ble with a diameter of 0.25”. (www.datapro.com). Using a coaxial cable provides a much larger analog bandwidth and digital transmission speed. Also the attenuation per mile is much grater than twisted-pair circuits. Along with the added features versus the twisted pair, the coaxial cabling does cost significantly more.Fiber optic media can be considered to be the best media available for LANs. Fiber optic is also the primary transmission in FDDI (Fiber Distributed Data Interface: The Irwin Handbook of Telecommunications, page 658). This amazing type of media transmits data by the use of light impulses. The pulses are traveled through the optical casing made up of either glass or plastic fiber. The most attractive feature of this particular media is that it is capable of unlimited transmission speeds. Along with the mind-boggling bandwidth, fiber optic media is virtually immune to all electrical and electromagnetic interferences, meaning it will carry the data to its destination without losing a single bit of data along the way. The two types of fiber optic media that are commonly used are the single mode and the multimode fiber. As the single mode fiber requires a laser as the light source to transmit data over long distances, the multimode fiber uses LEDs (light emitting diodes) as the light source. Few discouraging aspects of the fiber optic media are the high cost of equipment and extremely difficult installation process. For example: Attaching a connector requires the polishing of each fiber end and must be precisely aligned with the media. Because of such complicated method, the fiber optic media is used readily only for backbone LANs. Recently, new developments have risen, enabling easier method of installation for this media. However the widespread implementation of this media is still sluggish.Wireless media for LANs is the newest technological advancement in the area of data transmission. With mobility bei...
