EP1214825A2

EP1214825A2 - Method and arrangement for coupling messages in a central control device with decentralised communications devices

Info

Publication number: EP1214825A2
Application number: EP00963982A
Authority: EP
Inventors: Rainer Windecker; Steffi Lissi Winkler; Egon Franz Klein; Antonius Emmerink; Andreas Steffan
Original assignee: Siemens AG
Current assignee: Siemens AG
Priority date: 1999-09-21
Filing date: 2000-09-13
Publication date: 2002-06-19
Also published as: CA2385332A1; JP2003510901A; DE19945152C1; WO2001022677A2; US7154908B1; CN1391753A; WO2001022677A3; CN100409643C

Abstract

The invention relates to a novel private extension unit arrangement and the migration solutions of existing devices. Communications links are produced by means of a transport network. Control is carried out in a centralised manner by means of a central control device which is connected to the decentralised network devices and the interface modules via a two-step connection. The control messages are collected and distributed in a decentralised manner. The control connection from a decentralised device respectively to the central control device is provided via an ATM network or an ethernet connection.

Description

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against the need for a private branch exchange. It generally moves within a maximum of several thousand incoming and outgoing connections. Such facilities are not particularly well suited for flexible adaptation to growing numbers of participants. Likewise, due to the ISDN standard (Integrated Services Digital Network), the data transmission capacity per time slot of a connection is limited to max. 64 KB limited. This stipulation makes flexible, subscriber-specific adaptation of different data rates and connections difficult or impossible.

In addition, in the case of common facilities, the establishment of a communication infrastructure in the form of a network of decentralized facilities, which are supplied with messages by a central control system, is restricted because strict time requirements must be met when transporting control messages, which must be met after a defined length of control - line can no longer be maintained. The HDLC protocol (Highlevel Data Link Control) is currently used on these message lines, with which messages are transmitted which, among other things, control the access of individual devices in the decentralized devices to a PCM data stream (pulse code modulation) by defining defined time slots pretend. If HDLC connections have simply been extended, the time requirements between the communication partners involved at the ends of the route cannot be met. The communication partners had to be modified so that they made lower demands on the time behavior. In practice, this does not make sense, since a large number of possible communication partners are affected and thus higher

Effort arises and more resources such as memory m the communication partners had to be brought in. The object on which the invention is based is to enter a further method and a further arrangement for coupling messages from a central control device to a decentralized communication device which

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stare, because they are already implemented at major facilities like this, and may be because of the long distance differed ^¬ lichste networks used.

A further development of the described method is particularly advantageous for coupling several decentralized devices to a central control system, because decentralized messages are coordinated and distributed and only have to be transmitted bundled on one line to the central office.

When bundling, several messages can advantageously be packaged in one IP packet, thus reducing the administrative effort required for the protocols. This improves the ratio of user data to protocol data and thus creates less load on the network.

Groups for which messages are collected and distributed can advantageously be set up for the administration of a number of decentralized facilities, because in this way, message collection and distribution facilities that can already be used for central facilities of a known type can be used in decentralized facilities.

In the central control device, in the event that several groups of decentralized devices are managed, the messages are sorted before they are processed, because this enables a clear group-specific prioritization and processing of the messages.

In an arrangement for coupling messages between a decentralized device and a central control device, at least two types of connecting lines are particularly advantageously used, on which different transmission protocols are implemented. HDLC-based protocols are advantageously used for the exchange of messages at close range, because in this way already > co l \> P ¹ ι- cn o cn o Cn o Cn

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The message processing takes place particularly advantageously in the second central facility, because in this way previously common peripheral facilities can also be integrated into the message control process, so that a mixture of previously common facilities of a private branch exchange with novel facilities of a new private branch exchange in any configuration is operable and controllable. In a further development of the arrangement described, control messages for connection control of a switching matrix are generated and transmitted to the second decentralized communication devices, or used to control the switching matrix in mixed arrangements, in a further development of the arrangement described. In this way, connections can be established in the entire area of the switching device, regardless of whether the communication participants are connected to new types of devices or to conventional devices.

Exemplary embodiments of the invention are explained in more detail below with reference to figures:

FIG. 1 shows a conventional communication arrangement, FIG. 2 shows an example of a communication arrangement with decentralized devices,

Figure 3 shows a network structure consisting of a central

Device and several decentralized devices, Figure 4 illustrates the connection of a decentralized device to a central device, Figure 5 illustrates an advantageous embodiment of an arrangement for message coupling based on an ATM network, Figure 6 shows a detailed view for coupling decentralized devices to a central control device an ATM network. cυ M | V> P ¹ p »cn o Cn o cn on

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0 N 0 o φ 03 o hf φ Φ 03 Φ P- tr DJ rt rt 0 hi cn rt P ¹ hh tr PJ 0 O cn 0 J o CΛ 0 tr P- Φ tr d EP hf φ hj φ hf 0 P- P- N rt P- Φ h- ¹ 3 hh n N td P 'hj hf er Φ rt Φ P- Hi N (Λ rt cn Φ h- ¹ rt CΛ φ o P- Φ Φ O Φ tr φ 3 d φ dwd P- Φ α DJ P-

