ZA856539B - A method of and apparatus for transmitting data signals - Google Patents

A method of and apparatus for transmitting data signals

Info

Publication number
ZA856539B
ZA856539B ZA856539A ZA856539A ZA856539B ZA 856539 B ZA856539 B ZA 856539B ZA 856539 A ZA856539 A ZA 856539A ZA 856539 A ZA856539 A ZA 856539A ZA 856539 B ZA856539 B ZA 856539B
Authority
ZA
South Africa
Prior art keywords
transmission channel
idle
data signals
status
switching system
Prior art date
Application number
ZA856539A
Inventor
Dietmar Franz
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 ZA856539B publication Critical patent/ZA856539B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/50—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication
    • H04L12/52—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication using time division techniques

Abstract

1. Method for transmitting data signals between subscriber stations (Ttx, Tx) or transmission lines connected to a data switching system (EDS) and a signal processing device (TTU), particularly a signal converter device or multi-addressing device, which is also connected to the data switching system via a plurality of junction lines, comprising a number of transmission channels (K1 to Kn) which corresponds to the number of junction lines and the status signals of which, which indicate idle states or busy states, are stored in the data switching system, wherein on the occurrence of a connection request from a subscriber station or via a transmission line for the transmission of data signals to a transmission channel, the presence of idle-status signals in the data switching system is determined and wherein an idle-status signal indicating the idle state of a transmission channel is changed, when the relevant transmission channel is seized, into a busy-status signal which is only changed into an idle-status signal when the relevant transmission channel becomes ready to be seized again, characterized in that the data signals to be processed, which are received via one of the relevant transmission channels (i.e.K1) are transferred into a storage area, which has just been allocated to the relevant transmission channel for the reception of data signals, of a memory (RAM) which exhibits a plurality of storage areas which can be optionally allocated to the transmission channels, that after this transfer, a further storage area is allocated to the relevant transmission channel (K1) for another transfer of data signals to be processed and an idle status indication signal for this transmission channel is emitted to the data switching system (EDS), by means of which signal the busy-status signal indicating the busy state of this transmission channel is changed into an idle-status signal, and that a storage area allocated to the relevant transmission channel (K1) for the reception of data signals is released again after processing and forwarding of these data signals via a transmission channel (i.e.K2) which may differ from the relevant transmission channel (K1).
ZA856539A 1984-08-29 1985-08-28 A method of and apparatus for transmitting data signals ZA856539B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843431794 DE3431794A1 (en) 1984-08-29 1984-08-29 METHOD FOR TRANSMITTING DATA SIGNALS

Publications (1)

Publication Number Publication Date
ZA856539B true ZA856539B (en) 1986-04-30

Family

ID=6244211

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA856539A ZA856539B (en) 1984-08-29 1985-08-28 A method of and apparatus for transmitting data signals

Country Status (4)

Country Link
EP (1) EP0173281B1 (en)
AT (1) ATE52401T1 (en)
DE (2) DE3431794A1 (en)
ZA (1) ZA856539B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3663612D1 (en) * 1985-02-20 1989-06-29 Siemens Ag Method for transmitting data signals

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2912649C2 (en) * 1979-03-30 1981-10-01 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for the transmission of digital signals between transmitting and / or receiving devices operating with different data transmission procedures and with different data formats via a switching system
DE3030887C2 (en) * 1980-08-14 1985-08-14 Siemens AG, 1000 Berlin und 8000 München Method for establishing connections from subscriber stations or transmission lines connected to a data switching system to signal converters
JPS5768949A (en) * 1980-10-17 1982-04-27 Fujitsu Ltd Buffer memory control system in packet transmission

Also Published As

Publication number Publication date
ATE52401T1 (en) 1990-05-15
DE3431794A1 (en) 1985-09-12
EP0173281A2 (en) 1986-03-05
DE3577507D1 (en) 1990-06-07
EP0173281B1 (en) 1990-05-02
EP0173281A3 (en) 1987-11-04

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