Networking

1. 1
LAN Cabling
CCNA Instructor Training Course
October 12-17, 2009
Department of Computer Engineering
Kasetsart University

2. 2
Objectives
 Cabling the LANs
 Straight-through
 Cross-over
 Roll-over

3. 3
LAN Device Consideration
Cost
Manageability
Expandability
Speed
Ports

4. 5
Ethernet in the Campus
 10base-T
 Fast Ethernet
 End user
 Gigabit Ethernet
 Backbone

5. 6
Twisted Pair Cable
100 Hz 5 MHz
Outer Insulator
(PVC)
Solid Copper
Conductors

6. 7
UTP Cables

7. 8
UTP cable standard
Category Bandwidth Digital/Analog Use
1 very low Analog Telephone
2 < 2 MHz Analog/digital LANs
3 16 MHz Digital LANs
4 20 MHz Digital LANs
5 100 MHz Digital LANs
5e 100 MHz Digital LANs
6 250 MHz Digital LANs
6a 550 MHz Digital LANs
7 600 MHz Digital LANs

8. 9
UTP Cables and Ethernet
Types UTP Cable Type Duplex Max Distance
10Base-T Cat3/Cat5 Half/Ful
l
100 m
100Base-T4 Cat3 Half/Ful
l
100 m
100Base-TX Cat5 Full 100 m
1000Base-T Cat5e/Cat6 Full 100 m
1000Base-TX Cat6 Full 100 m
10GBase-T Cat6a/Cat7 Full 100 m

9. 10
Shielded Twisted-Pair Cable

10. 11
Coaxial cable
100 KHz 500 MHz

11. 12
Coaxial cable standard
Category Impedance Use
RG-59 75 W Cable TV
RG-58 50 W Thin Ethernet
RG-11 50 W Thick Ethernet

12. 13
Coaxial cable connector
 Barrel Connectors
 Bayonet network connector (BNC)
 T-connector
 Terminator

13. 14
Attach the RJ-45

14. 15
Ethernet Straight-Thru Cable
TD +
TD -
RD +
RD -
1
2
3
4
5
6
7
8
PIN #
RJ-45 Connector
1
2
3
4
5
6
7
8
TD +
TD -
RD +
RD -
PIN #
RJ-45 Connector
PC
Hub
1
2
3
4
56
7
8
9
1
0
1
1
1
2
A
B
1
2
x
6
x
8
x
2
x
9
x
3
x
1
0
x
4
x
1
1
x
5
x
7
x
1
x
Ethernet
A
1
2
x
6
x
8
x
2
x
9
x
3
x
1
0
x
4
x
1
1
x
5
x
7
x
1
x
C

15. 16
Ethernet Crossover Cable
TD +
TD -
RD +
RD -
1
2
3
4
5
6
7
8
PIN #
RJ-45 Connector
1
2
3
4
5
6
7
8
TD +
TD -
RD +
RD -
PIN #
RJ-45 Connector
PC PC

16. 17
Ethernet Media and Connector
 “Electronic Industries Association and
the Telecommunications Industry
Association” (EIA/TIA) standards
 EIA/TIA-568 (SP-2840)
 Commercial Building Telecommunications Wiring
Standards

17. 18
RJ-45 Color Code
1. White/Green
2. Green
3. White/Orange
4. Blue
5. White/Blue
6. Orange
7. White/Brown
8. Brown
1. White/Orange
2. Orange
3. White/Green
4. Blue
5. White/Blue
6. Green
7. White/Brown
8. Brown
EIA/TIA 568 A EIA/TIA 568 B

18. 19
Straight-Thru Cable
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
EIA/TIA 568 A EIA/TIA 568 B

19. 20
Crossover Cable
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8

20. 21
Straight-Through Cable
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
straight-through

21. 22
Cross-Over Cable
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
cross-over

22. 23
Good vs. Bad Cabling
Good Bad
Wires are untwisted too long

23. 24
Roll-Over Cable
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
roll-over