IE780270L - Expandable switching network - Google Patents

Expandable switching network

Info

Publication number
IE780270L
IE780270L IE780270A IE27078A IE780270L IE 780270 L IE780270 L IE 780270L IE 780270 A IE780270 A IE 780270A IE 27078 A IE27078 A IE 27078A IE 780270 L IE780270 L IE 780270L
Authority
IE
Ireland
Prior art keywords
stage
switching network
network
stages
switching
Prior art date
Application number
IE780270A
Other versions
IE46058B1 (en
Original Assignee
Int Standard Electric Corp
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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of IE780270L publication Critical patent/IE780270L/en
Publication of IE46058B1 publication Critical patent/IE46058B1/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)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Facsimiles In General (AREA)
  • Toys (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
  • Dry Shavers And Clippers (AREA)

Abstract

In this continuously expandable modular switching network, incoming traffic infiltrates the network only to the extent required in order to set up the desired connection. For an extension involving additional switching matrices (110, 112, 113) in two stages, there is no need to alter the internal or external connection lines. A technique is employed in which the outputs (104, 106) of the switching elements of any given stage (stage 1) are connected only to the inputs of switching elements of higher-order stages (stage 2). So-called reversal points (114, 116, 118, 120) of the aforementioned second stage are used to switch a connection. <IMAGE> [GB1560192A]
IE270/78A 1977-02-07 1978-02-07 Continuously expandable switching network IE46058B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76639677A 1977-02-07 1977-02-07

Publications (2)

Publication Number Publication Date
IE780270L true IE780270L (en) 1978-08-07
IE46058B1 IE46058B1 (en) 1983-02-09

Family

ID=25076315

Family Applications (1)

Application Number Title Priority Date Filing Date
IE270/78A IE46058B1 (en) 1977-02-07 1978-02-07 Continuously expandable switching network

Country Status (32)

Country Link
JP (1) JPS53121409A (en)
AR (1) AR228558A1 (en)
AT (1) AT373753B (en)
AU (1) AU516579B2 (en)
BE (1) BE863708A (en)
BR (1) BR7800583A (en)
CA (1) CA1101531A (en)
CH (1) CH626209A5 (en)
DD (1) DD134830A5 (en)
DE (1) DE2803065C2 (en)
DK (1) DK52678A (en)
EG (1) EG13344A (en)
ES (1) ES466680A1 (en)
FI (1) FI74181C (en)
FR (1) FR2379962B1 (en)
GB (1) GB1560192A (en)
GR (1) GR66169B (en)
HK (1) HK41980A (en)
HU (1) HU182886B (en)
IE (1) IE46058B1 (en)
IN (1) IN150205B (en)
IT (1) IT1092562B (en)
MX (1) MX143916A (en)
NL (1) NL7801311A (en)
NO (1) NO150540C (en)
PL (1) PL131069B1 (en)
PT (1) PT67621B (en)
RO (1) RO76265A (en)
SE (1) SE439091B (en)
TR (1) TR20444A (en)
YU (1) YU40028B (en)
ZA (1) ZA78599B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4201889A (en) * 1978-03-17 1980-05-06 International Telephone And Telegraph Distributed control digital switching system
US4201890A (en) * 1978-03-17 1980-05-06 International Telephone And Telegraph Multiport digital switching element
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
FR2456434A1 (en) * 1979-05-11 1980-12-05 Servel Michel MULTIPLEX SWITCHING NETWORKS WITH TIME DIVISION BUFFER MEMORY OF THE ASSOCIATIVE TYPE ADDRESSABLE BY ITS CONTENT
FR2461421A1 (en) * 1979-07-06 1981-01-30 Servel Michel TDM switching circuit with buffer memory - uses control word to switch data word through delay circuits according to weight of control bit associated with relevant delay stage
FR2555005B1 (en) * 1983-11-10 1989-03-24 Thomson Csf Mat Tel TRAFFIC-BASED GROWTH CONNECTION NETWORK FOR ASYNCHRONOUS TIMER
DE3906545A1 (en) * 1989-03-02 1990-09-13 Ant Nachrichtentech METHOD FOR THE STEP-BY-STEP EXTENSION OF A THREE-STAGE COUPLING PANEL

