Sau khi hoàn tất khóa học, học viên sẽ có khả năng:Nắm rõ các tiêu chuẩn dành cho hệ thống cáp mạng, hình mẫu và cách áp dụng những hình mẫu này vào việc thiết kế mạngThiết kế và sử dụng hệ thống cáp và patching trong các tòa nhà thương mạiThiết kế hệ thống cáp và patching dùng cho trung tâm dữ liệuThiết kế các khung xương chính cho cả cáp trong nhà và ngoài trờiLựa chọn chính sách ngăn chặnlộ trình cáp phù hợp để cài đặt mạngÁp dụng các bài thực hành cài đặt phù hợp nhằm tránh các lỗi thường gặpPhát hiện các phương pháp và yếu tố kiểm thử chính xác dành cho hệ thống mạng và copper
\ ® ~> 99 gaff is This page intentionally left blank ‘is “ie Foreword amgx QQQ eféx Lojfitqg back over the past 20 years or so, it is interesting to see how much Information and Communication Technohgy (ICT) has changed Technologies which were anticipated to vanish, such as the mainframe, have made a C&;lElJ8Cl( and new technologies such as blade-servers and others have been added to the product portfolio of many vendors ICT is constantly changing at an increasingly faster pace, whether it is at the core level, such as CPU specifications, or at the overall infrastructure architecture layer, such as Storage Area Networks etc it is therefore somewhat surprising that data centres and supporting technologies for mission critical site facilities have not really improved or altered at a similar rate For example, the UPS technology known as ‘true online double conversion’ has been ironed out, with only minor enhancements, but has not undergone dramatic improvements as have computer-based systems over the past few years With ICT becoming more and more critical for most businesses, it is quite surprising that many companies and their business leaders seem to focus their attention squarely on the ‘feeds and speeds’ of new computers, storage and network technologies, but ‘forget’ the impact they have on the data centre Most data centres are built and left the way they are for many years Hundreds of thousands of dollars are spent on wheeling in new equipment and rolling out new business applications but virtually no dollars are spent on reviewing and enhancing data centres to support these technology changes —yet these very business leaders are increasingly aware of the significance and reliance their businesses have on the data centre! EPl' performs numerous data centre audits and certifications world-wide and has discovered that most “IT professionals” inherit the daunting task of setting up and operating the data centre whilst they have never been formally trained in managing data centre facilities Similarly, it occurs that ‘Facilities Specialists’ are tasked to keep the data centre running whilst they have no idea about what the exact requirements are for the new technologies which the ICT department intends to deploy in the data centre This potentially leads to confusion and disastrous events which could have been avoided by training both ICT and Facilities professionals with the basic skills on mission critical data centre facilities The CNCDP course is aimed at enhancing the data centre network cabling design and operations of to make these more efficient and effective in achieving high-availability with a reduced risk for down time The CNCDP course is unique and we hope that with the knowledge gained from this course you will increase your competencies and minimize risks of downtime for your organizations Yours Sincerely, Edward van Leent Chairman & CEO, EPI Group of Companies 9‘ Q“ Q13‘ 69$ ~n@‘r@ %’a>> 99 gatg is This page intentionally left blank ‘ts Wig Table of contents ~~‘“@‘ 1‘ Module — Introduction to Structured Cabling System {SCS) @\>\“‘w9 g Objectives 8‘ 1.2 bf)» y» ef history ED\$\§Q9 1.3 Bfief 1.4 The ‘first’ personal computers 1.5 The convergence of data cabling and connector 1.5 Basic transmission 1.7 Copper cabling 1.8 Fibre cabling 1.9 Fibre cabling 1.10 Single-mode versus multimode fibre 1.11 Step and graded index of multimode fibre 1.12 The development of cabling system standards 1.13 The development of structured cabling system 1.14 Why you should care about standards? 1.15 The role of standards 1.16 Most important cabling standard — ANSIITIA-568 standard 1.17 Scope of the ANSI/TIA-568 sta ndard 1.18 Functional elements of a generic cabling system 1.19 Functional elements of a generic cabling system 1.20 Functional elements of a generic cabling system 1.21 Copper sp¥ice 1.22 Fibre spiitter 1.23 Functional elements of a generic cabling system 1.24 Functional elements of a generic cabling system 1.25 Latest 568 series cabling standards 1.26 International and European cabling standards 1.27 Cabling related standards 70 egg 1.28 Cabling related standards 71 ‘Q29 Commercial and data centre wiring — differences 72 ‘Q2 i?