JPS57123793A - Two-wire signal transmission system - Google Patents

Two-wire signal transmission system

Info

Publication number
JPS57123793A
JPS57123793A JP824781A JP824781A JPS57123793A JP S57123793 A JPS57123793 A JP S57123793A JP 824781 A JP824781 A JP 824781A JP 824781 A JP824781 A JP 824781A JP S57123793 A JPS57123793 A JP S57123793A
Authority
JP
Japan
Prior art keywords
power source
binary
electricity
load
contact
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
JP824781A
Other languages
Japanese (ja)
Inventor
Ichiu Watabe
Yutaka Wakasa
Hisayuki Uchiike
Kiyoharu Inao
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Electric Corp
Yokogawa Hokushin Electric Corp
Yokogawa 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 Yokogawa Electric Corp, Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Electric Corp
Priority to JP824781A priority Critical patent/JPS57123793A/en
Publication of JPS57123793A publication Critical patent/JPS57123793A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/30—Electric signal transmission systems in which transmission is by selection of one or more conductors or channels from a plurality of conductors or channels

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To obtain a multipoint binary-signal input system of simple constitution, by connecting plural of system, which each suppies the electricity of an AC power source to a terminal equipment through a load detecting circuit and then modulates the load state of the terminal equipment side on binary basis, in parallel to the common AC power source. CONSTITUTION:The AC electricity of an AC power source 11 is supplied to a terminal side through a load detecting circuit 134d. This AC electricity is received through a transformer 311d and supplied to a contact circuit 315d. Through the opening and closing of the contact of the contact circuit 315d, the load of the transformer 311d varies on binary basis. Plural of system mentioned above are connected to the common AC power source 11. Since a binary signal is usually inputted by being insulated, a special detecting means and an energizing means are required at each point, so the complex structure of a device for a multipoint system is inevitable, but this point is improved.
JP824781A 1981-01-22 1981-01-22 Two-wire signal transmission system Pending JPS57123793A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP824781A JPS57123793A (en) 1981-01-22 1981-01-22 Two-wire signal transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP824781A JPS57123793A (en) 1981-01-22 1981-01-22 Two-wire signal transmission system

Publications (1)

Publication Number Publication Date
JPS57123793A true JPS57123793A (en) 1982-08-02

Family

ID=11687807

Family Applications (1)

Application Number Title Priority Date Filing Date
JP824781A Pending JPS57123793A (en) 1981-01-22 1981-01-22 Two-wire signal transmission system

Country Status (1)

Country Link
JP (1) JPS57123793A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63212190A (en) * 1987-02-27 1988-09-05 ヤマハ発動機株式会社 Rear-wheel support section structure of motorcycle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63212190A (en) * 1987-02-27 1988-09-05 ヤマハ発動機株式会社 Rear-wheel support section structure of motorcycle

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