GB979515A - Improvements in or relating to circuit arrangements for automatic switching systems - Google Patents

Improvements in or relating to circuit arrangements for automatic switching systems

Info

Publication number
GB979515A
GB979515A GB17162/63A GB1716263A GB979515A GB 979515 A GB979515 A GB 979515A GB 17162/63 A GB17162/63 A GB 17162/63A GB 1716263 A GB1716263 A GB 1716263A GB 979515 A GB979515 A GB 979515A
Authority
GB
United Kingdom
Prior art keywords
conductor
group
marking
conductors
given
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
GB17162/63A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB979515A publication Critical patent/GB979515A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
    • H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Structure Of Telephone Exchanges (AREA)
  • Relay Circuits (AREA)
  • Road Signs Or Road Markings (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)

Abstract

979,515. Automatic exchange systems. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. May 1, 1963 [May 4, 1962], No. 17162/63. Heading H4K. At least one connecting path exists between each conductor OV of a first group (repeaters as shown) and each conductor LS of a second group (line circuits as shown) through a plurality of sequential switching stages D, C, B, A, connected together by groups of intermediate conductors CD, BC, AB, and each switching stage comprises a plurality of crosspoint switches, each crosspoint having associated with it a series-combination of a rectifier and a relay winding RD, RC, RB or RA connected between a marking conductor MC, MB, MA or ML and either an intermediate conductor connected to the preceding switching stage or a conductor OV of the first group, whilst the common point between the rectifier and the relay winding is connected through a contact of the relay to either an intermediate conductor connected to the next switching stage or a conductor LS of the second group; a marker (not shown) establishes a selected free connecting path between a given conductor OV of the first group and a given conductor LS of the second group by applying marking potentials to the given conductor OV of the first group (by closing an associated contact m as shown) and to the relevant marking conductors so that the relays whose windings are included in the selected connecting path are successively energized, the conductors LS of the second group being connected through a path having a small direct current resistance to a point of constant potential (earth as shown), and, after closure of the relay contact ra connected to the given conductor LS of the second group, the marker applies to the given conductor OV of the first group (by opening an associated contact hc) a potential which is less than the marking potential in absolute value but is sufficient to maintain the relevant crosspoint relays energized, the marking potentials being simultaneously removed from the marking conductors MC, MB, MA, ML.
GB17162/63A 1962-05-04 1963-05-01 Improvements in or relating to circuit arrangements for automatic switching systems Expired GB979515A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL278092 1962-05-04

Publications (1)

Publication Number Publication Date
GB979515A true GB979515A (en) 1965-01-06

Family

ID=19753802

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17162/63A Expired GB979515A (en) 1962-05-04 1963-05-01 Improvements in or relating to circuit arrangements for automatic switching systems

Country Status (9)

Country Link
US (1) US3294920A (en)
AT (1) AT238776B (en)
BE (1) BE631825A (en)
CH (1) CH401166A (en)
DE (1) DE1218539B (en)
DK (1) DK107237C (en)
ES (1) ES287597A1 (en)
GB (1) GB979515A (en)
NL (1) NL278092A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1259396B (en) * 1965-11-17 1968-01-25 Standard Elektrik Lorenz Ag Circuit arrangement for controlling the through-connection of a connection path in a multi-stage switching arrangement

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1244872B (en) * 1965-09-30 1967-07-20 Telefonbau Circuit arrangement for switching matrices in telecommunications, especially telephone switching systems
DE1291793B (en) * 1966-11-02 1969-04-03 Standard Elektrik Lorenz Ag Circuit arrangement for a regular, multi-stage coupling arrangement
GB1131367A (en) * 1965-11-18 1968-10-23 Automatic Telephone & Elect Improvements in or relating to automatic telephone systems
NL6701051A (en) * 1967-01-23 1968-07-24
DE1296214B (en) * 1967-02-27 1969-05-29 Siemens Ag Circuit arrangement for telecommunications systems, in particular telephone exchanges with multi-stage coupling devices
US3679897A (en) * 1969-08-28 1972-07-25 Trw Inc Laser bombardment of microparticle beam for producing atomic particles in the form of a beam or an expanding cloud
US3646276A (en) * 1970-12-22 1972-02-29 Int Standard Electric Corp Automatic switching system, selecting system and check circuits

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1086283B (en) * 1959-02-19 1960-08-04 Siemens Ag Circuit arrangement for telecommunication, especially telephone systems with relay couplers
DE1086284B (en) * 1959-02-19 1960-08-04 Siemens Ag Circuit arrangement for telecommunication, especially telephone systems with relay couplers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1259396B (en) * 1965-11-17 1968-01-25 Standard Elektrik Lorenz Ag Circuit arrangement for controlling the through-connection of a connection path in a multi-stage switching arrangement

Also Published As

Publication number Publication date
CH401166A (en) 1965-10-31
ES287597A1 (en) 1963-06-16
AT238776B (en) 1965-02-25
DK107237C (en) 1967-05-08
DE1218539B (en) 1966-06-08
US3294920A (en) 1966-12-27
NL278092A (en)
BE631825A (en)

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