WHAT ARE THE TYPES OF CABLE?
A. TWISTED PAIR
Twisted pair is the ordinary copper wire that connects home and many business computers to the telephone company. To reduce crosstalk or electromagnetic induction between pairs of wires, two insulated copper wires are twisted around each other. Each connection on twisted pair requires both wires.
Unshielded twisted pair (UTP) cables are widely used in the computer and telecommunications industry as Ethernet cables and telephone wires.
B. Coaxial Cable
Twisted pair is the ordinary copper wire that connects home and many business computers to the telephone company. To reduce crosstalk or electromagnetic induction between pairs of wires, two insulated copper wires are twisted around each other. Each connection on twisted pair requires both wires.
2 types of twisted pair
- STP (Shielded Twisted Pair)
Shielded twisted pair (STP) cable was originally designed by IBM for token ring networks that include two individual wires covered with a foil shielding, which prevents electromagnetic interference, thereby transporting data faster.
STP is similar to unshielded twisted pair (UTP); however, it contains an extra foil wrapping or copper braid jacket to help shield the cable signals from interference. STP cables are costlier when compared to UTP, but has the advantage of being capable of supporting higher transmission rates across longer distances.
- UTP ( Unshielded Twisted Pair)
Unshielded twisted pair (UTP) cables are widely used in the computer and telecommunications industry as Ethernet cables and telephone wires.
In an UTP cable, conductors which form a single circuit are twisted around each other in order to cancel out electromagnetic interference (EMI) from external sources. Unshielded means no additional shielding like meshes or aluminum foil, which add bulk, are used.UTP cables are often groups of twisted pairs grouped together with color coded insulators, the number of which depends on the purpose.
- Coaxial cable,is a type of electrical cable that has an inner conductor surrounded by a tubular insulating layer, surrounded by a tubular conducting shield. Many coaxial cables also have an insulating outer sheath or jacket. The term coaxial comes from the inner conductor and the outer shield sharing a geometric axis.
C. Fiber Optic Cable
An optical fiber cable, also known as a fiber optic cable, is an assembly similar to an electrical cable, but containing one or more optical fibers that are used to carry light. The optical fiber elements are typically individually coated with plastic layers and contained in a protective tube suitable for the environment where the cable will be deployed. Different types of cable are used for different applications, for example long distance telecommunication, or providing a high-speed data connection between different parts of a building.
DIFFERENCES OF THE CABLES
TWISTED PAIR IS THE MOST COMMON OF THE CABLES, HAS 4 PAIRS OF WIRE OR 8 COPPER WIRES.
STP ( SHIELDED TWISTED PAIR) UTP( UNSHIELDED TWISTED PAIR)
A METALLIC FOIL IS MOST COMMON FORM OF
WRAPPED AROUND TWISTED PAIR AND
EACH WIRE PAIRS. EASIER TO WORK WITH.
COAXIAL CABLE IT IS USED TO CABLE TV OPERATORS.
FIBER OPTIC CABLE HAS REFLECTIVE COATING THAT ALLOWS LIGHT BEAMS TO TRAVEL WITHOUT OUTER INTERFERENCE.
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