JPS5799041A - Optical insulation floating 2-wire 4-wire converter - Google Patents

Optical insulation floating 2-wire 4-wire converter

Info

Publication number
JPS5799041A
JPS5799041A JP17509180A JP17509180A JPS5799041A JP S5799041 A JPS5799041 A JP S5799041A JP 17509180 A JP17509180 A JP 17509180A JP 17509180 A JP17509180 A JP 17509180A JP S5799041 A JPS5799041 A JP S5799041A
Authority
JP
Japan
Prior art keywords
wire
optical insulation
conversion circuit
circuits
converter
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
JP17509180A
Other languages
Japanese (ja)
Inventor
Takehiko Tsutsumi
Shiro Kikuchi
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.)
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Oki Electric Industry 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 Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP17509180A priority Critical patent/JPS5799041A/en
Publication of JPS5799041A publication Critical patent/JPS5799041A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/587—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa using opto-couplers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electronic Switches (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To constitute a 2-wire/4-wire converter only with electronic circuits and to insulate the 2-wire and 4-wire electrically, by using a 2-wire/4-wire conversion circuit consisting of electronic circuits and an optical insulation amplifier. CONSTITUTION:A signal from two-wire lines 17, 17' is applied to a 2-wire/4- wire conversion circuit 37 consisting of operational amplifiers 30, 32 and the 4-wire side output signal is applied to an optical insulation amplifying circuit 37. An input signal from a 4-wire lines 19, 19' is applied to an optical insulation amplifying circuit 38, and the output is applied to a 4-wire side input terminal of the 2-wire/4-wire conversion circuit. The monitor current flowing to the two- wire line is picked up at a monitor current absorbing circuit 21 and applied as the power supply for the operational amplifier circuits 30, 32 of the 2-wire/4- wire conversion circuit 29 and operational amplifier circuits 39, 42 of the circuits 37, 38.
JP17509180A 1980-12-11 1980-12-11 Optical insulation floating 2-wire 4-wire converter Pending JPS5799041A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17509180A JPS5799041A (en) 1980-12-11 1980-12-11 Optical insulation floating 2-wire 4-wire converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17509180A JPS5799041A (en) 1980-12-11 1980-12-11 Optical insulation floating 2-wire 4-wire converter

Publications (1)

Publication Number Publication Date
JPS5799041A true JPS5799041A (en) 1982-06-19

Family

ID=15990083

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17509180A Pending JPS5799041A (en) 1980-12-11 1980-12-11 Optical insulation floating 2-wire 4-wire converter

Country Status (1)

Country Link
JP (1) JPS5799041A (en)

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