DK139289D0 - Overvaagning i glasfiber-dupleks-overfoeringssystem - Google Patents
Overvaagning i glasfiber-dupleks-overfoeringssystemInfo
- Publication number
- DK139289D0 DK139289D0 DK139289A DK139289A DK139289D0 DK 139289 D0 DK139289 D0 DK 139289D0 DK 139289 A DK139289 A DK 139289A DK 139289 A DK139289 A DK 139289A DK 139289 D0 DK139289 D0 DK 139289D0
- Authority
- DK
- Denmark
- Prior art keywords
- monitoring
- receiving element
- transmission system
- glass fiber
- signal
- Prior art date
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2210/00—Indexing scheme relating to optical transmission systems
- H04B2210/07—Monitoring an optical transmission system using a supervisory signal
- H04B2210/074—Monitoring an optical transmission system using a supervisory signal using a superposed, over-modulated signal
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
- Glass Compositions (AREA)
- Spectrometry And Color Measurement (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Alarm Systems (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3809601 | 1988-03-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
DK139289D0 true DK139289D0 (da) | 1989-03-21 |
DK139289A DK139289A (da) | 1989-09-23 |
Family
ID=6350370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK139289A DK139289A (da) | 1988-03-22 | 1989-03-21 | Overvaagning i glasfiber-dupleks-overfoeringssystem |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0334192B1 (da) |
AT (1) | ATE80254T1 (da) |
AU (1) | AU612247B2 (da) |
DE (1) | DE58902171D1 (da) |
DK (1) | DK139289A (da) |
NO (1) | NO891217L (da) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19540046A1 (de) * | 1995-10-27 | 1997-04-30 | Asea Brown Boveri | Lichtwellenleiter-Übertragungssystem |
US6498663B1 (en) | 1999-09-24 | 2002-12-24 | Scientific-Atlanta, Inc. | Methods and systems for detecting optical link performance of an optical link in a hybrid fiber coaxial path |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU5361779A (en) * | 1978-12-07 | 1981-06-11 | Amalgamated Wireless (Australasia) Limited | Testing transmission systems |
DE3472743D1 (en) * | 1984-05-08 | 1988-08-18 | Siemens Ag | Error code insertion for alphabet code converters |
JPS62203435A (ja) * | 1986-03-03 | 1987-09-08 | Seiko Instr & Electronics Ltd | 単一伝送路双方向光通信装置 |
-
1989
- 1989-03-15 DE DE8989104629T patent/DE58902171D1/de not_active Expired - Fee Related
- 1989-03-15 EP EP89104629A patent/EP0334192B1/de not_active Expired - Lifetime
- 1989-03-15 AT AT89104629T patent/ATE80254T1/de not_active IP Right Cessation
- 1989-03-20 NO NO89891217A patent/NO891217L/no unknown
- 1989-03-21 AU AU31570/89A patent/AU612247B2/en not_active Ceased
- 1989-03-21 DK DK139289A patent/DK139289A/da unknown
Also Published As
Publication number | Publication date |
---|---|
EP0334192A1 (de) | 1989-09-27 |
ATE80254T1 (de) | 1992-09-15 |
NO891217L (no) | 1989-09-25 |
AU612247B2 (en) | 1991-07-04 |
DK139289A (da) | 1989-09-23 |
NO891217D0 (no) | 1989-03-20 |
EP0334192B1 (de) | 1992-09-02 |
AU3157089A (en) | 1989-09-28 |
DE58902171D1 (de) | 1992-10-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1276236C (en) | Fault direction in an optical communications system | |
NO146222C (no) | Fremgangsmaate til overvaaking av informasjonsoverfoeringssystemer med lysboelgeledere | |
JPS62203435A (ja) | 単一伝送路双方向光通信装置 | |
EP0361368A3 (en) | Light signal transmission system | |
US4333178A (en) | Optical fiber repeater | |
ES8507753A1 (es) | Procedimiento y aparato de telecontrol para transmision de datos en lineas fisicas | |
US5130836A (en) | Optical transceiver | |
DK139289D0 (da) | Overvaagning i glasfiber-dupleks-overfoeringssystem | |
EP0905924A3 (en) | Spatial transmission optical transceiver | |
DE69325950D1 (de) | Digitales Übertragungssystem | |
DE59307745D1 (de) | Sende-/Empfangsschaltung in einem passiven optischen Telekommunikationssystem | |
GB2253533B (en) | Optical transmission monitoring | |
GB2131248A (en) | Test equipment for testing an optical fibre transmission line | |
JPH02113736A (ja) | 双方向光伝送装置の光断検出装置 | |
JPH01238330A (ja) | 光伝送装置 | |
JPH0124455B2 (da) | ||
JPS57141150A (en) | Parallel optical transmission system | |
GB2087679A (en) | Optical transmission loop systems | |
JPH025641A (ja) | 同一波長双方向伝送方式 | |
JPS61170153A (ja) | 単線双方向光通信装置 | |
JPS57141149A (en) | Parallel optical transmiision system | |
JPS626135A (ja) | 光伝送ラインの断線検出方法 | |
JPH01295537A (ja) | 光信号断検出方式 | |
GB2179518A (en) | Optical fibre transmission systems | |
GB2069261A (en) | Fibre optic signalling |