Kingston Technology KND2415TX User Manual
Kingston Technology Company
KND2415TX User’s Guide - Rev. A00
16
Appendix D Commonly Asked Questions
What are the Guidelines for Proper Termination?
It is important to maintain the twists of the cable as close to the termination on the outlet
as possible, to avoid NEXT (Near End Cross Talk) and to maintain the transmissions
characteristics of the Category. Category specications require that pair twisting be
maintained to within the following distances from the outlet termination:
• Category 3
maximum allowed untwisting:
3 inches
•
Category 4 maximum allowed untwisting: 1 inch
• Category 5 maximum allowed untwisting: 1/2 inch
Can I mix CAT 3 and CAT 5 cabling in the same building?
Yes, but keep in mind, you will not have CAT 5 performance. It is a good idea to keep the
lines separated when installing any new lines. Use CAT 5 UTP cabling only.
Can a Four-Pair CAT 5 cable support two 100BASE-TX
devices?
Although only two pairs are used in the standard four-pair CAT 5 UTP cable, it is not
recommended because it exceeds the specications outlined by IEEE 802.3u.