DE2104251B2 - CIRCUIT ARRANGEMENT FOR REMOTE SIGNALING, IN PARTICULAR TELEPHONE SWITCHING SYSTEMS, WHICH ARE ARRANGED IN VARIOUS SWITCHING NETWORKS - Google Patents

Description

The invention relates generally to a circuit arrangement for a plurality of Telecommunications switching systems that are connected to one another via connecting lines via Incoming lines of originating subscribers can be reached and access via destination lines grant to selectable destinations. The previously defined technical facts are well known, z. B. by telephone exchange technology. In this case the originating lines are those from the local exchanges to the toll exchanges and the target lines the other way round leading lines. Interconnections are all those over which the long distance switches are among themselves stay in contact. The connecting lines form a network that is star-shaped in several stages or meshed or in which these structures can also occur mixed. In such networks, incoming connecting lines operated in turn have access to connecting lines. This is necessary when between two exchanges between which a connection is established should be switched through, no direct lines are running. Furthermore, connections between connecting lines and connecting lines for the establishment of detour connections required, namely if there are no more lines free in a primarily controlled traffic direction are and the desired connection with acceptance of a detour alternatively initially via a connecting line leading in another direction

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is switched through - for this the technical term register and line transfers) and brings the »overflow« has been coined - and if there is a risk of a falsification of characters (translation error) further switching center the desired connection with itself. The mentioned computer-controlled Ferndung is switched through from here to the selected target voice exchanges with a stored profi-leading connection line. 5 grams, on the other hand, are already based on the principle, It is common, within certain economic limits, to transfer dialing codes directly to the overflow to establish a connection, i.e. by bypassing the connection line in various exchanges several times after and to their line transmissions accomplish to enable each other. The overflow technology also allows and makes it possible, without such tet, to provide mutual assistance among the line transmissions and, in the event of overloading of individual lines, contribute to a significant cost saving in bundles of lines with the use of less loaded lines.
bundle of services. When introducing computer-controlled remote

The invention relates specifically to a voice switching system with a stored protector arrangement of the type defined at the beginning, in the 15 grams and with voting information transmission over the data channels that are central to several switching systems are economical Switching systems are divided into two kinds, and the undiminished strong demand for the initiation via connecting lines corresponding to two new subscriber connections, that far lei are connected with their own kind, and by common local telephone and telephone dialers furthermore, two switching systems each with different networks of conventional technology must initially be operated further Type assigned to each other, preferably on the drive and telephone exchanges on the computing side Location provided and to be installed via transition lines wherever encompassed have mutual access to each other. It's broadcast extensions are required. From this it follows already known, various exchanges on itself, that little by little in addition to the telephone comparisons Place to be provided, e.g. B. Fern-, Orts- and Ne- 25 averaging systems of conventional technology those of the telephone exchanges. It is also known to emerge from computer-controlled technology. The remote exchanges of the same type through assigned intercom systems of both types are over Networks of connecting line bundles with each other Bundles of connecting lines also two to one associate. Such networks can even partially connect to one another. So it arises overlay wisely. 30 in addition to the system of conventional telephone

The invention is, however, a complete problem from another procurement system with its own line network as that of such accidents. The established another system of telephone exchange the telephone exchange technology goes into the computer-controlled technology. For Lately more and more to centrally controlled this development is among other things that with the Sy telephone exchanges above. As the latest first in computer-controlled telephone switching results of this, a computer-controlled telephone system used central data transmission between the system with the saved program (see the computers of the various central tax yearbooks of electrical telecommunications in 1971, works crucial.

Verlag für Wissenschaft und Leben, Georg On the other hand, there is a requirement that everyone Heidecker, Bad Sinsheim). All logical radio 4 ° participants can reach every other participant, functions in a corresponding telephone exchange d. H. The parts connected to the telephone exchange are also mutually connected to a central computer from various systems. Its operations run according to programs. For this purpose, the already mentioned above are used, the transition lines mentioned in an allocated program memory. In addition, there is are included. All other data, namely the 45 for both systems the need of the mutual for the establishment of the connection, connection monitoring temporary help with connection lines in the sense of the softening and for the connection release necessary technology of the also already explained above gen, are - if necessary - in an ar- overflow. Are now in the manner defined above cached memory. in two different networks telephone exchange

