JPS5665550A - Calling out system for terminal device - Google Patents

Calling out system for terminal device

Info

Publication number
JPS5665550A
JPS5665550A JP14131179A JP14131179A JPS5665550A JP S5665550 A JPS5665550 A JP S5665550A JP 14131179 A JP14131179 A JP 14131179A JP 14131179 A JP14131179 A JP 14131179A JP S5665550 A JPS5665550 A JP S5665550A
Authority
JP
Japan
Prior art keywords
terminal device
central device
central
data
terminal
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
JP14131179A
Other languages
Japanese (ja)
Other versions
JPS6149864B2 (en
Inventor
Kazuo Kanai
Kyoichi Nakakawara
Naomitsu Furukawa
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.)
Toshiba Corp
Nippon Telegraph and Telephone Corp
Original Assignee
Toshiba Corp
Nippon Telegraph and Telephone Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Nippon Telegraph and Telephone Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14131179A priority Critical patent/JPS5665550A/en
Publication of JPS5665550A publication Critical patent/JPS5665550A/en
Publication of JPS6149864B2 publication Critical patent/JPS6149864B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Small-Scale Networks (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To transmit sequential data to a central device from the line of one system, by the constitution that each terminal device can sequentially be called from a common callout signal transmitted from the central device. CONSTITUTION:A plurality of terminal devices 2(2Ar, 2Br,...) of the same constitution are connected in series via a switch circuit 4 in each device, and the 1st terminal device 2A is connected to the central device 1. The switch circuit 4 electrically cuts off a terminal device 2B connected to the next stage at the initial stage with the central device 1, and when a callout signal is transmitted to the terminal device of itself from the terminal device of the prestage (central device in case of the 1st stage of terminal device), data is transmitted to the central device 1 through the transmission path. Further, when the data transmission is finished, the switch 4 is changed over to connect the terminal device of the next stage and the central device electrically, allowing to transmit the data of each terminal device sequentially to the central device.
JP14131179A 1979-11-02 1979-11-02 Calling out system for terminal device Granted JPS5665550A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14131179A JPS5665550A (en) 1979-11-02 1979-11-02 Calling out system for terminal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14131179A JPS5665550A (en) 1979-11-02 1979-11-02 Calling out system for terminal device

Publications (2)

Publication Number Publication Date
JPS5665550A true JPS5665550A (en) 1981-06-03
JPS6149864B2 JPS6149864B2 (en) 1986-10-31

Family

ID=15288937

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14131179A Granted JPS5665550A (en) 1979-11-02 1979-11-02 Calling out system for terminal device

Country Status (1)

Country Link
JP (1) JPS5665550A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010278759A (en) * 2009-05-28 2010-12-09 Mitsubishi Electric Corp Water distribution management communication system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5336117A (en) * 1976-09-16 1978-04-04 Fujitsu Ltd Circuit connection system
JPS5481702A (en) * 1977-12-13 1979-06-29 Mitsubishi Electric Corp Data delivery circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5336117A (en) * 1976-09-16 1978-04-04 Fujitsu Ltd Circuit connection system
JPS5481702A (en) * 1977-12-13 1979-06-29 Mitsubishi Electric Corp Data delivery circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010278759A (en) * 2009-05-28 2010-12-09 Mitsubishi Electric Corp Water distribution management communication system

Also Published As

Publication number Publication date
JPS6149864B2 (en) 1986-10-31

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