Coaxial cable and fiber optical cable biggest difference is that the transmission speed, fiber optic cable a lot faster than the coaxial cable, fiber optic cable is of course one of the fastest transmission speed media.
Coaxial cable consists of a hollow metal tube (outer conductor) and a hard copper wire (inner conductor) components. Conductor located within the center of the metal tube, between the inner and outer conductors insulated with polyethylene plastic gasket. Coaxial cable used in LAN There 75Ω, 50Ω and 93Ω three. RG59, RG6 type 75Ω cable is community antenna television system (CATV) cable standard used, it is often used in the transmission frequency division multiplexed analog signal generated by FDM manner, frequency up to 300 ~ 400MHz, known as broadband transmission, it can also be used to transfer Digital signal. 50 Ohm coaxial cable Culan (RG-8 or RG-213 type) and thin cable (RG-58 type) two. Thick anti-jamming performance, transmission distance, low price thin cable, short distance transmission, the transmission rate is generally 10Mbps, for Ethernet. RG-62 cable is a type 93Ω coaxial cable network using Arcnet, generally apply only to baseband transmission, the transmission rate is 2 ~ 20M bps.
Fiber optic cable is short, it is an optical signal transmission medium, which consists of a core, cladding and external layer of reinforcing the strength of the protective layer composition. It is the use of a silica core doped with germanium, phosphorus and other materials, cylindrical shape. Outer cladding is made of pure silica, it is refracted into the optical signal in the core. Singlemode multimode fiber division and, only a single-mode optical path, a number of multi-mode optical path, single-mode fiber capacity, more expensive, and even the current single-mode fiber core cladding size of about 8.3μm / 125μm , commonly used for the core multimode 62.5μm / 125μm. Fiber can only be one-way transmission, for two-way communication should be used in pairs. Domestic cable service speed has reached 100Mbps, and service providers that will represent the final figure to 1Gbps to 10Gbps.