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1803389B2 (en) * 1968-10-16 1971-07-01 Siemens AG, 1000 Berlin u. 8000 München CIRCUIT ARRANGEMENT FOR REMOTE COMMUNICATION SYSTEMS, IN PARTICULAR TELEPHONE SWITCHING SYSTEMS, WITH A COUPLING FIELD FOR FOUR-WIRE CONNECTION OF MESSAGE CIRCUITS
DE1235379B (en) * 1964-04-03 1967-03-02 Siemens Ag Arrangement for telecommunications switching systems, in particular telephone switching systems
DE1762057B2 (en) * 1968-03-29 1972-01-05 Siemens AG, 1000 Berlin u 8000 München CIRCUIT ARRANGEMENTS FOR REMOTE COMMUNICATION SYSTEMS IN PARTICULAR SPECIAL TELEVISION SYSTEMS WITH ADHESIVE COUPLERS
BE791931A (en) * 1971-12-02 1973-03-16 Western Electric Co TIME INTERVAL EXCHANGER ASSEMBLY
AT338340B (en) * 1974-03-29 1977-08-25 Siemens Ag PCM TIME MULTIPLEX COUPLING NETWORK
US3963872A (en) * 1974-06-03 1976-06-15 North Electric Company Non-symmetric folded four-stage switching network
DE2443941C2 (en) * 1974-09-13 1976-09-09 Siemens Ag CIRCUIT ARRANGEMENT FOR REMOTE COMMUNICATION SYSTEMS, IN PARTICULAR TELEPHONE SWITCHING SYSTEMS, WITH COUPLING AREAS WITH REVERSE GROUPING
DE2639411C2 (en) * 1976-09-01 1981-09-24 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for telecommunication switching systems, in particular telephone switching systems, with switching fields constructed in reverse grouping

Also Published As

Publication number Publication date
FI74181B (en) 1987-08-31
NO150540C (en) 1984-10-31
FI74181C (en) 1987-12-10
IE46058B1 (en) 1983-02-09
NO150540B (en) 1984-07-23
FR2379962B1 (en) 1987-11-06
SE7801318L (en) 1978-08-08
JPS5759997B2 (en) 1982-12-17
PT67621B (en) 1980-10-02
NO780422L (en) 1978-08-08
IN150205B (en) 1982-08-14
GR66169B (en) 1981-01-21
NL7801311A (en) 1978-08-09
IT7819875A0 (en) 1978-02-01
YU40028B (en) 1985-06-30
SE439091B (en) 1985-05-28
DK52678A (en) 1978-08-08
CH626209A5 (en) 1981-10-30
GB1560192A (en) 1980-01-30
BE863708A (en) 1978-08-07
PT67621A (en) 1978-03-01
HK41980A (en) 1980-08-15
YU27578A (en) 1982-06-30
JPS53121409A (en) 1978-10-23
TR20444A (en) 1981-07-14
FI780370A7 (en) 1978-08-08
HU182886B (en) 1984-03-28
AR228558A1 (en) 1983-03-30
FR2379962A1 (en) 1978-09-01
RO76265A (en) 1981-03-30
PL131069B1 (en) 1984-09-29
AT373753B (en) 1984-02-27
DE2803065C2 (en) 1982-08-12
ZA78599B (en) 1978-12-27
MX143916A (en) 1981-07-31
BR7800583A (en) 1978-12-05
PL204476A1 (en) 1978-10-23
CA1101531A (en) 1981-05-19
AU3287778A (en) 1979-08-09
ES466680A1 (en) 1978-10-16
ATA70478A (en) 1983-06-15
EG13344A (en) 1981-06-30
IT1092562B (en) 1985-07-12
DE2803065A1 (en) 1978-08-10
AU516579B2 (en) 1981-06-11
DD134830A5 (en) 1979-03-21

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