitsfeldsteuerwerlt is transferred to Pig.2. A request goes to this transfer via the request contact on ahead. This requirement is then identified with the aid of the identifier Jd. The result of this is the Address of the individual device ST1. This address is

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PA 9/420/4803

3H-

not only draws the individual device in question,
from which the information is to be transmitted to the central control server, but also its special type,
The special types of individual devices have already been explained above. - This address is used by both
Identifier Jd held ready for delivery to the code converter GU1, as well as for the purpose of energizing the switch-on relay Mo assigned to the individual member ST1 via a coordinate-shaped Stouerraatrix. With the aid of a contact rao of the latter, both transmission switching means s and receiving switching means E of the individual device are switched to active. Over a variety of

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PA 9/420/4782 - Sow- 1 P 01 6 F

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U11 transmission line circuits of the first type all information present in the individual device is transmitted simultaneously, e.g. in a parallel code transmission process, offered to the information memory JS of the work field control unit »The information is in the partial memories JS1 to JS4 of the information memory JS added, whereupon the coupling group control SH. switched off again by triggering the relevant relay Mo will.

The information is corresponding to the storage in the IT sub-memories JS1 to JS4 of the information store divided into several bytes «, In the information store JS lies with the Information also determines its quantitative extent: The length specification becomes one of the two inputs of the gate G4 offered «The individual stored in the information memory JS Bytes are assigned to one input each of gates G5, G6, G7 and G8 offered »The gates G4 b \ .s G8 bring here symbolically to the expression that the respectively mentioned information applied to one of its inputs is only then passed on can be if via the other input of the gate a corresponding symbol is created for transmission »This symbol is provided by a distributor V with the help of his Switching arm ν switched on one after the other to the various gates G1 to G12, so that one after the other the individual bytes come to the transmission, namely first the length specification,

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PA 9/420/4785. - «■ Ww
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then the address * · and then the information or the command.

The distributor V is controlled by a sequence control AB In the idle state, this process control is via gate G15 and G17 the criterion "writing" (S) to the central control unit offered. As already stated, this means for the central control unit that the work area control unit is used for Receipt of a command from the central control unit is ready. On the other hand, was the work area control unit from one of the individual Devices are requested, as soon as the length specification, the address and the information are ready for transmission in the work field control unit are stored, transfer corresponding criteria to the sequence control AB, which cause them to the criterion "read" via the gates G15 and G17 to the central control unit to offer. If this causes the connection device GA of the relevant work field control unit in its connection cycle, to connect this to the transmission line U2 of the second type, the central server receives first the criterion "reading" (L). For the central control unit, this means that it is controlled by the work field control unit that has just been switched on to take over information. As soon as the central control unit is connected to a free memory line in the central information memory ZS is ready to be collected, it records the length information from the work field control unit already offered on the transmission line U2 of the second type will. - Ed should be made up here that gate G4 of the work area control unit for the transmission of the length specification both individual device concerned

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was already switched permeable as soon as the sequence control AB was found that the length specification, the adronse and the partial information. ready for transfer in The work area control unit has been saved »This means that the length specification is on the transmission line U2 of the second Kind of already before. if the central control unit with the help of the Connection device GA the connection of the work area control unit has caused

The central control unit receives the length information transmitted from the work area control unit via the transmission line U2 of the second type. Once up it, there is the "acknowledgment" (Q) criterion over the transmission line U2 of the second kind, or via a separate criteria line to the working field controller off This criterion applies in the sequencer AB a (Q) ₀ then sends the sequencer AB in the manner already described, the "blocking" criterion to the central control unit. The sequence control AB then sends a port switching pulse to the distributor V. This switches its switching arm ν by one step. Thus the gate G4 is blocked for the transmission of the length specification and the gate G1 for the transmission of the address from the identifier JD to the code converter CUI is controlled to be permeable. As soon as this forwarding is finished, the sequence control AB switches the criterion "blocking"

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ORIGINAL

PA 9/420/4803.

