THE BEECHMONT CREST NETWORKING GUIDE:
ONLINE GUIDE TO NETWORKING / NETWORK + EXAM OBJECTIVES
Part II: Network Media and Cabling
COAXIAL CABLE
Coaxial cable is an old type of media. It has been used in network applications as well as for television transmissions.
At the center of a length of coaxial cable is a core wire (which carries the signal). This core wire is surrounded by plastic insulation, braided metal shielding, and then an outer plastic coating.
There are two types of coaxial cable: Thin coax and thick coax. Thin coax has a diameter of only .25 inches; so it breaks easily. The varieties of thin coax include: RG-58, RG-59, and RG-62.
Thick coax (RG-8) is rarely used in networks today, because it is difficult and expensive to install. However, you may encounter it in some older networks.
