What is the medium for wireless communication?
Wireless signals are electromagnetic waves that can travel through the vacuum of outer space and through media, such as the air in our atmosphere. Therefore, no cable medium is necessary for wireless signals. 10. What are TIA/EIA standards? The TIA/EIA standards specify the minimum requirements for multiproduct and multivendor environments. They allow for the planning and the installation of LAN systems without dictating the use of specific equipment giving LAN designers the freedom to create options for improvement and expansion. 47 – 239 Engineering Journal and Workbook, Vol. I, 2nd Ed. . Chapter 5 Copyright 2002 Cisco Systems, Inc. 11. What are patch panels? Patch panels are convenient groupings of RJ-45 jacks. They come in 12, 24, and 48 ports, and typically are rack mounted. The front sides are RJ-45 jacks; the back sides are punch-down blocks that provide connectivity or conducting paths. They are classified as Layer 1 components. 12. How many conductors does an RJ-45 jack have?
