KR960043720A - Dual communication circuit according to communication line cutting - Google Patents

Dual communication circuit according to communication line cutting Download PDF

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Publication number
KR960043720A
KR960043720A KR1019950012270A KR19950012270A KR960043720A KR 960043720 A KR960043720 A KR 960043720A KR 1019950012270 A KR1019950012270 A KR 1019950012270A KR 19950012270 A KR19950012270 A KR 19950012270A KR 960043720 A KR960043720 A KR 960043720A
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KR
South Korea
Prior art keywords
line
communication
general public
dedicated
circuit
Prior art date
Application number
KR1019950012270A
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Korean (ko)
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KR0148087B1 (en
Inventor
김정호
Original Assignee
박정옥
주식회사 에스원
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Application filed by 박정옥, 주식회사 에스원 filed Critical 박정옥
Priority to KR1019950012270A priority Critical patent/KR0148087B1/en
Publication of KR960043720A publication Critical patent/KR960043720A/en
Application granted granted Critical
Publication of KR0148087B1 publication Critical patent/KR0148087B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2245—Management of the local loop plant

Abstract

1. 청구범위에 기재된 발명이 속한 기술분야1. TECHNICAL FIELD OF THE INVENTION

본 발명은 신호전송기에 있어서 통신회로에 관한 것으로, 특히 전용회선을 사용하는 계약처에 있어 예비로 전화선을 연결하여 두어 전용회선 통신두절시에 공중회선을 이용하여 관제센터로 통보하는 통신선절단에 따른 듀얼통신회로에 관한 것이다.The present invention relates to a communication circuit in a signal transmitter, and in particular, in a contract using a dedicated line, a telephone line is preliminarily connected to the control center to notify the control center by using a public line at the time of a dedicated line communication loss. It relates to a dual communication circuit.

2. 발명이 해결하려고 하는 기술적 과제2. The technical problem to be solved by the invention

현재 전용회선으로 사용하는 선로의 실질적인 문제 및 선로환경으로 인해 실제로 몇분간의 통신장애시 통신선 단선으로 판단됨에 따라 침입자의 의도적인 통신선 절단에 대해 경비용 콘트롤러가 침입사실을 일반 공중회선을 이용하여 관제센터에 통보할 수 있는 시스템을 제공함에 있다.Due to the actual problems of the line currently used as a dedicated line and the line environment, it is judged that the communication line is disconnected in the case of a few minutes of communication failure. To provide a system that can notify the.

3. 발명의 해결방법의 요지3. Summary of Solution to Invention

전용회선용 또는 DTMF모뎀(307) 또는 일반공중회선부(303)을 구비한 통신회로에 있어서, 상기 전용회선용 또는 DTMF모뎀(301)과 일반 공중회선부(303)의 사용시의 DTMF 모뎀으로 통신방식에 전용선, 공중회선 겸용의 600 : 600Ω을 매칭하는 매칭 트랜스(305)와, 상기 정전류회로 및 기계식/전자식 교환기에 맞는 통신을 해주는 회로가 포함되는 일반공중회선부(303)와, 평상시 공중회선 L1, L2의 국선은 전화기(312)쪽으로 연결되어 있으며, 경비가 시작되어 콘트롤러가 관제센터로 정보를 송출하고자 할 때에는 일반공중회선부(303)쪽으로 연결하여 통신하도록 하는 회선절체부(301)와, 전용회선 모뎀으로부터의 신호를 관제로 송출하는 통로로써 쌍방향 통신을 하는 전용회선 통과부(309)와, 콘트롤러에 등록된 통신방식에 따라 통신선로를 선택하는 기능과 전용회선 사용시에 관제센타와의 통신 두절 상태가 되면 미리 약정된 프로토콜에 따라 통신 선로를 일반 공중회선부(303)의 일반공중회선 통로로 전환하여 관제센터로 송출하는 통신선로 선택 제어부(311)로 구성된다.A communication circuit having a dedicated line or a DTMF modem 307 or a general public line 303, which communicates with a DTMF modem when the dedicated line or the DTMF modem 301 and the general public line 303 are used. The general public line unit 303, which includes a matching transformer 305 for matching 600: 600 Ω for a dedicated line and a public line, a circuit for communicating with the constant current circuit and a mechanical / electronic exchange, and a public aerial line The trunk line of L1 and L2 is connected to the telephone 312 side, and when the guard starts and the controller wants to send information to the control center, the line switching unit 301 connects to the general public line 303 to communicate. , A dedicated line passing section 309 for two-way communication as a channel for transmitting signals from a dedicated line modem to a control, a function of selecting a communication line according to a communication method registered in the controller, and using a dedicated line When communication with the control center is lost, the communication line selection control unit 311 converts the communication line into a general public line passage of the general public line unit 303 and transmits it to the control center in accordance with a previously agreed protocol. .

