Repeaters are devices that boost a signal’s ability to travel farther on the network. You will need to buy a repeater when the total length of a segment of your network cabling is larger than the maximum for your cable type. For instance, 10Base2 coaxial has a maximum length of 185 meters, and 10/10BaseT twisted pair has a maximum length of 100 meters. Somewhere before the 185 and 100 meters is finished, you will need to provide a repeater to extend the signal.
A general rule of them for the Ethernet is that three repeaters is the maximum number of devices that a signal can pass through. You can have more repeaters than three but you’ll have to plan your network so that the signal is able to pass through with only three repeaters.
If you have two hubs that are daisychained together so that all 14 devices on both hubs are able to communicate together, you can use a repeater to extend the length of the signal.
Two-port 10Base2 (using coaxial cable) repeaters are expensive and are rarely used because of th expense of the equipment.
One other note about repeaters is that the 185 meter and 100 meter maximum cable length refers to your ability to tie the two segments together; they don’t actually extend the length of a single segment.
As you will see when you study this in more detail, some of the 10/100BaseT hubs have a Bayonet Neill-Concelman (commonly called BNC) connector on the backside. In reality, this connector lets you connect a 185 meter segment (thinnet) because the BNC connector itself is a thinnet repeater. The segment can attach 10BaseT hubs, separate PCs or both.
So the repeater is a handy device that will enable you to extend the length of your network.
Author: Mort Greenwood
Article Source: EzineArticles.com
Provided by: How Electric Pressure Cookers Work
Related posts:
