♦♦Coaxial Cable♦♦

♦♦Coaxial Cable♦♦

At one time, coaxial cable was the most widely used cable type in the networking business.
Specifications for coaxial are now included in ANSI/TIA-568-C.4. This Standard consolidates information from the Residential (RG6 & RG59) and Data Center (Type 734 & 735) Standards.
It is still widely used for closed-circuit TV and other video distribution and extensively in broadband and CATV applications. However, it is falling by the wayside in the data networking arena.
It provides a tremendous amount of bandwidth and is not as susceptible to outside interference as is UTP.
Overall installation costs might also be lower than for other cable types because the connectors take less time to apply.
Although we commonly use coaxial cable to connect our televisions to our set-top boxes, we will probably soon see fiber-optic or twisted-pair interfaces to television set top boxes.
Coaxial cable comes in many different flavors, but the basic design is the same for all types.
Typical coaxial cable at the center is a solid (or sometimes stranded) copper
core. Some type of low dielectric insulation material, like fluorinated ethylene-propylene (FEP), polyethylene (PE), or polypropylene (PP), is used to surround the core. Either a sleeve or a braided-wire mesh shields the insulation, and a jacket covers the entire cable.
The shielding protects the data transmitted through the core from outside
electrical noise and keeps the data from generating significant amounts of interference.
♦The below are common coaxial-cable types :
♦RG-58 /U : A 50 ohm coaxial cable with a solid core. Commonly called thinnet and used with 10Base-2 Ethernet and some cable TV applications.
♦RG-58 A/U : A 50 ohm coaxial cable with a stranded core. Also known as thinnet. Used by 10Base-2 Ethernet and some cable TV applications.
♦RG-58 C/U : A military-specification version of RG-58 A/U.
♦RG-59U : A 75 ohm coaxial cable. Used with Wang systems and some cable TV applications.
♦RG-6U : A 75 ohm coaxial cable. The current minimum grade to install in residences because it will handle the full frequency range of satellite service, plus high-definition TV and cable-modem service.
♦RG-6 Quad Shield : Same as RG-6U, but with additional shielding for enhanced noise immunity.

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Source: LinkedIn

Credits: Mr. Ahmed Fawzy Shaaban, CCNA, RCDD®’s Post