ITRM20090114A1 - IMPEDANCE ADAPTER FOR DIGITAL TRANSMISSIVE SYSTEMS WITH SELF-POWERED OPTICAL SIGNAL - Google Patents
IMPEDANCE ADAPTER FOR DIGITAL TRANSMISSIVE SYSTEMS WITH SELF-POWERED OPTICAL SIGNAL Download PDFInfo
- Publication number
- ITRM20090114A1 ITRM20090114A1 IT000114A ITRM20090114A ITRM20090114A1 IT RM20090114 A1 ITRM20090114 A1 IT RM20090114A1 IT 000114 A IT000114 A IT 000114A IT RM20090114 A ITRM20090114 A IT RM20090114A IT RM20090114 A1 ITRM20090114 A1 IT RM20090114A1
- Authority
- IT
- Italy
- Prior art keywords
- impedance adapter
- adapter according
- impedance
- self
- optical signal
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000011664 signaling Effects 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0264—Arrangements for coupling to transmission lines
- H04L25/0278—Arrangements for impedance matching
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Description
DESCRIZIONE DESCRIPTION
L'ADATTATORE DI IMPEDENZA PER SISTEMI TRASMISSIVI DIGITALI CON SEGNALAZIONE OTTICA AUTOALIMENTATA PREVEDE UNA CIRCUITAZIONE ELETTRONICA PER ACCENDERE I LED DI SEGNALAZIONE PRESENZA FLUSSO NUMERICO, QUESTA È ESSENZIALMENTE COSTITUITA DA UN CIRCUITO TRIPLICATO RE DI TENSIONE OVVIAMENTE OPERANTE, DATO IL TIPO DI SEGNALE, IN ALTA FREQUENZA. UNA PICCOLISSIMA QUANTITÀ DI ENERGIA VIENE PRELEVATA, IN ALTA IMPEDENZA DAGLI IMPULSI DEL SEGNALE, TRAMITE UN RESISTORE NON INDUTTIVO E INVIATO A UN CIRCUITO TRIPLI CATORE DI TENSIONE UTILIZZANTE COMPONENTISTICA, DIODI E CONDENSATORI, ADATTI PER OPERARE IN ALTA FREQUENZA. ALL'USCITA DEL TRIPLI CATORE È PRESENTE UNA TENSIONE CONTINUA CHE INVIATA AL LED, TRAMITE UN RESISTORE PER OTTIMIZZARE LA CORRENTE ASSORBITA, NE PROVOCA L'ACCENSIONE. I DIODI UTILIZZATI NEL TRIPLI CATORE SONO DEL TIPO SCHOTTKY A BASSISSIMA CADUTA DI TENSIONE E PER FREQUENZE DI LAVORO ELEVATE IN MANIERA DA AVERE UN ALTO RENDIMENTO DEL TRIPLI CATORE. IL DIODO LED UTILIZZATO È A BASSISSIMA CORRENTE DI INNESCO, DELL'ORDINE DI POCHI MICROAMPERE CONTRIBUENDO QUINDI ANCH'ESSO A MANTENERE ALTO IL RENDIMENTO DEL CIRCUITO. TUTTA LA COMPONENTISTICA È DEL TIPO IN SMD PER CONTENERE AL MINIMO LE COMPONENTI INDUTTIVE DEL CIRCUITO. THE IMPEDANCE ADAPTER FOR DIGITAL TRANSMISSION SYSTEMS WITH SELF-POWERED OPTICAL SIGNALING PROVIDES AN ELECTRONIC CIRCUITATION TO TURN ON THE NUMERICAL FLOW SIGNALING LEDS, THIS IS ESSENTIALLY CONSTITUTED BY A TRIPLE VOLTAGE RETURN CIRCUIT, WHICH IS ESSENTIALLY CONSISTING OF A TRIPLICATE SENSITIVE CIRCUIT, . A VERY SMALL AMOUNT OF ENERGY IS WITHDRAWAL IN HIGH IMPEDANCE FROM THE SIGNAL IMPULSES, THROUGH A NON-INDUCTIVE RESISTOR AND SENT TO A TRIPLE VOLTAGE CATOR CIRCUIT USING COMPONENTS, DIODES AND CAPACITORS, SUITABLE FOR OPERATING AT HIGH FREQUENCY. AT THE OUTPUT OF THE TRIPLE CATOR THERE IS A CONTINUOUS VOLTAGE WHICH SENT TO THE LED, THROUGH A RESISTOR TO OPTIMIZE THE ABSORBED CURRENT, CAUSES IT TO IGNITION. THE DIODES USED IN THE TRIPLE CATOR ARE OF THE SCHOTTKY TYPE WITH VERY LOW VOLTAGE DROP AND FOR WORKING FREQUENCIES HIGH TO HAVE A HIGH EFFICIENCY OF THE TRIPLE CATOR. THE LED DIODE USED IS AT A VERY LOW INITIATION CURRENT, IN THE ORDER OF A FEW MICROAMPS, THUS HELPING TO KEEP THE CIRCUIT PERFORMANCE HIGH. ALL THE COMPONENTS ARE OF THE SMD TYPE TO CONTAIN THE INDUCTIVE COMPONENTS OF THE CIRCUIT AT A MINIMUM.
