otocols 8.7.5 LMP Extensions End Notes Chapter 9 Free-Space Optics (FSO) 9.1 Technical Aspects of FSO 9.1.1 Network Architecture Contents 9.1.2 Key Network Elements 9.1.3 Atmospheric Impairments and Other Problematic Issues 9.1.4 Major Vendors 9.2 Financial Aspect of FSO 9.2.1 Comparison Between FSO and Other Established Access Technologies 9.2.2 Global FSO Equipment Revenue Forecast 9.3 Deployment of FSO 9.3.1 Implementation of FSO Systems 9.4 Strengths and Weaknesses of FSO 9.5 The Future of FSO 9.5.1 Demand Demography 9.5.2 Economy End Notes References Chapter 10 Practical Design and Economic Parameters 10.1 Market Background 10.2 Technical Design Parameters 10.3 Simplified Modeling for the Number of Orders Needed to Make Revenue Goals 10.4 Key Findings for Net-Income-Generating Carriers 10.4.1 Run 1: Baseline Parameters for a Typical Situation 10.4.2 Run 2: A Breakthrough Technology Where the CPE Cost Is Cut 10.4.3 Run 3: A Breakthrough Technology That Keeps CPE Costs Low While Supporting More Buildings on the Ring 10.4.4 Key Conclusions Appendix A Revenue per Employee Appendix B Calculating Your Sales Staff Number Appendix C Generalized "Rule of 78" Acronyms Index PREFACE Industry observers have called 2001 a watershed year in the telecommu- nications and data communications industry. Five factors have relevance to a discourse on new-generation networks that planners may consider deploying in the near future: (1) The recent passing away of many legacy narrowband service providers such as competitive local exchange carriers (CLECs), digital subscriber line (DSL) local exchange carriers (DLECs), building local exchange carriers (BLECs), radio local exchange carriers (RLECs), Ethernet LECs (ELECs), and Internet service providers (ISPs), (2) the need for cost-effective but financially sound broadband service delivery, (3) the major recent advances in optical technologies, (4) the apparent glut of fiber facilities in the long-haul portion of the network but the absolute dearth of such facilities for broadband-ser