work for the english

1. NETWORK CABLES
BY YEISON PALACIO
Optical fiber Coaxial cable UTP Cable

2. Fiber Optic is a bond made with a very fine thread of transparent material of small diameter and covered with
an opaque material that prevents the light from dissipating. Through the core, usually made of glass or plastics,
pulses of light are sent, not electric.
two kinds of fiber optic, multimode and
single mode
one for several connections and the other
for a connection

3. Coaxial cable
Now the use of coaxial cable has been gradually replaced by fiber optic
TYPES OF COAXIAL CABLE
THICK: (thick). This cable is usually known as "yellow wire", it was the coaxial cable used in most networks. Its
capacity in terms of speed and distance is large, but the cost of the wiring is high and its thickness does not allow its
use in pipes with too many cables. This cable is used in local area networks conforming to the 10 Base 2 standard.
THIN: (fine). This cable was used to reduce the cost of wiring the networks. Its limitation is in the maximum distance
a network section can reach without signal regeneration. However, the cable is much cheaper and thinner than the
thick and, therefore, solves some of the disadvantages of the thick cable. This cable is used in local area networks
conforming to the 10 Base 5 standard.

4. Unshielded Twister Pair
It is a twisted pair cable with no external metallic coating, so it is sensitive to interference. It is
an inexpensive, flexible and easy to install cable. The main applications in which twisted pair
cables are used are:
Subscriber loop: this is the last section of cable between a subscriber's telephone and the
exchange to which it is connected. This cable is usually UTP Cat.3 and is currently one of the
most used means for broadband transport, because it is an infrastructure that is implemented
in 100% of cities.
LAN networks: in this case UTP Cat.5 or Cat.6 is used for data transmission, obtaining
speeds of several hundreds of Mbps.