KR950010448A

KR950010448A - Loop connection circuit of communication interface

Info

Publication number: KR950010448A
Application number: KR1019930019701A
Authority: KR
Inventors: 권부영
Original assignee: 이헌조; 주식회사 금성사
Priority date: 1993-09-25
Filing date: 1993-09-25
Publication date: 1995-04-28

Abstract

본 발명은 통신 인터페이스의 루프 연결회로에 관한 것으로서 알에스232씨호로의 단말기를 루프로 구성함으로 인해 여러 단말기 상호 통신이 가능 하도록 한 것이다.The present invention relates to a loop connection circuit of a communication interface, and is configured to allow communication between various terminals by configuring a terminal of an RS232 signal as a loop.

호스트와 단말기 간의 데이타를 인터페이스 하는 일에스 232C와, 상기 모뎀과 인터페이스 하며 내부의 릴레이에 의해 단말 접속시 데이타의 흐름을 변경시키는 제3루프 콘센트(LCT3)와, 상기 제3루프 콘센트에서 출력된 데이타를 분석하여 자신의 지정 어드레스가 아닐경우 릴레이를 오프하여 통과시키는 제2루프 콘센트와, 상기 제2루프 콘센트를 통과한 데이타를 분석하여 저신의 지정 어드레스일 경우 릴레이를 온시켜 전송요구 신호를 온시켜 터미날과 데이타를 송수신 하는 제1루프 콘센트로 이루어지으로써 달성되는 것이다.One 232C for interfacing data between the host and the terminal, a third loop outlet LCT3 for interfacing with the modem and changing the flow of data when the terminal is connected by an internal relay, and data output from the third loop outlet. Analyze the second loop outlet to turn off the relay when the address is not its own address, and the data passing through the second loop outlet are analyzed. This is achieved by the first loop receptacle that sends and receives data to and from the terminal.

Description

Loop connection circuit of communication interface

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

제3도의 (가)는 본 발명 통신 인터페이스의 루프 연결회로 구성도, (나)는 제3도 (가)에 흐르는 통신 데이타 구성도,Figure 3 (a) is a loop connection circuit configuration diagram of the communication interface of the present invention, (b) is a communication data configuration diagram flows in Figure 3 (a),

제4도는 모뎀과 터미날간 데이타 흐름도.4 is a data flow diagram between a modem and a terminal.

Claims

RS 232 for interfacing data between the host and the terminal, a third loop outlet LCT3 that interfaces with the modem and changes the flow of data when the terminal is connected by an internal relay, and outputs from the third loop outlet. Analyzes the received data and turns off the relay if it is not its designated address, and analyzes the data passing through the second loop outlet, and turns on the relay if the designated address is the current signal to transmit the transmission request signal. A loop connection circuit of a communication interface, comprising: a first loop outlet for turning on and receiving data with a terminal.

※ Note: The disclosure is based on the initial application.