Coaxial cable divided into two forms.
• Thin Coaxial Cable : Is a small cable with 
0.64 cm diameter. It is small and highly 
flexible, so it can be used with almost any 
type of network installation. This type of 
cable signal up to 185 meters.
• Thick Coaxial Cable : Is a rather strong 
cable with approximately 1.27 cm 
diameter. This type of cable signal up to 
500 meters. Commonly used to connect 
the main path of the data or backbone. 
Currently most popular cable used to 
make the backbone is fiber optic cable.