This document presents the project for the structured cabling system of an office building in Spain. It begins with acknowledgments and an abstract in English. It then outlines the objectives, contents and index of the project report. The report will include designs for access control, video surveillance, Wi-Fi network, the structured cabling system, specifications, budget, and conclusions. Diagrams and specifications for various components will be provided. The goal is an integrated system for voice, data, video and other services with easy administration, low costs, long life and wide bandwidths.