Publisher Summary This chapter provides an overview of general guidance about the component choice thus allows determining the final choice based upon a rational approach. The optical fiber geometry must be chosen to meet the initial and future requirements of the transmitted services. The various cable configurations, such as the termination enclosures, cables, connectors, and jointing techniques are considered responsible for the optical performance of the installed cabling. The choice of components essentially considers a number of installation and operational issues. The components chosen for a particular cabling task must first be capable of surviving the process of installation which includes the combination of physical and environmental conditions for that specific installation. Once installed the components is then able to provide the desired level of optical performance over the predicted lifetime of the cabling while enduring the assault of relevant mechanical and climatic conditions. Furthermore, it is observed that the termination enclosures, despite not being responsible for the initial performance of the cabling, impact the operational aspects including reliability and reparability, if not chosen correctly. The chapter also explains the fiber optic cable and cable assemblies.