ZA792941B - An indirectly controlled telecommunications exchange - Google Patents

An indirectly controlled telecommunications exchange

Info

Publication number
ZA792941B
ZA792941B ZA792941A ZA792941A ZA792941B ZA 792941 B ZA792941 B ZA 792941B ZA 792941 A ZA792941 A ZA 792941A ZA 792941 A ZA792941 A ZA 792941A ZA 792941 B ZA792941 B ZA 792941B
Authority
ZA
South Africa
Prior art keywords
stage
time channel
development
control unit
development stage
Prior art date
Application number
ZA792941A
Inventor
D Botsch
K Bruninghaus
Original Assignee
Siemens Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of ZA792941B publication Critical patent/ZA792941B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Telephone Set Structure (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Special Spraying Apparatus (AREA)
  • Rehabilitation Tools (AREA)
  • Building Awnings And Sunshades (AREA)

Abstract

1. Indirectly controlled exchange system comprising time channel connection paths, in particular a telephone exchange system, characterised in that the extension and development stages provided for the system are classified as follows : a) the one-stage, non-blocking time channel switch (TSU) of the first development stage (LTG1) which is equipped with a switch control unit (SESC) and with an attenuation circuit (ATU) is connected to subscriber connection circuits (t1 ... t32 ...) each of which possesses individual BORSHT devices and possibly filters and PCM codecs ; the time channel switch (TSU) is also connected to a signal circuit (SEU) with sound generator, ringing tone generator, code transmitter and receiver ; the subscriber connection circuits (t1 ... t32 ...), the signal circuit (SEU) and the switch control unit (SESC) are connected to a decentral control unit (GP) comprising control means (SSP), processor (PU) and store (MU) via an associated signal buffer (SBU) ; b) for the second development stage the time channel switches (TSU ...) of certain of the first development stages (LTG1, LTG2, LTG3) are connected in all combinations via intermediate lines (z12, z13, z23) via which extend time channels ; in addition the decentral control units (GP ...) are connected by the time channel switches (TSU) of the first development stage to an appropriately constructed central control unit (CP) which co-operates in the establishment and disestablishment of connection paths which extend via a plurality of the first development stages (LTG1, LTG2) ; c) in the third development stage the intermediate lines (z12, z13, z23) of the second development stage which serve to interconnect time channel switches of the first development stage which are provided in a large number, lead, as intermediate lines (zz) of the third development stage, to a one-stage central switching network (SN) which is equipped with a plurality of further time channel switches (TSU1 ... TSUm) and with its own switching network control (SGC) which is connected to the central control unit (CP) and via which switching network connections may be switched through between these intermediate lines (zz) in that they are in each case confined to time channels extending via these intermediate lines (zz) ; d) in further development stages the central switching network (SN) possesses two time channel switching stages between which one or more than one space channel switching stage is interposed.
ZA792941A 1978-06-14 1979-06-13 An indirectly controlled telecommunications exchange ZA792941B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782826063 DE2826063A1 (en) 1978-06-14 1978-06-14 INDIRECTLY CONTROLLED SWITCHING SYSTEM WITH TIME CHANNEL LINKS, IN PARTICULAR TELEPHONE SWITCHING SYSTEM

Publications (1)

Publication Number Publication Date
ZA792941B true ZA792941B (en) 1980-06-25

Family

ID=6041774

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA792941A ZA792941B (en) 1978-06-14 1979-06-13 An indirectly controlled telecommunications exchange

Country Status (7)