‘3§\‘ Qt 1.30% Data centre cabling requirements 73 A/\ 1.31 %Q§ Point to Point Point to Point refers to when there is a direct connection between two active communications devices (switches to servers, servers to storage, server to server, etc.) Punch Down ls when the copper wires are “punched down” into the 110 block or patch panel A special punch down tool is used to push the wire down firmly and properly Time consuming punch downs can be avoided with the use of preterminated copper trunking Return Loss Return Loss is a measure of power reflected from imperfections in an electrical or optical communications link Return loss is usually expressed in decibels The return loss value describes the reduction in the amplitude of the reflected energy, as compared to the forward energy It will always be a loss, and therefore a negative dB However, one can write -3 dB as simply dB of loss, dropping the negative sign and adding loss Riser Cable Riser Cable which is to be run between floors in non-plenum areas is rated as riser cable The fire requirements on riser cable are not as strict Thus, plenum cable can always replace riser cable, but riser cable cannot replace plenum cable in plenum spaces SAN SAN: Storage Area Network (SAN) is a high-speed network of shared storage devices A SAN permits storage devices attached to the SAN to be used by servers attached to the SAN 328 s‘is _g\ Sheath 5‘ ss°“‘wl 5' ath — A cable is one or more wires or optical fibres bound together, typically in a common pro gctive jacket or sheath '1» sbl Single-rfigde Fibre '$ s Single-mode Fibre optical Fibre (SMF) is an optical fibre designed to carry only a single ray of light (mode) Splice Splice -Fusion splicing is the act ofjoining two optical fibres end-to-end using heat The goal is to fuse the two fibres together in such a way that light passing through the fibres is not scattered or reflected back by the splice, and so that the splice and the region surrounding it are almost as strong as the virgin fibre itself The source of heat is usually an electric arc but can also be a tungsten filament through which current is passed Strength Member Strength Member — For indoor applications, the jacketed fibre is generally enclosed, with a bundle of flexible fibrous polymer strength members like Aramid (e.g Twaron or Kevlar), in a lightweight plastic cover to form a simple cable Each end of the cable may be terminated with a specialized optical fibre connector to allow it to be easily connected and disconnected from transmitting and receiving equipment Structured Cabling Structured Cabling is defined as building or campus telecommunications cabling infrastructure that consists of a number of standardised smaller elements (structured) A properly designed and installed structured cabling system provides a cabling infrastructure that delivers predictable performance as well as has the flexibility to accommodate moves, adds and changes; maximizes system availability, provides redundancy; and future proofs the usability of the cabling system Tensile Strength Tensile Strength - measures the engineering stress applied (to something such as rope, wire, or a structural beam) at the point when it fails It is an intensive property of the material, which not only depends on the type of material but also the preparation of the specimen and the temperature ofthe test In other words, the amount of force the material can withstand when being stretched (Picture tug-of-war, the amount of force required to break the rope would be its tensile strength) 329 IA] E IA-558-B mpg‘ $9“ _| his Tll%@lA-568-B attempts to define standards that will enable the design and implementation of structiiged cabling systems for commercial buildings, and between buildings in campus environments The bul@%of the standards define cabling types, distances, connectors, cable system architectures, cable terrflgnation standards and performance characteristics, cable installation requirements and methods oftesting installed cable Tight Buffer In Tight Buffer construction the fibre may be embedded in a heavy polymer jacket These fibre units are commonly bundled with additional steel strength members, with a helical twist to allow for stretching TIA-942 TIA-942 is the structured cabling standard developed by the Telecommunications Industry Association (TIA) to define guidelines for designing, planning and