DJ P '03 hj O y-> Φ rt Φ n 0 CΛ Xi hf d 03 0 ¹ 0 cn ¹ O 0 cn & rt P- 0 0 0 P- dn hf φ hf d: d tr PJ: 0 φ tr z Z o rt CΛ Φ \ -> ω P ¹ α tr ω er PJ 0 03 N 0 n tr

0 O: er 0 n rt d z φ Φ hf Φ 0 0 PJ Φ <3 cn d rt P- PJ d hj Φ Φ W P- tr rt

EP Φ 03 tr hf φ & oo p- hj rt 0 Φ P- 0 φ P- rt hh P ¹ P- 0 d cn P- 0 P- φ dz N Φ hj cn z P- PJ hj o cn P ¹ CΛ P- rt hf CΛ • hf rt Φ d: Φ o 03 nn 0 0 hj P. 0

O d hj P ¹ φ 03 P ¹ d hj cn Φ Φ Φ N PJ: o er d hf 0 <tr tr M Φ hf rt P- 03 tr Φ tr φ P- φ Φ 0 φ φ 0 hf O φ P P - Z Φ φ P. o Φ rt 0 P- φ φ

Φ p ^ - Φ P- 0 03 0 0 N Φ 0 CΛ § CΛ 0 0 Φ hf α hj 0 DJ d 03 n 0 CΛ

P- O: * i rt <cn dz 3 0 hh rt α P ¹ rt PJ Φ N 0 φ z tr CΛ O

0 P- d α φ M 0 cn φ 0: P- P- Z P- φ Φ dn cn PJ α d <CΛ 03 CΛ φ rt £ P- Z J. 0 PJ: Φ 0 Φ hf P- φ 03 P - Q> P- ω Φ 03 DJ od P- 0 tr P- h- ¹ K Φ P- PJ hf d Φ 03 o φ Φ O er 03 hf rt 0 P- 0 p- cn 0 d tr tr φ 0 03 Φ 3 tK P- d hj 0 N 3 α 0 P ^J 0 tr

0 tr P- φ Φ hf rt Φ P- φ tK φ hj hf hf Φ 3 O Cn er 0 er P w 3 Φ 03 α DJ P ¹

O • φ 03 0 N P- P- d P- O 0 α PJ 03 P- d hj d: Z Ό P- Φ rt P- • M φ 0 dn 0 Φ n 0 0 DJ 3 PJ rt φ 0 0 σ > Φ X5 φ Φ 0 h- ¹ INI 0 P- P. tr 5: PJ h- ^> d P- d tr 03 φ> 0 3 rt P- 0 rt 03 cn φ d ω Φ hj P- hj p. et d rt P- td 03 CΛ P-

PJ: er DJ 0 rt 0 rt Φ 0 dd ö φ O o Φ CΛ o hf cn φ P ¹ rt Φ d er 0 JP «cn P- φ hf α 0 rt tr 03 d 0 n α 0 p- 0 0 3 03 1 -> 03 0 hh 0 PJ 0 Φ d er <φ

P- Φ Φ 03 Φ hj 0 tr tr Φ P- Φ hf n α DJ rt φ Cn rt 0 03 hj Φ N φ hf N

Φ n Φ hj P- Ό 03 o hj tr CΛ rt φ p- d tr P- 0 P- «α Φ α P- d hf dd tr rt Φ DJ tr er DJ Φ hj 0 φ 0 Φ φ 03 p- P 0 Φ 0 α Φ 03 tr

<P- dt ^"1 IN! P- hf INI P ^J Φ Φ cn rt P- hj Φ • hf 0 cn o PP hj PJ <P Φ Φ 03 rt

O Φ 0 Φ d CΛ P- td CΛ 0 P. Φ P- cn rt rt φ N tr £ • P- φ 03 CΛ Φ d Hl tr CΛ hj hf 03 P- tr o Ό P ¹ P- h- 'o rt N Φ td Φ <er d Φ H φ 3 Φ X) hf hf d: hf P- DJ rt SK rt P- tr tr PJ <0 er 0 Φ 0 Φ 0 Φ Φ <0 CΛ cn n Φ rt n tr 0 0

Φ o 3 d Φ φ N d Φ 03 Φ cn cn 0 P- hf tr φ _^ 0 er 03 rt P> hj Φ tr hf PJ Hi CΛ

P- Ό P- 0 hh hf dn H rt 0 Φ Φ rt d ^h d er PJ hf φ Φ cn Φ φ Φ - ¹ P- P- rt d O XS

P * TJ rt 03 Φ £ Φ 03 tr p ^ - 0 h- ¹ hf hf Φ d P- 0 3 hf z hj er P- hj d P "Ό P ¹ Φ CΛ hj o

Φ φ rt CΛ 0 Φ hj φ J Φ Xi p- er PJ O P- 0 0 0 P- er φ N Φ cn pj: Φ tr rt P- Z 03 3 hi - Φ ω DJ ^ Hl er P- Φ 03 cn ^ er 0 tr rt rt P- P ^J Φ cn Xi rt hf π Φ 0 φ φ DJ rt

Φ d P ¹ rt r "α W d: P- Φ 0 hj Φ rt Φ i- ^ Φ rt d Φ rt 0 od O P- φ rt hj hj Φ hj rt rt P-

