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Video Lectures (View at the following links)

1. Network Media UTP 1 = http://www.youtube.com/watch?v=5HVdG6R52t8
2. Network Media UTP 2 = http://www.youtube.com/watch?v=u-Tns9SH4mA
3. Network Media UTP 3 = http://www.youtube.com/watch?v=b4cpleG7nAM

Normal Cat-5

Crossover Cable
RJ-45 PIN RJ-45 PIN
1 Rx+ 3 Tx+
2 Rc- 6 Tx-
3 Tx+ 1 Rc+
6 Tx- 2 Rc-
Straight Through Cable
RJ-45 PIN RJ-45 PIN
1 Tx+ 1 Rc+
2 Tx- 2 Rc-
3 Rc+ 3 Tx+
6 Rc- 6 Tx-

 

Pin #

Signal

EIA/TIA 568A

AT&T 258A, or EIA/TIA 568B

Ethernet 10BASE-T
100BASE-T

1

Transmit+

White/Green

White/Orange

X

2

Transmit-

Green/White
or Green

Orange/White
or Orange

X

3

Receive+

White/Orange

White/Green

X

4

N/A

Blue/White
or Blue

Blue/White
or Blue

Not used *

5

N/A

White/Blue

White/Blue

Not used *

6

Receive-

Orange/White
or Orange

Green/White
or Green

X

7

N/A

White/Brown

White/Brown

Not used *

8

N/A

Brown/White
or Brown

Brown/White
or Brown

Not used *


Crossover Cat-5

Step 2b picture Step 2c picture