Presentation about types of networking media which is the physical cable.

1. EFRON & JOEL
FNW102 Fundamental of Networking

2. COXIAL CABLE
• All the conductor and wire shares the common excess
• Older tech, isn’t used that much
Central
Conductor
Insulating
Sheets
Binder
Single Braid
Jacket

3. RG-59RG-58 RG-6
Computer
Networking
Cable TV Satellite TV
• F – Type Connector
• Connect the back of the television set
or to the receiver.
• Advantages
• Resist to EMI
(Electromagnetic
Interference)
• Resistance to physical
damage
• Disadvantages
• Expensive
• Not support fast
networking standard
(10Mbps)

4. TWISTED PAIR CABLE
(Unshielded)
• Compose of pairs of copper wire, usually
consist of 4 to 8 wires
• Widely implemented
• Support by widely variety of networking
standard : Ethernet , Token Ring
Plastic PVC • Inner Connector
• Copper Wire
•22, 24 gauge
• When the current past any
wind copper wire,
electromagnetic field wire is
created called EMI
• Twist the wire together so
the EMI emits cancel each
other
• The tighter the twist, the less
EMI experience, hence the
faster the transfer data

5. RJ - 45
RJ - 11
Network
Telephone
Categories Characteristics
CAT 3 • Older
• 10 to 16 Mbps
CAT 5 • 100 / 1000 Mbps
• Widely implemented
CAT 5e • Enhance of CAT 5
• Better crosstalk protection
• Up to 10 000Mbps
CAT 6 • Fast broadband connection

6. Advantages
• Flexible
• Easy to work with
• Inexpensive
• Support modern fast standard
Disadvantages
• Accept EMI from each other
• Accept EMI from other surrounding
• Susceptible to eavesdrop
• Shielded Twisted Pair – Reduce the amount of
Electromagnetic Interference emits and absorb

7. Optical Fiber
HOW ITS MADE

8. Jaket
Protective
Layer
Cladding
Central Core
(Glass /
Plastic )
• Transfer light signal instead of electrical signal
• The transferred light represented as binary
form
• Both ends have light sensitive devices that
transfer the light into digital form to process my
computer
Help the light
rays stay into the
central core by
bouncing back

9. Single - Mode Multi - Mode
Transfer light at single ray
mode
Very, very long data
transmission
Very thin core (10 Microns)
The light always stay at the
centre of the core and doesn't
bounce back
Transfer light at multi ray
mode
Light dispersed as the data
travel, thus data can’t travel
long
Thick core (50 – 100 Microns)
The light always bounce
around, cladding help the light
to stay makes the light
dispersed

10. Advantages
• Immune to EMI
• Not use electrical signal, thus data
transfer can’t eavesdrop
•Support high data transfer rate at long
distance
Disadvantages
• Very, very expensive
• Not flexible
• Easy to break
• Hard to configure

11. Wireless Communications
 Wireless networks are becoming
increasingly popular, and they utilize a
different type of technology.
 To receive the signals from the access
point, a PC or laptop needs to install a
wireless adapter card, or wireless
network interface card (NIC).

12. Wireless Access Points
 Wireless signals are electromagnetic
waves that can travel through the
vacuum of outer space and through a
medium such as air.

13. Electromagnetic Spectrum
 You can differentiate electromagnetic
waves by their frequency.
 Low-frequency electro-magnetic waves
have a long wavelength while high-
frequency electromagnetic waves have
a short wavelength.