JPS6138911B2 - - Google Patents

Info

Publication number
JPS6138911B2
JPS6138911B2 JP15595979A JP15595979A JPS6138911B2 JP S6138911 B2 JPS6138911 B2 JP S6138911B2 JP 15595979 A JP15595979 A JP 15595979A JP 15595979 A JP15595979 A JP 15595979A JP S6138911 B2 JPS6138911 B2 JP S6138911B2
Authority
JP
Japan
Prior art keywords
telephone
impedance
circuit
main device
switching semiconductor
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
JP15595979A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5679558A (en
Inventor
Hiroyuki Myashita
Kazutada Katsukura
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.)
Iwasaki Tsushinki KK
Original Assignee
Iwasaki Tsushinki KK
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 Iwasaki Tsushinki KK filed Critical Iwasaki Tsushinki KK
Priority to JP15595979A priority Critical patent/JPS5679558A/ja
Publication of JPS5679558A publication Critical patent/JPS5679558A/ja
Publication of JPS6138911B2 publication Critical patent/JPS6138911B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/52—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements
    • H04Q3/521—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements using semiconductors in the switching stages

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP15595979A 1979-11-30 1979-11-30 Monitor system for channel Granted JPS5679558A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15595979A JPS5679558A (en) 1979-11-30 1979-11-30 Monitor system for channel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15595979A JPS5679558A (en) 1979-11-30 1979-11-30 Monitor system for channel

Publications (2)

Publication Number Publication Date
JPS5679558A JPS5679558A (en) 1981-06-30
JPS6138911B2 true JPS6138911B2 (enrdf_load_stackoverflow) 1986-09-01

Family

ID=15617267

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15595979A Granted JPS5679558A (en) 1979-11-30 1979-11-30 Monitor system for channel

Country Status (1)

Country Link
JP (1) JPS5679558A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS5679558A (en) 1981-06-30

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