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The coaxial portion of the plant will begin at the node itself, where signals will be distributed over <br />a short coax network, consisting of network amplifiers. The amplifiers are designed to accommodate <br />return transmissior ability, surge protection, and remote monitoring capability. Typically, <br />amplifier cascades •. ' exceed four (4) to six (6) amplifiers. <br />The Upgrade Process <br />The first step will be to install die fiber optic networic alongside the existing coaxial system. In areas <br />where the cables are already carried on utility poles, the new fiber will be attached to the existing <br />cables. In areas where existing cables are underground, additional construction will be required to <br />install the new fiber optic cables. Any new coaxial cable required by the network design, in the path <br />of the fiber optic cable, will be installed at the same time. <br />When testing of the optical network is complete, then the second phase, upgrading of the coaxial <br />plant in each community, can begin. <br />When the coaxieJ plant is upgraded, each existing amplifier and distribution device is removed and <br />replaced with a new 750 MHz device. The new equipment is activated and any customers served <br />from that equipment are switched to the new equipment. This process begins at the node, branching <br />out through each leg of the coaxial plant. It is this portion of the upgrade that causes several brief <br />interruptions in service. As the upgrade crews move further out into the coaxial system, fewer and <br />fewer customers experience interruptions in service. When the upgrade of a node is finally <br />complete, all customers served from that node are now receiving service from the new network. <br />After the primary upgrade of each node is complete Triax will perform bandwidth testing and system <br />sweeps to determine whether coaxial cable and drops must be replaced in order to pass the full, <br />upgraded signal spectrum in accordance with, applicable specifications and teclinical standards. <br />Triax will replace any coaxial plant which fails. Installation upgrade crews will sweep through the <br />area inspecting each of the service lines that connect customers ’ homes to the distribution system. <br />Connections are checked, updated splitting equipment is installed, if necessary, and in some cases, <br />the entire line is replaced. At this point the upgrade of that node is complete, and work moves on <br />to the next node area <br />U:\eabU\LMCC4xhibit-A> J wpd <br />■ f. f .‘M <4v .