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IT1015323B - Circuito di controllo e mantenimen to per matrici a rele in centralini telefonici - Google Patents

Circuito di controllo e mantenimen to per matrici a rele in centralini telefonici

Info

Publication number
IT1015323B
IT1015323B IT24319/74A IT2431974A IT1015323B IT 1015323 B IT1015323 B IT 1015323B IT 24319/74 A IT24319/74 A IT 24319/74A IT 2431974 A IT2431974 A IT 2431974A IT 1015323 B IT1015323 B IT 1015323B
Authority
IT
Italy
Prior art keywords
control
maintenance circuit
telephone switchboards
relay matrices
matrices
Prior art date
Application number
IT24319/74A
Other languages
English (en)
Inventor
R Hjortendal
J Olsson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Application granted granted Critical
Publication of IT1015323B publication Critical patent/IT1015323B/it

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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H63/00—Details of electrically-operated selector switches
    • H01H63/36—Circuit arrangements for ensuring correct or desired operation and not adapted to a particular application of the selector switch

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Relay Circuits (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
IT24319/74A 1973-06-27 1974-06-24 Circuito di controllo e mantenimen to per matrici a rele in centralini telefonici IT1015323B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7309028A SE7309028L (it) 1973-06-27 1973-06-27

Publications (1)

Publication Number Publication Date
IT1015323B true IT1015323B (it) 1977-05-10

Family

ID=20317896

Family Applications (1)

Application Number Title Priority Date Filing Date
IT24319/74A IT1015323B (it) 1973-06-27 1974-06-24 Circuito di controllo e mantenimen to per matrici a rele in centralini telefonici

Country Status (10)

Country Link
US (1) US3936612A (it)
JP (1) JPS5039011A (it)
BR (1) BR7405173A (it)
DE (1) DE2429831B2 (it)
ES (1) ES427681A1 (it)
FR (1) FR2235562A1 (it)
GB (1) GB1474785A (it)
IT (1) IT1015323B (it)
NL (1) NL7408068A (it)
SE (1) SE7309028L (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976845A (en) * 1975-12-08 1976-08-24 Gte Sylvania Incorporated Switching network having improved turn-on capability
US4085294A (en) * 1976-08-02 1978-04-18 Gte Automatic Electric (Canada) Ltd. Control point driver circuit
DE2747607C2 (de) 1977-10-24 1991-05-08 Sds-Elektro Gmbh, 8024 Deisenhofen Schaltungsanordnung zur Ansteuerung eines bistabilen Relais
DE2760222C2 (de) * 1977-10-24 1991-11-28 Sds-Elektro Gmbh, 8024 Deisenhofen Schaltungsanordnung zur Ansteuerung eines bistabilen Relais
JPS582513B2 (ja) * 1978-03-03 1983-01-17 株式会社日立製作所 ネットワ−ク駆動方式
EP3371612B1 (en) * 2015-11-06 2020-12-23 Divmac - Projectos, Automatismos e Periféricos Industriais S.A. Automated test equipment and its operation method
CN108152593B (zh) * 2017-12-28 2023-08-18 中国科学院西安光学精密机械研究所 便携式全自动电接口直流电阻测试系统及测试方法

Also Published As

Publication number Publication date
GB1474785A (en) 1977-05-25
AU6987374A (en) 1975-12-11
FR2235562A1 (it) 1975-01-24
NL7408068A (it) 1974-12-31
DE2429831A1 (de) 1975-01-16
SE7309028L (it) 1974-12-30
JPS5039011A (it) 1975-04-10
DE2429831B2 (de) 1975-07-17
ES427681A1 (es) 1976-09-01
BR7405173A (pt) 1977-02-01
US3936612A (en) 1976-02-03

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