nt

off and the criterion "read" on «This causes the central control unit to record the address information given to the transmission line U2 of the second type via the gates G1, G13 and G18. This takes place in the central control unit v / er lc ZS1 via the circuit av / 1/1. The central control server also evaluates the address of the individual device with the help of its AVH tag. This evaluator does not receive and process the address in its overall information content, but merely determines which group of individual devices the individual device identified by the recorded address belongs to. With the aid of the analyzer AW notes the central control unit ZS1 whether the respective individual device is a coupling group control, Z ₀ B. ST1, a junctor, for example, VS1, a relay assembly, including RS1, a V / ahlsatz, eg WS1, or the like. On the basis of this group membership, the central control unit ZS1 is able to recognize the type of message contained in the subsequently received information and in which specific way it must evaluate this information, which is ambiguous,

As soon as the ZeiruaI control unit recorded the address specification and has evaluated, there over the transmission line of the second

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Type U2 eme receipt via the permeable gate GM 6 the sequence control AB. The Zentralst ouerv / Erk has the address receive »As already stated, the address can be transmitted in the form of one or two bytes-

In the same way, after the address in the form of further Bytes that transfer partial information from the work area control unit to the central control unit »The length specification λ '/ urde previously stored in distributor V »It is therefore possible to properly end the information in the work area control unit Determine transmission. Since the length specification was transferred to the central control unit, the same also applies to the central control unit euerwerko After receiving the last partial information of a The central control unit gives the criterion for the last time "Acknowledgment" to the sequence control of the work area control unit. Because of the initial transmission of the length specification the quantitative extent of the information to be transmitted both in the work field control unit and in the central control unit has been saved, it is possible in a simple manner to ensure that it runs properly

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© ORIGIN *

to monitor the transfer of information. Will after transfer one of the pieces of information does not transmit an acknowledgment ■ from the central control unit to the work area control unit, the latter gives an alarm in a manner not shown after a certain time has elapsed, an alarm is also given, if the central control unit uses the criterion "write" or "lock" instead of the expected criterion "read" received without the central control unit having already received the number of pieces of information required by the "length specification -was displayed. - In one of the two previous cases there was insufficient information from the central control unit requested and in the other case too little information was offered to the central control unit ο

In a similar way to information, commands are transmitted from the central control unit to work area control units * It has already been stated that a work area control unit which is ready to receive commands uses gate G15 to provide the "write" criterion at gate G17. As soon as the central control unit in the already described V / eise Lbcr causes the relevant ArbeitsfeldBteuerwerk to connect to the transmission line U2 of the second type, it receives the criterion "Write (S)". It is assumed that there is a ⁴ IUx - the work area control unit saved certain commands »

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The control unit now sends, via the gate GI6 the acknowledgment signal (Q) for flow control AB of the operating field control plant _o The sequencer AB thereby caused manner not shown, through the distributor V, that the gate G3 is switched permeable to the first of the Zentral.steuerwerk via gates G19 and G14 expected bytes. This first byte again contains the length specification, which is recorded and stored by distributor V. This means that he knows after how many port connections of his holding arm γ the command transmission will be terminated.

As soon as the sequence control AB meets the "Acknowledgment" criterion received, it switches off the "Write" criterion »First the work area control unit processes the length - specification, then there is a port switching pulse to the distributor V, which because of this, its switching arm ν by a Step advances ο The sequence control then switches AB the "write" criterion on again = the last-mentioned criterion causes the central control instead of the length specification now the address - 'over the transmission line U2 of the second type to be sent to the work field control unit »The central control unit also gives the criterion" acknowledgment " to the sequence control AB of the work area control unit, whereupon this causes in a manner not shown via the distributor · V that the gate G2 is switched on for the second from the central control unit via gates G19 and G14 expected bytes. This byte that contains the address or

^ of the individual device for which the following information is determined ..

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contains a part of it, is received via the code converter 0U2 and transmitted via the gate G2 to the identifier Jd. It is converted by the code converter CU2. The identifier Jd uses the coordinate-shaped control matrix to switch on the switch-on relay, for example _C Mo, of that individual device, for example B ₀ ST1, which is identified by the address.

