Hi i would like to ask what is the diference between the two versions of wiring the RJ 45 connector. when I was making my first networking cable, i used the wiring according to an image that only was using/connecting four wires into the connector. the cable works and works well. Now i found plenty of other images, all of them reccomending the full /eight wires/ connecting. Do I run my network on lower Mbits/sec? what are the other four wires used for? Thanks
In 10/100 Mbps wiring only 4 wires are used. 2 for sending data, 2 for receiving data. The other 4 are used for cancelling cross-talk and minimizing other problems associated with the physics of transmission. The wires are arranged in 4 pairs, with each pair twisted. It's the twisting that solves or reduces transmission problems. In Gigabit over copper (1000Mbps) all 8 wires are used, 4 for transmit and 4 for receive. The twisting of the wires is much tighter and the actual connectors on the ends have a smaller tolerance. You should also be aware that there are two major standards for wire arrangement in UTP data cabling - 568A and 568B. You will need to know what standard is used in your network for consistency's sake. Mixing 568A and 568B results in cross-over which may or may not be what you intended. Hope this helps.
There Are Two Main Wiring Hook-ups That Should Both Work Just Fine.
You should terminaqte all 8 wires even when running at 100M 10M speeds are ok using just the 4, but at 100M, while the unused pairs do not carry a signal, they do help with attenuation.
