Vanderbilt International (UK) Ltd. Unit 9A2Y, Castlegate Business Park Caldicot | South Wales | NP26 5AD +44 (0)2036 300 670 comnet.net @ComNet_Inc ComNet Conclusion IP security & surveillance systems will be deployed in locations based on the operational requirements of the end user. The majority of these deployments will be outside of the typical office or building environment and as a result, standard structured cabling solutions may not always be available or provide the best answer. With their range of Extended Ethernet solutions, ComNet are providing network operation over non-standard copper mediums as a reliable, proven option for end users. The benefits of utilising existing infrastructure in any project can be significant from a financial and time perspective and those alone make it a solution that cannot be over-looked. In the case of no alternative, the ability to send Ethernet signals over very low grade twisted pair, coaxial or extended CAT5 or better could be the catalyst that enable a project to move forward. Having served an engineering apprenticeship with the Ministry of Defence and read for his degree in electronic systems at the Royal Military College of Science, Iain Deuchars worked for a number of years on satellite communications projects for the UK military. Following this he moved to the commercial sector and became involved in optical communications primarily in the security and surveillance markets. Iain has held senior positions in a number of electronic communication companies and is currently General Manager for ComNet, where he is involved in both technical and commercial aspects for the Company. When you add to this a -40 to +75°C operating temperature and Lifetime Warranty, the solutions provided by ComNet offer a very interesting proposition as part of your IP network. _______________ 1 Power levels with respect to the Power Sourcing Equipment. 2 Georg Ohm published his research in 1827 and today his work on the relationships between voltage, current, and resistance in a circuit are what we know as Ohms Law. In any copper conductor there is a resistance, defined as ohms/m that will grow as the cable distance increases. The current in the cable is based on the starting voltage present at the PSE but due to the resistance the voltage at the PD will be less. This results in a power loss at the PD due to the voltage drop.