IE780270L - Expandable switching network - Google Patents
Expandable switching networkInfo
- 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
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)
- Facsimiles In General (AREA)
- Toys (AREA)
- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
- Dry Shavers And Clippers (AREA)
- Data Exchanges In Wide-Area Networks (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]
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)
| 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 (7)
| 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 |
| 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 |
-
1978
- 1978-01-17 GB GB1786/78A patent/GB1560192A/en not_active Expired
- 1978-01-25 DE DE2803065A patent/DE2803065C2/en not_active Expired
- 1978-01-31 CA CA295,947A patent/CA1101531A/en not_active Expired
- 1978-01-31 BR BR7800583A patent/BR7800583A/en unknown
- 1978-02-01 AU AU32877/78A patent/AU516579B2/en not_active Expired
- 1978-02-01 ZA ZA00780599A patent/ZA78599B/en unknown
- 1978-02-01 IT IT19875/78A patent/IT1092562B/en active
- 1978-02-01 CH CH107678A patent/CH626209A5/en not_active IP Right Cessation
- 1978-02-02 TR TR20444A patent/TR20444A/en unknown
- 1978-02-02 AT AT0070478A patent/AT373753B/en not_active IP Right Cessation
- 1978-02-02 FR FR7802891A patent/FR2379962B1/en not_active Expired
- 1978-02-03 SE SE7801318A patent/SE439091B/en not_active IP Right Cessation
- 1978-02-06 PL PL1978204476A patent/PL131069B1/en unknown
- 1978-02-06 RO RO7893115A patent/RO76265A/en unknown
- 1978-02-06 DD DD78203571A patent/DD134830A5/en unknown
- 1978-02-06 FI FI780370A patent/FI74181C/en not_active IP Right Cessation
- 1978-02-06 NL NL7801311A patent/NL7801311A/en not_active Application Discontinuation
- 1978-02-06 DK DK52678A patent/DK52678A/en not_active Application Discontinuation
- 1978-02-06 GR GR55359A patent/GR66169B/el unknown
- 1978-02-06 PT PT67621A patent/PT67621B/en unknown
- 1978-02-06 YU YU275/78A patent/YU40028B/en unknown
- 1978-02-06 ES ES466680A patent/ES466680A1/en not_active Expired
- 1978-02-07 AR AR271018A patent/AR228558A1/en active
- 1978-02-07 IE IE270/78A patent/IE46058B1/en unknown
- 1978-02-07 HU HU78IE822A patent/HU182886B/en unknown
- 1978-02-07 NO NO780422A patent/NO150540C/en unknown
- 1978-02-07 BE BE2056666A patent/BE863708A/en not_active IP Right Cessation
- 1978-02-07 JP JP1201678A patent/JPS53121409A/en active Granted
- 1978-02-07 MX MX172345A patent/MX143916A/en unknown
- 1978-02-14 IN IN168/CAL/78A patent/IN150205B/en unknown
- 1978-02-26 EG EG75/78A patent/EG13344A/en active
-
1980
- 1980-08-07 HK HK419/80A patent/HK41980A/en unknown
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