P- CΛ hj 3 d P- tr Φ Φ P- hf 0 Φ hj P- 0 0 P "tr 03 0 φ CΛ - o φ α PJ P- Φ

0 03 Φ Φ 0 0 hf d Ό PJ = 3 o 03 d Φ Φ rt α P ¹ Xi O 0 P- £ Φ d O hj

Φ cn n 03 hf rt tK 0 cn tr rt PJ td φ P 0 CΛ tK 0 0 hj • Φ cn φ Z Φ Φ Φ 0 CΛ 0 Φ hf 3 O p - φ CΛ P- o 03 O Φ Φ P- φ ω hh o 03 hj ZN o CΛ M n Φ 0

Φ Φ p- <OZ 3 cn P ¹ hj 0 0 DJ hf φ d 3 cn P- td td Φ Φ P- er CΛ P- N α

Φ tr Φ 3 PJ O Φ 3 tr 0 P-

W tr O 0 0 3 H d DJ P- 0 g Φ cn P- P- P- Hi Φ P- 0 z d 0: rt Φ

P- hf tr φ hj rt hf d d tr 0 P- α P- hh hj tr d P- rt 0 0 z cn P- P- 0 hj P- 0 CΛ 0

0 Φ Φ Φ CΛ tr d p. 0 hh φ rt Φ n - rt tr rt 0 0 03 Φ φ CΛ 03 P- CΛ 03 CΛ hj Φ 0 Φ P- z Z

N hj hi Ξ M Φ hf tr P- Φ p- P- hi PJ cn hf n cn n n CΛ Φ Φ Φ

Φ φ Hl w tr 03 0 tr PJ N P- P- rt z 03 P- o P- P 0 O P- tr P- O. tr tr Φ 0 hf P "0

P ^ hf w O ü hf φ DJ 0 Φ 0 0 ^ dd φ Φ rt 0 J n 03 h- ¹ Φ Φ n πd rt Φ P- P. hh

PJ P- P 'tr ¹ hf n

0 3 rt α 0 DJ DJ 0 P- 0 Φ rt tr n 0 hj tr d 0 0 Φ tr

M o

0 03 O d: P- * • rt P- 0 03 -> 0 P- rt Φ tr d Z 0 hf 0 Φ hj

P- hj Φ 1 er P- CΛ o hj n α P "N φ o d p- Φ Φ M o Λ Q. P- 03 α P- 3

PJ 0 P- 0 π Φ CΛ cn 0 ∑: J tr φ INI DJ Φ CΛ <! 0 0 0 cn hj P- hj n J hj φ φ o C- DJ 3 hj n hj hf rt φ cn Φ P "rt hj td h- '0 o cn 03 φ 0 3 tr cn P- 0 hf tr Φ er rt

Φ P- tr t O 0 P ^J P- ds: ¹ rt tK 0 DJ td cn 0 rt P- Φ P- n rt Di rt P- 0 • Φ P ¹ O d tr Φ Φ hf o 0 er tK o P - rt P-

P n πd N d 0 hj O

P- tr d 0 O P- P- - hj 03 o N P 3 φ O Φ O Ό 0 Φ o rt DJ Φ P> Φ 0 Φ 0

0 et 0 0 tr φ n td rt cn P- 3 0 d N p 3 P- hf hf 3 Ό cn P ¹ 0 rt h- ¹ hj ~. 0 03 hj Φ Φ d 03 • o tr P- do Φ nd 3 03 d CΛ d 0 α Φ φ rt ω P 'rt P- 0

0 Φ P "rt 0 0 £ 0 P ¹ d er φ O 0 φ 0 P- d P ¹ Φ tr d rt> πd hj o N 0

O 03 0 α P "φ 03 o 1 0 Φ 1 hf P- hd rt 0 1 P ¹ Φ hf Φ d IV) PJ o. Φ Φ hf Φ 3 φ Φ tr P- P- P- 1 0 1 P- P ¹ 1 o P ¹ Hi 1 f 0 0

3 0 CΛ 0 P ¹ 1 1 1 03 1 1 1 1 1 1

from central interfaces and, for example, centralized feature control. Furthermore, additional trunk assemblies would have to be installed for their networking and additional connecting cables would have to be laid to connect them. Such private branch exchanges are also not modularly expandable because the switching matrix MTS can only be provided as a whole, for example. This means that, in extreme cases, a new switching matrix with, for example, 4096 connections must be purchased and installed for a single additional connection. In such systems, the transmission rate is limited, for example, by the possibility that only a maximum of 64 kbit or another administratively defined or technically determined amount of data can be transmitted per time slot, which is specified by the ISDN standard. Different data rates for individual communication connections are not possible.

FIG. 2 shows an example of an arrangement for setting up, clearing down and operating communication connections via decentralized devices which are controlled by a central device. A private branch exchange 250 is shown here, for example. Identical components of the device are identified in FIG. 2 with the same reference numerals as in FIG. 1. Obviously there is a separate transport network 700 and an independent control network 310/410 in this communication arrangement. Such a construction of a switching system has the advantage that existing networks, in the form of public or private networks, can be used for the transport network. In addition, only the control network has to be routed to the central facility ZE2.

