KR930011570A - Public switched telephone network connection circuit of U interface digital telephone - Google Patents

Public switched telephone network connection circuit of U interface digital telephone Download PDF

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Publication number
KR930011570A
KR930011570A KR1019910021262A KR910021262A KR930011570A KR 930011570 A KR930011570 A KR 930011570A KR 1019910021262 A KR1019910021262 A KR 1019910021262A KR 910021262 A KR910021262 A KR 910021262A KR 930011570 A KR930011570 A KR 930011570A
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KR
South Korea
Prior art keywords
digital
public switched
interface
switched telephone
telephone network
Prior art date
Application number
KR1019910021262A
Other languages
Korean (ko)
Inventor
김영근
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 KR1019910021262A priority Critical patent/KR930011570A/en
Publication of KR930011570A publication Critical patent/KR930011570A/en

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Abstract

종합정보통신망에 있어서, U인터페이스전화기를 공중 교환 전화망에 연결하는 회로에 관한 것이다. 현재까지의 종합 정보 통신망에서는 기존 전화단말과 종합정보통신망 단말등이 혼재되어 상호 접속에 문제점이 많았던 관계로 U인터페이스전화기를 공중 교환 전화망에 연결하여 그와 같은 혼재를 효율적으로 운영한다.In a general information communication network, the present invention relates to a circuit for connecting a U interface telephone to a public switched telephone network. In the integrated information communication network up to now, the existing telephone terminal and the integrated information communication network terminal have been mixed, and there are many problems in the interconnection. Therefore, the U interface telephone is connected to the public switched telephone network to efficiently operate such mixing.

Description

U인터페이스 디지탈 전화기의 공중 교환 전화망 연결 회로Public switched telephone network connection circuit of U interface digital telephone

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

제1도는 본 발명의 회로도.1 is a circuit diagram of the present invention.

제2도는 각 입출력 버스상의 채널 상태도.2 is a channel state diagram on each input / output bus.

Claims (1)

U인터페이스 디지탈전화기를 구비한 종합정보통신망 교환기 시뮬레이터에 있어서, 시스템을 제어하기 위한 마이크로컴퓨터(1)와, 공중 교환 전화망 링신호를 검출하는 링검출부(8)와, 상기 공중 교환 전화망으로부터의 아날로그 신호를 디지탈신호로 변환시키거나 디지탈신호를 아날로그신호로 변환시켜 공중 교환 전화망으로 내보내는 콤보코텍(5)와, 상기 마이크로컴퓨터(1)의 제어를 받아 동작하며 상기 U인터페이스 디지탈 전화와 공중교환 전화망간의 디지탈신호를 받아 스위칭 시켜주는 디지탈 타임 크로스 포인트 스위치(4)와, 상기 디지탈 타임 크로스 포인트 스위치(4)와 연결되며 U인터페이스 디지탈전화기와 인터페이스하기 위해 입출력 버스를 연결하는 디지탈 네트워크 인터페이스부(3)와, 통신프로토콜 및 전송의 신뢰성을 확보하기 위한 CRC체크함을 전송블럭상에 부가하는 하이 레벨 데이타 링크 컨트롤 프로토콜컨트롤러(2)로 구성함을 특징으로 하는 U인터페이스 전화기의 공중 교환 전화망 연결 회로.A comprehensive information network switching simulator having a U-interface digital telephone, comprising: a microcomputer (1) for controlling a system, a ring detection section (8) for detecting a public switched telephone network ring signal, and an analog signal from the public switched telephone network Is operated under the control of the microcomputer (1) and the combo cotec (5) for converting a digital signal into a digital signal or converting a digital signal into an analog signal and sending it to a public switched telephone network. A digital time cross point switch 4 for receiving and switching digital signals, and a digital network interface unit 3 connected to the digital time cross point switch 4 and connecting an input / output bus to interface with a U interface digital telephone. , CRC to secure communication protocol and transmission reliability A public switched telephone network connection circuit of a U interface telephone, characterized by comprising a high level data link control protocol controller (2) that adds a check box to a transmission block. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910021262A 1991-11-26 1991-11-26 Public switched telephone network connection circuit of U interface digital telephone KR930011570A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910021262A KR930011570A (en) 1991-11-26 1991-11-26 Public switched telephone network connection circuit of U interface digital telephone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910021262A KR930011570A (en) 1991-11-26 1991-11-26 Public switched telephone network connection circuit of U interface digital telephone

Publications (1)

Publication Number Publication Date
KR930011570A true KR930011570A (en) 1993-06-24

Family

ID=67356284

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910021262A KR930011570A (en) 1991-11-26 1991-11-26 Public switched telephone network connection circuit of U interface digital telephone

Country Status (1)

Country Link
KR (1) KR930011570A (en)

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