building data centres, particularly with regard to the cabling systems and network design The standard deals with both copper and fibre cabling infrastructure; site space and layout; and environmental considerations, including power and cooling The standard specifies the usage of data centre pathways and spaces The TIA 942 standard defines a structured cabling system where everything leads back to the MDA, not point to point The standard specifies the usage of data centre pathways and spaces A basic data centre topology will consist of the Entrance Room, MDA, HDA, ZDA ZDA (Zone Distribution Area) The ZDA acts as a consolidation point for high-fibre-count cabling from the main distribution area (MDA) or horizontal distribution area (HDA) to regional areas or zones within the data centre Incorporating this architecture into one’s data centre cabling design allows for a one-time installation of the backbone cabling and provides flexibility to accommodate frequent reconfigurations at the zone required for moves, adds and changes 330 ‘s is6‘:\ Exam esp is Eisgm logistics (baa? Certificaxitjon exam papers can be taken in paper-based format at the end of the last day of the course, or online via an aulfiprised training partner, depending on the country in which the course is delivered The exam is a hour long, $340 questions, multiple choice and closed book exam The candidate needs to have 27 out of 40 questions correct in order to pass the exam Marking takes place online for web-based exams or in the centralized EXIN marking office for paper-based exams Exam structure Candidates will receive the EXIN exam registration form which will contain their name, the EXIN login name and password The password can be changed by logging on to the EXIN portal (Note: in some cases the partner has pre-registered under the partner email first) For paper-based exams the candidate needs to verify their name on the name list to ensure that the name on the certificate will be correct For computer-based exams the candidate needs to select how to have the name printed on the certificate During the exam students are no longer allowed to consult their manual, notes or any other information source such as the Internet Talking during the exam is also not allowed Students are allowed to use blank paper for making notes and may use a dictionary in paper or electronic format (such as smart phone, tablet and/or web browser) Usage of calculator is allowed where applicable Any violation of the exam policies and procedure may result in the invigilator expelling you from the exam Once you have finalized the exam you will need to verify if all information is complete before handing over all paperwork (‘exam questions paper’ and ‘exam answer form’) back to the invigilator The personal EXIN registration form should be kept by the student as it contains the information to login to the EXIN portal In case of a computer-based exam only the personal EXIN registration form should be kept by the student, if the form was provided to you by the training provider, as it contains the information to login to the EXIN portal Once the exam is finalized verify that you have taken all your personal belongings and leave the classroom If you wish to wait for a colleague/friend please so in the pantry/lobby/waiting area of the training facility 331 és “$6, Exam results %m@ T i result for paper-based exams take approximately 3-5 working days Candidates can login to the EXIN portal to c ck their result online The result for a computer-based exam is immediately; once the exam is finalized the result’@§ll appear on screen wywfi )~ CertificatZ%\re delivered in online format Printing of certificates is a (chargeable) option If the candidate has opted for a paper-based certificate then this will take approximately - weeks following the examination Exam retake Should the candidate fail the exam he/she can re-take the exam The re-take exam must be taken within less than E months from the first exam attempt Where applicable, candidates can also use the remote proctoring-based exam called ‘EXIN Exam Anywhere’ This option allows you to take the exam at any convenient location [your own office, at home etc.) For more information, including the terms and conditions please visit: https:[/www.exin.com/exin-a nywhere For exam pricing and registration, please contact any EPI Accredited Training Provider If an exam voucher applies, once the voucher is redeemed/registered it has a validity of 21 days only To avoid expiry the candidate must take the exam within 21 days 332 6*»“ta, Exam tips 07*‘ KQ