GB1432168A - Tdm exchange systems - Google Patents

Tdm exchange systems

Info

Publication number
GB1432168A
GB1432168A GB3517573A GB3517573A GB1432168A GB 1432168 A GB1432168 A GB 1432168A GB 3517573 A GB3517573 A GB 3517573A GB 3517573 A GB3517573 A GB 3517573A GB 1432168 A GB1432168 A GB 1432168A
Authority
GB
United Kingdom
Prior art keywords
transmission
criterion
command
transparent
slot
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB3517573A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
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 GB1432168A publication Critical patent/GB1432168A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605—Fixed allocated frame structures
    • H04J3/1623—Plesiochronous digital hierarchy [PDH]
    • H04J3/1647—Subrate or multislot multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/12—Arrangements providing for calling or supervisory signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/22—Arrangements affording multiple use of the transmission path using time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

1432168 Automatic exchange systems SIEMENS AG 24 July 1973 [25 Aug 1972] 35175/73 Heading H4K To set up a connection in a TDM system in which a plurality of time slots in the same frame can be combined to give a higher capacity channel, a command criterion is read into a storage cell associated with a free time slot at a transmitting station and this command criterion is transmitted in the corresponding time slot to an exchange, the command criterion including information as to which time slots, in association with the slot used for the command criterion, are to be used for the transmission and information as to which type of transmission is to be used i.e. the transmission of coded or uncoded scanned values (so called transparent transmission) or direct pulse-governed transmission (so called non-transparent transmission). The command criterion may also constitute a "call criterion" or alternatively it may be transmitted prior to a "call criterion". When a multi-slot connection is no longer required a special connection clearing signal is transmitted to the exchange. The Specification discusses various binary codings for the command and clearing signals in dependence on the number of slots to be combined and the type of transmission (transparent or non-transparent) to be used. Specification 1,001,903 is referred to.
GB3517573A 1972-08-25 1973-07-24 Tdm exchange systems Expired GB1432168A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2241636A DE2241636A1 (en) 1972-08-25 1972-08-25 SIGNALING PROCEDURE IN TIME MULTIPLEX SWITCHING SYSTEMS

Publications (1)

Publication Number Publication Date
GB1432168A true GB1432168A (en) 1976-04-14

Family

ID=5854421

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3517573A Expired GB1432168A (en) 1972-08-25 1973-07-24 Tdm exchange systems

Country Status (10)

Country Link
BE (1) BE804010A (en)
BR (1) BR7306564D0 (en)
CA (1) CA1037169A (en)
CH (1) CH557120A (en)
DE (1) DE2241636A1 (en)
FR (1) FR2197292B1 (en)
GB (1) GB1432168A (en)
IT (1) IT1030560B (en)
NL (1) NL7311398A (en)
ZA (1) ZA735595B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4805167A (en) * 1986-07-29 1989-02-14 Leslie Ian M Variable data rate channel for digital network

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3176395D1 (en) * 1981-04-30 1987-10-01 Ibm Process to determine the configuration of the active channels in a multiflex communication system, and device therefor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL295510A (en) * 1962-07-19
FR1513888A (en) * 1966-06-27 1968-02-16 Nippon Telegraph & Telephone Communication network
US3639693A (en) * 1968-11-22 1972-02-01 Stromberg Carlson Corp Time division multiplex data switch
DE1947262C3 (en) * 1969-09-18 1973-11-15 Siemens Ag Method for data transmission between two participants in a data network
US3668645A (en) * 1970-05-25 1972-06-06 Gen Datacomm Ind Inc Programable asynchronous data buffer having means to transmit error protected channel control signals
US3699525A (en) * 1970-11-27 1972-10-17 Honeywell Inf Systems Use of control words to change configuration and operating mode of a data communication system
US3705267A (en) * 1971-09-03 1972-12-05 Bell Telephone Labor Inc Supervisory circuit for monitoring the formation and termination of interconnections in a time-division switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4805167A (en) * 1986-07-29 1989-02-14 Leslie Ian M Variable data rate channel for digital network

Also Published As

Publication number Publication date
FR2197292A1 (en) 1974-03-22
BR7306564D0 (en) 1974-07-11
CA1037169A (en) 1978-08-22
NL7311398A (en) 1974-02-27
AU5933373A (en) 1975-02-20
ZA735595B (en) 1974-07-31
BE804010A (en) 1974-02-25
DE2241636A1 (en) 1974-03-07
IT1030560B (en) 1979-04-10
CH557120A (en) 1974-12-13
FR2197292B1 (en) 1977-09-09

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee