JPS55137791A - Remote control unit - Google Patents

Remote control unit

Info

Publication number
JPS55137791A
JPS55137791A JP4639579A JP4639579A JPS55137791A JP S55137791 A JPS55137791 A JP S55137791A JP 4639579 A JP4639579 A JP 4639579A JP 4639579 A JP4639579 A JP 4639579A JP S55137791 A JPS55137791 A JP S55137791A
Authority
JP
Japan
Prior art keywords
signal line
short
circuit
master machine
repeaters
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
JP4639579A
Other languages
Japanese (ja)
Inventor
Toshiro Fukui
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP4639579A priority Critical patent/JPS55137791A/en
Publication of JPS55137791A publication Critical patent/JPS55137791A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To restrain the influence dependent upon short-circuit of the signal line between master and slave machines to a minimum, by inserting prescribed repeaters in proper positions of the signal line. CONSTITUTION:Repeaters B... are inserted in proper positions of signal line 2 from master machine 1. When no voltage appeares on signal line 2 over a prescribed time, this repeater B decides that short-circuit has occurred in signal line 2 to disconnect and separate the signal line of the master machine side and the signal line of the terminal side from each other; and when a signal is input from the master machine, repeater B operates so that disconnection and separation may be restored automatically. When the signal line is disconnected, the short-circuit occurrence position is detected by master machine 1 having a function to detect short-circuit of the signal line, and all repeaters except sections which are affected by short-circuit are released. Consequently, normal remote control can be performed for terminal upon short-circuit can be restrained to a minimum.
JP4639579A 1979-04-15 1979-04-15 Remote control unit Pending JPS55137791A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4639579A JPS55137791A (en) 1979-04-15 1979-04-15 Remote control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4639579A JPS55137791A (en) 1979-04-15 1979-04-15 Remote control unit

Publications (1)

Publication Number Publication Date
JPS55137791A true JPS55137791A (en) 1980-10-27

Family

ID=12745950

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4639579A Pending JPS55137791A (en) 1979-04-15 1979-04-15 Remote control unit

Country Status (1)

Country Link
JP (1) JPS55137791A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0977409A2 (en) * 1998-07-27 2000-02-02 Siemens Aktiengesellschaft Repeater with short circuit detection
DE202004004637U1 (en) * 2004-03-25 2004-12-09 Schiff, Andreas, Dr. Actuator-sensor (AS) interface for network with impedance as network closure end, voltage supply and network through, two-wire cable coupled to voltage supply, to which are coupled several communication appliances

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0977409A2 (en) * 1998-07-27 2000-02-02 Siemens Aktiengesellschaft Repeater with short circuit detection
EP0977409A3 (en) * 1998-07-27 2001-09-19 Siemens Aktiengesellschaft Repeater with short circuit detection
DE202004004637U1 (en) * 2004-03-25 2004-12-09 Schiff, Andreas, Dr. Actuator-sensor (AS) interface for network with impedance as network closure end, voltage supply and network through, two-wire cable coupled to voltage supply, to which are coupled several communication appliances

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