OVVIAMENTE NELL'ADATTATORE SONO PRESENTI DUE CIRCUITAZIONI DEL TUTTO IDENTICHE, OPERANTI UNA IN TRASMISSIONE E UNA IN RICEZIONE, CHE PILOTANO I DUE LED SEGNALANTI UNO IL FLUSSO NUMERICO IN TRASMISSIONE E L'ALTRO IN RICEZIONE. LA SEGNALAZIONE OTTICA DELL'ADATTATORE È ATTIVA IN UN RANGE DI FREQUENZA CHE VA DA ALCUNE CENTINAIA DI KBIT/S FINO A 34 M BIT/S MA L'UTILIZZO DELL'ADATTATORE PUÒ ESSERE ESTESO FINO A 155 M BIT/S IN QUANTO LA SUA INSERZIONE NON DETERMINA CHE SI CREINO ERRORI NELLA TRASMISSIONE DEL SEGNALE RISPETTANDO COSÌ LA ITU-T RACCOMANDAZIONE G703 (SERIES G: TRANSMISSION SYSTEM AND MEDIA, DIGITAL SYSTEMS AND NETWORKS). OBVIOUSLY, IN THE ADAPTER THERE ARE TWO COMPLETELY IDENTICAL CIRCUITIONS, ONE OPERATING IN TRANSMISSION AND ONE IN RECEPTION, THAT DRIVE THE TWO LEDS, ONE SIGNALING THE NUMERICAL FLOW IN TRANSMISSION AND THE OTHER IN RECEIVING. THE OPTICAL SIGNALING OF THE ADAPTER IS ACTIVE IN A FREQUENCY RANGE THAT GOES FROM A FEW HUNDREDS OF KBIT / S UP TO 34 M BIT / S BUT THE USE OF THE ADAPTER CAN BE EXTENDED UP TO 155 M BIT / S AS ITS INSERTION DOES NOT DETERMINE ERRORS IN SIGNAL TRANSMISSION, THUS COMPLYING WITH ITU-T RECOMMENDATION G703 (SERIES G: TRANSMISSION SYSTEM AND MEDIA, DIGITAL SYSTEMS AND NETWORKS).
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000114A ITRM20090114A1 (en) | 2009-03-17 | 2009-03-17 | IMPEDANCE ADAPTER FOR DIGITAL TRANSMISSIVE SYSTEMS WITH SELF-POWERED OPTICAL SIGNAL |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000114A ITRM20090114A1 (en) | 2009-03-17 | 2009-03-17 | IMPEDANCE ADAPTER FOR DIGITAL TRANSMISSIVE SYSTEMS WITH SELF-POWERED OPTICAL SIGNAL |
Publications (1)
Publication Number | Publication Date |
---|---|
ITRM20090114A1 true ITRM20090114A1 (en) | 2010-09-18 |
Family
ID=41683617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT000114A ITRM20090114A1 (en) | 2009-03-17 | 2009-03-17 | IMPEDANCE ADAPTER FOR DIGITAL TRANSMISSIVE SYSTEMS WITH SELF-POWERED OPTICAL SIGNAL |
Country Status (1)
Country | Link |
---|---|
IT (1) | ITRM20090114A1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4890102A (en) * | 1987-05-26 | 1989-12-26 | Cabletron, Inc. | Visual display for communication network monitoring and troubleshooting |
DE9010954U1 (en) * | 1990-07-24 | 1990-09-27 | Bosch Telecom öffentliche Vermittlungstechnik GmbH, 6236 Eschborn | Monitor device for displaying serially transmitted data |
US5081627A (en) * | 1989-07-05 | 1992-01-14 | Casat Technologies, Inc. | Status and activity monitor for contention type local area networks |
EP0489990A1 (en) * | 1990-12-07 | 1992-06-17 | Hewlett-Packard Company | LAN monitoring method and apparatus |
EP0660566A1 (en) * | 1993-12-22 | 1995-06-28 | ABBPATENT GmbH | Device for the indication of messages transmitted via the lines of the European installation bus (EIB) |
US20020171467A1 (en) * | 2001-05-18 | 2002-11-21 | Worley Eugene Robert | Led driver circuit with a boosted voltage output |
US20050071711A1 (en) * | 2003-09-19 | 2005-03-31 | Shaw Robert E. | Multiple and parallel access network tap for gigabit internet lans |
-
2009
- 2009-03-17 IT IT000114A patent/ITRM20090114A1/en unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4890102A (en) * | 1987-05-26 | 1989-12-26 | Cabletron, Inc. | Visual display for communication network monitoring and troubleshooting |
US5081627A (en) * | 1989-07-05 | 1992-01-14 | Casat Technologies, Inc. | Status and activity monitor for contention type local area networks |
DE9010954U1 (en) * | 1990-07-24 | 1990-09-27 | Bosch Telecom öffentliche Vermittlungstechnik GmbH, 6236 Eschborn | Monitor device for displaying serially transmitted data |
EP0489990A1 (en) * | 1990-12-07 | 1992-06-17 | Hewlett-Packard Company | LAN monitoring method and apparatus |
EP0660566A1 (en) * | 1993-12-22 | 1995-06-28 | ABBPATENT GmbH | Device for the indication of messages transmitted via the lines of the European installation bus (EIB) |
US20020171467A1 (en) * | 2001-05-18 | 2002-11-21 | Worley Eugene Robert | Led driver circuit with a boosted voltage output |
US20050071711A1 (en) * | 2003-09-19 | 2005-03-31 | Shaw Robert E. | Multiple and parallel access network tap for gigabit internet lans |
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