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IE780434L - Switching system - Google Patents

Switching system

Info

Publication number
IE780434L
IE780434L IE780434A IE43478A IE780434L IE 780434 L IE780434 L IE 780434L IE 780434 A IE780434 A IE 780434A IE 43478 A IE43478 A IE 43478A IE 780434 L IE780434 L IE 780434L
Authority
IE
Ireland
Prior art keywords
switching network
digital
subscriber
paths
interface
Prior art date
Application number
IE780434A
Other versions
IE46249B1 (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 IE780434L publication Critical patent/IE780434L/en
Publication of IE46249B1 publication Critical patent/IE46249B1/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
    • H04Q11/0407—Selecting arrangements for multiplex systems for time-division multiplexing using a stored programme control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13003—Constructional details of switching devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13102—Common translator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13103—Memory
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13107—Control equipment for a part of the connection, distributed control, co-processing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Multi Processors (AREA)
  • Selective Calling Equipment (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

The switching network (102), which contains switching matrices (104 - 110; 120, 122) arranged in several stages, is connected via common speech paths (204) with a group of interface devices (128), in which analog to digital and digital to analog conversion of the signals from and to the subscriber is carried out. Digital subscriber lines (130, 136, 138) are connected to the switching network 102 via a digital subscriber's apparatus (140). The translators which are present in the database (142) are used as usual to translate the digits keyed by the subscriber; however, they are also used for distributed control of the system, since they work with a single data connection path, which is only a speech path (204), between the interface device and the switching network. Since the interface units (128) control the establishment of connection paths to the switching network, the central processor which was previously required is omitted. This makes it possible to keep down the cost of testing when the program changes. <IMAGE> [GB1583633A]
IE434/78A 1977-03-02 1978-03-02 Distributes control for switching system IE46249B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77371277A 1977-03-02 1977-03-02

Publications (2)

Publication Number Publication Date
IE780434L true IE780434L (en) 1978-09-02
IE46249B1 IE46249B1 (en) 1983-04-06

Family

ID=25099086

Family Applications (1)

Application Number Title Priority Date Filing Date
IE434/78A IE46249B1 (en) 1977-03-02 1978-03-02 Distributes control for switching system

Country Status (35)

Country Link
JP (1) JPS5816798B2 (en)
AR (1) AR223812A1 (en)
AT (1) AT377406B (en)
AU (1) AU516649B2 (en)
BE (1) BE864424A (en)
BR (1) BR7801290A (en)
CA (1) CA1101530A (en)
CH (1) CH627895A5 (en)
CS (1) CS270402B2 (en)
DD (1) DD134905A5 (en)
DE (1) DE2808666C2 (en)
DK (1) DK159709C (en)
EG (1) EG13354A (en)
ES (1) ES467423A1 (en)
FI (1) FI76472C (en)
FR (1) FR2382819B1 (en)
GB (1) GB1583633A (en)
GR (1) GR64106B (en)
HK (1) HK42881A (en)
HU (1) HU181887B (en)
IE (1) IE46249B1 (en)
IN (1) IN149978B (en)
IT (1) IT1115590B (en)
MX (1) MX144372A (en)
NL (1) NL191076C (en)
NO (1) NO154590C (en)
NZ (1) NZ186578A (en)
PL (1) PL125417B1 (en)
PT (1) PT67723A (en)
RO (1) RO76656A (en)
SE (1) SE439566B (en)
SU (1) SU1482540A3 (en)
TR (1) TR20819A (en)
YU (1) YU41390B (en)
ZA (1) ZA781060B (en)

Families Citing this family (6)

