This document discusses the three main types of computer network cables: coaxial cables, twisted pair cables, and fiber optic cables. Coaxial cable has a central conductor surrounded by insulation and an outer conductor in a circular pattern. Twisted pair cable consists of several paired cables that transmit signals from source to destination over short ranges. Fiber optic cable uses glass or plastic cores to transmit pulse signals and has advantages of high speed, flexibility, and resistance to electromagnetic interference.

1. TYPES OF COMPUTER NETWORK CABLES
Sayma Sultana
Id : 1834902550
Department : CSE Department
Batch : 49th
University : City University
Submitted To
OPranab Bandhu Nath
Lecturer of CSE Department
City University

2. TYPES OF COMPUTER NETWORK CABLES
Computer network cable consists of several types that are usually
adjusted to the needs , conditions, network topology , protocols and
the size of a certain computer network.
There are 3 types of cables that are includes in the category of
computer network cables .
1. Coaxial cables
2. Twisted pair cables
3. Fiber optic cables
Coaxial cables :
Coaxial cable is a type of cable consisting of two carriers which one of
the conductor is in the middle of the cable and is surrounded by the
other conductor with a circular pattern. Coaxial works by delivering
current or electrical signals from source to destination.

3. Parts of the coaxial cable :
 Outside insulation – outer jacket which is the outermost part to
protect all parts of the cable.
 Copper mesh – some coaxial cables have a braid shield , some
have a foil shield and others have both a braid and foil shields.
These shields can supply ground for the carrier wire and help
protect the copper wire from EML and RFI.
 Insulation – plastic insulation which is the coating of conductor
cable.
 Copper wire – copper wire is the wire conductor at the Center of
the cable and is made of copper and may be either solid or
stranded.
Use of coaxial cable :
Coaxial cable is used on the type of network that has a bus network
topology and ring topology .
Disadvantage of coaxial cable :
One of the major disadvantages of this type of coaxial cable in
network is because it has a limited range and quality of transmitting
data , so it is rarely used. Coaxial cable is also considered less flexible .
Twisted pair cables :

4. Twisted pair cable is a cable that consists of several cables that are
paired together just like a coaxial cable , the working of twisted pair
cables are by transmitting current or electrical signals from source to
destination. Twisted pair cables have a range no farther than 100
meters , the speed varies from 10 Mbps to 10000 Mbps (10Gbps)
Types of twisted pair cables :
1. UTP ( unshielded twisted pair)
2. FTP ( foiled twisted pair)
3. STP ( shielded twisted pair)
UTP :
The UTP cable in its application does not support a protection from its
spiral set. Because it does not have any protection on the part of the
cable. UTP cable is widely used in telephone network cable and also
small network .
FTP :

5. FTP has better specification than UTP network cable , because the
cable layer is protected by some kind of foil so this makes the FTP
type cable has better resistance to noise and magnetic interference
than UTP cable.
STP :
Almost the same as FTP, STP cable also has protection inside the
cable layer . The only difference is the material used to coat the
arrangement of twisted pair cable . STP also has a good ability in
warding off noise and magnetic interference.
Fiber optic cables :
This fiber optic cable made of high quality silica glass although they
can both be made of plastic as well. The signal sent by fiber optic is a
pulses from source to destination .

6. Parts of fiber optic cable :
 Outer Jacket : which is the outermost part to protect all parts of
the cable
 Strength member : strengthening fibers function to keep the
cable from a hard collision.
 Coating : the coating works to keep the cable from bending.
 Cladding : the cladding servers as a barrier with the main core of
fiber optic cable
 Core : main core serves as a medium of data transmission .
Use of fiber optic cable :

7. Fiber optic cable is only used for special purpose such as the use of
backbone networks in a large company . But over time the network
using fiber optic become increasing popular and used for general
purposes.
Advantage :
 Able to transmit singles at high speed.
 simple and also flexible
 Can transmit pulses
 Resistant to radio electromagnetic waves.