In this illustration, the digital or analog communication terminals KE1 and KE2 are shown in such a way that they are each connected to connection modules SLMOL and SLM02. Without limiting the invention, however, are in one cυ ω r ιX> P ¹ P> cn o Cn O cn o cn

CΛ 03 S 03 03 <! rt Q. P- DJ z CΛ 03 CΛ e P- d IN) P 3 d

0> φ φ Φ φ Φ Φ O hj Φ P- P ¹ P- PJ 0 PJ rt Φ rt p- 0 dd φ H hj hj 0 P- 0 CΛ 3 DJ hi φ ω φ 0 rt CΛ Φ 0 Φ er φ hj 0 tr 3 £ er h- ¹ PJ n φ 0 hj 0 d. d J 03 hf P- 1

P-> N 3 he trt he P 'Φ tK d öd n CΛ cn rt tS3

0 d the PJ rt rt • hj d tr o hf O hi in rt DJ hh rt d

CΛ hj P ¹ Φ DJ • πd DJ P- 0 3 sd p- d P CΛ IXJ φ dd Φ 03 d Hi P- CΛ er 1> 0 03 sd φ 0 rt d hh hf DJ

0 d: N d CΛ ö <P "cn P- 0 03 cn 03 hf PJ ≤ φ 03 er 0

03 tr Φ PJ J P- P- φ cn Xi cn P ¹ CΛ Φ cn 0 P- hf PJ <DJ 03 hj 0 d P ^J n φ h O rt o Hl P- P- tK P hf d tr Φ hf ω

0 d rt hj n Φ tr tr h3 hj 0 α Φ 0 CΛ 0 O rt p. 0 hf φ

0 hf DJ tr rt rt> P- hf rt N PJ P ¹ hh rt Hl 3 Φ 03 0 er p-

03 PJ hf rt P- d 0 J 0 d hd EP P o Φ O 3 P- P- hf 0 o cn rt P- Φ 03 cn P 0 Φ π hj d hf d P- p. : 0 tr hf

0 hti φ P- 3 rt Z d cn rt <5 £ PJ £ 3 Φ 3 0 Φ φ φ er Q. DJ P- o 0 03 <! Φ DJ 0 XS N Φ 1 d 3 PJ hf DJ P- cn hf Φ d 0 n ö hj φ er o 0 tr 03 O hf ü Hl CΛ rt d rt p Φ φ j 0 0 tr

INI 3 w 0 hj 0 P- hj tr 3 J P- 0 P- PJ P- 0 03 rt rt

I— ¹ P- Φ td 0 rt P- φ rt Φ PJ O 03 O rt 0 φ P- cn d tr 0 P- <p- P 0 hj Φ P- er 0 cn 0 P- Φ d: N 3 DJ Z 0 d hf & rt φ 0 φ Φ hf ^ 0 0 03 Φ p- O CΛ tr Φ 3 d Φ 03

0 P- P- O er hi cn cn O rt Φ Φ 0 0 0: 0 0 rt hf φ n hf Pi hh DJ α NP "0 p- hf P ¹ " • hh er cn CΛ hj rt 03 P 0 φ tr α 0 c- rt J. Φ Φ - 0 O Φ <! rt hj CΛ DJ Φ ö rt 0 03 N Φ hi PO P- hj hf φ φ C PJ rt er 0 DJ

INI cn dd P- er N ≤ tr P-> PJ rt P- 3 hf d P- P- PJ Φ _" d

1 \ J 0 0 03 DJ Z Φ cn o 03 J H rt Φ φ PJ Φ er φ Φ φ rt 0 cn ω 03 03 φ hi φ P- O 3 P £ Φ rt rt P- P- hf 0 rt α 03

N Xi 0 OP ^J 03 P- 1 0 PJ P- 0 0 d (Λ PJ Φ d hi INI 0 tr P- PJ Φ n INI cn cn d O Φ α 0 rt <P- EP Hl

P>: td öd 03 hi 0 tr P- Φ rt P- CΛ 0 d 03 Φ φ φ 0 c- n> α φ 25 d φ φ P "hf 0 0 CΛ d hf CΛ 03 α tr

N tr P- hj Φ 0 0 t-3 Φ P ⁾ Φ α p. Φ 03 0 3 CΛ φ DJ hf

Φ cn Φ φ φ rt over P ¹ <Φ o • Φ 0 P- Φ hf P- φ CΛ ω rt

0 03 0 P- N 25 £ cn φ 0 tr 0 rt P- CJ- rt d rt 0 φ rt Φ rt ^ n Φ Φ 1 0 hf P- Φ d tr N φ N 0 rt rt tK cn hf er O tr 0 hf rt Hi> z PJ φ CΛ DJ: P- Z φ 03 PN o

PJ 0: DJ 3 • ω N DJ d φ rt) hf rt P ¹ Φ Φ cn cn d ⁾ rt Xi P-

P * tr h- 'CΛ rt Φ hf P> ω 0 Φ o 0 Φ rt hf P- 0 CΛ X) 0

Φ hj d O hf cn er hh α 0 o Φ d rt cn Φ 03 z Φ

0 Φ 0 z Φ P- CΛ d: d hf N φ cn P- p- cn • -3 P- P 'tr

0 0 P- o O p- 0 tr d er hf Φ 0 rt Φ hf hf hh O: td «tr tr tr cn α hf 03 d N P- J P- £ 3 α d P- DJ P Φ 0

P- Hi P ⁾ P ¹ rt rt d 0 d hf z CΛ 0 rt Φ P- 0 0 0 • h- ¹ 0

0 d 3 rt 0 rt 0 φ n • rt z cn P ¹ 0 03 hf CΛ α Φ hj hf 0: P- P- ω 03 Φ 03 P- tr φ n PN Φ P- xs α 0