Country Link
EP (1) EP0006133B1 (en)
JP (1) JPS55697A (en)
AT (1) ATE899T1 (en)
BR (1) BR7903752A (en)
DE (1) DE2826063A1 (en)
FI (1) FI73855C (en)
ZA (1) ZA792941B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3104002C2 (en) * 1981-02-05 1984-01-26 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for telecommunication exchanges, in particular PCM telephone exchanges, with a time division multiplex switching arrangement with time slot multiples
GB2130049B (en) * 1982-10-21 1986-01-29 Plessey Co Plc Method of growth of a digital switchblock
JPS625760A (en) * 1985-07-01 1987-01-12 Nec Corp Telephone exchange
DE3731155C1 (en) * 1987-09-17 1988-11-03 Telefonbau & Normalzeit Gmbh Method for controlling the establishment and termination of a connection in a telecommunications system, in particular a telephone exchange, which switches digitally according to the PCM principle
CH678782A5 (en) * 1989-05-31 1991-10-31 Siemens Ag Albis
DE60034457T2 (en) 2000-10-13 2008-01-10 Nvidia International, Inc. Modular and extensible telecommunication system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3517174A (en) * 1965-11-16 1970-06-23 Ericsson Telefon Ab L M Method of localizing a fault in a system including at least two parallelly working computers
DE1965314C3 (en) * 1969-12-29 1974-10-17 Siemens Ag, 1000 Berlin Und 8000 Muenchen Method for operating a data processing arrangement with two data processing systems
DE2021049B2 (en) * 1970-04-29 1973-02-01 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt CIRCUIT ARRANGEMENT FOR CIRCUITING MESSAGE INFORMATION BETWEEN SELECTABLE PARTICIPANTS USING BOTH TIME AND SPACE MULTIPLE COUPLING AREAS
DE2104298C3 (en) * 1971-01-29 1974-01-10 Siemens Ag, 1000 Berlin U. 8000 Muenchen Arrangement of two data processing systems, each controlled by a program control unit
DE2211400C2 (en) * 1972-03-09 1974-02-21 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Two-stage time division switching system
DE2225703C2 (en) * 1972-05-26 1974-06-06 Siemens Ag, 1000 Berlin Und 8000 Muenchen Method for connecting time division multiplex lines of a time division multiplex telecommunication center which transmit PCM signals
DE2602159B2 (en) * 1976-01-21 1980-11-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Circuit arrangement for telecommunications switching systems, in particular telephone switching systems, with switching networks and with central and partially central facilities

Also Published As

Publication number Publication date
FI73855B (en) 1987-07-31
FI791895A (en) 1979-12-15
BR7903752A (en) 1980-02-05
DE2826063C2 (en) 1988-04-21
JPS55697A (en) 1980-01-07
DE2826063A1 (en) 1979-12-20
ATE899T1 (en) 1982-05-15
FI73855C (en) 1987-11-09
JPS6337999B2 (en) 1988-07-27
EP0006133B1 (en) 1982-04-21
EP0006133A1 (en) 1980-01-09

Similar Documents

Publication Publication Date Title
ATE9126T1 (en) DIGITAL TIME-MULTIPLEX TELECOMMUNICATION SYSTEM.
CA2082608A1 (en) Multichannel Telephonic Switching Network with Different Signaling Formats and Cross Connect/PBX Treatment Selectable for Each Channel
SE7900617L (en) TIME MULTIPLEX TELEPHONE SWITCH SYSTEM
GB1124448A (en) Pcm switching arrangement
US3204033A (en) Interconnecting network for a telecommunication system
ATE153203T1 (en) PRODUCTION OF TELEPHONE CALL PATHS IN BROADBAND COMMUNICATION NETWORKS
GB1464002A (en) Time division switching systems
US3458658A (en) Nonblocking switching system with reduced number of contacts
ZA792941B (en) An indirectly controlled telecommunications exchange
GR3003419T3 (en) Circuit arrangement for centrally controlled time division multiplex telecommunication exchanges, especially pcm telephone exchanges, with line groups connected to a switching network
US4602363A (en) Expansion apparatus for use in communication systems
US4571721A (en) Composite concentration system
ES8405223A1 (en) Modular self-routing PCM switching network with virtual-channel routing control for distributed-control telephone exchanges.
US4045617A (en) Telecommunication switching network having a multistage reversed trunking arrangement
US3106615A (en) Communication switching system
GB1560192A (en) Continuously expandable switching network
GB1471364A (en) Electronic telephone system
US4188509A (en) Tone signalling arrangement for a telecommunications exchange
US3657486A (en) Time division multiplex pax of the four wire type
US3414681A (en) Speech contact network in a telephone system
EP0336301B1 (en) One-sided switching network
KR100360612B1 (en) A general switch and switching method
ES224291A1 (en) Automatic telecommunication exchanges
JPS60126997A (en) Exchange system for line concentration stage
Bellman et al. Considerations on analog and digital electronic switching networks and their applications