CA998153A - Common control telephone exchange system using mechanical latching type crossbar switches - Google Patents

Common control telephone exchange system using mechanical latching type crossbar switches

Info

Publication number
CA998153A
CA998153A CA188,963A CA188963A CA998153A CA 998153 A CA998153 A CA 998153A CA 188963 A CA188963 A CA 188963A CA 998153 A CA998153 A CA 998153A
Authority
CA
Canada
Prior art keywords
exchange system
common control
telephone exchange
crossbar switches
mechanical latching
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
CA188,963A
Other languages
English (en)
Other versions
CA188963S (en
Inventor
Tadao Tsuruda
Hiromi Moriyama
Motosuke Kuwabara
Katsuyuki Jin
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of CA998153A publication Critical patent/CA998153A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0004—Selecting arrangements using crossbar selectors in the switching stages

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
CA188,963A 1972-12-25 1973-12-27 Common control telephone exchange system using mechanical latching type crossbar switches Expired CA998153A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47129260A JPS4987208A (OSRAM) 1972-12-25 1972-12-25

Publications (1)

Publication Number Publication Date
CA998153A true CA998153A (en) 1976-10-05

Family

ID=15005156

Family Applications (1)

Application Number Title Priority Date Filing Date
CA188,963A Expired CA998153A (en) 1972-12-25 1973-12-27 Common control telephone exchange system using mechanical latching type crossbar switches

Country Status (5)

Country Link
US (1) US3941952A (OSRAM)
JP (1) JPS4987208A (OSRAM)
AU (1) AU473570B2 (OSRAM)
BR (1) BR7310089D0 (OSRAM)
CA (1) CA998153A (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53114602A (en) * 1977-03-17 1978-10-06 Fujitsu Ltd Off-normal control system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL236109A (OSRAM) * 1958-02-14

Also Published As

Publication number Publication date
JPS4987208A (OSRAM) 1974-08-21
BR7310089D0 (pt) 1974-08-15
AU473570B2 (en) 1976-06-24
US3941952A (en) 1976-03-02
AU6393773A (en) 1975-07-03

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