DE3110175C2 - Circuit arrangement for a special telephone system formed from a centrally controlled extension part and a centrally controlled operating part (branch line counting device) - Google Patents

Abstract

The special telephone system (FSA) has subscriber-assigned sub-coupling stages for the extension part (TK-N) and sub-coupling stages for the operational part (TK-B) for the extension subscriber facilities (NST) and the operating subscriber facilities (BST). To determine the occupancy frequency and the number of call connections that can be switched through in parallel between the two parts of the special telephone system (FSA), the partial coupling stages for the extension part (TK-N) can be connected to the counting device (ZAE) and the limit value storage device (GSP). Such special telephone systems are required, among other things, for energy supply companies.

Description

3 4

it says the fixed number of special intercom system of the extension part FSN and the

Branch lines are intended restriction of parallel special telephone systems of the FSB operating part. So-

Call connections to be established between the probably the special telephone system of the extension part

To avoid the extension part and the operational part without FSNaIs also the special telephone system of the operational

ne, however, the different authorizations of the ne- 5 partly FSB include not shown coupling fields

subscriber facilities and the operating part - in the area of the extension part N, the extension

Maintenance facilities within the respective sub-system subscriber facilities NST as well as the main

ge and, in addition, the central outlet lines HAL and in the operational part of the operational

fendcn switching and control processes at the cross-border subscriber facilities BST and the operating

The connection traffic between the extension lines BAL is connected. Farther

l part and the operating part within the telephone is for the special telephone system FSA that for the Ne-

to simplify special system. part N and part B together.

The attendant console device VPE , which is considered in the patent, is used to solve this problem.

claim 1 provided features. hen, which is also about the message lines ML with the

With the provision of the respective coupling network of the extension part N for the extension part and 15 and that common to the operational part, from individual operating part B are connected. The dashed line mer-associated sub-coupling stages formed between the switching station device VPE and eifeldes for the special telephone system is achieved that ner of the main connection lines HAL or the connection for the extension part and the operating part, an averaged station device VPE and one of the common central control device BAL are connected indicates that the operator can. These measures also direktt- in space device VPF access unnecessary to entden previously known telephone Special units up speaking main leads HAL or the agile control measures for synchronizing examples corresponding operating leads BAL have the separate central control devices, so that the can.

usual control lines between the side 25, the extension portion N and the operation of Part B of the set part of such telephone installations special unfolding Fernryrechsonderanlage FSA can - as already Ien. However, to continue to mention the number of conversation at the beginning - completely independent of Nebenstellenteilnehmereinrichtun- ihverbindungen re call connections using the respective gen with the operation partly for reasons such as central control devices ZSN for the extension fee collection can be determined inventions 30 in part and ZSF for the operating part via the switching fields not shown on the sub-switching stages of the extension to the corresponding main part, with which the extension subscriber devices are directly connected to terminating lines HAL or operating connecting lines, automatically create a counter to BAL. The one that is particularly interesting here. This counting device allows the correct sender connection establishment between the extension determination of the occupancy frequency of the operating part 35 l part N and the operating part B is usually by the extension subscriber devices. with the involvement of the two parts

Manufactured according to an advantageous embodiment of the determination station devices VP / f. For this purpose, the counting device is functionally connected with one purpose, for example, by the extension part limit value storage device, so that the subscriber device NST establishes a call connection, for example, with a predetermined number of permissible 40 over the corresponding message line ML to mediate parallel call connections between the management station device VPE and the extension part and the operating part of the telephone connection request of the operator of the special system with the exceeding of a limit value averaging station device VPE are communicated. No further call connections of this type could come to the operator of the attendant console. Thus, the requirement of account 45 VPE is then the appropriate signaling line voltage supported, on the one hand for dfe Femsprechsonder- ML for the operation part B of the telephone special conditioning system necessary number of parallel conversation FSA and can provide subscriber device by manually connecting the side links in accordance with the traffic A / stent Neither with the attachment and, on the other hand, connect a maximum of only the charges operator subscriber device BST or with the service connection line BAL desired for this number of calls 50 allowed in parallel. To be able to pay such connections. soon the operator of the attendant console

Another advantageous embodiment of the invention VPE based on the call connection provides that the subscriber-assigned part switches, the coupling stages of the extension part and the operating part ^ call connection between the extension part N are to be carried out identically via the branch line AZL, so that the common 55 and the operating part B maintained.
Coupling network constructed in the same way for both subsystems. FIG. 2 shows an exemplary embodiment that can be inventive. proper circuit arrangement, the remote

The invention is shown in a figuratively illustrated special speech system FSA in addition to the participants

Embodiment explained in more detail, whereby in the arranged partial coupling stages TK-N and TK-B the partial

Fig. 1 has the previously known special telephone system control 75, to which the switching stations are shown in excerpts and the direction VPE is switched on. The participant-assigned

F i g. 2 the circuit arrangement according to the invention Neten sub -coupling stages TK-N and TK-B represent practically

shows. table the common coupling field of the telephone

The F i g. 1 shows the special telephone system FSA, the system FSA , with the coupling stages of the Ne-

which consists of the Nebftnstelle part N and the operating part B 65 benstellteils TK-IJ ά \ ζ main connection lines as well

considered. The Nebeiistelle part N and the operating part B, the extension subscriber devices NST and on

each have their own central control devices ZSN the sub-coupling stages of the operating part TK-B the

and ZSFauf, which are an integral part of the long-distance connection lines BAL as well as the operating

are connected. Furthermore, the sub-coupling stages of the extension part TK-N are connected to the counting device ZAE common to these coupling stages, which in turn is functionally linked to the limit value storage device GSP. The central control device ZST the telephone special conditioning FSA is connected by schematically illustrated control lines both with the partial switching stages of the extension portion TK-N and the sub-switching stages of the operating portion TK-B and with the TtMlsteuerung TS of the attendant device VPE.

