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KR910016178A - Trunk Signal Detection and Voice Call Circuit of Private Exchange - Google Patents

Trunk Signal Detection and Voice Call Circuit of Private Exchange Download PDF

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Publication number
KR910016178A
KR910016178A KR1019900002144A KR900002144A KR910016178A KR 910016178 A KR910016178 A KR 910016178A KR 1019900002144 A KR1019900002144 A KR 1019900002144A KR 900002144 A KR900002144 A KR 900002144A KR 910016178 A KR910016178 A KR 910016178A
Authority
KR
South Korea
Prior art keywords
circuit
signal
voice call
private exchange
detection circuit
Prior art date
Application number
KR1019900002144A
Other languages
Korean (ko)
Other versions
KR920006143B1 (en
Inventor
민경화
Original Assignee
정용문
삼성전자 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 정용문, 삼성전자 주식회사 filed Critical 정용문
Priority to KR1019900002144A priority Critical patent/KR920006143B1/en
Publication of KR910016178A publication Critical patent/KR910016178A/en
Application granted granted Critical
Publication of KR920006143B1 publication Critical patent/KR920006143B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Devices For Supply Of Signal Current (AREA)

Abstract

내용 없음No content

Description

사설교환기의 트렁크 신호감지 및 음성 통화회로Trunk Signal Detection and Voice Call Circuit of Private Exchange

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

제2도는 본 발명에 따른 회로도.2 is a circuit diagram according to the present invention.

Claims (1)

사설교환기의 트렁크신호 감지 및 음성통화 회로에 있어서, 국설 교환기, 또는 선로상으로 유입되는 고전압, 과전류로부터 회로를 보호하여 DC를 바이패스시키는 DC커플링회로(1)와, 상기 DC커플링회로(1)의 링신호를 입력하여 기준전압과 비교에 의해 링신호를 검출하는 링 검출회로(2)와, 상기 DC커플링 회로(1)의 릴레이 온에 따라 국선 라인 인터페이스로부터 사설교환기로 입력되는 접지신호를 검출하는 접지시작검출회로(3)와, 상기 DC커플링회로(1)의 Tip, Ring단의 인가 전압에따라 구동되어 극성반전과 후크온/오프를 검출하는 극성 반전 밧데리 감지회로(4)와, 상기 접지시작검출회로(3)와 전후 밧데리 감지회로(4)의 출력에 따라 통화중 신호를 검출하는 통화중 신호 검출회로(5)로 구성됨을 특징으로 하는 사설교환기의 트렁크 신호감지 및 음성 통화회로.In the trunk signal detection and voice call circuit of a private exchange, a DC coupling circuit (1) for bypassing DC by protecting the circuit from a high voltage or overcurrent flowing into a local exchange or a line, and the DC coupling circuit ( A ring detection circuit (2) for inputting the ring signal of 1) to detect the ring signal by comparison with a reference voltage, and a ground input from a trunk line line interface to a private exchange in accordance with the relay on of the DC coupling circuit (1); A ground start detection circuit 3 for detecting a signal, and a polarity inversion battery detection circuit 4 for driving polarity inversion and hook-on / off by driving according to an applied voltage at a tip and a ring end of the DC coupling circuit 1. And a trunk signal detection circuit (5) for detecting a busy signal according to the outputs of the ground start detection circuit (3) and the front and rear battery detection circuits (4). Voice call . ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900002144A 1990-02-21 1990-02-21 A trunk signals detection circuit and voice communication circuit of p.a.b.x. KR920006143B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900002144A KR920006143B1 (en) 1990-02-21 1990-02-21 A trunk signals detection circuit and voice communication circuit of p.a.b.x.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900002144A KR920006143B1 (en) 1990-02-21 1990-02-21 A trunk signals detection circuit and voice communication circuit of p.a.b.x.

Publications (2)

Publication Number Publication Date
KR910016178A true KR910016178A (en) 1991-09-30
KR920006143B1 KR920006143B1 (en) 1992-07-31

Family

ID=19296275

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900002144A KR920006143B1 (en) 1990-02-21 1990-02-21 A trunk signals detection circuit and voice communication circuit of p.a.b.x.

Country Status (1)

Country Link
KR (1) KR920006143B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100233097B1 (en) * 1996-10-09 1999-12-01 윤종용 Circuit for detecting state of ring and hook switch in line interface unit of telephone system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100233097B1 (en) * 1996-10-09 1999-12-01 윤종용 Circuit for detecting state of ring and hook switch in line interface unit of telephone system

Also Published As

Publication number Publication date
KR920006143B1 (en) 1992-07-31

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