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1. Network Transmission
Media

2. Types of cables

3. Coaxial cable
• Consist of a solid copper core surrounded by an
insulator mainly made up of Poly Vinyl Chloride
(PVC) or Teflon
• Coaxial cables are less prone to interference (both
internal and external)

4. Types of Coaxial cable
• Coaxial cables are mainly divided into four
categories
Types of
Coaxial cables
RG58 RG8 RG6 RG59

5. RG58
• Maximum segment length is 200 meters
• Interference protection is better than twisted pair
cables
• Offers resistance of 50 ohms
• BNC-T connector is used to connect this cable
• Used in thinnet (10BASE2) network
• Mostly used in changing environments
• Easy to add/remove devices form the network using
RG58 cable
• Cheapest form of coaxial cable

6. RG8
• Maximum segment length is 500 meters
• Interference protection is good compared to any
copper cable
• Offers resistance of 50 ohms
• AUI and Vampire Tap connector is used to connect
this cable
• Used in 10BASE5 network
• Expensive than RG58
• Disadvantage is rigidness due to which it is only used
as a backbone

7. RG6
• Broadband quad-shielded
cable that offers an
impedance of 75 ohms
• Provides lower attenuation
characteristics
• Useful in cable TV, CCTV
and satellite dish antenna
• Covers distance up to 1500
feet (450m approx)

8. RG59
• Solid conductor is surrounded by a
foam polyethylene dielectric
• Offers impedance of 75 ohm and
used with BNC connector
• Useful in security camera, cable TV
and home theatre
• Covers a distance up to 1000 feet
(300m approx)
• Has a higher attenuation as
compared to other coaxial cables

9. Twisted Pair Cables
• A pair of cables twisted around each other forms a
twisted pair cable.
Twisted Pair cables
Unshielded Shielded
Twisted Pair Twisted pair

10. UTP Cables
• Pair of unshielded wires
wound around each other
• Cheapest form of cables
available for networking
purpose
• Highly used in LAN
environments
• Easy to install
• Easily gets affected by EMI
and RFI

11. UTP Cables
• Maximum cable length – 100m
• Bandwidth – 100 Mbps
• Connector – RJ45
• Bend Radius – 360 degree/feet
• Resistance – 50 ohm
• Signal Transmission Mode - Baseband

12. UTP cable types
• CAT1 – telephone cable
• CAT2 – 4 Mbps
• CAT3 – 10 Mbps, 16 MHz (10 Base T)
• CAT4 – 16 Mbps, 20 MHz (Token Ring)
• CAT5 – 100 Mbps, 100 MHz (100 Base T)
• CAT5e – 1000 Mbps, 100 MHz (22 Gauge)
• CAT6 – 1000 Mbps, 250 MHz (24 Gauge)
• CAT7 – 600 MHz

13. STP Cables
• Pair of wires wound around
each other is placed inside a
protective foil wrap
• Better protection from EMI,
RFI and crosstalk as
compared to UTP
• STP is cheaper than fiber
optic cable but costlier than
UTP

14. Types of STP Cables
• CAT5e – Operates at 350 MHz and carries data up to
1000 Mbps
• 150 Ohm Shielded Cable – Operates at 16 MHz

15. Fiber Optic Cable
• Bandwidth – Carries large amount of data ranging
from 100 Mbps to 1 Gbps
• Segment Length – Transmits data signals over larger
distance (2 – 100 K.M.)
• Interference – No electric signals pass through these
types of cables thus providing security. Used in areas
that are highly susceptible to noise, e.g. near TV
towers, radio stations and electric transformer.

16. Fiber Optic Cable Types
• Fiber optic cables can carry signals in a single
direction.
• Light signals are turned on and off in order to
transmit data
Fiber Optic Cable
Types
Single Mode Multi mode

17. Single Mode Fiber Optic cable
• A type of cable that has only a single strand of glass
fiber with a thin diameter.
• Fiber optic cables that use lasers are known as single
mode cable.
• Data can be transmitted at higher speeds and over
long distances

18. Multi Mode Fiber Optic cable
• A type of cable that contains a glass fiber with a
larger diameter.
• It is a 62.5/125 micrometer fiber cable.

19. Multi Mode Fiber Optic cable
• Multiple modes of light signals can be propagated
through it
• Transmits data over short distances
• Use LEDs as source of light
• Used to transmit two or more signals using a single
fiber
• Speed is less as compared to single mode fiber optic
cable
• Widely used now a days