To set up the call between the PBX subscriber device NST and for example, the operating user equipment ÄSTwird the extension subscriber the corresponding Teilkoppel- is of the extension portion TK-N stage occupied, and wherein a switching operation by the operator position means VPE means of the central control device ZST the connection between the Nebensteiienteiinehmereinrichtung NST and the attendant device VPE switched through via the partial control TS . The operator of the switching station device VPE then establishes the desired connection to the operating part, either to the operating subscriber device BST or to the operating connection line BAL and then in a known manner through a switching process the call connection between the extension subscriber device NST via the sub-coupling stage of the extension unit TK-N and the sub-coupling stage of the operational part TK-B switched through to the desired company subscriber device BST or to the desired company connection line BAL. When the call connection is established, the counting device ZAf is activated in a manner not shown, which in turn transmits a pickup pulse to the limit value storage device GSP.

If several such call connections are set up in parallel, the limit value storage device GSP is activated with each new seizure impulse, which in turn acts on the subscriber coupling stages of the extension part TK-N when the maximum permissible call connections are reached via the counter ZAE , so that further call connections between the extension subscriber devices Λ / ST and the operating part can no longer be switched through by the central control device ZST.

These switching operations ensure that, on the one hand, the maximum number of parallel call connections is monitored by the limit value storage device GSP and, on the other hand, the number of call connections for calculating the charges can be determined with the counter Z4 £.

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1 sheet of drawings

65

Claims (3)

1 2 The invention relates to a circuit arrangement for claims: one consisting of a centrally controlled extension part with a centrally controlled speech path network 1. Circuit arrangement for a switchable extension unit and facility Centrally controlled extension part with a centrally 5 a centrally controlled operating part with a remote controlled one Speech path network connectable res centrally controlled speech path network connect extension subscriber devices and remote central controlled units formed by operating subscriber facilities Operating part with a further special intercom system in which the voice connections are centrally controlled Switch on the speech path network - see the extension participants and the operable ones Operational participant facilities formed io participants run over branch lines and the Special telephony system, in the speech connection one for the extension part and the operating part against has between the extension subscribers and the common switchboard facility Subscribers to the operation via branch lines are lied to special telephony systems that are defined in this manner fen and one for the extension part and the so-called company telephone systems and others. in the Ener part of the company common switchboard equipment 15 are used and serve in the device, characterized by the essential to this, on certain line network combination of the following characteristics: cut message information between subscribers equipment to transfer a the nebula part 1.1 The extension subscriber devices and the operational part are to be understood as independent remote (IS) and the operational participant devices 20 speech devices, which in themselves are a completely (BST) to a voice communication traffic that is separate from each other for the extension participant (N) and the operational part (B) in the telephone son- wind. In order for certain operating cases, for example the system (FSA) to be jointly provided, for monitoring purposes or also in emergencies, individual subscriber-assigned subscriber interface subscriber facilities with transmission stages (TK-N, TK-B) formed centrally controlled facilities or lines of the operating part to be converted into a speech path network * srk connectable, bind, it is known, so-called branch lines \ 2 the attendant console facility (VPE) is to be provided. This branch lines can a driving part to each other lanes network connectable in two directions of traffic for the extension part (N) and the loading subscriber devices of the extension part with operating part (B) provided in common partial transmission devices or lines of taxation (TS) of the centrally controlled speech 30, correspond. the extension part (K * and the operational part (B) Since there are generally several such operational remote has a common central control device intercom via a private line network - in the folding (ZST) , which assigns the line network for energy transmission to the sub-coupling of electricity supply companies, for example (TK ... ) as well as to the sub-controller 35. (TS) acts, are interconnected, it is also 1.4 the sub-coupling stages (TK-N) of the private branch exchange possible, subscriber devices of different network parts (N) are connected to one of the call connection parts while bypassing the public telecommunication network between the extension subscriber voice network via the private line networks miteinaneinrichtungen (NST) and the operating subscriber connect to. Such connection processes, of course, presuppose that the meter devices (BST) and / or the operating systems must allow these registration authorities, which are recorded by the respective long-distance lines (BAL) , and moreover allow the connection (ZAE) . individual subscriber facilities for producing derar tiger business connections are authorized. 2. Circuit arrangement according to claim 1, the functional linkage of the extension part characterized by the combination of features and the operating part of the special telephony system so as a rule to a few special cases, like this 2.1 the counting device (ZAE) can be connected to a limit that the previous system design, in particular value storage device (OS7>;), according to the general requirement of the independent 2.2 the limit value storage device (GSP) ensures the functioning of both parts of the system, always two separately influenced, the central control device (ZSt) provides for each of the partial systems art that with reaching the maximum permissible, there are also small EVU counter systems - for example parallel calls between way from SEL messages, 12th year (1964), Seidem extension part (N) and the operating part th 79 to 81 - known where the Connection path ^ no further call connections of the 55 ge between the subscriber facilities of the same kind can be established, stelleteil and the facilities in the operating section through indirectly controlled coordinate switches, which are used as call 3. Circuit arrangement according to claim 1, searcher and line selector are connected, produced can be identified by the feature. Such systems are only 60 ge number of subscriber lines can be used profitably, 3.1 the subscriber-assigned sub-coupling stages because the decentralized marker control for larger ones (TK-N) of the extension part (N) is too complex with systems of this type. In addition, in the case of the sub-coupling stages (TK-B) of the operating part (B) , the number of interconnection traffic between the envious table, user part and the private alarm system is the number 65 of branch lines are fixed, so that in certain In certain operating states, this connection traffic is restricted by cases of route being occupied. The object on which the invention is based is