This is the series of network fundamental course for IT learners. The student should follow the series from the first lecture...

1. CSC339 – NETWORK
FUNDAMENTAL
Jahan University
Computer Science Department
Lecturer: Islahuddin Jalal
Master in Cyber Security
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2. Class Policy
 A student must reach the class-room in time. Late comers may join the class
but are not entitled to be marked present.
 Attendance shall be marked at the start of the class and students failing to
secure 75% attendance will not be allowed to sit in final exam.
 The assignment submission deadline must be observed. In case of late
submission, ten percent may be deducted from each day.
 Those who are absent on the announcement date of the assignment/test.
Must get the topic/chapter of test/assignment confirmed through their peers.
 Mobile phones must be switched-off in the class-rooms.
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3. Grading Evaluation for Network fundamental
Internal Evaluation
Midterm Exam 20%
Attendance 5%
Assignment/Presentations 5%
Quizzes/Tests 10%
Total Internal Evaluation 40%
Final-term Examination
Final-term Exam 60%
Total Marks 100%
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4. Topics to be discussed
 What is network media?
 Network cabling for wired media
 Types of cable for Wired Network media
 Cabling of twisted pair cable
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5. Network Media
 Wired Media
 Twisted Pair
 Coaxial
 Fiber Optic
 Wireless Media
 RF (Radio Frequency)
 Infra red rays
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6. Network Cabling for wired media
 Cabling is the transmission medium for data
 Variety of cable types are used
 Each cable types has its own advantages and disadvantages
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7. Types of cable for Wired Network media
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 Three primary types of cables for wired media
 Twisted Pair
 Coaxial
 Fiber Optic

8. Wired Media - Twisted Pair
 Gets its name by having four pairs of wires that are twisted to help reduce
crosstalk or interference from outside electrical devices.
 Crosstalk is interference from adjacent wires.
 There are two forms of twisted-pair cabling
 Unshielded twisted-pair (UTP)
 Shielded twisted-pair (STP).
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9. UTP
 Unshielded twisted-pair (UTP) cables are familiar to you if you have
worked with telephone cable.
 The maximum distance of UTP is 100 meters.
 UTP cable uses small plastic connectors designated as registered jack 45
 It can be easy to confuse the RJ-45 connector with the RJ-11 connector.
 The RJ-11 connector is a telephone connector
 Twisted-pair cable is more susceptible to interference than coaxial,
however, and should not be used in environments containing large
electrical devices.
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10. Continue….
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RJ-11
RJ-45

11. Categories of UTP
 Each category of UTP cabling was designed for a specific type of
communication or transfer rate.
 CAT 3: 10 Mbps
 CAT 5: 100 Mbps
 CAT 5e: 1000 Mbps
 CAT 6: 1000 Mbps
 CAT 6e: 10000 Mbps
 All categories can travel up to 100 meters before suffering from attenuation.
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12. UTP vs STP
 UTP: Unshielded Twisted Pair
 Susceptible to EMI
 STP: Shielded Twisted Pair
 Protects against EMI
 Uses an RJ-45 Connector
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13. STP
 Shielded twisted-pair (STP) cable is very similar to UTP
cabling, but it differs from UTP in that it uses a layer of
insulation within the protective jacket, which helps
maintain the quality of the signal.
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14. Cabling of Twisted Pair Cable
 Cabling/cable are used for computer connectivity or computer network
 We have three important types of Cabling
 Straight-through cable
 Crossover Cable
 Rolled Over Cable
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15. Straight-through Cable
 Used for different devices
 PC to Switch
 PC to Hub
 PC to DSL(Digital Subscriber Line)
 PC to Router
 Switch to Router
 Etc
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16. Configuration of Straight through cable
 Side A: white orange, orange, white green, Blue, White blue, Green, white
brown, Brown
 Side B: white orange, orange, white green, Blue, White blue, Green, white
brown, Brown
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17. Crossover Cable
 Used for same devices connectivity
 PC to PC
 Switch to Switch
 Router to router
 Etc.
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18. Configuration for Cross over Cable
 Side A: white orange, orange, white green, Blue, White blue, Green, white
brown, Brown
 Side B: white green, Green, white organge, Blue, White blue, orange, white
brown, Brown
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19. Rolled Over Cable
 Used for router configuration
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20. Configuration for Roll over Cable
 Side A: white orange, orange, white green, Blue, White blue, Green, white
brown, Brown
 Side B: Brown, white brown, Green, white blue, Blue, white green, orange,
white orange
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21. Wired Media – Coaxial
 Coaxial cable is made up of 4 layers:
 Copper Core
 Inner Insulator
 Shielding Wire Mesh
 Outer Insulator
 Thinnet (RG-58/Cheaper Net/10Base2)
 10 Mbps
 185 Meters
 Uses a BNC Connector
 Has been primarily replaced by twisted pair.
 Thicknet (RG -8)
 10 Mbps
 500 Meters
 Uses AUI connector
 RG-59 & RJ-6
 Typically used for cable TV.

22. Thinnet vs Thicknet
Coax Type Cable Grade Thickness Maximum
Distance
Transfer
Rate
Connector Used to
Connect NIC to Cable
Type
Thinnet RG-58 0.25 in 185 m 10 Mbps BNC (British Naval Connector)
Thicknet RG-8 0.5 in 500 m 10 Mbps AUI (Adapter Unit Interface)
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23. BNC Barrel Connectors
BNC T Connectors
BNC Terminator
BNC Port NIC
10Base2 – using BNC T connector and
RJ58-AU coaxial cable

24. DIX connector
DIX connector NIC
DIX connectors 10Base5 – Male DIX connector
and RJ11 cable

25. Wired Media – Fiber Optic
 Fiber optic cable uses light pulses instead of electricity to
transmit data.
 Benefits
 More Secure
 Not Susceptible to EMI
 Very Fast
 Long Distances
 Drawbacks
 More Expensive
 Not as Flexible
 Uses SC, ST, and LC Connectors

26. Common Connectors

27. END
Thanks for
hearing…………………….