JPS57174942A - Line repeater - Google Patents

Line repeater

Info

Publication number
JPS57174942A
JPS57174942A JP5914881A JP5914881A JPS57174942A JP S57174942 A JPS57174942 A JP S57174942A JP 5914881 A JP5914881 A JP 5914881A JP 5914881 A JP5914881 A JP 5914881A JP S57174942 A JPS57174942 A JP S57174942A
Authority
JP
Japan
Prior art keywords
terminal
diodes
flows
output
separated
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
JP5914881A
Other languages
Japanese (ja)
Inventor
Shigeo Okada
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP5914881A priority Critical patent/JPS57174942A/en
Publication of JPS57174942A publication Critical patent/JPS57174942A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/44—Arrangements for feeding power to a repeater along the transmission line

Landscapes

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

Abstract

PURPOSE:To enable to provide a sort of repeater bidirectionally, by generating a prescribed voltage to a Zener diode in incoming and outgoing transmission directions. CONSTITUTION:In a power supply circuit 1, four diodes 2, 3, 5 and 6 are connected to a bridge type full wave rectifying circuit, and a Zener diode 4 is connected between two output terminals. A power supply current flowing from a communication signal input terminal 10 is separated at an input section 8 and superimposed on the communication current via an output section through the diodes 2, 4 and 6 and flows from a communicaton signal output terminal 11. In case of flowing from the terminal 11, the current is separated at the output section and flows from the terminal 10 via the input section 8 through the diodes 5, 4 and 3. Thus, in any case, the diode 4 generates a constant voltage and the power is supplied to an amplifier 7.
JP5914881A 1981-04-21 1981-04-21 Line repeater Pending JPS57174942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5914881A JPS57174942A (en) 1981-04-21 1981-04-21 Line repeater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5914881A JPS57174942A (en) 1981-04-21 1981-04-21 Line repeater

Publications (1)

Publication Number Publication Date
JPS57174942A true JPS57174942A (en) 1982-10-27

Family

ID=13104958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5914881A Pending JPS57174942A (en) 1981-04-21 1981-04-21 Line repeater

Country Status (1)

Country Link
JP (1) JPS57174942A (en)

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