JPS615046U - Bidirectional optical transmission equipment - Google Patents
Bidirectional optical transmission equipmentInfo
- Publication number
- JPS615046U JPS615046U JP1984088114U JP8811484U JPS615046U JP S615046 U JPS615046 U JP S615046U JP 1984088114 U JP1984088114 U JP 1984088114U JP 8811484 U JP8811484 U JP 8811484U JP S615046 U JPS615046 U JP S615046U
- Authority
- JP
- Japan
- Prior art keywords
- optical
- signal
- transmission signal
- converts
- electrical transmission
- 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
Links
Landscapes
- Optical Communication System (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図は本考案に係わる双方向光伝送装置の一実施例を
示す系統図であり、第2図、第3図は同装置の他の実施
例を示す系統図である。
10.20・・・光端局中継装置、11.21・・・光
送信盤、12.22・・・光受信盤、13.23・・・
符号変換盤、14.24・・・出力制御系、15.25
・・・重畳制御系、16.26・・・入力端子、17,
27・・・出力端子、18.28・・・解除制御系、3
0〜35・・・光ファイバケーブル、401〜40n,
501〜50n・・・光中継器。FIG. 1 is a system diagram showing one embodiment of a bidirectional optical transmission device according to the present invention, and FIGS. 2 and 3 are system diagrams showing other embodiments of the same device. 10.20... Optical terminal repeater, 11.21... Optical transmitting board, 12.22... Optical receiving board, 13.23...
Code conversion board, 14.24...Output control system, 15.25
...Superimposition control system, 16.26...Input terminal, 17,
27... Output terminal, 18.28... Release control system, 3
0~35...Optical fiber cable, 401~40n,
501-50n...Optical repeater.
Claims (1)
光端局中継装置を双方向に接続する第1及び第2の光フ
ァイバケーブルとで構成される双方向光伝送システムに
おいて、前記第1および第2の光端局中継装置は、それ
ぞれ、電気伝送信号を光伝送信号に変換し送出するとと
もに制御信号により光出力を遮断する光送信盤と、光伝
送信号を電気伝送信号に変換する光受信盤と、前記光フ
ァイバケーブルの断線により電気伝送信号が消失したと
き異常信号を発生し、異常信号が重畳された電気伝送信
号を受信したときこの異常信号を抽出し、送るべき通信
情報を電気伝送信号へ変換するとともに受けた電気伝送
信号を通信情報へ変換する符号変換盤と、前記符号変換
盤で発生した異常信号を電気伝送信号に重畳する重畳制
御系と、前記符号変換盤で抽出した異常信号により前記
光送信盤の光出力を遮断する制御信号を発生する出力制
御系とから構成されていることを特徴とする双方向光伝
送装置。In a bidirectional optical transmission system comprising first and second tip end station repeaters and first and second optical fiber cables that bidirectionally connect the first and second optical end station repeaters. , the first and second optical terminal relay devices each include an optical transmission board that converts an electrical transmission signal into an optical transmission signal and sends it out, and also cuts off the optical output according to a control signal, and an optical transmission panel that converts the optical transmission signal into an electrical transmission signal. An optical receiver panel that converts the optical fiber into an optical receiver, which generates an abnormal signal when the electrical transmission signal disappears due to a break in the optical fiber cable, and when it receives an electrical transmission signal with an abnormal signal superimposed on it, extracts this abnormal signal and sends it. a code conversion board that converts communication information into an electrical transmission signal and converts a received electrical transmission signal into communication information; a superimposition control system that superimposes an abnormal signal generated in the code conversion board onto the electrical transmission signal; and a code conversion system. 1. A bidirectional optical transmission device comprising: an output control system that generates a control signal for cutting off optical output of the optical transmitting board based on an abnormal signal extracted by the board.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1984088114U JPS615046U (en) | 1984-06-15 | 1984-06-15 | Bidirectional optical transmission equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1984088114U JPS615046U (en) | 1984-06-15 | 1984-06-15 | Bidirectional optical transmission equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS615046U true JPS615046U (en) | 1986-01-13 |
Family
ID=30640948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1984088114U Pending JPS615046U (en) | 1984-06-15 | 1984-06-15 | Bidirectional optical transmission equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS615046U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002077056A (en) * | 2000-08-29 | 2002-03-15 | Fujitsu Ltd | Optical level control method |
-
1984
- 1984-06-15 JP JP1984088114U patent/JPS615046U/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002077056A (en) * | 2000-08-29 | 2002-03-15 | Fujitsu Ltd | Optical level control method |
JP4495321B2 (en) * | 2000-08-29 | 2010-07-07 | 富士通株式会社 | Light level control method |
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