* 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
IT1118433B (en) * 1979-03-15 1986-03-03 Cselt Centro Studi Lab Telecom NUMERICAL TELEPHONE SELF-SWITCH FOR LOW DENSITY AREAS
IT1143268B (en) * 1981-01-15 1986-10-22 Cselt Centro Studi Lab Telecom MODULAR STRUCTURE OF DISTRIBUTED CONTROL AND DIAGNOSTIC PCM SWITCHING NETWORK
US4654845A (en) * 1985-03-18 1987-03-31 At&T Parallel call processing system and method
US4689815A (en) * 1985-08-23 1987-08-25 American Telephone And Telegraph Company, At&T Bell Laboratories Controlling multi-port hunt groups in a distributed control switching system
DE3539039A1 (en) * 1985-11-04 1987-05-07 Telefonbau & Normalzeit Gmbh Locally controlled digital telephone switching system, in particular telephone PBX system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1374635A (en) * 1972-08-09 1974-11-20 Gte International Inc Data processing apparatus
DE2331602B1 (en) * 1973-06-20 1975-01-16 Siemens Ag, 1000 Berlin Und 8000 Muenchen Circuit arrangement for an indirectly controlled telecommunications, in particular telephone exchange, with connection sets
GB1450457A (en) * 1974-01-02 1976-09-22 Plessey Co Ltd Telecommunication exchange systems
US3912873A (en) * 1974-01-17 1975-10-14 North Electric Co Multiple fault tolerant digital switching system for an automatic telephone system
US3974343A (en) * 1975-01-10 1976-08-10 North Electric Company Small modular communications switching system with distributed programmable control
FR2341998A1 (en) * 1976-02-17 1977-09-16 Telic Telephone PBAX with modular construction - has base module with microprocessor controlling switching and tone generation

Also Published As

Publication number Publication date
AT377406B (en) 1985-03-25
NL191076C (en) 1995-01-02
CA1101530A (en) 1981-05-19
ATA127778A (en) 1983-08-15
YU41390B (en) 1987-04-30
HK42881A (en) 1981-09-04
PL125417B1 (en) 1983-05-31
NO154590B (en) 1986-07-28
DE2808666C2 (en) 1984-05-30
FI780696A (en) 1978-09-03
SU1482540A3 (en) 1989-05-23
FI76472C (en) 1988-10-10
CH627895A5 (en) 1982-01-29
DK159709C (en) 1991-04-22
CS270402B2 (en) 1990-06-13
PL205021A1 (en) 1979-02-12
AR223812A1 (en) 1981-09-30
FI76472B (en) 1988-06-30
BE864424A (en) 1978-09-01
FR2382819A1 (en) 1978-09-29
GB1583633A (en) 1981-01-28
IT7820544A0 (en) 1978-02-24
NZ186578A (en) 1982-03-16
MX144372A (en) 1981-10-05
DK89278A (en) 1978-09-03
NL7802233A (en) 1978-09-05
EG13354A (en) 1981-06-30
SE439566B (en) 1985-06-17
AU3362578A (en) 1979-09-06
DK159709B (en) 1990-11-19
HU181887B (en) 1983-11-28
AU516649B2 (en) 1981-06-18
CS134078A2 (en) 1989-11-14
PT67723A (en) 1978-04-01
IE46249B1 (en) 1983-04-06
GR64106B (en) 1980-01-24
NO780630L (en) 1978-09-05
BR7801290A (en) 1978-11-28
TR20819A (en) 1982-09-16
DD134905A5 (en) 1979-03-28
IT1115590B (en) 1986-02-03
FR2382819B1 (en) 1986-12-26
RO76656A (en) 1981-04-30
DE2808666A1 (en) 1978-09-07
YU49178A (en) 1982-06-30
JPS53136906A (en) 1978-11-29
JPS5816798B2 (en) 1983-04-02
SE7802272L (en) 1978-09-03
IN149978B (en) 1982-06-19
ES467423A1 (en) 1978-10-16
NO154590C (en) 1986-11-05
NL191076B (en) 1994-08-01
ZA781060B (en) 1979-01-31

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Legal Events

Date Code Title Description
MM4A Patent lapsed