Appendix 6 Network Connection Instructions
BECS-D19 User’s Manual
159
Appendix 6 Network Connection Instructions
I. Making Ethernet Cable
1.
Making Straight-through Cable
The pins in the two terminals of twisted-pair cable have to be in one-to-one
correspondence. If the first pin of one terminal is green, the first pin of the other terminal
must be green as well. The twisted-pair cable made in this way is usually called as
“straight-through cable”.
Pin Number
1
2
3
4
5
6
7
8
Pin Color
orange
white
orange
green
white
blue
blue
white
green
brown
white
brown
Shown as below:
One Terminal
The Other Terminal
Usage: a. Link switch or HUB to router
b. Link computer (including server and workstation) to switch or HUB.
2.
Making Crossover Cable
1-3, 2-6 crossover connection: Twisted-pair cable has 4 pairs of pins (8 pins). Only
4 pins are actually used in network connection, namely the first, second and third, sixth
pins, for the purpose of receiving and sending signals. The connection rule is: the first
pin of one terminal is connected to the third pin of the other terminal, and the second to
the sixth. Other pins are connected to the corresponding pins. Cable made in this way is
called “crossover cable”.
Pin Number
1
2
3
4
5
6
7
8
Corresponding
Pin Number
3
6
1
4
5
2
7
8
Pin Color
white
green
green
white
orange
blue
white
blue
orange
white
brown
brown
Shown as below: