KR940001610A - European-style (CEPT) trunk interface device in an integrated telecommunication network - Google Patents
European-style (CEPT) trunk interface device in an integrated telecommunication network Download PDFInfo
- Publication number
- KR940001610A KR940001610A KR1019920011032A KR920011032A KR940001610A KR 940001610 A KR940001610 A KR 940001610A KR 1019920011032 A KR1019920011032 A KR 1019920011032A KR 920011032 A KR920011032 A KR 920011032A KR 940001610 A KR940001610 A KR 940001610A
- Authority
- KR
- South Korea
- Prior art keywords
- channel
- european
- trunk interface
- main control
- control unit
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Telephonic Communication Services (AREA)
Abstract
본 발명은 종합 정보 통신망 사설 자동 구내 교환기에, 하이브리드 회로를 사용한 단일 보드의 장치로, 1차군속도 인터페이스를 제공해 주는 유럽 방식(CEPT : CONFERENCE EUROPEAN DE POSTES ETTELECOMMUNICATION, 이하 CEPT)라 한다)의 디지탈 트렁크 접속장치에 관한 것이다.The present invention is a single-board device using a hybrid circuit in a private automatic premises exchange network of a comprehensive telecommunication network, which is a European-style digital trunk connection (CEPT) that provides a first-rate speed interface (CEPT). Relates to a device.
따라서, 본 발명은 종합 정보 통신망 사설 자동 구내 전화기(PABX), 또는 NT 12 시스템에 내장되어 국설 교환기나, 다른 종합 정보 통신망 사설 자동 구내 전화기간에 디지탈 트렁크 접속을 제공하며, 2.048Mbps의 1차군 속도 액세스 인터페이스를 지원하며, D 채널 콘트롤러를 이용하여, D 채널 정보의 시스템 상위 레벨로부터의 정보 수신시에, 주제어부(71)의 시리얼 통신 포트를 사용하며, 수신된 신호에서 추출한 8kHz 참조클럭을, 클럭 발생부 내부에서 발생시킨 8kHz 클럭과 비교하여 프레임 펄스 및 2.048MHz, 4MHz 클럭을 출력하여 타 보드에 제공함으로써 시스템의 동기를 일치시킨다. 또한, 2.048Mbps의 통신 속도를 지원하여, 국내 여건상 서비스지원이 불가한 1.544Mbps급 T1 방식을 대치하여, 대용량의 데이타 전송 및 화상 회의 시스템과 같은 고속의 서비스가 가능하게 된다.Accordingly, the present invention provides a digital trunk connection at a local exchange or other integrated telecommunications private autonomous telephone period, embedded in an integrated telecommunications private autonomous telephone (PABX), or an NT 12 system, and has a primary speed of 2.048 Mbps. 8kHz reference clock extracted from the received signal using the serial communication port of the main control unit 71 when receiving information from the system upper level of the D channel information by using the D channel controller, Compared to the 8kHz clock generated inside the clock generator, the system outputs frame pulses and 2.048MHz and 4MHz clocks to other boards to match the synchronization of the system. In addition, by supporting a communication speed of 2.048Mbps, it replaces the 1.544Mbps class T1 system, which is not available in the domestic conditions, high-speed services such as large data transmission and video conferencing system is possible.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 종합 정보 통신망 접속 시스템의 전체 구성도1 is an overall configuration diagram of a comprehensive information network connection system
제2도는 1 차군 속도 액세스 인터페이스부의상세 블록도2 is a detailed block diagram of the primary group speed access interface unit.
제3도는 CEPT 프레임의 구성예시도3 is a structural example of a CEPT frame
제4도는 ST-BUS의 예시도4 is an illustration of ST-BUS
제5도는 프레임 펄스의타이밍도5 is a timing diagram of frame pulses.
* 도면의 주요부분에 대한 부호의설명* Explanation of symbols for the main parts of the drawings
10,40 : S인터페이스부 50 : R인터페이스부10,40: S interface part 50: R interface part
60 : 주제어 스위칭장치 70 :1차군 속도 액세스 인터페이스부60: main controller 70: primary speed access interface unit
71 : 주제어부, 72,73 : 제어 인터페이스부71: main controller, 72,73: control interface
74,75 : D채널 콘트롤러 76 : CEPT 트렁크 인터페이스부74,75: D-channel controller 76: CEPT trunk interface unit
77 : 클럭 발생부 78 : 사예 표시부77: clock generator 78: example display
79 : 타임 스위치 80 : U인터페이스79: time switch 80: U interface
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019920011032A KR950008214B1 (en) | 1992-06-24 | 1992-06-24 | Cept trunk interface unit of b-isdn |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019920011032A KR950008214B1 (en) | 1992-06-24 | 1992-06-24 | Cept trunk interface unit of b-isdn |
Publications (2)
Publication Number | Publication Date |
---|---|
KR940001610A true KR940001610A (en) | 1994-01-11 |
KR950008214B1 KR950008214B1 (en) | 1995-07-26 |
Family
ID=19335190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019920011032A KR950008214B1 (en) | 1992-06-24 | 1992-06-24 | Cept trunk interface unit of b-isdn |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR950008214B1 (en) |
-
1992
- 1992-06-24 KR KR1019920011032A patent/KR950008214B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR950008214B1 (en) | 1995-07-26 |
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