13 0 Chapter 3 N Net work Media and Topologies 3.8 Identif y components of wiring distribution Com mon computer net works have many more components than fi rst meets the eye, that is, unless you are the involved in the initial installation of the net work! I n that case, you may be involved in purchasing and installing the components that will connect the com- puters throughout your organization's building. You might also be involved in verif ying that all the net work components have been installed properly and tested. I n the following sections, I'll identif y each of these components and the process of verif ying their proper installation. IDF Of ten, a wire frame, called an intermediate distribution frame (I DF), is located in an equipment or telecommunications room. It is connected to the M DF (discussed nex t) and is used to provide greater flexibilit y in regard to the distribution of the communications lines to the building. I n other words, it's just one more place where a net work administra- tor or telephone administrator can change their mind and redirect the signal. It is t ypically a sturdy metal rack that is designed to hold the bulk of cables that are coming from all