According to this, telephone switching systems 50 are provided, which are accordingly in are connected to one another via central data channels, such as two types of which are subdivided via connection. These serve, among other things, for the transmission lines of two types electoral information to produce elected peers are connected and of which further ter connections. The exchange of information via two switching systems of different types, one data channel assigned directly between the central control units, preferably at the same location two are unseen via telephone connection lines and reciprocally via transition lines If interconnected switching systems have access to one another, they can be over-simplified and, as is well known, considerably accelerates transmission lines in the sense of the overflow technology the Mögden Connection establishment. Namely, must create electoral recognition that all trunk groups of both Sign from one central control to the next - over 60 systems mutually support each other depending on the degree of stress these will be configured upon application. Another problem arises here. Everyone conventional technology via forwarding registers, transition from one system to the other is conditional outgoing line transmission, line, incoming one implementation of the dialing information. Because of the Line transmission, reception register of centralized different principles of dialing information override passed to central control. In both systems, one is complete each time a multiple implementation takes place. This requires constant intermediate storage at the transition point Expenditure of time (i.e. slower connection establishment required. The advantages of fast election information) and circuitry complexity (more expensive information transmission via the central data channel in the

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Telephone system of the computer-controlled technology usually requires intermediate storage anyway in this case are completely lost again. dig. A transition at this point makes in the In this case, the establishment of a connection would normally not require any additional intermediate storage in a way that is disruptive to the participants. At the point of connection of the target line, something else is important delay, for which the technical term »call-5 side is an essential part of the election information delay «has been coined. Furthermore, the possibility of establishing a connection up until then brings clarity a multiple transition from one needs. A transition at this point allows the system to another a significant burden of half a caching in the least possible Bundle of connecting lines with it and makes scope. The transition once at the beginning and it is necessary to measure this relatively extensively sen and to a corresponding extent for this purpose utilization of the advantages of mutual temporary help corridors and outputs from switching devices of the various line networks that a remote control to provide; in connection with this, remote speech communication would be completely within just one the scope of the switching systems themselves is switched through in the two line networks, d. H. to expand corresponding mass. 15 with regard to the part that is

The object of the invention is to run under the manure lines. The connection of a Requirement for two parallel networks, e.g. B. Telephone remote telephone connection only within one of the Intercom networks, two different systems, one with both systems creates the possibility of being in front of the other Helping out both line networks in the sense of partial way the election information over several to enable the overflow technology, but 20 line sections consistently uniform through-Disadvantages the effort and the loss of time can be given. This represents in a Fernder Connection establishment as a result of the computer-controlled voice switching system Transition causally connected intermediate storage technology the full use of the election information and the disadvantages of the effort involved in overmation transmission over central data channels for outgoing trunk groups and the necessary 25 advantages.

Coupling switching means within the narrowest possible limits. The invention is of course not limited to that

should be held. Existence of only two parallel telecommunications switching

According to the invention, this task is limited by networks, but can be compared with the same solved that on the one hand only the original lines of an advantage also apply to several parallel networks switching system of one kind - or the other. There is always a transition from one to Ren type - via transition lines in the exchange - another network at the beginning (connection point of the affected system of the other type - or the one type - originating line) of one to be switched through both with their outgoing assignable connection and a second transition from this instructions as well as their target lines connectable their network to any of the other networks that are but that on the other hand the incoming receipts are suitable for reaching the desired destination connection lines of the switching system must be at the destination (connection point of the relevant the one type - or the other type - via over-target line) of the connection to be switched possible through lines in the switching system of the ande- borrowed.

ren kind - or the one kind - only with their goal- In the drawings F i g. 1 and 2 is an execution

Lines can be connected and that for this purpose the two examples of the invention are shown, to which connection options on the one hand, however, are by no means restricted by the original.
Jump lines and on the other hand from the arriving In F i g. 1 is a larger number of telephone

mend assignable connecting lines represented by a at exchanges Al to Ll in excess of occupancy of a transition line to the intermediary of a network of in a known manner into bundles together treatment plant of the second type - and the first Fashion 45 volume bordered connecting lines with each other transmitted distinguishing feature in the last - are connected. The telephone exchanges ren are distinguishable. A 1 to L 1 are in conventional switching technology

The invention is carried out for each connection technology and, like the production above, has a double transition from one half of FIG. 2 shows - as a switching switching system in the other and vice versa. A 50 mean voters P11, P 12, P13 and P14, which here first transition is only intended to symbolize at the beginning of a chosen voter group. The connection to be established is possible. He creates the telephone exchanges A2 to Ll are against the possibility of mutual help from both networks. The second transition is only available at the end of the connections, e. B. those, as in the already mentioned year, that is, in the exchange that describes the 55 book of electrical telecommunications in detail direct access to the selected destination (target line). Granted as switching means, possible. serve - as well as the lower half of FIG. 2

