6. UTP Cabling
6. UTP Cabling
This appendix discusses various aspects of connection media. The performance
of a s3-0801/1601 switching system depends on high quality connections. Poor
quality or poorly installed or maintained cabling can diminish switching system
performance. Switching systems utilize UTP cabling.
This appendixis for information purposes only. Please consult with your localcode
officials and/or cabling consultants prior to any installation.
6.1 UTP copper cabling
The following are basic definitions for the three types of UTP cabling that the
switch supports:
• UTP (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. UTP 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.
6.2 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
installations utilizing CAT 5, 5E and 6 cable specifications. The switching system
supports either of these wiring standards. 6.2 describes the standards for each
pin.
Pin EIA/TIA 568A EIA/TIA 568B
1 white/green white/orange
2 green orange
Table 6.1: UTP Wiring Standards
590-1035-640A
41
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