P- cn o 3 P- P »Φ hj cn 0 03 Λ> P P- tr d C 0 no P- £. n Φ cn 0 n er 0 0 er φ o Φ cn P ¹ 0 cn 3 tr hf H tr rt Φ CΛ cn tr Φ φ cn hh o hf d P- 03 rt rt rt cn CΛ td rt Z 0 <n P- P- rt P- c- 0 rt Φ> P »d 0 Φ O er d J φ tr DJ 0 cn> tr Φ d 03 N d 0 do 0 Φ er hf 3 d PJ d Xi 9 hf P- P- Φ er er cn hh 03 rt 3 er <0 0 er PJ er ω 0 P- £ rt 0 03 0 1 d φ N Φ P- cn

P- P- P ¹ tr 0- φ 1 φ d N hf Φ d 0. hf OO

INI P- 0 tr P- PJ: 1 P ¹ 25 ≤ hj Hl o rt P- d tr tr td α α P- DJ P- 0 DJ φ P- d 03 hj 0 0 o P- rt tr

KJ P- d 0 Φ 03 0 rt hj φ 3 N hf Φ DJ Φ α o (Λ 0 DJ

0 P- 1 N 1 d 0 1 p> 1

1 1 P- 0 03 Φ Φ O 0 1 CΛ

ü CJ hυ> P> P »

Cn O cn o cn o cn

rt φ 03 0 hh P- öd tK z rt oa rt hf Z 03 03 td cn er Φ P PJ & P φ o φ P hf Φ φ P o Φ Φ P g ö h hf O d 3 öd XS hf ai er XS Φ dp OPOP tr d DJ PJ hf P dd Φ tr 0 er

03 Φ CΛ CΛ tr a φ P h- '03 P, N hf O tr 0 0 0 z Z Φ hf O Φ P. P ¹ cn OO 0 0 P Φ rt Φ

Φ 0 o 3 hf φ er go Φ 0 φ tr tr P ¹ CΛ h φ O 3 tr 0 Φ PO tr 03 03 hj hf hj

0 hh tr d φ hf £ φ d tr φ 0 P rt tr DJ P 0 0- <J rt er O φ rt cn a Φ P

PJ PJ cn 0 do tr 0 Φ Ό 0 rt d φ J Φ rt O a P o rt d N Φ Z CΛ d P ⁾ a Φ OO td P ¹ hh 0 03 DJ P hj hf rt d hj N tr d hf P d Φ hf φ O ω 0 d φ hj tr hh

P Hl NN 03 μ- ¹ tr z P PJ tr Hi CΛ rt 0 cn rt O 03 0 Φ hf JP 03 ω CΛ td rt Hi

0 CΛ Φ dd φ P rt DJ P <J CΛ Φ cn rt N d 03 n Φ 0 φ rt PC 0 φ rt tK P Φ Φ hf 0 hf hj 0 nd rt φ DJ O Φ cn Φ o Φ dd tr P Φ 0 hj rt Φ P- 03 0 J <o rt 0

P <tr P a rt rt P Hi ^ 03 tr 3 0 PJ 03 0 d φ 3 hi rt n Φ z tK CΛ ≤ tr 03 o Φ Φ P td Φ 0 hh 3 0 PJ φ INI P "Φ hd P- n CΛ hi 3 P ≤ P> tr hf φ O rt φ Φ 0 hi DJ P tr Φ φ ö 3 3> Φ td Φ CΛ P dd CΛ o tr dn Φ P rt rt hf 0 φ PP Φ cn ≥: EP 0 rt 0 0 £ d 3 er φ 0 0 rt DJ 0 P »tr P tr hj nd φ a cn d rt rt P <Φ hf O rt 1 EP Φ PJ P rt Φ er n Φ 0 P rt a tr

0 P Φ P φ Φ • »0 Φ er DJ P aa N a rt 0 0 0 tr d WP ¹ φ rt tr d CΛ ap ^ - d Φ Φ

03 P "0 cn hf hf Φ hf a Φ do P φ P dd Φ a P φ J er P p- PP 03 d PJ 0 φ _{^ *} rt d er hj er φ 0 n tr φ hf nn Φ 1 hf - ^> Φ 0 rt O Φ a Z 0 rt 03 ^ tr ¹

M 0 Φ 0 N Φ P hj ω tr rt tr tr tr DJ rt hf hi • α 0 Hl P 03 P φ

Cn z 0 03 d hf N 0 rt d £ PJ Φ o Z h- ¹ to PJ CΛ Φ P d PJ d π hj CΛ ohz P o Z Φ N Φ Φ P <Φ CΛ 0 O d 0 d PJ d y- > O 0 £ O <hj tr CΛ a PJ 0 td P rt d 0 cn φ <P 0 d φ P- Φ 03 03 n ~ 0 0 Φ o cn h- '• Φ tr Φ n P hf M d Φ d

03 hj 0 P 0 Φ rt rt 0 hj P ^J tr φ P "tr Φ a hj tr n -> rt hf tr rt rt PJ Hi <JP 0

