KR960028623A - Subscriber Matching Circuit of Switching System - Google Patents

Subscriber Matching Circuit of Switching System Download PDF

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Publication number
KR960028623A
KR960028623A KR1019940040809A KR19940040809A KR960028623A KR 960028623 A KR960028623 A KR 960028623A KR 1019940040809 A KR1019940040809 A KR 1019940040809A KR 19940040809 A KR19940040809 A KR 19940040809A KR 960028623 A KR960028623 A KR 960028623A
Authority
KR
South Korea
Prior art keywords
subscriber
line
switching system
relay
circuit
Prior art date
Application number
KR1019940040809A
Other languages
Korean (ko)
Other versions
KR0143371B1 (en
Inventor
심재권
Original Assignee
김광호
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 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019940040809A priority Critical patent/KR0143371B1/en
Publication of KR960028623A publication Critical patent/KR960028623A/en
Application granted granted Critical
Publication of KR0143371B1 publication Critical patent/KR0143371B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/20—Testing circuits or apparatus; Circuits or apparatus for detecting, indicating, or signalling faults or troubles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents

Abstract

1. 청구범위 기재된 발명이 속한 시술분야1. Field of procedure to which the claimed invention belongs

전화가입자와 교환기사이를 정합할 수 있는 가입자정합회로에 관한 기술이다.It is a technology for subscriber matching circuit that can match between subscriber and exchange.

2. 발명이 해결하고자 하는 기술적 과제2. Technical problem to be solved by the invention

가입자선로의 루프저항이 2㏀으로 한정되어 있으므로 2㏀초과될 경우에도 정합할 수 있도록한다.The loop resistance of the subscriber line is limited to 2㏀, so that it can be matched even if it exceeds 2㏀.

3. 발명의 해결방법의 요지3. Summary of Solution to Invention

부스터를 이용하여 공급전원을 승압하여 가입자 루프형성 시 공급하므로 3㏀까지의 가입자 루프를 정합한다.The booster is used to boost the supply and supply it when the subscriber loop is formed.

4. 발명의 중요한 용도4. Important uses of the invention

교환시스템의 가입자정합회로에 적용한다.Applies to subscriber matching circuit of switching system.

Description

교환시스템의 가입자 정합회로Subscriber Matching Circuit of Switching System

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

제2도는 본발명에 따른 가입자 정합회로도, 제3도는 본발명에 따른 가입자 루프 확장회로의 구체회로도2 is a subscriber matching circuit diagram according to the present invention, and FIG. 3 is a detailed circuit diagram of a subscriber loop expansion circuit according to the present invention.

Claims (2)

교환시스템의 가입자 정합회로에 있어서, 상기교환시스템의 선로로부터 유입되는 과전압, 과전류, 낙뢰,정전기로부터 가입자회로 내부를 보호하기 위한 과전압/과전류 보호부(10)와, 상기 과전압/과전류 보호부(10)에 연결되어선로시험시 선로를 접속하는 기능을 수행하는 선로접속 릴레이(12)와, 상기 선로접속 릴레이(12)에 연결되어 링발생시 선로를 접속하는 기능을 수행하는 링접속 릴레이(14)와, 가입자선로를 시험하기 위해 접속하는 기능을 수행하는 가입자접속릴레이(16)와, 상기 링접속릴레이(14)와 가입자접속 릴레이(16)사이에 접속되어 상기 교환시스템으로부터 공급되는 전원을 승압하여 가입자 루프 정합 임피던스를 상승시키는 가입자 루프 확장회로 (22)와, 상기 가입자 접속 릴에이(16)에 접속되어 가입자선로 상태감시, 전류공급, 2와이어 신호를 4와이어신호로 변환하거나 4와이어신호를 2와이어 신호로 변환하는 기능을 수행하는 슬릭(18)과, 상기 슬릭(18)에 연결되어 아나로그 음성신호를 디지탈 음성신호로 변환하거나 디지탈음성신호를 아나로그 음성신호로 변환하는 기능을 수행하는 코덱(20)으로 구성함을 특징으로 하는 가입자 정합회로.In the subscriber matching circuit of the switching system, an overvoltage / overcurrent protection unit (10) for protecting the inside of the subscriber circuit from overvoltage, overcurrent, lightning, and static electricity flowing from the line of the switching system, and the overvoltage / overcurrent protection unit (10). And a line connection relay 12 connected to the line during the test of the line, and a ring connection relay 14 connected to the line connection relay 12 to connect the line when a ring is generated. And a subscriber connection relay 16 which performs a function of connecting to test the subscriber line, and is connected between the ring connection relay 14 and the subscriber connection relay 16 to boost the power supplied from the switching system. Subscriber loop extension circuit 22 for increasing loop matching impedance and subscriber line relay 16 for monitoring subscriber line status, supplying current, 2-wire And a slick 18 for converting a 4-wire signal or a 4-wire signal into a 2-wire signal, and connected to the slick 18 to convert an analog voice signal into a digital voice signal or a digital voice signal. And a codec (20) for converting an analog voice signal. 제1항에 있어서, 상기 가입자 루프확장회로(18)는, 상기 교환시스템으로부터 공급되는 -48V의 전원을 승압하여 -70V내지 -90V의 전압을 출력하는 부스터(30)와, 상기 부스터(30)에 연결되어 전화기 핸드셋의 훅크 온/오프에 따라가입자 푸프를 형성할 수 있도록 스위칭하는 릴레이(32)와, 상기 릴레이(32)의 양단에 연결되어 가입자루프를 정합하기위한 트랜스포머(34)로 구성함을 특징으로 하는 가입자 정합회로.The booster circuit (30) according to claim 1, wherein the subscriber loop expansion circuit (18) includes: a booster (30) for boosting a -48V power supplied from the switching system and outputting a voltage of -70V to -90V; And a relay 32 connected to the phone handset so as to form an subscriber pore according to the hook on / off of the telephone handset, and a transformer 34 connected to both ends of the relay 32 to match the subscriber loop. Subscriber matching circuit, characterized in that.
KR1019940040809A 1994-12-31 1994-12-31 Subscriber matching circuit for exchanger KR0143371B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940040809A KR0143371B1 (en) 1994-12-31 1994-12-31 Subscriber matching circuit for exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940040809A KR0143371B1 (en) 1994-12-31 1994-12-31 Subscriber matching circuit for exchanger

Publications (2)

Publication Number Publication Date
KR960028623A true KR960028623A (en) 1996-07-22
KR0143371B1 KR0143371B1 (en) 1998-08-17

Family

ID=19406312

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940040809A KR0143371B1 (en) 1994-12-31 1994-12-31 Subscriber matching circuit for exchanger

Country Status (1)

Country Link
KR (1) KR0143371B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100408739B1 (en) * 2001-12-04 2003-12-11 엘지이노텍 주식회사 Analog slic circuit for board of switch board subscriber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100408739B1 (en) * 2001-12-04 2003-12-11 엘지이노텍 주식회사 Analog slic circuit for board of switch board subscriber

Also Published As

Publication number Publication date
KR0143371B1 (en) 1998-08-17

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