KR890017930A - DC bypass circuit in analog interface circuit - Google Patents

DC bypass circuit in analog interface circuit Download PDF

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Publication number
KR890017930A
KR890017930A KR1019880006178A KR880006178A KR890017930A KR 890017930 A KR890017930 A KR 890017930A KR 1019880006178 A KR1019880006178 A KR 1019880006178A KR 880006178 A KR880006178 A KR 880006178A KR 890017930 A KR890017930 A KR 890017930A
Authority
KR
South Korea
Prior art keywords
circuit
analog interface
voice signal
tip
line
Prior art date
Application number
KR1019880006178A
Other languages
Korean (ko)
Other versions
KR910003493B1 (en
Inventor
이동현
Original Assignee
강진구
삼성반도체통신 주식회사
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 강진구, 삼성반도체통신 주식회사 filed Critical 강진구
Priority to KR1019880006178A priority Critical patent/KR910003493B1/en
Publication of KR890017930A publication Critical patent/KR890017930A/en
Application granted granted Critical
Publication of KR910003493B1 publication Critical patent/KR910003493B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers

Abstract

내용 없음No content

Description

아나로그 인터페이스 회로에 있어서 직류 바이패스회로DC bypass circuit in analog interface circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 1 도는 종래의 회로도, 제 2 도는 본 발명에 따른 회로도.1 is a conventional circuit diagram, and FIG. 2 is a circuit diagram according to the present invention.

Claims (1)

트렁크나 모뎀 시스템의 팁(Tip) 링(Ring)과 연결되는 아나로그 인터페이스 회로에 있어서, 상기 팁선, 링선에서 입력되는 -48V직류가 팁(Tip)선, 링(Ring)선의 극성이 바뀌더라도 일정한 방향으로 DC와 결합된 음성신호를 흐를수 있도록 하는 제 1 수단과, 상기 음성신호는 통과시키고 직류(DC)성분은 차단시키는 제 2 수단과, 상기 DC성분을 바이패스시키고 일정한 전류를 흐를수 있도록 하는 제 3 수단과, 상기 음성신호 전송시 임피던스 매칭을 위한 제 4 수단으로 구성됨을 특징으로하는 직류 바이패스회로.In an analog interface circuit connected to a tip ring of a trunk or modem system, the -48V DC input from the tip line and the ring line is constant even if the polarity of the tip line and the ring line changes. First means for flowing a voice signal coupled to DC in a direction; second means for passing the voice signal and blocking direct current (DC) components; and bypassing the DC component and allowing a constant current to flow. And a fourth means for impedance matching when the voice signal is transmitted. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880006178A 1988-05-26 1988-05-26 Dc by-passing circuit in analog interface KR910003493B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019880006178A KR910003493B1 (en) 1988-05-26 1988-05-26 Dc by-passing circuit in analog interface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880006178A KR910003493B1 (en) 1988-05-26 1988-05-26 Dc by-passing circuit in analog interface

Publications (2)

Publication Number Publication Date
KR890017930A true KR890017930A (en) 1989-12-18
KR910003493B1 KR910003493B1 (en) 1991-06-01

Family

ID=19274678

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880006178A KR910003493B1 (en) 1988-05-26 1988-05-26 Dc by-passing circuit in analog interface

Country Status (1)

Country Link
KR (1) KR910003493B1 (en)

Also Published As

Publication number Publication date
KR910003493B1 (en) 1991-06-01

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