KR910010974A - CO / IP line interface circuit - Google Patents

CO / IP line interface circuit Download PDF

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Publication number
KR910010974A
KR910010974A KR1019890017552A KR890017552A KR910010974A KR 910010974 A KR910010974 A KR 910010974A KR 1019890017552 A KR1019890017552 A KR 1019890017552A KR 890017552 A KR890017552 A KR 890017552A KR 910010974 A KR910010974 A KR 910010974A
Authority
KR
South Korea
Prior art keywords
line
switch
ring
capacitor
tip
Prior art date
Application number
KR1019890017552A
Other languages
Korean (ko)
Other versions
KR920006552B1 (en
Inventor
최성봉
Original Assignee
정몽헌
현대전자산업 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.)
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Publication date
Application filed by 정몽헌, 현대전자산업 주식회사 filed Critical 정몽헌
Priority to KR1019890017552A priority Critical patent/KR920006552B1/en
Publication of KR910010974A publication Critical patent/KR910010974A/en
Application granted granted Critical
Publication of KR920006552B1 publication Critical patent/KR920006552B1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M7/00Arrangements for interconnection between switching centres

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

내용 없음No content

Description

국선 및 전용선 인터페이스 겸용회로CO / IP line interface circuit

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

제2도는 본 발명에 따른 국선 및 전용선 인터페이스 겸용회로도2 is a circuit diagram of a trunk line and a dedicated line interface according to the present invention

Claims (1)

국선측 Tip선은 스위치 SW1및 SW2를 경유해 임피던스매칭트랜스 T에 접속되고, Ring선은 캐패시터 C1를 경유해 상기 임피던스매칭트랜스 T에 접속되며, 상기 트랜스 T는 다이오드 D1및 D2를 경유해 변환부(3)에 접속되고, 상기 스위치 SW1은 경유한 Tip선 및 Ring 선간에는 루프회로(2)를 구성하고, 상기 Tip선은 캐패시터 C2를, Ring선은 스위치 SW2를 각기 경유해 링신호 감지부(1)에 접속되는 국선 및 내선간을 인터페이스하는 회로에 있어서, 상기 국선측 Tip선은 스위치 SW4및 SW11을 경유해 상기 루프회로(2)에 접속되며, Ring단자는 스위치 SW5를 경유해 상기 캐패시터 C1과 상기 루프회로(2)에 접속되되, 상기 스위치 SW4및 SW11의 접속점은 캐패시터 C2를 경유해 링/라인 감지부(4)에 접속되며, 전용선측 M선은 스위치 SW9를 접속하며, 전용선 E선은 스위치 SW1을 경유해 상기 링/라인 감지부(4)에 접속되되, 상기 스위치 SW10은 상기 캐패시터 C1및 스위치 SW5의 접속점에 접속되며, 상기 스위치 SW11에는 스위치 SW12가 병렬접속되고, 상기 캐패시터 C2및 링/라인 감지부(4)의 접속점은 스위치 SW을 경유해 -Vcc단자에 접촉되도록 구성하여 그로 인하여, 내선 및 국선간, 내선 및 전용선간의 인터페이스를 하도록 하는 것을 특징으로하는 국선 및 전용선 인터페이스 겸용회로.The tip line of the trunk line is connected to the impedance matching transformer T via the switches SW 1 and SW 2 , the ring line is connected to the impedance matching transformer T via the capacitor C 1 , and the transformer T is connected to the diodes D 1 and D 2. Is connected to the conversion section 3 via the switch SW 1 , and the switch SW 1 constitutes a loop circuit 2 between the tip wire and the ring wire, the tip wire is the capacitor C 2 , and the ring wire is the switch SW 2 . In a circuit for interfacing a trunk line and an internal line respectively connected to the ring signal detecting unit 1 via each other, the tip line of the trunk line is connected to the loop circuit 2 via switches SW 4 and SW 11 , and a ring The terminal is connected to the capacitor C 1 and the loop circuit 2 via the switch SW 5 , and the connection points of the switches SW 4 and SW 11 are connected to the ring / line sensing unit 4 via the capacitor C 2 . , M, and private line side line is connected to the switch SW 9, private line E line switch Via the SW 1 doedoe connected to the ring / line detection unit 4, the switch SW 10 is connected to the connection point of the capacitor C 1 and the switch SW 5, the switch SW 11, the switch SW 12 are connected in parallel, The connection point of the capacitor C 2 and the ring / line sensing unit 4 is configured to be in contact with the -Vcc terminal via the switch SW, thereby making the interface between the station and the trunk line, the station and the dedicated line. And dedicated line interface circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890017552A 1989-11-30 1989-11-30 An interface for both trunk and tie KR920006552B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890017552A KR920006552B1 (en) 1989-11-30 1989-11-30 An interface for both trunk and tie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890017552A KR920006552B1 (en) 1989-11-30 1989-11-30 An interface for both trunk and tie

Publications (2)

Publication Number Publication Date
KR910010974A true KR910010974A (en) 1991-06-29
KR920006552B1 KR920006552B1 (en) 1992-08-08

Family

ID=19292320

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890017552A KR920006552B1 (en) 1989-11-30 1989-11-30 An interface for both trunk and tie

Country Status (1)

Country Link
KR (1) KR920006552B1 (en)

Also Published As

Publication number Publication date
KR920006552B1 (en) 1992-08-08

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