How to build your own UTP cables, for your local network

B. How to build your own UTP cables, for your local network

1. Straight 10 Base T / 100 Base T: 10BaseT and 100BaseT are most common mode of LAN. You can use UTP category-5 cable for both modes. A straight cable is used to connect a computer to a hub. You can use it to connect 2 hubs in the case one of the hubs has an uplink port. The configuration is described below:

Pin # Side A Side B

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1 Orange-White Orange-White

2 Orange Orange

3 Green-White Green-White

4 Blue Blue

5 Blue-White Blue-White

6 Green Green

7 Brown-White Brown-White

8 Brown Brown

2. Cross 10 Base T / 100 Base T: A cross cable for 10BaseT and 100BaseT is used to connect 2 computers directly. It is also used when you connect 2 hubs with a normal port on both hubs.

Pin # Side A Side B

-----------------------------------------------------------

1 Orange-White Green-White

2 Orange Green

3 Green-White Orange-White

4 Blue Blue

5 Blue-White Blue-White

6 Green Orange

7 Brown-White Brown-White

8 Brown Brown