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JPS52120607A - Trunk communicating path control system - Google Patents

Trunk communicating path control system

Info

Publication number
JPS52120607A
JPS52120607A JP3605376A JP3605376A JPS52120607A JP S52120607 A JPS52120607 A JP S52120607A JP 3605376 A JP3605376 A JP 3605376A JP 3605376 A JP3605376 A JP 3605376A JP S52120607 A JPS52120607 A JP S52120607A
Authority
JP
Japan
Prior art keywords
control system
path control
trunk
communicating path
trunk communicating
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.)
Granted
Application number
JP3605376A
Other languages
Japanese (ja)
Other versions
JPS5619782B2 (en
Inventor
Hirotoshi Shirasu
Masahiko Kusama
Toshifumi Ishida
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
Priority to JP3605376A priority Critical patent/JPS52120607A/en
Publication of JPS52120607A publication Critical patent/JPS52120607A/en
Publication of JPS5619782B2 publication Critical patent/JPS5619782B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

PURPOSE:To decrease the number of leads wired between the trunk and the B board operator circuit and to lower the unit cost, by adding a relay switchable three communicating paths to the trunk and the B board operator circuit respectively.
JP3605376A 1976-04-02 1976-04-02 Trunk communicating path control system Granted JPS52120607A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3605376A JPS52120607A (en) 1976-04-02 1976-04-02 Trunk communicating path control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3605376A JPS52120607A (en) 1976-04-02 1976-04-02 Trunk communicating path control system

Publications (2)

Publication Number Publication Date
JPS52120607A true JPS52120607A (en) 1977-10-11
JPS5619782B2 JPS5619782B2 (en) 1981-05-09

Family

ID=12458963

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3605376A Granted JPS52120607A (en) 1976-04-02 1976-04-02 Trunk communicating path control system

Country Status (1)

Country Link
JP (1) JPS52120607A (en)

Also Published As

Publication number Publication date
JPS5619782B2 (en) 1981-05-09

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