Fujitsu Control 4 Serie Guia Del Usuario página 85

Appendix C: UTP cabling
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Cabling installation, maintenance, and safety tips
The following is a list of important safety considerations that should
be reviewed prior to installing or maintaining your cables:
• Keep all UTP runs to a maximum of 30 feet each.
• Maintain the twists of the pairs all the way to the point of
termination, or no more than one-half inch untwisted. Do not skin
off more than one inch of the jacket while terminating.
• If bending the cable is necessary, make it gradual with no bend
sharper than a one inch radius. Allowing the cable to be sharply
bent or kinked can permanently damage the cable's interior.
• Dress the cables neatly with cable ties, using low to moderate
pressure. Do not over tighten the ties.
• Cross-connect cables where necessary, using rated punch blocks,
patch panels, and components. Do not splice or bridge the cable
at any point.
• Keep the UTP cable as far away as possible from potential sources
of EMI, such as electrical cables, transformers, and light fixtures.
Do not tie the cables to electrical conduits or lay the cables on
electrical fixtures.
• Always test every installed segment with a cable tester. "Toning"
alone is not an acceptable test.
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EIA/TIA 568A
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EIA/TIA 568B
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