JPS5391616A - Trunk circuit control system - Google Patents

Trunk circuit control system

Info

Publication number
JPS5391616A
JPS5391616A JP592877A JP592877A JPS5391616A JP S5391616 A JPS5391616 A JP S5391616A JP 592877 A JP592877 A JP 592877A JP 592877 A JP592877 A JP 592877A JP S5391616 A JPS5391616 A JP S5391616A
Authority
JP
Japan
Prior art keywords
control system
circuit control
trunk circuit
trunk
increase
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
JP592877A
Other languages
Japanese (ja)
Inventor
Mitsunobu Otsuka
Morihiro Sato
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 JP592877A priority Critical patent/JPS5391616A/en
Publication of JPS5391616A publication Critical patent/JPS5391616A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/0096—Trunk circuits

Landscapes

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

Abstract

PURPOSE:To increase the patterns in the trunk circuit and to increase the functions of trunk, by constituting that only the pattern relays can be used more without increasing the number of control pointers of the trunk driving unit.
JP592877A 1977-01-24 1977-01-24 Trunk circuit control system Pending JPS5391616A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP592877A JPS5391616A (en) 1977-01-24 1977-01-24 Trunk circuit control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP592877A JPS5391616A (en) 1977-01-24 1977-01-24 Trunk circuit control system

Publications (1)

Publication Number Publication Date
JPS5391616A true JPS5391616A (en) 1978-08-11

Family

ID=11624543

Family Applications (1)

Application Number Title Priority Date Filing Date
JP592877A Pending JPS5391616A (en) 1977-01-24 1977-01-24 Trunk circuit control system

Country Status (1)

Country Link
JP (1) JPS5391616A (en)

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