KR900005757A - External music source power control device of exchange system - Google Patents

External music source power control device of exchange system Download PDF

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Publication number
KR900005757A
KR900005757A KR1019880012642A KR880012642A KR900005757A KR 900005757 A KR900005757 A KR 900005757A KR 1019880012642 A KR1019880012642 A KR 1019880012642A KR 880012642 A KR880012642 A KR 880012642A KR 900005757 A KR900005757 A KR 900005757A
Authority
KR
South Korea
Prior art keywords
music
signal
external
exchange system
control device
Prior art date
Application number
KR1019880012642A
Other languages
Korean (ko)
Inventor
김영대
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 KR1019880012642A priority Critical patent/KR900005757A/en
Publication of KR900005757A publication Critical patent/KR900005757A/en

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Abstract

내용없음No content

Description

교환시스템의 외부음악원 전원 제어장치External music source power control device of exchange system

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

제1도은 외부기기를 시스템과 인터페이싱시키는 서브보드의 블럭 구성도.1 is a block diagram of a subboard for interfacing an external device with a system.

제2도는 본 발명의 구체 회로도.2 is a detailed circuit diagram of the present invention.

Claims (1)

오부음악장치의 외부기기를 접속할 수 있는 서브보드를 구비한 교환시스템의 외부 음악원 제어장치에 있어서, 교환시스템에발생하는 음악요구신호에 의해 제1상태 신호를, 음악취소 신호에 의해 제2상태 신호를 래치 출력하는 래치와, 상기 제1상태 신호에 의해 "온"구동신호를, 제2상태 신호에 의해 "오프"구동신호를 발생하는 구동부와, 서지를 방지하며, 상기 "온"구동신호에 의해 시스템 전원을 상기 외부 음악장치(20)로 공급하고 상기 "오프"구동신호에 의해 시스템전원을 차단하도록 릴레이를 동작하는 SSR과, 상기 외부음악장치(20)의 출력신호를 일정레벨로 감쇄하여 양질의 음악을 음악 입력단으로 출력하는 이득 조정부로 구성됨을 특징으로 하는 외부 음악원의 전원 제어장치.An external music source control apparatus of an exchange system having a sub-board capable of connecting external devices of a false music device, comprising: a first state signal in response to a music request signal generated in the exchange system and a second state signal in response to a music cancel signal; A latch for latching the output signal; a driver for generating an " on " drive signal by the first state signal and an " off " drive signal by the second state signal; By supplying system power to the external music device 20 and the SSR operating the relay to cut off the system power by the "off" drive signal, and attenuates the output signal of the external music device 20 to a predetermined level A power control device of an external music source, characterized in that the gain control unit for outputting high-quality music to the music input stage. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880012642A 1988-09-29 1988-09-29 External music source power control device of exchange system KR900005757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019880012642A KR900005757A (en) 1988-09-29 1988-09-29 External music source power control device of exchange system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880012642A KR900005757A (en) 1988-09-29 1988-09-29 External music source power control device of exchange system

Publications (1)

Publication Number Publication Date
KR900005757A true KR900005757A (en) 1990-04-14

Family

ID=68158309

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880012642A KR900005757A (en) 1988-09-29 1988-09-29 External music source power control device of exchange system

Country Status (1)

Country Link
KR (1) KR900005757A (en)

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