KR940013029A

KR940013029A - Subscriber circuit abnormality judgment circuit

Info

Publication number: KR940013029A
Application number: KR1019920022121A
Authority: KR
Inventors: 조헌억
Original assignee: 정용문; 삼성전자 주식회사
Priority date: 1992-11-23
Filing date: 1992-11-23
Publication date: 1994-06-24

Abstract

교환시스템의 가입자회로가 동작하고 있는 상태에서 운용되지 않고 있는 가입자포트를 이용하여 상기 가입자회로의 이상유무를 판단할 수 있도록 하는 회로에 관한 것이다.The present invention relates to a circuit for determining whether an abnormality of the subscriber circuit is determined by using a subscriber port which is not operated while the subscriber circuit of the switching system is operating.

상기 가입자회로의 유휴포트를 검출하여 테스트 단자에 연결하며, 소정 주기를 일련의 프로그램을 동작시켜 상기 가입자회로의 링신호 검출, 루프검출, 링신호송출, 복합다주파송수신등 각종 기능에 대한 테스트 동작을 제어하기 위한 신호들을 발생하여 상기 가입자회로나 테스트회로 자체로 공급하여 실제와 동일한 가상의 환경을 조성하고 그 상태를 분석함으로써 상기 가입자회로의 이상 유무를 판단한다.The idle port of the subscriber circuit is detected and connected to a test terminal, and a series of programs are operated for a predetermined period to test various functions such as ring signal detection, loop detection, ring signal transmission, and complex multi-frequency reception of the subscriber circuit. It generates signals for controlling the signal and supplies it to the subscriber circuit or the test circuit itself to create a virtual environment that is the same as the actual state and analyze the state to determine whether there is an abnormality of the subscriber circuit.

Description

Subscriber circuit abnormality judgment circuit

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

제1도는 본 발명에 따른 가입자회로 이상 유무 판단회로도.1 is a circuit diagram for determining whether there is an error in a subscriber circuit according to the present invention.

Claims

A circuit for testing a subscriber circuit (SLC) of a switching system, wherein the idle port of the subscriber circuit (SLC) is detected and a series of programs are operated at predetermined intervals to test various functions of the subscriber circuit (SLC). Control unit 90 for controlling the overall operation of the test circuit, such as controlling and inputting and analyzing the result, and the idle port of the subscriber circuit SLC under the control of the control unit 90 and the test. The switching unit 10 for connecting the circuit, and the control unit 90 generates a ring transmission request signal from the subscriber circuit SLC to generate a ring signal in response to the ring transmission request signal from the subscriber circuit SLC. And a ring signal detection unit (100) for receiving this through the switching unit (10) and informing the control unit (90) of the reception result.

According to claim 1, The control unit 90 is connected to the switching unit 10 in order to determine whether the impedance matching and disconnection of the subscriber circuit (SLC) to form a loop and the result of the control unit And a loop detection unit (70) to indicate to (90).

The method of claim 2, wherein the ring signal is transmitted to the subscriber circuit SLC through the switching unit 10 to check the ring signal detection state of the subscriber circuit SLC under the control of the controller 90. And a ring signal transmitter (80).

The method of claim 3, wherein the multi-frequency signal is transmitted through the switching unit 10 to check the multi-frequency reception state of the subscriber circuit SLC under the control of the controller 90, or the subscriber circuit. In order to confirm the multi-frequency transmission state of the SLC, the multi-frequency signal is transmitted from the subscriber circuit SLC through the switching unit 10 in response to the multi-frequency transmission request signal generated by the control unit 90. And a complex multi-frequency transmitting and receiving unit (60) for receiving this when it is transmitted and notifying the result to the control unit (90).

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