Csc339 – lecture 2 network fundamental
Download as PPTX, PDF3 likes910 views
The document provides guidelines for a network fundamentals course at Jahan University, including attendance policies, grading criteria, and detailed information on various types of network cabling. It covers wired media such as twisted pair, coaxial, and fiber optic cables, discussing their configurations, advantages, and use cases. The importance of adhering to submission deadlines and classroom conduct, such as the prohibition of mobile phones, is also emphasized.
Csc339 – lecture 2 network fundamental
- 1. CSC339 – NETWORK FUNDAMENTAL Jahan University Computer Science Department Lecturer: Islahuddin Jalal Master in Cyber Security 10/16/2015Jahan University 1
- 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. 10/16/2015Jahan University 2
- 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% 10/16/2015Jahan University 3
- 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 10/16/2015Jahan University 4
- 5. Network Media Wired Media Twisted Pair Coaxial Fiber Optic Wireless Media RF (Radio Frequency) Infra red rays 10/16/2015Jahan University 5
- 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 10/16/2015Jahan University 6
- 7. Types of cable for Wired Network media 10/16/2015Jahan University 7 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). 10/16/2015Jahan University 8
- 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. 10/16/2015Jahan University 9
- 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. 10/16/2015Jahan University 11
- 12. UTP vs STP UTP: Unshielded Twisted Pair Susceptible to EMI STP: Shielded Twisted Pair Protects against EMI Uses an RJ-45 Connector 10/16/2015Jahan University 12
- 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. 10/16/2015Jahan University 13
- 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 10/16/2015Jahan University 14
- 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 10/16/2015Jahan University 15
- 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 10/16/2015Jahan University 16
- 17. Crossover Cable Used for same devices connectivity PC to PC Switch to Switch Router to router Etc. 10/16/2015Jahan University 17
- 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 10/16/2015Jahan University 18
- 19. Rolled Over Cable Used for router configuration 10/16/2015Jahan University 19
- 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 10/16/2015Jahan University 20
- 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) 10/16/2015Jahan University 22
- 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