ZA847441B - A reverse trunking switching network for telecommunications exchange systems - Google Patents

A reverse trunking switching network for telecommunications exchange systems

Info

Publication number
ZA847441B
ZA847441B ZA847441A ZA847441A ZA847441B ZA 847441 B ZA847441 B ZA 847441B ZA 847441 A ZA847441 A ZA 847441A ZA 847441 A ZA847441 A ZA 847441A ZA 847441 B ZA847441 B ZA 847441B
Authority
ZA
South Africa
Prior art keywords
time
connection
subsidiary switching
switching networks
channels
Prior art date
Application number
ZA847441A
Inventor
Heiko Sorgenfrei
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 ZA847441B publication Critical patent/ZA847441B/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)
  • Time-Division Multiplex Systems (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Telephonic Communication Services (AREA)
  • Structure Of Telephone Exchanges (AREA)

Abstract

1. A switching network with reversed trunking and associated connection switch-through with connection path reversal, in particular for telephone exchange systems, wherein the subscriber terminals are connected to inputs of input subsidiary switching networks (e.g. TK1, TK6), and wherein further subsidiary switching networks (TK2, TK5) are provided, and wherein the input subsidiary switching networks (e.g. TK1, TK6) and the further subsidiary switching networks (TK2-TK5) are formed by time channel couplers, and wherein the intermediate lines which connect the subsidiary switching networks (TK2-TK5) including the input subsidiary switching networks (e.g. TK1, TK6) comprise time channel lines and, in each subsidiary switching network (TK2-TK5), are connected to associated inputs in accordance with the principle of reversed trunking with regard to the respective subsidiary switching network itself, as a result of which all the connection paths within each of the subsidiary switching networks (TK2-TK5) are reversed, and wherein, for a time channel connection switched-through via the connection paths, time channels are consecutively seized by a plurality of time channel lines in that the two time channels, seized in respect of each time channel connection and each time channel line, correspond to one another in respect of their time slots (a3, b3... a29, b29), characterised in that on the one hand for the time channels (a3, a5, a7, a11, a22, a24, a29) included in a time channel connection for one of the two transmission paths (a..., b...) switched-through in respect of each time channel connection, and on the other hand for the time channels (b3, b26, b24, b20, b9, b7, b29) arranged in series in the same spatial sequence for the other of these two transmission paths, on the basis of the path finding, two series of time slots are selected in which the time slots of the two time channels, which correspond to one another in respect of this sequence, for the two transmission paths (a..., b...) - thus of the time slots in the respective pulse frame, the two mutually-corresponding time slots from the two series time slots - have time slot values which are complementary to one another and that by virtue of the selection of time slots for the time channels for the first transmission path (a...) in a constantly ascending progression, but in the smallest possible time slot jumps from time channel to time channel, not only for this transmission path (a...) but at the same time and automatically a minimum time jump is achieved for the overall time channel connection for the other transmission path (b...), i.e. equal time jumps are achieved for the two transmission paths (a..., b...).
ZA847441A 1983-09-23 1984-09-21 A reverse trunking switching network for telecommunications exchange systems ZA847441B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833334516 DE3334516A1 (en) 1983-09-23 1983-09-23 COUPLING PANEL WITH REVERSE, IN PARTICULAR FOR TELEPHONE SWITCHING SYSTEMS

Publications (1)

Publication Number Publication Date
ZA847441B true ZA847441B (en) 1985-05-29

Family

ID=6209907

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA847441A ZA847441B (en) 1983-09-23 1984-09-21 A reverse trunking switching network for telecommunications exchange systems

Country Status (6)

Country Link
EP (1) EP0140142B1 (en)
JP (1) JPS6089193A (en)
AT (1) ATE31857T1 (en)
DE (2) DE3334516A1 (en)
FI (1) FI843726L (en)
ZA (1) ZA847441B (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2910284C2 (en) * 1979-03-15 1984-08-16 Siemens AG, 1000 Berlin und 8000 München Expandable switching network in modular design with connection path reversal for telecommunications, in particular telephone switching systems
DE3065342D1 (en) * 1979-03-19 1983-11-24 Procter & Gamble Chromium acetylacetonate as a dietary supplement and pharmaceutical agent

Also Published As

Publication number Publication date
DE3334516A1 (en) 1985-04-11
EP0140142A1 (en) 1985-05-08
FI843726L (en) 1985-03-24
EP0140142B1 (en) 1988-01-07
FI843726A0 (en) 1984-09-21
DE3468605D1 (en) 1988-02-11
ATE31857T1 (en) 1988-01-15
JPS6089193A (en) 1985-05-20

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