KR970032202A

KR970032202A - Voice channel test device

Info

Publication number: KR970032202A
Application number: KR1019950045891A
Authority: KR
Inventors: 최하림
Original assignee: 유기범; 대우통신 주식회사
Priority date: 1995-11-30
Filing date: 1995-11-30
Publication date: 1997-06-26
Also published as: KR100195056B1

Abstract

본 발명은 음성급 채널의 시험 장치에 관한 것으로, 계측수단(10)이 시험용 아날로그신호를 생성하여 시험하고자 하는 채널 유니트에 전달하면, 다증화기(30)는 채널유니트(20)에서 PCM변조한 상기 신호와 가입자 음성신호를 다중화하여 추출부(40)로 전송하고, 상기 추출부(40)는 제어부(80)의 채널 정보에 의해 시험중인 채널 신호만을 추출하여 아날로그신호로 변환하기 위해 레퍼런스 채널유니트(50)로 전송하고, 상기 계측 수단(10)은 먼저 채널유니트(20)로 출력한 신호와 나중에 레퍼런스 채널유니트(50)로부터 입력된 신호를 표시함으로써 (삽입부(60)에서는 교환기로부터 입력된 프레임에 상기 실험용 신호를 삽입한 다음 역다중기(70)을 거쳐 신호변조하여 다시 상기 계측수단으로 전송한다). 음성급채널의 PCM과정 및 다중화/역다중화 과정에서 특정 채널만을 선택하여 시험할 수 있어 타채널은 정상 동작할 수 있으므로, 시험 시간을 현저히 감소시킬 수 있으며 타채널의 통신에 방해되지 않는다는 데 그 이점이 있다.The present invention relates to a test apparatus for a voice-level channel, and when the measuring means 10 generates a test analog signal and transmits it to a channel unit to be tested, the multiplier 30 performs the PCM modulation on the channel unit 20. The signal and the subscriber voice signal are multiplexed and transmitted to the extractor 40, and the extractor 40 extracts only the channel signal under test based on the channel information of the controller 80 and converts it into an analog signal. 50, and the measuring means 10 first displays the signal output to the channel unit 20 and later the signal input from the reference channel unit 50 (frame inserted from the exchange in the inserting unit 60). Insert the experimental signal into the signal, and then modulates the signal through the demultiplexer 70 and transmits the signal back to the measuring means. In the PCM process and multiplexing / demultiplexing process of the voice level channel, only a specific channel can be selected and tested, so that other channels can operate normally, which significantly reduces the test time and does not interfere with the communication of other channels. There is this.

Description

Voice channel test device

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

제1도는 본 발명에 따른 음성급 채널 시험 장치에 대한 구성도.1 is a block diagram of an audio channel test apparatus according to the present invention.

Claims

When the operator selects and inputs a channel to be tested at the time of the channel test, the measurement means generates and outputs a test analog signal and displays the signal state, and displays the state of the input analog signal after a predetermined time elapses (10). )and; When receiving an analog signal from the subscriber side or the measuring means 10, the PCM executes and converts it into a digital signal, and receives a digital signal, converts it into an analog signal and transmits the analog signal to the measuring means 10 or the subscriber side. Unit 20; A multiplexer (30) for receiving the digital signals converted from the plurality of channel units (20) and multiplexing them to form a frame; An extraction unit 40 receiving the multiplexed frame and extracting only a signal from a test channel; The reference channel unit 50 converts the extracted signal into an analog signal and transmits the converted signal to the measuring means 10. When receiving the analog signal from the measuring means 10, the PCM executes the PCM and converts the digital signal into a digital signal. ; An insertion unit 60 receiving a multiplexed frame from an exchanger or another module, inserting a digital signal input from the reference channel unit 50 into a test channel and outputting the digital signal; A demultiplexer (70) for receiving a frame from the inserting unit (60), demultiplexing the frame, and transmitting a digital signal to a corresponding channel unit (20); And receiving information of a specific channel to be tested from the measuring means 10 so as to cut off the subscriber line of the corresponding channel unit 20 so as to be connected to the measuring means 10, the extracting unit 40 and Voice channel test apparatus, characterized in that the control unit 80 is configured to provide the channel information to the inserting unit 60 to control to extract and insert the signal in the corresponding time slot.

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