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Design of the Aero Center Network Infrastructure
Kadlec, Vojtěch ; Novotný, Vít (referee) ; Ondrák, Viktor (advisor)
The bachelor's thesis deals with the design of the network infrastructure of the company Aero Invest s.r.o. The design consist of creating complete documentation for the subsequent implementation of a computer network according to the requirements of the investor. The design contains both active and passive elements and the method of security technologies.
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Optical cables in modern data centres
Hejtmánek, Ondřej ; Křepelka, Václav (referee) ; Filka, Miloslav (advisor)
The essence of this study was to evaluate the issue of fiber optic and data cables in modern data centers. To compare and evaluate optimal design parameters were chosen as follows: Performance, reliability, installation time, flexibility, weight and size, requirements maintenance and training and the total price. The introductory chapters describes structure of the data center and network bases and storage technologies used in data centers. Particularly a local area network Ethernet and storage technology, DAS, SAN and SAS. Followed by a metallic and fiber optic cabling. For metallic cabling are used primarily PiMF cables. The fiber optic cabling emphasis was placed on multimode fiber OM3 and OM4. The main point of this study was to compare three types of installation metallic and three types of fiber optic cabling. MRJ-21 solution, pre-terminated system and standard installation of the so-called notch technique for metallic cables. For optical cabling has been chosen MPO solution, pre-terminated system and standard installation by welding fibers. In the end were compared and evaluated various solutions. The main focus was placed on the parameters of performance, reliability and installation time. The optical systems were rated the best solution MPO and preterminated system. Results were similar for the metallic cabling, where most of the parameters of the solution satisfies MRJ-21 followed by pre-terminated system. Standard installation for both types of cables in data centers too has not worked. All types of installations have been tested in practice and measured at different times during install.
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Data centre project - structured cabling
Hejtmánek, Ondřej ; Dostál, Otto (referee) ; Filka, Miloslav (advisor)
This master’s thesis is concerned with analysis of cabling and cabling systems in data center and with their projection as follows. The part of the work is aimed at the measurement parameters of metal cables which are used in data center with noise. The first part is focused on analyzing the structure of the data center and cabling used in it. The structure of the data center is based on the TIA-942 and consists of an entrance room, main distribution area MDA, horizontal distribution area HDA , zone distribution area ZDA and the equipment distribution area EDA. Divided into backbone cabling and horizontal cabling and use standard and pre-terminated cabling. The measurement results of structured metal cabling with noise are discussed in the next part. There were used these types of cables UTP, FTP and S/FTP. The measurement was performed in the electricity substation and in the laboratory of electromagnetic compatibility. The third part of this work deals with the actual design of structured cabling for the data center. In the first design we use the standard installation, the second preterminated cabling. For both types of installation cost statement is processed (CAPEX). Thesis is also completed with DC design drawings and rack drawings.
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Coaxial cables in communication networks
Hotárek, Lukáš ; Křepelka, Václav (referee) ; Filka, Miloslav (advisor)
The semestral thesis is focused on coaxial cables, its development and current utilization. In the prologue of this paper, the history and origin of the cable is described with mentioning important dates and events in its development. Since the coaxial cable is type of metallic cable, part of the paper deals with the theory, parameters and characteristics of metallic cables. The theory of all basic types of metallic cables is described, that implies twisted pair, structured cabling and coaxial cable, to which is dedicated most space. The next chapter presents brief description, basic division and utilization of fiber optic to enable comparison with coaxial cable. It presents main advantages and disadvantages as well as reasoning for prevalence of use of optic fibers. The current use of coaxial cable is presented. Aside from cable television, computer and telephone networks, the coaxial cables are also used as feeder lines for transmitting and receiving aerials and as television aerial lead. Due to great possibility of utilization of coaxial cables exists a broad spectrum of cables with different parameters and properties. Therefore a separate chapter focuses on particular types of cabling, describes its significant parameters and practical utilization. The last part of the paper presents parameters of coaxial cables that can be verified and that bear great importance in praxis. The methods of proper measurement are mentioned. Aforesaid parameters include impedance, cable loss and distance-to-fault. Described are also modern analyzers that are most commonly used for measuring said parameters of coaxial cables and aerials.
