1. 1 Cable types

2. 2 Topology characteristics

3. 3 UTP cable categories

4. 4 Wireless technologies

5. 5 Cable management zWiring standard zPlenum zWall jacks zPunch-Down Block zPatch panels zCable ties and basket systems zServer rooms

6. 6 Punch down block and connectors

7. 7 Patch panel front view

8. 8 Basket systems

9. 9 Cable management, wiring z2 cabling typer yHorizontal wiring yBackbone or vertical zStruktureret kabling (figur 4.17) yWork area yTelecommunication closet yEquipment room yHorizontal cabling yBackbone cabling yEntrance facility

10. 10 Structured cabling

11. 11 Cable management, server rooms zServer rooms need to be secure and only accessible to a few persons zRules yLock the server room when not in use yAlways require user names and passwords yAlways log out when not operating the server ySet up restrictions to disable direct log ong to the server yPerform security monitoring as auditing

12. 12 Cable management, server rooms zESD suggestion yESD prevention program – ESD wrist straps, place server on anti static mats yKeep humidity low (<50 %) yInstall an UPS yKeep system cool (room temperatur or less) yMake tape backup or other type of backup

13. 13 Cable management, server rooms zAlso yPlace server in a rack or rack mounted cabinet yServer blade

14. 14 Test of cable systems zQuestions to ask yDid the cable ever work correctly? yWhen did the cable begin to fail? yDo the errors occur at specific times? yIs it a new or used cable? yWhat has changed since the cable began to fail?

15. 15 Selecting network card zFind the network type zFind the network speed zMake sure the card has the correct connectors zThe card must fit in the available expansion bus

16. 16 Selecting network component zHubs yLayer 1. Packet arrives to a port and is copied to all other hosts zBridge yLayer 2. Net of different types can be connected zSwitch yBridge has problems with scalability, latency, network errors and collisions

17. 17 Ethernet types

18. 18 Network technologies z10Base5, rules see p. 170 z10Base2, rules see p. 171 z10BaseT, rules see p. 173 z5-4-3 rule

19. 19 10base5

20. 20 10base2

21. 21 10baseT

22. 22 5-4-3 Ethernet coaxial

23. 23 5-4-3 for UTP

24. 24 5-4-3 UTP/coax

25. 25 Switching in WAN

26. 26 WAN characteristics

27. 27 WAN characteristics