KR100817495B1 - 감시광 루핑 방법을 이용한 피오엔 원격 광선로망 감시장치 - Google Patents
감시광 루핑 방법을 이용한 피오엔 원격 광선로망 감시장치 Download PDFInfo
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- KR100817495B1 KR100817495B1 KR1020010072241A KR20010072241A KR100817495B1 KR 100817495 B1 KR100817495 B1 KR 100817495B1 KR 1020010072241 A KR1020010072241 A KR 1020010072241A KR 20010072241 A KR20010072241 A KR 20010072241A KR 100817495 B1 KR100817495 B1 KR 100817495B1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
- H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
- H04J2203/0062—Testing
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- Signal Processing (AREA)
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Abstract
Description
Claims (5)
- 전화국사 내에 설치된 OLT(Optical Line Terminal)와, 망 가입자 단말 장비에 설치된 복수의 ONU(Optical Network Unit)와, OLT와 복수의 ONU에 양방향으로 신호광을 전송할 수 있도록 설치된 운용 경로 광심선과, OLT와 복수의 ONU 사이에 감시광을 전송할 수 있도록 설치된 보호 경로 광심선과, 운용 경로 광심선과 보호 경로 광심선을 각각의 ONU에 분기시킬 수 있도록 설치된 스플리터로 이루어지는 광선로망을 구비하는 PON 시스템에 있어서,상기 OLT 전방의 상기 운용 경로 광심선 상에 설치되어 감시광을 발생시키는 광펄스 시험기(OTDR)와,상기 스플리터 및 상기 ONU 전방의 상기 운용 경로 광심선과 보호 경로 광심선의 개소에 설치되어 신호광은 통과시키고 감시광은 광선로망의 모든 구간을 루핑(Looping)시키는 다수개의 루핑 광소자와,상기 OLT 전방의 상기 보호 경로 광심선 상에 설치되어 감시광을 상기 광펄스 시험기로 반사시키는 반사기(Reflector)를 포함하는 감시광 루핑 방법을 이용한 PON 원격 광선로망 감시장치.
- 제 1 항에 있어서, 상기 루핑 광소자는 2개의 1×2 WDM 커플러로 구성되며, 광심선과의 접속 및 절단이 용이하도록 접속부분에 커넥터가 설치되는 것을 특징으로 하는 감시광 루핑 방법을 이용한 PON 원격 광선로망 감시장치.
- 제 1 항에 있어서, 상기 스플리터는 운용 경로 광심선 및 보호 경로 광심선을 다수개의 ONU로 분기시키는 분기구조와, 상기 감시광이 모든 분기 광심선들을 순차적으로 추적할 수 있도록 하기 위해 내부에 설치되는 2개의 1×2 WDM 커플러와 다수의 루핑 광소자를 포함하는 것을 특징으로 하는 감시광 루핑 방법을 이용한 PON 원격 광선로망 감시장치.
- 제 1 또는 제 3 항에 있어서, 상기 스플리터는 본체 전면에 전화국의 OLT로부터 연장된 상기 운용 경로 광심선을 접속하기 위한 운용 경로 포트와 상기 보호 경로 광심선을 접속하기 위한 보호 경로 포트를 구비하고,각각의 상기 ONU로 인출되는 운용 경로 광심선 및 보호 경로 광심선을 접속하기 위한 다수의 ONU 출력 포트를 구비하는 것을 특징으로 하는 감시광 루핑 방법을 이용한 PON 원격 광선로망 감시장치.
- 제 4 항에 있어서, 스플리터의 출력포트 중 미운용 포트를 루핑 광소자로 연결하는 것을 특징으로 하는 감시광 루핑 방법을 이용한 PON 원격 광선로망 감시장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020010072241A KR100817495B1 (ko) | 2001-11-20 | 2001-11-20 | 감시광 루핑 방법을 이용한 피오엔 원격 광선로망 감시장치 |
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KR1020010072241A KR100817495B1 (ko) | 2001-11-20 | 2001-11-20 | 감시광 루핑 방법을 이용한 피오엔 원격 광선로망 감시장치 |
Publications (2)
Publication Number | Publication Date |
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KR20030041448A KR20030041448A (ko) | 2003-05-27 |
KR100817495B1 true KR100817495B1 (ko) | 2008-03-27 |
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KR1020010072241A Expired - Fee Related KR100817495B1 (ko) | 2001-11-20 | 2001-11-20 | 감시광 루핑 방법을 이용한 피오엔 원격 광선로망 감시장치 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100893752B1 (ko) * | 2008-04-11 | 2009-04-17 | 주식회사 케이티엔티 | 광선로 감시시스템에 적용되는 증설이 가능한 광스위치반 |
CN101917226B (zh) * | 2010-08-23 | 2016-03-02 | 中兴通讯股份有限公司 | 一种在无源光网络中进行光纤故障诊断的方法及光线路终端 |
RU2506701C1 (ru) * | 2012-08-01 | 2014-02-10 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" | Способ обнаружения несанкционированных отводов сигнала с одномодовых оптических волокон |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH027722A (ja) * | 1988-06-27 | 1990-01-11 | Fujitsu Ltd | 光中継システム |
JPH09145539A (ja) * | 1995-11-20 | 1997-06-06 | Furukawa Electric Co Ltd:The | 光線路保守システム |
JP2000278212A (ja) * | 1999-03-25 | 2000-10-06 | Kdd Corp | 光伝送路障害点探索システム |
KR20010073397A (ko) * | 2000-01-14 | 2001-08-01 | 오길록 | 비동기전달모드-수동형광가입자망의 광분배망 서브시스템 |
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2001
- 2001-11-20 KR KR1020010072241A patent/KR100817495B1/ko not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH027722A (ja) * | 1988-06-27 | 1990-01-11 | Fujitsu Ltd | 光中継システム |
JPH09145539A (ja) * | 1995-11-20 | 1997-06-06 | Furukawa Electric Co Ltd:The | 光線路保守システム |
JP2000278212A (ja) * | 1999-03-25 | 2000-10-06 | Kdd Corp | 光伝送路障害点探索システム |
KR20010073397A (ko) * | 2000-01-14 | 2001-08-01 | 오길록 | 비동기전달모드-수동형광가입자망의 광분배망 서브시스템 |
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