Φ a n rt hj cn hj 03 CΛ Φ hf 0 P PJ 0 y-- P- Z PJ tr P d er PJ ~ Φ d er o a 03

03 Φ 3 tr z Z DJ Φ o 0 o PJ • φ P DJ d Φ d d P P rt P Hl PJ 0 DJ φ

Φ • DJ Φ P φ <P "0 hj DJ 03 P tr d CΛ z 0 0 n 0 0 03 0 P Z 0 d Φ cn 0

0 0 hf n 0 O Φ 03 0 hf φ tr Hl d P 03 a tr 03 φ α φ er φ a CΛ d P " _* d td d tr P hf 0 ad P ^ O hj Φ J φ rt ω φ 0 d Φ P ¹ rt Φ td 0 er er P P- 0 Φ φ tr P 0 DJ EP P Φ d hj Φ Φ er & 0 0 N CΛ n hf 0 d P 'Φ P tr

Φ 0 P 03 0 PJ td φ 03 03 Φ N rt P n 0 H 0 P hf os: 03 Φ n tr DJ 0 h cn hf Φ rt • 0 P 0 Φ φ - 0 tr Φ xs φ rt Φ hf 03 φ Φ 0 tr Φ 0 aa N tr 2 ω

Z φ P 0 φ 03 td 0 Φ hj ¹ d Φ P a Φ hi 0 rt hj cn cn Φ d M φ cn

<φ CΛ P z ö φ hf 0 hj er P rt hj hj PJ DJ hj rt 0 cn α hj PJ XS N a P hf Ό

Φ P rt 0 φ PJ 0 P • o Φ 0 hf PJ dp rt Φ S er d rt Φ ND ⁾ 0 CJ O φ Φ πd 0 P hf rt Φ φ hf tr φ o EP hf hf PJ d £ Hl DJ rt 0 PJ 0 Φ 0 z \ - ^> p Φ hj 0 CΛ td hf er φ

0 Φ d hf a P trö φ Φ P 3 P 0 Φ rt PJ 0 03 d P Φ rt P rt rt M P Φ

Φ hj Φ φ 0 tΛ rt PJ hf P n φ cn xs 0 0 Z rt a Φ Q. CΛ O 0 hi an P CΛ rt Φ hf <0 03 od tr rt tr 0 PO hj P rt Hl er hf dn CΛ P n Φ PJ PJ a tr?:

N hj d Φ φ Hi 0 Φ d 03 rt O tr P P- er O Φ PJ Φ rt H tr rt CΛ tr rt 3 φ rt Φ Φ rt 0 hf d 03 rt 03 P Φ d td tr d <PJ hj tr 0 "cn n Φ Φ rt N Φ P hf d PP

Φ <03 rt 0 Φ Z PJ CΛ 0 P 0 DJ ω Φ Φ P P rt tr 0 d. P DJ 0 rt 0 0 CΛ

0 o Φ a 0 J Hl er n rt 03 0 d 03 rt P 0 03 Φ Z Φ 3 er d 03 φ Φ hi P hf d Φ tr Φ φ hf d Φ t-3 rt rt tr Φ α P hf ö tr <<DJ hj in rt ZP ¹ Φ 3 Φ hf CΛ Φ -> 0 P er PJ 0 hj er a P Φ h- ¹ P Φ d PZJ Φ Φ P ¹ P> CΛ

• <Φ P rt P d rt 0 h- 'n Φ d PJ PJ Z Φ n 0 n Φ 0 0 φ φ 0 hj hj Cπ DJ rt cn P φ Φ 0 EP 3 P. Φ er rt CΛ tr 03 cn 25 0 0 Φ hf rt tr 03 cn 03 3

P 'er O er DJ rt 0 rt P P tr Φ P rt hj Φ cn P- hf. P. Φ N d t- <Φ P P d P 03 0

Φ P- 0 Φ rt Φ rt hf Z o d Φ er rt xs P a a PJ Φ 0 INI φ 0 03 rt 0 CΛ DJ Φ

Φ PJ α Φ 0 Φ Φ tr a

3 0 0 Φ NO 03 Φ Φ td hf CΛ 0 rt td P rt φ rt a rt d cn -> φ P PJ d 3 CΛ ZP hf 03 NP Φ hi Φ 0 NPP rt rt Φ M CΛ P ¹ cn P 'Φ , cn φ φ

0 0 rt Φ 0 P rt φ na φ rt a 0 rt Φ 0 0 Φ hf hf rt P d 0 rt P φ tK φ hf Φ 0 Φ 03 tr Φ P INI Φ 0 <0 φ d PJ cn hf dnn 0 Φ INI d N rt a hf O 0 d P d Φ Φ td Φ 0 Φ Φ Φ P rt Φ ¹ n Φ 0 tr DJ 03 0 d P rt d

Φ S er £ Φ 3 Φ 0 Φ M 0 • P rt hj 3 hf 03 a hj Φ tr D ⁾ 03 Φ t- ¹ cn hf 03 Φ 0

CΛ a xs DJ φ PJ hf 3 tr rt 0 N er PJ 03 J d 0 P CΛ 0 Φ £ d 0 03 φ φ cn n <5 d PP o PN th S! 03 PPP ¹ Hl EP 0 Φ P 3 1 P φ CΛ hj Φ hj P "P tr Φ Φ 0 Φ rt 0 φ d Φ Φ Φ CΛ 0 3 Φ • 03 td cn Φ DJ 0 y- ¹ rt Xi 0

