JPH03123248U - - Google Patents

Info

Publication number
JPH03123248U
JPH03123248U JP3316390U JP3316390U JPH03123248U JP H03123248 U JPH03123248 U JP H03123248U JP 3316390 U JP3316390 U JP 3316390U JP 3316390 U JP3316390 U JP 3316390U JP H03123248 U JPH03123248 U JP H03123248U
Authority
JP
Japan
Prior art keywords
output
receives
signal
module
input
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP3316390U
Other languages
English (en)
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 filed Critical
Priority to JP3316390U priority Critical patent/JPH03123248U/ja
Publication of JPH03123248U publication Critical patent/JPH03123248U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Optical Devices Or Fibers (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Description

【図面の簡単な説明】
第1図はこの考案による光フアイバ線路の異常
検出回路の構成図、第2図は信号処理部5の出力
電圧説明図、第3図はOTDRの構成図である。 1……信号発生回路、2……LDモジユール、
3……受光部、4……光フアイバ線路、5……信
号処理部、6……アラーム出力部。

Claims (1)

  1. 【実用新案登録請求の範囲】 変調信号を発生する信号発生回路1と、 信号発生回路1の出力信号を入力とするLDモ
    ジユール2と、 LDモジユール2の近傍に配置され、LDモジ
    ユール2の発光出力を受光する受光器3と、 受光器3の出力を入力とする信号処理部5と、 信号処理部5の出力を入力とするアラーム出力
    部6とを備え、 LDモジユール2の発光出力を光フアイバ線路
    4に送出し、光フアイバ線路4の反射光により信
    号処理部5の出力が増えるとアラーム出力部6が
    アラームを出すことを特徴とする光フアイバ線路
    の異常検出回路。
JP3316390U 1990-03-29 1990-03-29 Pending JPH03123248U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3316390U JPH03123248U (ja) 1990-03-29 1990-03-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3316390U JPH03123248U (ja) 1990-03-29 1990-03-29

Publications (1)

Publication Number Publication Date
JPH03123248U true JPH03123248U (ja) 1991-12-16

Family

ID=31536595

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3316390U Pending JPH03123248U (ja) 1990-03-29 1990-03-29

Country Status (1)

Country Link
JP (1) JPH03123248U (ja)

Similar Documents

Publication Publication Date Title
EP0805569A4 (en) FIBER OPTICAL TRANSMISSION SYSTEM
CA2140082A1 (en) Laser Control Arrangement for Tuning a Laser
DE3855733D1 (de) Lichtquellen
NO922208D0 (no) Polarisasjons-uavhengig forsterker-innretning
CA2022690A1 (en) Optical repeated transmission method and system
JPH03123248U (ja)
MX9304001A (es) Enlace de señales esencial para ferrocarril.
JPS63117118U (ja)
CA2049163A1 (en) Signal processing system of optical fiber gyro
JPS58129145U (ja) 光電式分離型煙感知装置
JPS63108288U (ja)
JPH03114081U (ja)
JPH03120298U (ja)
JPH02136945U (ja)
JPH0328430U (ja)
JPS6393527U (ja)
JPH03105050U (ja)
JPH02123688U (ja)
FR2618961B1 (fr) Dispositif amplificateur de signaux de faible puissance, notamment issus d'une fibre optique plastique
JPS63129347U (ja)
JPH0420738U (ja)
KR970063081A (ko) 광섬유를 이용한 광 픽업장치
JPS6327828U (ja)
JPS627019U (ja)
JPS6037963U (ja) リモ−トコントロ−ル装置