The mutual help relates to the two shows - coupling fields Pl. These are single line networks as a whole in FIG. 2, not the bundles of individual line sections for reasons of simpler representation. This ensures that in a single stage and with inputs and outputs, despite the mutual help of both lines, each connection can just as well be designed as coupling fields with network networks, via most of the reverse grouping,
away, ie from the connection point of the originating line. The telephone exchanges in FIG. 1 are

to the connection point of the target line, in the same sy- over bundles of connecting lines, z. B. Vl, star remains. This is particularly important for telephony 65 Vl ', Vl, Vl' and other interconnected, long-distance connections. At the point of origin These connecting lines can be in tet or bidirectional with regard to the (connection point of the occupied original line) is direction of connection establishment, routing and billing. Anyway, is one

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Establishing a connection between each of two long-distance grants access to the target lines Zl of these telephone exchanges in both directions is possible. This starting group is on loan. With these telephone exchanges may be reached by all four voters. A third auses, which concerns the switching of so-called group of these voters, grants access to only ten long-distance calls, that is to say telephone switching parts to the transition lines X1J2 of the first category. These transfer lines are only from the to the

The telephone exchanges A 1 to L 2 are telephone exchange A 1 connected original remote via source lines, for example Ul, U2 of jump lines Ul via the incoming subscribers calling by the selector P13. Voter group symbolized here can be reached. A fourth, may it be feeder lines from an initial group of these voters, grants access to associated so-called telephone exchanges, transition lines Y 1/2 of the second category, management center. The Fernsprechvermittlungsstel- These transition lines are apart from the Al Ien to L2 have further includes target lines, for. B. Special feature of yl - only from the to the Ver-Zl, Z2, access to selectable destinations, z. B. equalization center A 1 connected, arriving, if associated telephone local exchange 15 connectable connecting lines VIr over the long-distance network (FIG. 1) dialed by Ien to reach participants from the voter group symbolized by the voter P14. bar. - In the switching network P 2 of the telephone exchange

Like F i g. 1 shows, if there are two telephone exchange A 2 , the connection switching centers provided are assigned to one another. As a rule, possibilities are indicated by small circles around the two telephone exchanges, for example Al 20 the relevant intersection points between one and A 2, at one and the same place. They are - as output lines (shown horizontally) and described above - in different technology (shown vertically) of the switching matrix P 2 leads. This is the result of which have already been extensively withdrawn. The transition lines X1I2 highlighted expansion problems. Two telephone exchanges arranged in the telephone exchange A 2 access, z. B. A1 25 to both the connected target lines Z 2 and A 2, have transition lines such. B. X as well as the outgoing assignable connection and Y, reciprocal access to each other. lines V 2 t.

In Fig. FIG. 2 shows the manner in which the links according to the invention, which are located herein, can be produced. Within the temperance likewise the Verbindungsmögoberhalb the dashed line relates to the illustrated 30 possibilities via the telephony switching telephone exchange of the Al and within the point A2 on the transition lines X 2/1 of the most category and Γ erunterhalb the dash-dotted line shown 2/1 of the second category to telephone exchange A 2 have the origin of the telephone exchange A1 through switch- through lines Ul or U 2 and incoming assignable ren connections. The connecting lines FIi and U2 which can be occupied going in the telephone exchange connecting lines FIr or V2r have access to the origin lines connected to the terminal A 2 via the transition lines X 2/1 and F2i and to destination lines Z1 and Z2. At this symbolized by the voter PII voter should be pointed out that the incoming Zubelegbaren interconnectors group in the central office Al V2R and off transition both to their target lines Zl, as well as to continuously assignable interconnections F2i 40 whose outgoing interconnections FIi . Which are equipped in the central data channel wr or wt, the telephone exchange A 2 , the inter alia for fast data exchange connecting lines F2r have, on the other hand, via the data terminals Wr and Wt between the data transfer lines of the second category Y 2/1 and inside the central control units ( S) various long-distance exchanges which are symbolized by the voter P 12 are used. 45 group in the telephone exchange A1 only

Furthermore, in Fig. 2 transition lines X 1/2, to the target lines connected to them Zl supply

Γ1 / 2, Z2 / 1 and Γ2 / 1 shown. Like their incident.

