JPS5690655A - Wire transmission system - Google Patents

Wire transmission system

Info

Publication number
JPS5690655A
JPS5690655A JP16755379A JP16755379A JPS5690655A JP S5690655 A JPS5690655 A JP S5690655A JP 16755379 A JP16755379 A JP 16755379A JP 16755379 A JP16755379 A JP 16755379A JP S5690655 A JPS5690655 A JP S5690655A
Authority
JP
Japan
Prior art keywords
station
short
fault
terminal station
common
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
JP16755379A
Other languages
Japanese (ja)
Other versions
JPS6336588B2 (en
Inventor
Hitoshi Yamamoto
Kikuo Kawasaki
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP16755379A priority Critical patent/JPS5690655A/en
Publication of JPS5690655A publication Critical patent/JPS5690655A/en
Publication of JPS6336588B2 publication Critical patent/JPS6336588B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/026—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse time characteristics modulation, e.g. width, position, interval

Abstract

PURPOSE:To maintain the operation of the whole transmission system by disconnecting a terminal station, where a fault is occurring, from a common transmission line when transmitting information from a terminal station to a center station by utilizing a signal transmitted from the center station. CONSTITUTION:At each terminal station, a digital signal (waveform B) transmitted from a center station via a common two-wire transmission line is received and when a response to it should be made, a signal of ''1'' and ''0'' in waveform C, for example, is supplied to the base of switching transistor T2 to send data back to the center station. Each terminal station is provided with short-circuit detecting circuit DT, which detects the common two-wire transmission line being in a short-circuit state for longer than a prescribed time as a fault (e.g. short-circuit fault of transistor T2) to open relay contact X0.
JP16755379A 1979-12-25 1979-12-25 Wire transmission system Granted JPS5690655A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16755379A JPS5690655A (en) 1979-12-25 1979-12-25 Wire transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16755379A JPS5690655A (en) 1979-12-25 1979-12-25 Wire transmission system

Publications (2)

Publication Number Publication Date
JPS5690655A true JPS5690655A (en) 1981-07-22
JPS6336588B2 JPS6336588B2 (en) 1988-07-20

Family

ID=15851846

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16755379A Granted JPS5690655A (en) 1979-12-25 1979-12-25 Wire transmission system

Country Status (1)

Country Link
JP (1) JPS5690655A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5897942A (en) * 1981-12-07 1983-06-10 Toshiba Corp Oscillating device
JPH01236749A (en) * 1989-01-23 1989-09-21 Hitachi Ltd Method and equipment for transmitting/receiving signal
JPH02254834A (en) * 1989-03-28 1990-10-15 Matsushita Electric Works Ltd Short-circuit detection unit in multiplex signal transmission, and multiplex signal transmission system using the unit
JP2020025153A (en) * 2018-08-06 2020-02-13 富士通株式会社 Parameter setting transmission/reception system and parameter setting method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045505A (en) * 1973-08-27 1975-04-23
JPS5478003A (en) * 1977-12-05 1979-06-21 Hitachi Ltd Code information transmission system
JPS6119190A (en) * 1984-07-05 1986-01-28 キヤノン株式会社 Mounting structure of electronic device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045505A (en) * 1973-08-27 1975-04-23
JPS5478003A (en) * 1977-12-05 1979-06-21 Hitachi Ltd Code information transmission system
JPS6119190A (en) * 1984-07-05 1986-01-28 キヤノン株式会社 Mounting structure of electronic device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5897942A (en) * 1981-12-07 1983-06-10 Toshiba Corp Oscillating device
JPH029738B2 (en) * 1981-12-07 1990-03-05 Tokyo Shibaura Electric Co
JPH01236749A (en) * 1989-01-23 1989-09-21 Hitachi Ltd Method and equipment for transmitting/receiving signal
JPH02254834A (en) * 1989-03-28 1990-10-15 Matsushita Electric Works Ltd Short-circuit detection unit in multiplex signal transmission, and multiplex signal transmission system using the unit
JP2020025153A (en) * 2018-08-06 2020-02-13 富士通株式会社 Parameter setting transmission/reception system and parameter setting method

Also Published As

Publication number Publication date
JPS6336588B2 (en) 1988-07-20

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