KR950030580A - General telephone connection circuit of home automation system - Google Patents
General telephone connection circuit of home automation system Download PDFInfo
- Publication number
- KR950030580A KR950030580A KR1019940009014A KR19940009014A KR950030580A KR 950030580 A KR950030580 A KR 950030580A KR 1019940009014 A KR1019940009014 A KR 1019940009014A KR 19940009014 A KR19940009014 A KR 19940009014A KR 950030580 A KR950030580 A KR 950030580A
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- KR
- South Korea
- Prior art keywords
- telephone
- signal
- general telephone
- cpu
- central processing
- Prior art date
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- Devices For Supply Of Signal Current (AREA)
Abstract
가정자동화 시스템에 일반전화기의 연결을 릴레이 구동부에 의해 전원공급 또는 중앙처리장치(CPU)에서 제공되는 일반전화기 인에이블 신호단(NP2E)의 신호에 따라 릴레이 구동신호를 발생하고, 스위칭부(253)에서 상기 릴레이 구동부(252)의 출력에 따라 국선(T, R) 또는 일반전화라인(L1, L2), 링신호단(RING)을 선택한다.Connects a general telephone to the home automation system and generates a relay driving signal according to the signal of the general telephone enable signal terminal NP2E supplied from the power supply or CPU by the relay driving unit, and the switching unit 253. According to the output of the relay driver 252, the trunk line (T, R) or the general telephone line (L1, L2), and selects the ring signal terminal (RING).
상기 스위칭부(253)에 의해 통과되는 상기 일반전화기의 후크 온/오프 상태를 감지하며, 전송부에서 일반전화기에 음성 송수선이 용이도록 인터페이싱한다.The switching unit 253 detects a hook on / off state of the general telephone, and the interface transmits the voice telephone line to the general telephone.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 본 발명에 따른 회로도, 제2도는 본 발명에 따른 일반전화기 구성 회로도.1 is a circuit diagram according to the present invention, Figure 2 is a circuit diagram of a general telephone configuration according to the present invention.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940009014A KR950030580A (en) | 1994-04-27 | 1994-04-27 | General telephone connection circuit of home automation system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940009014A KR950030580A (en) | 1994-04-27 | 1994-04-27 | General telephone connection circuit of home automation system |
Publications (1)
Publication Number | Publication Date |
---|---|
KR950030580A true KR950030580A (en) | 1995-11-24 |
Family
ID=66681933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940009014A KR950030580A (en) | 1994-04-27 | 1994-04-27 | General telephone connection circuit of home automation system |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR950030580A (en) |
-
1994
- 1994-04-27 KR KR1019940009014A patent/KR950030580A/en not_active IP Right Cessation
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Legal Events
Date | Code | Title | Description |
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A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
SUBM | Submission of document of abandonment before or after decision of registration |