Intelligent Tech Channels Issue 15 | Page 31

INTELLIGENT CABLING Fibre optic technology is immune to electromagnetic interference and has practically no length limitations. In environments where major rebuilding or refurbishment activities are planned, higher rollout speeds can bring significant savings. Fibre to the Office can also be used in projects with specific requirements. For example, where space is limited or where structural changes cannot be made, such as renovations of historical buildings. There is no need for technical rooms on each floor, saving building space. Benefits Fibre to the Office uses future-proof fibre-optic cables with high bandwidth for riser cabling and horizontal wiring. This means that several generations of active equipment can be supported. Furthermore, network expansions are easy to accommodate. With Fibre to the Office, it is easy to realise network topologies with built-in redundancy – which, in turn, means higher network uptime. Fibre transmission can halve energy requirements in comparison with equivalent copper systems. Furthermore, Fibre to the Office infrastructure can be expanded more easily and with fewer additional resources. Fibre to the Office also supports Power over Ethernet in a highly efficient manner. The lower and more scalable number of ports on a FTTO switch up to 5, make it possible to provide all ports with Power over Ethernet. Fibre to the Office can be installed much faster and easier than a traditional network with floor distributed switches and cabling. The fact that installation times for large portions of the network can be significantly reduced mean, in turn, that initial installation time can be 60% lower than is the case with established network designs. Installation time of the cable infrastructure can be minimised since no on-site terminations are required. The savings on installation times are mainly the result of less cables and, therefore, less pulling time. Installation and integration of distribution rooms is completely eliminated. The zone distribution boxes also increase the flexibility for future adds and changes. Choosing a Fibre to the Office network design over a traditional network design results in lowering of expenses. The costs of passive fibre infrastructures are lower than those of copper and savings are largely achieved by low building related costs and no floor distribution rooms. Cost of ownership Fibre to the Office can significantly change the entire total cost of ownership structure. Introduction of highly efficient, low maintenance FTTO switches with extensive remote management capabilities on board and a lower number of equipment rooms, means less power consumption and less staff hours. The longer lifespan and reduced installation times contribute to significantly lower operational costs. Lower requirements for service, repair and network management lead to further savings. Downtime is also reduced: not only because less maintenance is generally required, but also because FTTO switches offer high protection levels against hacking attacks. As less equipment rooms for sub- distribution and related monitoring are needed, capital expenditure is reduced. Savings may be realised on cabling, active network components and other costs both in the purchasing and operation phases. Further contributors to improved capital expenditure include lower energy and maintenance costs, less patches and significantly improved flexibility in the area of moves adds and changes. The future-proof fibre ring, low- maintenance smaller switches, minimal cooling requirements and fewer network ports and floor distributors can soon add up to savings of 30% or more. Looking at a sample application with 1,000 user ports, we see that choosing a Fibre to the Office network design over a traditional network design results in a lowering of expenses as high as 36%. These savings are achieved in several areas. First of all, the costs of passive fibre infrastructures are lower than those of copper. The cost savings are largely achieved by the low building related costs and no floor distribution rooms. Excerpted from Nexans’ Fibre to the Office.  31