JPS57202160A - Data transmission system - Google Patents

Data transmission system

Info

Publication number
JPS57202160A
JPS57202160A JP56086689A JP8668981A JPS57202160A JP S57202160 A JPS57202160 A JP S57202160A JP 56086689 A JP56086689 A JP 56086689A JP 8668981 A JP8668981 A JP 8668981A JP S57202160 A JPS57202160 A JP S57202160A
Authority
JP
Japan
Prior art keywords
power supply
data transmission
transmission
lines
transmission lines
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
JP56086689A
Other languages
Japanese (ja)
Inventor
Kaoru Seo
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56086689A priority Critical patent/JPS57202160A/en
Publication of JPS57202160A publication Critical patent/JPS57202160A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/10—Current supply arrangements

Abstract

PURPOSE:To eliminate the need for a power supply controlling line, by turning on a main power supply of a master transmitter from a slave transmitter side via a data transmission line. CONSTITUTION:A master transmitter and a slave transmitter 5 transmit data with transmission lines 9 and 10, a switch 8 is opened at nonoperation of a system and the transmission lines 9 and 10 are connected to a current source 13 and a current detector 14 via a relay 15. When the switch 8 is closed, a closed loop is constituted of the transmission lines 9 and 10, a pulse transformer 7, the current source 13 and the current detector 14. A conduction detecting signal 17 is stored 16, an output 18 turns on a main power supply 3 and given to the relay 15 to connect the lines 9 and 10 to a transmission section 2, allowing to perform data transmission.
JP56086689A 1981-06-05 1981-06-05 Data transmission system Pending JPS57202160A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56086689A JPS57202160A (en) 1981-06-05 1981-06-05 Data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56086689A JPS57202160A (en) 1981-06-05 1981-06-05 Data transmission system

Publications (1)

Publication Number Publication Date
JPS57202160A true JPS57202160A (en) 1982-12-10

Family

ID=13893943

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56086689A Pending JPS57202160A (en) 1981-06-05 1981-06-05 Data transmission system

Country Status (1)

Country Link
JP (1) JPS57202160A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6397280B1 (en) * 1996-11-19 2002-05-28 Robert Bosch Gmbh Slave station, master station, bus system and method for operating a bus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6397280B1 (en) * 1996-11-19 2002-05-28 Robert Bosch Gmbh Slave station, master station, bus system and method for operating a bus

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