• PJ Hi CΛ PJ hf 0 03 hj 0 hf N hf P 1 OP 0 CΛ CΛ PP hj d 1 1 Φ P ¹ Φ

Xi hf φ 1 1 φ DJ d 0 1 1 d cn NPP 0 P φ p ^ - hh d hj ω 1 0 hf 1 rt φ d Φ 0 1 1 hf 1 Φ P a 1 Φ 1 1 hj 1 rt 1 1

ö hd 0 rt £ CΛ DJ aa er a ö hf XS <cn 0 tr d rt rt a <5 0: a CΛ Φ r | CΛ 25 Φ 03 a φ P ¹

IN) d P- hj P- rt Φ Φ P- Φ P- P- o φ Φ P- Φ d P- P- Φ Φ er φ rt P- P- o Φ P- Φ o P- cn

P> tr DJ rt Φ CΛ hj hj 0 N Φ o H hf 0 t 'd O CΛ hj hj Φ N φ 0 03 tr rt 0 0 hf 0 o

Cn tr DJ da Φ cn tr rt tr PJ P- tr 0 O σ hj φ d Φ d 0 NNZ rt N rt rt Φ a Φ to N £ d 0 Φ rt P- P- cn rt φ rt cn tr to P- 0 φ hj hj P- Φ φ Φ er ω Φ P- φ hf φ z Φ 0 rt ^¬ d Φ 0 Φ P- tr Φ Φ Φ φ 0 N rt hi rt INI P- ir ⁴ Φ

OOH hf d P ¹ φ P "03 hf N 0 hj a P- o P- p- 03 az hj d Xi co rt d 0 rt φ 0 cn

N 0 P- 0 J P- a DJ Z 03 Φ d 0 0 03 N 0 s Φ d φ PJ 0 hj CΛ Φ P- Φ rt

P- ¹ z ω 0 N 03 P- rt d P- P ¹ Φ 0 0 CΛ Z hi 0 P- h- ¹ 03 P- N rt er hj P- CΛ Φ φ P- <hf z CΛ CΛ Φ 0 0 φ P- CΛ a 03 tr <<P- P- tr 03 rt φ cn <Φ Φ Φ

P- Φ Φ cn ä rt tr

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a second decentralized device, any number of such first decentralized devices can be connected to it via respective first communication connections. Further, on the second local device DZ10 first decentralized devices DZ102, ZD105 and DZ108 via first communi ^¬ munication 2102, 2105 and 2108, respectively. The functionality of the second decentralized facilities for message traffic is essentially identical. First decentralized devices DZ202, DZ207 and DZ237 are connected to the second decentralized device DZ20 for the exchange of messages with the central control device ZE2 via first communication connections 2202, 22207 and 2237. In a favorable configuration of an arrangement, the first decentralized devices DZ12 to DZ 237 are designed as connection modules for communication terminals SLMO. The first communication connections 2012 to 2237 to the respective first decentralized devices are generally connections via which time-critical control messages are transmitted. For this purpose, the HDLC method between the first decentralized device and the second decentralized device is used as the first communication protocol. These first communication connections can advantageously be made in the form of a backplane bus of a second decentralized device. This variant of the embodiment makes it possible to use, as the first decentralized devices, assemblies which are used in conventional systems 150 for the connection of communication terminals.

The second decentralized communication devices are connected to the central control device ZE2 over greater distances, via LANs (local area networks) or ANs (eit traffic networks) such as, for example, Ethernet or ATM connections. On these second communication connections, a layer protocol in the manner of the ISO (Open Systems Interconnect) protocol is dealt, which consists of seven layers, the lowest layer being the physical layer, the second co O lV> MP ¹ P 'cn O Cn O cn o Cn

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different buildings can be accommodated, which are connected by a private branch exchange. In order to manage the message traffic from the first decentralized devices to the central control device, a message collecting and distributing device is provided in the second decentralized device, which acts as a representative communication partner of the first decentralized devices and the message traffic between the central control device and the first coordinated decentralized facilities.

Peripheral devices previously used are still connected to ZE2 via a device (not shown) DCL. An additional software module decides whether messages are sent as before via DCL or via the IP route and thus via the Ethernet connection. In the opposite direction, this software also maps both inputs (DCL and IP) onto one. The additional software module thus provides a uniform interface in the direction of system software and hides the split into two different transmission paths and types.

In connection with the reference numerals used in the different figures, it should also be noted that identical reference numerals also relate to communication devices or components of communication arrangements of the same type. The second communication connections to the central control device can be implemented on a wide variety of communication media, it being possible to use the Internet protocol on layer 3 and the transmission control protocol TCP on layer 4. Different mixed variants are conceivable here. This protocol structure ensures that messages can be exchanged system-wide using a wide variety of communication media from layer 3 onwards. FIG. 4 shows a detailed view of the private branch exchange 450 which is shown in FIG. 3. To illustrate ^¬ lichung individual elements of the second decentralized Einrich ^¬ tung DZ1 and the central control device ZE2. As can be seen, there is a first communication link

