Media Issues 21 Local connector (LC) This is used with fiber-optic cabling. Mechanical transfer registered jack (MTRJ) This is used with fiber-optic cabling. These different types of connectors attach a cable to network cards and other devices in different ways. Some connectors, like RJ-11, RJ-45, and ST connec- tors are plugged into a port, whereas others like BNC and ST connectors have threading that is used to screw the connector into place. MEDIA ISSUES Each of the different types of physical media available has its own benefits and vulnerabilities that can affect network performance and the amount of work required to install, troubleshoot, and repair the cabling. Interference Interference is an issue affecting media that transmit electrical signals such as UTP and coaxial cable. Fiber-optic cabling is not susceptible to interference since it