JPS57164693A - Line connecting circuit - Google Patents

Line connecting circuit

Info

Publication number
JPS57164693A
JPS57164693A JP4944081A JP4944081A JPS57164693A JP S57164693 A JPS57164693 A JP S57164693A JP 4944081 A JP4944081 A JP 4944081A JP 4944081 A JP4944081 A JP 4944081A JP S57164693 A JPS57164693 A JP S57164693A
Authority
JP
Japan
Prior art keywords
control
switches
remote monitor
line connecting
connecting circuit
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
JP4944081A
Other languages
Japanese (ja)
Other versions
JPS6326958B2 (en
Inventor
Masamitsu Miyazaki
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 Denshi KK
Original Assignee
Hitachi Denshi 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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP4944081A priority Critical patent/JPS57164693A/en
Publication of JPS57164693A publication Critical patent/JPS57164693A/en
Publication of JPS6326958B2 publication Critical patent/JPS6326958B2/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)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To achieve simultaneous control on real time, by connecting all lines at the same time in addition to the remote monitor control operation, in a line connecting circuit of a remote monitor control system using wire lines. CONSTITUTION:In addition to the operation selecting only one of switches 31-3n corresponding to wire lines 11-1n through the control of a switch control section 4, the connection of the remote monitor control is changed to the switches 31-3n to be opened and switches 41-4n, 7 to be closed. Thus, control codes from a modulation and demodulation section 5 are transmitted to all slave stations connected to the wire lines 11-1n.
JP4944081A 1981-04-03 1981-04-03 Line connecting circuit Granted JPS57164693A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4944081A JPS57164693A (en) 1981-04-03 1981-04-03 Line connecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4944081A JPS57164693A (en) 1981-04-03 1981-04-03 Line connecting circuit

Publications (2)

Publication Number Publication Date
JPS57164693A true JPS57164693A (en) 1982-10-09
JPS6326958B2 JPS6326958B2 (en) 1988-06-01

Family

ID=12831170

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4944081A Granted JPS57164693A (en) 1981-04-03 1981-04-03 Line connecting circuit

Country Status (1)

Country Link
JP (1) JPS57164693A (en)

Also Published As

Publication number Publication date
JPS6326958B2 (en) 1988-06-01

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