* In the same way, the bytes containing the command to be transmitted are recorded one after the other via the gates G9 to G12 and received in the partial memories BS 1> BS2, BS3 and BS4 of the command memory BS using the "write" and "acknowledgment" criteria and cached _:. The Zen-r tralsteuerwerk then caused in the already described manner, that connecting device turned off by the GA the working field controller in question again from the transmission line U2 of the second kind v / ill.

■. ■

The command stored in the command memory BS v / ird via a Viol number of circuits of the transmission line Ui1 im Parallel code transmission method to receiving switching means E of the individual device ST1 transfer «The relay E sets is one of many intended interception relays.

Purely that the address contains each byte of information or a command is the code converter CU1 or CU2 in

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Fig. 2 c <a2.! U provided in coded form by the central control unit to forward the received address to the identifier Jd in decoded form. The code converter CU1 and CU2 contain the connection device GA facing side olo3i.tr on is before sending and receiving switch. The same applies to the information memory JS and the instruction memory BS.

6 claims
2 figures

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Claims (6)

PA 9/420 / 48O3 claims 1. Circuit arrangement for telecommunications systems, in particular Telephone exchanges in which between a central device, e.g. a central control unit, on the one hand and individual devices of different types, e.g. internal connection records, trunk line transfers, exchange transfers in private branch exchanges, registers, v / ahl- G. recipients and the like, on the other hand accordingly Divorce-like messages, e.g. series of dialing pulses, control criteria and the like, are exchanged, characterized in that a central information line (U2 and, for example, U11) is provided, and that - in each case in the individual devices (for example VS1, RS1, Sl ¹ I, V / S1) - the location of the origin of the information indicating the addresses of the individual devices H of a telecommunications system are arranged in groups (e.g. ST1-n, VS1 ..., WS1, and that different messages (information content) can be transmitted via the central information line (U2 and e.g. TJT1) through the same information, in that for the central device ( eg CSI) of each information not only on the basis .beigegebenen address their association - ie their origin - to the respective individual G _e advises (eg WST), but also according to the group affiliation of the special type of address Message is recognizable. - 39 - 909830/0816 PA 9/420/4803 2. · Circuit arrangement according to claim 1, characterized in that the central information line (U2 and z "B. U11) from individual devices (e.g. WS1) via one of a group individual devices (e.g. VS1, RS1, RS2, WS1, ST1-n, STc, STv, STn) common connection control (e.g. AS1) runs under several of several individual Devices (e.g. VS1, RS1) (an in fl'i'g. 2) selects one and a connection of the relevant individual device (e.g. VS1) to the central information line (TJ2 and e.g. 1111). 3 «circuit arrangement according to claim 2, characterized in that several groups (AP1 - ΑΙΊ 1) with individual devices individually assigned interface controls (AS1 - AS11) are provided, to which the central Device (e.g. ZS1) outgoing central information line (U2 and ζ.Β. U11) branches (U2). 4. Circuit arrangement according to claim 2, characterized in that that if there is an incentive to hold on in Fig. 2) on the part of an individual device (e.g. WS1) whose address through an identification process (Jd in Fig. 2) in the connection control (e.g. AS1) and together with the relevant information to the central device (e.g. ZS1) is transmitted. • - _ 40 - 909830/0816 PA 9/420/4803 - ■ * $ ►- 5. Circuit arrangement according to claim 4 _5, characterized in that the connection control (eg AS1) SendeschaltmitteT (in Fig. 2: G1, CU15 G5 - G8) and the central control receiving switching means (via av / 1/1, aw 1/3) sorohl for information as well as addresses, 6. Circuit arrangement according to claim 5, characterized in that the central device (eg ZS1) except for receivers switching ■ ^w averaging for addresses (via av / 1/1) of individual devices (e.g. WS1) an address evaluator (AV / 1) on v / eis t, with the help of which the affiliation of the addresses to one of several address groups can be determined, each of which ■ corresponds to a specific type of individual device 909830/0816 ORIGINAL