Drawings already indicate, it is by the legality according to the invention

Transition points of two categories (X ... and becomes twice for each connection establishment

Y ... ). The original lines Ul of the telephone 5 ° transition from one system to the other and vice versa

switching center A 1, which allows swept in conventional technology. One system consists of the

is executed, are in this with the interim telephone exchanges A1 to L1 and they

lines X 1/2 of a first category and this in the connecting connecting lines and the other

Telephone exchange A 2, which in the computer system from the telephone exchange A 2

controlled technology, both with their 55 to L 2 and the connecting lines connecting them

outgoing assignable connecting lines F2i, as gen. A first transition is only at the beginning of a

can also be connected to their target lines Z 2. Selected connection to be established possible, in-

on the other hand, the lines to the telephone exchange are only the originating lines of the telephone

connection point Al connected, arriving occupancy center of the one type via transition line

connection lines VIr in this switch 60 the output connection lines of the long-distance

Reach the transfer center with transition lines Γ1 / 2 of a two-way exchange of the other type

th category and this in the telephone exchange can - and vice versa - and by the arriving

communication point A 2 only with their destination lines Z 2 occupied connecting lines of the telephone

bindable. To illustrate this in FIG. 2 technical switching center of one kind via transition lines

realized conditions is in the telephone exchange 65 the target lines of the telephone exchange

switching center A1 can reach the voters P12, P11, P13 a different type - and switch

and P14 common voter multiple ρ shown. swept -. This first transition creates the possibility

A first starting group of this electoral diversity of mutual help from both networks.

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Reached ζ. B. a calling subscriber over the Ur- of the dialing information transmission over zensprungsleitung Ul the telephone exchange tr ale data channels (wr, wt) given advantages. Al and are all is to achieve the Fernsprechver- In Fig. 2 in the Femsprechvermittlungsstelle mediation point Eq is appropriate lines of the distance al in yl and the Femsprechvermittlungsstelle speaking switching network conventional technology loading 5 Al wherein y2 another embodiment of the replaced, the calling subscribers shown in the remote finder. After that, the original central office may A1 cords over a transitional Ul the telephone exchange A1 line X to Femsprechvermittlungsstelle ^ 2 throughput over the symbolized by the voter P13 Wähverbunden; From here, in the remote group, the transition lines Y1 / 2 of the voice switching network of the computer-controlled technology of the second category and via this in the telecommunications system a connection to the desired switching center A 2 to the destination connected to it are switched through. Reach a transition from the target lines Z 2. So look for connections LAT Femsprechvermittlungsnetz the computer controlled the origin lines Ul and Zielleitun technology in the telephone switching network of gen Z 2, not only the Ubergangsleitunkonventionellen technology but is only at the destination 15 genXl / 2 of the first category but also the possible. This prevents the connection lines F1 / 2 of the second category from being used several times by one remote station en route. The same applies to connection switching network in the other and back fertilize between the original lines Ul and can change over. At the destination, the selected target lines Zl, for which, in addition to the transition connection, optionally from the telephone lines U2 and the target lines Zl, for the extra switching center G 2 to the telephone exchange, the transition lines Z 2/1 of the first category Gl via one of the The transition lines in question can also use the transition lines Y111 of the second category and, from here, a target line to the desired category. The seeded participants switched through. In spite of the mutuality according to the invention, this does not affect the temporary assistance of both line networks. These design variants er connection over their major part, ie only possible an increase in the utilization from the connection point of the original line to the connection point of the transition lines.

