Optical cable is composed of cable core, reinforcing steel wire, filler and sheath, etc. In addition, there are waterproof layer, buffer layer, insulated metal wire and other components as needed.
The optical cable is composed of three parts: strength core and cable core, sheath and outer sheath. There are two types of cable core structures: single-core type and multi-core type: single-core type has two types: solid type and tube bundle type; multi-core type has two types: ribbon type and unit type. There are two kinds of outer sheaths: metal armored and non-armored.