Last updated: 2/23/2003
1. Try to avoid running cables parallel to power cables.
2. Do not bend cables to less than four times the
diameter of the cable.
3. If you bundle a group of cables together with
cable ties (zip ties), do not over-cinch them. It's okay to snug them
together firmly; but don't tighten them so much that you deform the cables.
4. Keep cables away from devices which can introduce
noise into them. Here's a short list: copy machines, electric heaters,
speakers, printers, TV sets, fluorescent lights, copiers, welding machines,
microwave ovens, telephones, fans, elevators, motors, electric ovens, dryers,
washing machines, and shop equipment.
5. Avoid stretching UTP cables (tension when pulling
cables should not exceed 25 LBS).
6. Do not run UTP cable
outside of a building. It presents
a very dangerous lightning hazard!
7. Do not use a stapler to secure UTP cables. Use
telephone wire/RG-6 coaxial wire hangers which are available at most hardware
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Hess and John Gold; A Practical Guide to Cable Selection, National
Semiconductor Application Note 916, 0ctober 1993
M. True; Data Transmission Lines and Their Characteristics,, National Semiconductor
Application Note 806, April 1992
Spurgeon's Ethernet Web Site
Robert Grover Brown, et al; Lines, Waves, and Antennas,
The Transmission of Electrical Energy, The Ronald Press Company, New
And my thanks to many other Web sites I have visited
while researching this article.
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