4. 발명의 중요한 용도4. Important uses of the invention

듀얼 통신회로.Dual communication circuit.

Description

통신선 절단에 따른 듀얼 통신회로Dual communication circuit according to communication line cutting

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제3도는 본 발명에 따른 회로도, 제4도는 제3도의 구체회로도.3 is a circuit diagram according to the present invention, Figure 4 is a specific circuit diagram of FIG.

Claims (1)

콘트롤러 전용회선 또는 DTMF모뎀(307) 또는 일반공중회선 통과부(303)을 구비한 통신 회로에 있어서, 상기 전용회선 또는 DTMF모뎀(301)과 일반 공중회선부(303)의 사용시의 DTMF모뎀으로 통신방식에 전용선, 공중회선 겸용의 600 :600Ω을 매칭하는 매칭 트랜스부(305)와, 상기 정전류회로 및 기계식/전자식 교환기에 맞는 통신을 해주는 회로가 포함되는 일반공중회선부(303)와, 평상시 공중회선 L1, L2의 국선은 전화기(312)쪽으로 연결되어 있으며, 경비가 시작되어 콘트롤러가 관제센터로 정보를 송출하고자 할 때에는 상기 일반공중회선부(303)쪽으로 연결하여 통신하도록 하는 회선절체부(301)와, 전용회선 모뎀으로부터의 신호를 관제로 송출하는 통로로써 쌍방향 통신을 하는 전용회선 통과부(309)와, 상기 콘트롤러에 등록된 통신방식에 따라 통신선로를 선택하는 기능과 전용회선 사용시에 관제센타와의 통신두절 상태가 되면 미리 약정된 프로토콜에 따라 통신선로를 일반 공중회선부(303)의 일반공중회선 통로로 전환하여 관제센터로 송출하는 통신선로 선택 제어부(311)로 구성됨을 특징으로 하는 통신선 절단에 따른 듀얼 통신회로.A communication circuit having a controller dedicated line or DTMF modem 307 or a general public line passing section 303, which communicates with a DTMF modem when the dedicated line or DTMF modem 301 and the general public line section 303 are used. Matching transformer 305 for matching 600: 600Ω for both a dedicated line and a public line in a scheme, a general public circuit 303 including a circuit for communicating with the constant current circuit and a mechanical / electronic exchange, and a public aerial The trunk line of the lines L1 and L2 is connected to the telephone 312, and when the guard starts and the controller wants to send information to the control center, the line switching unit 301 connects to the general public line 303 to communicate. And a dedicated line passing section 309 for two-way communication as a passage for transmitting signals from the dedicated line modem to the control, and selecting a communication line according to a communication method registered in the controller. If the communication line with the control center is lost when the function and the dedicated line are used, the communication line selection control unit converts the communication line to the general public line passage of the general public line unit 303 and transmits it to the control center according to the protocol previously agreed. Dual communication circuit according to the communication line cut, characterized in that consisting of. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950012270A 1995-05-17 1995-05-17 Dual communication circuit KR0148087B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950012270A KR0148087B1 (en) 1995-05-17 1995-05-17 Dual communication circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950012270A KR0148087B1 (en) 1995-05-17 1995-05-17 Dual communication circuit

Publications (2)

Publication Number Publication Date
KR960043720A true KR960043720A (en) 1996-12-23
KR0148087B1 KR0148087B1 (en) 1998-08-17

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KR1019950012270A KR0148087B1 (en) 1995-05-17 1995-05-17 Dual communication circuit

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KR (1) KR0148087B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000023903A (en) * 1999-08-19 2000-05-06 이광호 A addition service system using cable network

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000023903A (en) * 1999-08-19 2000-05-06 이광호 A addition service system using cable network

Also Published As

Publication number Publication date
KR0148087B1 (en) 1998-08-17

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