No I disagree, You can technically make it as short as needed, although if you are using them on a patch panel or switch you would like to leave all of them long enough to reach corner to corner diagonally in case of issues with other cables. There is not a length that is too short unless it wont reach what you need it to ; )
Here are some <a href=”http://en.wikipedia.org/wiki/Category_5_cable”>more details</a> if you need more information.
I’m fairly certain that 18 inches is supposed to be the minimum and you should not have any cat5e in excess of 250-300 feet.
Hope this helps!
There are certain instances where the 15m minimum is required. But if you are not using consolidation points that is not a requirement for CAT5e. If you are using consolidation points, you can leave a service loop (slack) in the cable.
– Carrie Higbie, <a href=”http://searchnetworking.techtarget.com/”>SearchNetworking.com</a> infrastructure and project management expert