The document classifies and describes different types of transmission media used for data communication, including guided media like twisted pair cable, coaxial cable, and fiber optic cable which transmit data through a physical medium, as well as unguided media such as radio waves, microwaves, and infrared which transmit electromagnetic waves wirelessly without a physical path. It provides details on the composition, categories, applications and specifications of each type of transmission medium.

2. Contents
• Transmission Media
• Guided Media
• Twisted Pair Cable
• Unshielded Twisted Pair Cable
• Shielded Twisted Pair Cable
• Coaxial Cable
• Fiber Optic Cable
• Unguided Media
• Radio Wave
• Microwave
• Infrared

3. Presented by-
Vikas Singh
Yadav
Ishita
Upadhyay

4. Transmission Media

5. Trans
missio
n
Media
Guided
Media
Twiste
d Pair
Cables
UTP STP
Fiber
Opti
c
Coaxi
al
Cable
Unguided
Media
Radio
Wave
Micro
wave
Infrare
d
Classifications of
Transmission Media

6. Types of
Transmission Media
Guided Media
Unguided Media
Its is a media by which we transmit
data through specific path. The data
signals are bound by the "cabling"
system. Guided media include twisted-
pair cable, coaxial cable, and fiber-
optic cable. Guided Media is also
known as Bound Media.

7. Types of
Transmission Media
Guided Media
Unguided Media
Unguided media transport
electromagnetic waves without
using a physical conductor.
Electromagnetic spectrum used for
wireless communication -

8. Guided Media
Twisted Pair
Cable
Coaxial Cable
Fiber Optic Cable
It consist of two conductors,
each with its own plastic
insulation and both are
twisted together. One wire is
used to carry signal and
other is used as aground
reference.

9. Guided Media
Twisted Pair
Cable
Coaxial Cable
Fiber Optic Cable
Coaxial Cable (coax) are used
to transmit very high
frequency data. Coax has
central core of solid metal,
enclosed in insulator and
insulator is enclosed in outer
conductor of metal foil.

10. Guided Media
Twisted Pair
Cable
Coaxial Cable
Fiber Optic Cable
Fiber Optic Cable is made up
of glass or plastic and
transmits signals in the form
of light. Optical Fiber Cables
use reflection for
propagation of light along
channel.

11. Twisted
Pair Cable
Unshield
Twisted
Pair
Shielded
Twisted
Pair
Categories
Connectors
Applications
Difference b/w
UTP7STP
The Electronic Industries Association
(EIA) has developed standards to
classify UTP and STP Cable into seven
categories. Categories are determined
by cable quality, with 1st as the lowest
and 7th as the highest. Each category has
different specifications, data transfer
rate and uses.

12. Twisted
Pair
Cable
Unshield
Twisted
Pair
Shielded
Twisted
Pair
Categories
Connectors
Applications
Difference b/w
UTP7STP

13. Twisted
Pair
Cable
Unshield
Twisted
Pair
Shielded
Twisted
Pair
Categories
Connectors
Applications
Difference b/w
UTP7STP
• Used in Telephone Lines to
provide voice and data channel.
• Used as DSL lines by
telecommunication companies to
provide high data-rate
connection.

14. Twisted
Pair Cable
Unshield
Twisted
Pair
Shielded
Twisted
Pair
Categories
Connectors
Applications
Difference b/w
UTP7STP

15. Coaxial Cable
Category
Connectors
Applications
It is categorized by their RADIO GOVERNMENT (RG)
RATINGS. Each RG number denotes unique
specifications, wire gauge of inner conductor, use, size
and type of outer casing.
Some categories are detailed below -
Category Impedence Use
RG-59 75Ω Cable TV
RG-58 50Ω Thin Ethernet
RG-11 50Ω Thick Ethernet

16. Coaxial Cable
Category
Connectors
Applications
Boynet Neil Connector
BNC - T
BNC Terminator

17. Coaxial Cable
Category
Connectors
Applications
• Coax is used in analog
telephone n/w to carry over
10,000 voice signals.
• It is used in digital telephone
n/w to CARRY DIGITAL DATA
UPTO 600 mbps.

18. Fiber Optic Cable
Propagation Modes
Cable Composition
Connectors
Applications

19. Fiber Optic Cable
Propagation Modes
Cable Composition
Connectors
Applications

20. Fiber Optic Cable
Propagation Modes
Cable Composition
Connectors
Applications

21. Fiber Optic Cable
Propagation Modes
Cable Composition
Connectors
Applications
• Used for creating hybrid cable TV
n/w.
• Due to wide BANDWIDTH, it
transfers at very high DATA RATE
i.e. 1600 Gbps.
• Also used in LANs such as 100 BASE-
FX n/w.

22. Unguided Media
Radio wave
Microwave
Infrared
Frequency range
is b/w 3kHz and
1GHz.

23. Unguided Media
Radio wave
Microwave
Infrared
Frequency is b/w 1 and 300GHz.
Microwaves are unidirectional. Its
propagation is in line-of-side.
Microwaves are transmitted by
PARABOLIC DISH ANTENNA and HORN
ANTENNA.

24. Unguided Media
Radio wave
Microwave
Infrared
Infrared waves, with
frequencies from 300GHz to
400THz (ƛ= 1mm to 770nm) can
be used for short range
communication. Used to
transmit digital data with a very
high rate.

25. References
• Data Communication and Networking 5E, Behrouz A.
Forouzan
• www.wikipedia.org
• searchnetworking.techtarget.com/definition/networking/
• https://commotionwireless.net/docs/cck/networking/learn-
networking-basics/
• www.wavelink.com.au/information/computer-networking-
defined.php