JPS5210607A - Extension mutual connection system - Google Patents

Extension mutual connection system

Info

Publication number
JPS5210607A
JPS5210607A JP8712075A JP8712075A JPS5210607A JP S5210607 A JPS5210607 A JP S5210607A JP 8712075 A JP8712075 A JP 8712075A JP 8712075 A JP8712075 A JP 8712075A JP S5210607 A JPS5210607 A JP S5210607A
Authority
JP
Japan
Prior art keywords
connection system
mutual connection
extension mutual
extension
terms
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.)
Pending
Application number
JP8712075A
Other languages
Japanese (ja)
Inventor
Hiroshi Kuromori
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.)
Taiko Electric Works Ltd
Original Assignee
Taiko Electric Works 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 Taiko Electric Works Ltd filed Critical Taiko Electric Works Ltd
Priority to JP8712075A priority Critical patent/JPS5210607A/en
Publication of JPS5210607A publication Critical patent/JPS5210607A/en
Pending 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)
  • Exchange Systems With Centralized Control (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:To make a single channel of the extension mutual communication trunk in order to half the number of output terminals, thereby increasing their number in terms of practical effect and ensuring economical switch board operation.
JP8712075A 1975-07-16 1975-07-16 Extension mutual connection system Pending JPS5210607A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8712075A JPS5210607A (en) 1975-07-16 1975-07-16 Extension mutual connection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8712075A JPS5210607A (en) 1975-07-16 1975-07-16 Extension mutual connection system

Publications (1)

Publication Number Publication Date
JPS5210607A true JPS5210607A (en) 1977-01-27

Family

ID=13906085

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8712075A Pending JPS5210607A (en) 1975-07-16 1975-07-16 Extension mutual connection system

Country Status (1)

Country Link
JP (1) JPS5210607A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60143081A (en) * 1983-12-29 1985-07-29 Nec Home Electronics Ltd Electronic still camera system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60143081A (en) * 1983-12-29 1985-07-29 Nec Home Electronics Ltd Electronic still camera system

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