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E
Appendix E: UTP Cabling
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Appendix E: UTP Cabling
This appendix discusses various aspects of connection media. The SCS system
utilizes UTP cabling. The performance of the system depends on high quality
connections. Poor quality or poorly installed or maintained cabling can diminish
SCS system performance.
NOTE:
This appendix is for information purposes only. Please consult with your local
code officials and/or cabling consultants prior to any installation.
UTP Copper Cabling
The following are basic definitions for the three types of UTP cabling that the
SCS supports.
• CAT 5 (4-pair) high performance cable consists of twisted pair conductors,
used primarily for data transmission. The twisting of the pairs gives this
cable some immunity from the infiltration of unwanted interference. CAT 5
cable is generally used for networks running at 10 or 100 Mbps.
• CAT 5E (enhanced) cable has the same characteristics as CAT 5, but is
manufactured to somewhat more stringent standards.
• CAT 6 cable is manufactured to tighter requirements than CAT 5E cable.
CAT 6 has higher measured frequency ranges and significantly better
performance requirements than CAT 5E cable at the same frequencies.
Wiring Standards
There are two supported wiring standards for 8-conductor (4-pair) RJ-45
terminated UTP cable: EIA/TIA 568A and B. These standards apply to