KV1, for example, is designed as a backplane printed circuit bus of a second decentralized device DZ1, where the first communication connections run from 2012 to 2019. A decentralized switching device CS1 has a conversion device HDLCl, IPl which contains the HDLC protocol used on the first communication link KV1 implements the OSI layer protocols used on the second communication link 1001 and vice versa. The decentralized switching device CS1 has a connection 700 to the transport network. A message collection and distribution device HDLC1 is located in the second decentralized device DZ1 for coordinating the message traffic between the first decentralized devices and the central control device. There, messages from the first decentralized devices are collected and forwarded in bundles via the second communication link 1001 to the central control device ZE2. In the opposite direction, the control messages arriving from the central control device are distributed to the respective addressees in the second decentralized device. In order to be able to coordinate and evaluate and process the various messages that are sent to the different second decentralized communication devices or that are sent in the opposite direction from the different second decentralized communication devices to the central control device ZE2, a connection device IP2 is located in the central control device , which is able to evaluate the protocol information on the second communication link 1001 and to restore the original messages, or to pack them in the opposite direction. The connection devices IP1 and IP2 can work on the lowest layers with the Ethernet protocol. This connection co co ι \ JP ¹ P ¹ cn o Cn σ Cn o Cn

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puts. The implementation of the data to be transmitted according to the Internet Proto koll ^¬ m an ATM cell stream for the device ATM1 can be done either in IPM1 or in ATM1. The data connections 1100 and 1200 shown are not necessarily lines in the physical sense, but rather function block interfaces, which can also be designed as software interfaces, for example for a transfer in the memory.

Furthermore, an internal connection function IVF is shown, which enables connected terminal devices to access the transport network 700. All these facilities are part of a decentralized switching facility CS1. The message traffic takes place via a second communication connection 1001, which is designed as an ATM connection. In the first central unit EZE2, the same components are present for a decentralized switching facility CS3 as in CS1, they are only marked with the prefix "Z" for distinction and fulfill the same functions as the components of the same type in CS1. Here, however, a protocol conversion of the Internet protocol takes place via the ATM network according to the Internet protocol on the Ethernet. This is done in ZIP or m ZETH. Information between these components is exchanged via an internal Z100 connection line. The Ethernet connection module is connected to the second central unit ZZE2 via the second communication link 2020 to an ethernet access module ETH. Such an arrangement decouples the ATM access from the central control device ZE2. In this way, a second central unit ZZE2 can be constructed essentially in the same way as a device ZE2, which was described in FIG. 2. It is therefore not necessary to make complex changes in an existing system in order to enable it to communicate on an ATM network in accordance with the Internet protocol. This property is provided by the first central unit EZE2. While in known devices the polling of the first decentralized device DZ15 and DZ12 from the second central len unit ZZE2 was carried out, this is now done from a proxy module HDLCl in the second decentralized facility DZl.

Claims

claims

1. A method for coupling a central control message ^¬ means with decentralized communication devices having the following features: a) message traffic takes place on at least two partial links (KV1, 1001) instead; b) different communication protocols are used on the partial links; c) a respective message is transmitted directly as such with the respective communication protocol on the partial link.

2. The method of claim 1, wherein the message for the transfer from one type of communication protocol to another type of communication protocol is first unpacked from the protocol layers of one protocol and then m the protocol layers of the other protocol is packed.

3. The method as claimed in one of the preceding claims, in which the HDLC method is used in a first communication protocol on a lower protocol layer level and the Ethernet protocol or the ATM protocol is used in a second communication protocol on a lower layer.

4. The method according to claim 2 or 3, in which the Internet protocol is used on a network switching protocol layer.

5. The method according to any one of the preceding claims, in which a control message is transmitted.

6. The method according to any one of the preceding claims, in which, in the event that messages are sent from a plurality of first decentralized devices (DZ12, ..., DZ237), these are transmitted according to _f a first partial link (2012, ..., 2237) bundled in a second decentralized facility (DZl, ..., DZ20) and transmitted on only a second partial link (1001, ..., 1020).

7. The method of claim 6, wherein the plurality of first groups of (DZ12, DZ15, DZ19) and second decentralized ESTABLISHMENT ^¬ gene (DZL) are managed.

8. The method according to claim 7, wherein the messages from / to the second decentralized devices (DZl, ..., DZ10, DZ20) are first sorted in the central control device (ZE2) and then processed.

9. Arrangement for message coupling of a central control device with decentralized communication devices, a) with at least one first decentralized communication device (DZ12, ..., DZ237) for receiving and / or submitting a message, b) with at least one second decentralized communication device (DZl,. .., DZ20) for collecting and / or distributing messages, c) with a central control device (ZE2) for submitting and receiving messages, d) with at least one first communication connection

(2012, ..., 2237) between the first and the second communication device, e) with a second communication connection (1001, ..., 1020) between the second decentralized communication device (DZl, ..., DZ20) and the central control device (ZE2), wherein the second communication connection is designed as an Internet or ATM network, and the first communication connection is designed as an HDLC-based connection.

10. The arrangement according to claim 9, wherein the second communication link (1001, ..., 1020) is designed as a coaxial cable or as an optical waveguide. Φ d - _^ d

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15. The arrangement according to claim 14, wherein the second central device (ZZE2) has the device for processing messages (DCL2).

16. The arrangement as claimed in one of claims 14 to 15, in which the central control (ZE2) has means for controlling a switching matrix for the creation of time slot multiplex connections, and these means are in operative connection with the means for processing messages (DCL2).