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Communication protocols emulator
Fabulec, Martin ; Dejdar, Petr (referee) ; Jablončík, Lukáš (advisor)
The content of this work is the analysis of commonly used serial protocols RS-232 and RS-485 and their transmission using the optical fiber. The work deals with the analysis of the actual problematic and the connection design of the optical fiber system, communication through optical fiber and communication interface. The design of the communication protocol emulator and the verification of the functionality of the transmission system are also discussed. The theoretical part deals with optical components such as optical receiver and transmitter, SFP module and the description of the RS-232 and RS-485 interface. The practical part mentions the connection proposal and subsequent data transfer.
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Transmission system for polymer optical fiber
Kubík, Martin ; Tejkal, Vladimír (referee) ; Šporik, Jan (advisor)
Bachelor's thesis deals with the transmission of signals via plastic optical fibers. First part contains basic principle and parameters transmission of light beam via fiber. The most common types of plastic optical fibers are analyzed, theirs characteristic parameters and trends in the development of this type of transmission medium are listed. In the second part is designed and implemented the proper integration of the optical transmitter and receiver to transmit signals via plastic optical fiber. The advantage of the implemented circuit is its modularity, so it is possible to further easily extend the system. Laboratory task is prepared for use system in the laboratory.
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Error correction methods in optical transmission system
Burčo, Matúš ; Ružička, Michal (referee) ; Jablončík, Lukáš (advisor)
The bachelor thesis deals with a design of an optical transmitter system and subsequent detection methods and errors correction that occured during the process. A part of the thesis is making an acquaintance with transmission parameters in optical fiber, such as transmission rate, attenuation, dispersion and bandwith. Hamming’s and Reed-Solomon’s correction codes are described in detail, wich are then used for error correction in the proposed optical transmitter system. A program is designed for Hamming’s code that is able to detect and correct occurred error in transmision. The thesis also includes measurement of attenuation on the optical path using various transmitters, recievers and optical fibers.
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Analysis of information leakage from optical transmission system
Šimon, Václav ; Horváth, Tomáš (referee) ; Münster, Petr (advisor)
This bachelor thesis deals with the structure of an optical transmission system. It focuses mainly on the transmission part of the system. It describes its parts and the functioning of the components used. It also deals with the risks of information leakage at various levels of the system (backbone networks, distribution and access networks, optical fiber). The practical part examines the issue of 3 possible risks. Firstly is measured the effect of unauthorized connection of a splitter to the optical path, then the eavesdropping in dense wavelength division multiplexing networks and the last measurement deals with the eavesdropping of the upstream signal in GPON access networks.
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Communication protocols emulator
Fabulec, Martin ; Dejdar, Petr (referee) ; Jablončík, Lukáš (advisor)
The content of this work is the analysis of commonly used serial protocols RS-232 and RS-485 and their transmission using the optical fiber. The work deals with the analysis of the actual problematic and the connection design of the optical fiber system, communication through optical fiber and communication interface. The design of the communication protocol emulator and the verification of the functionality of the transmission system are also discussed. The theoretical part deals with optical components such as optical receiver and transmitter, SFP module and the description of the RS-232 and RS-485 interface. The practical part mentions the connection proposal and subsequent data transfer.
|
|
|
Error correction methods in optical transmission system
Burčo, Matúš ; Ružička, Michal (referee) ; Jablončík, Lukáš (advisor)
The bachelor thesis deals with a design of an optical transmitter system and subsequent detection methods and errors correction that occured during the process. A part of the thesis is making an acquaintance with transmission parameters in optical fiber, such as transmission rate, attenuation, dispersion and bandwith. Hamming’s and Reed-Solomon’s correction codes are described in detail, wich are then used for error correction in the proposed optical transmitter system. A program is designed for Hamming’s code that is able to detect and correct occurred error in transmision. The thesis also includes measurement of attenuation on the optical path using various transmitters, recievers and optical fibers.
|
|
|
Analysis of information leakage from optical transmission system
Šimon, Václav ; Horváth, Tomáš (referee) ; Münster, Petr (advisor)
This bachelor thesis deals with the structure of an optical transmission system. It focuses mainly on the transmission part of the system. It describes its parts and the functioning of the components used. It also deals with the risks of information leakage at various levels of the system (backbone networks, distribution and access networks, optical fiber). The practical part examines the issue of 3 possible risks. Firstly is measured the effect of unauthorized connection of a splitter to the optical path, then the eavesdropping in dense wavelength division multiplexing networks and the last measurement deals with the eavesdropping of the upstream signal in GPON access networks.
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|
|
Transmission system for polymer optical fiber
Kubík, Martin ; Tejkal, Vladimír (referee) ; Šporik, Jan (advisor)
Bachelor's thesis deals with the transmission of signals via plastic optical fibers. First part contains basic principle and parameters transmission of light beam via fiber. The most common types of plastic optical fibers are analyzed, theirs characteristic parameters and trends in the development of this type of transmission medium are listed. In the second part is designed and implemented the proper integration of the optical transmitter and receiver to transmit signals via plastic optical fiber. The advantage of the implemented circuit is its modularity, so it is possible to further easily extend the system. Laboratory task is prepared for use system in the laboratory.
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