This involves determining the placement of cables, equipment cabinets, splice points, and other components. Within this step, operators consider factors such as the distance between nodes, the required cables, redundancy and resilience measures, and scalability for future. Fiber-to-the-home (FTTH) fiber optic cabling is generally divided into the trunk part, distribution part, the introduction part, and access part from the base station to the user, as shown in Figure 1. In general, the fiber cable link system will be more secure if the fewer fiber cable segments. This document is intended to serve as a guide for architecting and deploying fiber optic networks in a customer environment. This installation planning guide describes some basic fundamentals of fiber optic technology, considerations for deployment, and basic testing and troubleshooting procedures. Analog optics followed by analog am-plifiers produces an overall signal-to-noise which limits the order of modulation that may be used. That, cou-pled with bandwidth limitations, can restrict the maxi-mum speeds that the network is capable of achieving. Operators are faced with many choices once. by www.