For fast and problem-free work of network systems, cabling infrastructure must be installed well. In network systems, there is no other long term use interface as cabling infrastructure. Although the cabling infrastructure, which is so important, constitutes 2% of the total network investments of the institutions, 80% of the network problems we encounter are the cabling systems that are incorrectly designed and made without complying with the engineering standards. The main reason for the preparation of structured cabling systems is to provide that the network system grows without any problems. For this reason, a correct design and project should be done while creating the cabling infrastructure, quality workmanship and materials should be used, testing, labeling and documentation should be made in accordance with the standards and used for years.