Closing point of the target line, in the same telephone connection, is still on another network, not shown. This is particularly pointed out in the case of the telephony variant. This provides for long-distance connections as an advantage. At the origin 30 that in both directions between two mutually sprungsort (Anschalteort of occupied Ursprungslei- associated switching equipment, eg. As AlundAl, tung) is because of the routing and fees for each of the two directions of a joint acquisition usually already a Intermediate storage bundle of transition lines is provided. Um tion necessary. A transition at this point now makes in the manner according to the invention, the Uralso usually no additional Zwischenspeiche- 35 jump lines Ul the switching system A1 tion required. At the connection point of the target line of the switching system A 2 both with their abist on the other hand a substantial part of the Wahlinforgestend assignable connection lines VtI as mations already for the connection establishment up to their target lines Z 2, on the other hand, however, consumed there. A transition at this point ER- arriving assignable connection lines FIR therefore laubt caches in geringst- 40 of the switching system Al in the exchange possible extent. The transition once at the system A1 only with its target lines Z 2 to be able to connect the beginning and the end of a telephone connection is effected according to this variant despite the use of the advantages of the mutual occupancy of a transition line by a temporary temporary agency of the various telephone exchange originating line Occupancy criterion of a first distribution network is that a telephone connection is fully switched through, on the other hand, when a transitional line is occupied within only one of the two line networks by an incoming, assignable connection, i.e. with regard to that line, an occupancy criterion of a second type from part given via telephone connection lines . This is done in a corresponding manner in the running. The through-connection of a Fernsprechfemver- switching system A1 evaluated by the connection here only within one of the two systems, 50 relevant transition line in one case Wahlz. B. Al to Ll or A2 to L2, creates the possibility both with an outgoing veracity that advantageously the choice information connection line V2t as well as with a target line over several line sections through Z 2, in the other case only with can be communicated uniformly to a target line. This represents Z 2 can be connected. The same applies to the full use of the switching system A 1 in the telephone switching system of the computer connections from the switching system A 2 to the controlled technology (A 2 to L 2).

1 sheet of drawings

Claims (5)

Patent claims: 1.Circuit arrangement for several telecommunication systems, in particular telephone switching systems, which are connected to one another via connecting lines, are reached by incoming subscribers via original lines and grant access to selectable destinations via target lines, which are further subdivided into two types of switching systems and of two types via connecting lines are connected to their own kind and of which two switching systems of different types are also assigned to one another, are preferably provided at the same location and have alternating access to one another via transition lines, characterized in that on the one hand only the original lines (t / l or t / 2) of a switching system of one type (A 1) - or the other type (A 2) - via transition lines (X 1/2 or X 2/1) in the switching system of the other type (A2) - or of the one type (Al) - both with their outgoing, assignable connecting lines (V 2 t or FIi) as well as with their destination lines (Z 2 or Zl), but on the other hand the incoming assignable connection lines (FIr or F2r) of the switching system of one type (-41) - or the other type (A 2) - via transition lines (Γ1 / 2 or Y 2/1) in the switching system of the other type (A 2) - or the one type (A 1) - can only be connected to their target lines (Z 2 or Zl) and that for this purpose the two connection options on the one hand from the originating lines (t / l or Vl) and on the other hand from the incoming assignable connection lines (FIr or F2r) through an when a transition line (U 1 or t / 2) is assigned to the switching system of the second type (A 2) - or the first type (A 1) - transferred distinguishing feature in the latter are distinguishable. 2. Circuit arrangement according to claim 1, characterized in that in both directions between two associated switching systems (z. B. A1 and A 2) transition lines of two categories (X ..., Y ... ) are provided and that on the one hand only the original lines (t / l or t / 2) of the switching system of one type (Al) - or the other type (A 2) - in this with transition lines of the first category (X 112 or X 2/1) and these in the switching system of the other type (A 2) - or the one type (A 1) - can be connected both to their outgoing assignable connection lines (F 2 ί or FIi) and to their destination lines (Z 2 or Zl) , but that on the other hand the incoming assignable connection lines (FIr or F2r) of the switching system of one type (A 1) - or the other type (A 2) - in this with transition lines of the second category (Y 1/2 or Y 2 / 1) and this in the switching system of the other type (A 2) - or one type (A 1) - only with the other n target lines (Z 2 or Zl) can be connected. 3. Circuit arrangement according to claim 2, characterized in that the original line gen (t / l or t / 2) of a switching system of one type (A 1) - or the other type (A 2) - in this with transition lines of the second category (Γ1 / 2 or Y 2/1) and these in the switching system of the other type (α 2) - or the one type (a1) - can be connected to their target lines (Z2 or Zl). 4. Circuit arrangement according to claim 1, characterized in that a common bundle of transition lines is provided in both directions between two associated switching systems (z. B. A1 and A 2) for each direction and that on the one hand only the original lines of the switching system of the one Type - or the other type - on the basis of an occupancy criterion of a first type when occupying a transition line in the switching system of the other type - or one type - both with their outgoing, assignable connecting lines and their destination lines, but on the other hand, the incoming, assignable Connection lines of the switching system of one type - or the other type - can only be connected to the destination lines due to an occupancy criterion of a second type when a transition line is occupied in the switching system of the other type - or one type. 5. Circuit arrangement according to claim 4, characterized in that for both directions a common bundle of bidirectional transition lines is provided.