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Design of the Aero Center Network Infrastructure
Kadlec, Vojtěch ; Novotný, Vít (referee) ; Ondrák, Viktor (advisor)
The bachelor's thesis deals with the design of the network infrastructure of the company Aero Invest s.r.o. The design consist of creating complete documentation for the subsequent implementation of a computer network according to the requirements of the investor. The design contains both active and passive elements and the method of security technologies.
|
|
|
Coaxial cables in communication networks
Hotárek, Lukáš ; Křepelka, Václav (referee) ; Filka, Miloslav (advisor)
The semestral thesis is focused on coaxial cables, its development and current utilization. In the prologue of this paper, the history and origin of the cable is described with mentioning important dates and events in its development. Since the coaxial cable is type of metallic cable, part of the paper deals with the theory, parameters and characteristics of metallic cables. The theory of all basic types of metallic cables is described, that implies twisted pair, structured cabling and coaxial cable, to which is dedicated most space. The next chapter presents brief description, basic division and utilization of fiber optic to enable comparison with coaxial cable. It presents main advantages and disadvantages as well as reasoning for prevalence of use of optic fibers. The current use of coaxial cable is presented. Aside from cable television, computer and telephone networks, the coaxial cables are also used as feeder lines for transmitting and receiving aerials and as television aerial lead. Due to great possibility of utilization of coaxial cables exists a broad spectrum of cables with different parameters and properties. Therefore a separate chapter focuses on particular types of cabling, describes its significant parameters and practical utilization. The last part of the paper presents parameters of coaxial cables that can be verified and that bear great importance in praxis. The methods of proper measurement are mentioned. Aforesaid parameters include impedance, cable loss and distance-to-fault. Described are also modern analyzers that are most commonly used for measuring said parameters of coaxial cables and aerials.
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|
|
Coaxial cables in communication networks
Hotárek, Lukáš ; Křepelka, Václav (referee) ; Filka, Miloslav (advisor)
The semestral thesis is focused on coaxial cables, its development and current utilization. In the prologue of this paper, the history and origin of the cable is described with mentioning important dates and events in its development. Since the coaxial cable is type of metallic cable, part of the paper deals with the theory, parameters and characteristics of metallic cables. The theory of all basic types of metallic cables is described, that implies twisted pair, structured cabling and coaxial cable, to which is dedicated most space. The next chapter presents brief description, basic division and utilization of fiber optic to enable comparison with coaxial cable. It presents main advantages and disadvantages as well as reasoning for prevalence of use of optic fibers. The current use of coaxial cable is presented. Aside from cable television, computer and telephone networks, the coaxial cables are also used as feeder lines for transmitting and receiving aerials and as television aerial lead. Due to great possibility of utilization of coaxial cables exists a broad spectrum of cables with different parameters and properties. Therefore a separate chapter focuses on particular types of cabling, describes its significant parameters and practical utilization. The last part of the paper presents parameters of coaxial cables that can be verified and that bear great importance in praxis. The methods of proper measurement are mentioned. Aforesaid parameters include impedance, cable loss and distance-to-fault. Described are also modern analyzers that are most commonly used for measuring said parameters of coaxial cables and aerials.
|
|
|
Optical cables in modern data centres
Hejtmánek, Ondřej ; Křepelka, Václav (referee) ; Filka, Miloslav (advisor)
The essence of this study was to evaluate the issue of fiber optic and data cables in modern data centers. To compare and evaluate optimal design parameters were chosen as follows: Performance, reliability, installation time, flexibility, weight and size, requirements maintenance and training and the total price. The introductory chapters describes structure of the data center and network bases and storage technologies used in data centers. Particularly a local area network Ethernet and storage technology, DAS, SAN and SAS. Followed by a metallic and fiber optic cabling. For metallic cabling are used primarily PiMF cables. The fiber optic cabling emphasis was placed on multimode fiber OM3 and OM4. The main point of this study was to compare three types of installation metallic and three types of fiber optic cabling. MRJ-21 solution, pre-terminated system and standard installation of the so-called notch technique for metallic cables. For optical cabling has been chosen MPO solution, pre-terminated system and standard installation by welding fibers. In the end were compared and evaluated various solutions. The main focus was placed on the parameters of performance, reliability and installation time. The optical systems were rated the best solution MPO and preterminated system. Results were similar for the metallic cabling, where most of the parameters of the solution satisfies MRJ-21 followed by pre-terminated system. Standard installation for both types of cables in data centers too has not worked. All types of installations have been tested in practice and measured at different times during install.
|
|
|
Data centre project - structured cabling
Hejtmánek, Ondřej ; Dostál, Otto (referee) ; Filka, Miloslav (advisor)
This master’s thesis is concerned with analysis of cabling and cabling systems in data center and with their projection as follows. The part of the work is aimed at the measurement parameters of metal cables which are used in data center with noise. The first part is focused on analyzing the structure of the data center and cabling used in it. The structure of the data center is based on the TIA-942 and consists of an entrance room, main distribution area MDA, horizontal distribution area HDA , zone distribution area ZDA and the equipment distribution area EDA. Divided into backbone cabling and horizontal cabling and use standard and pre-terminated cabling. The measurement results of structured metal cabling with noise are discussed in the next part. There were used these types of cables UTP, FTP and S/FTP. The measurement was performed in the electricity substation and in the laboratory of electromagnetic compatibility. The third part of this work deals with the actual design of structured cabling for the data center. In the first design we use the standard installation, the second preterminated cabling. For both types of installation cost statement is processed (CAPEX). Thesis is also completed with DC design drawings and rack drawings.
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