Microwaves are a short-wavelength radio wave. Microwave transmission links have a wide variety of applications, from consumer Wi-Fi networks to television broadcasts.
Optical (Fiber Optic)
Fiber optic transmission uses bundles of thin, flexible strands of extruded glass to transmit information in the form of pulses of light. Fiber optics provide the high-capacity transmission needed for the networks of the future.
Twisted Pair Ethernet
Twisted pair wire uses two insulated wires twisted together to decrease interference. It is commonly used for CAT 5/6 (Ethernet) cables, as well as for telephony.