Avocent Vertiv AutoView 2108, Инструкция по установке и эксплуатации

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Appendix E: UTP Cabling
This appendix discusses various aspects of connection media. The switch system utilizes UTP cabling.
The performance of the system depends on high quality connections. Poor quality or poorly installed or
maintained cabling can diminish switch 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.
E.1 UTP copper cabling
The following are basic definitions for the three types of UTP cabling that the switch supports.
• CAT5 (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. CAT5 cable is generally used for networks running at 10 or 100
Mbps.
• CAT5E (enhanced) cable has the same characteristics as CAT5, but is manufactured to
somewhat more stringent standards.
• CAT6 cable is manufactured to tighter requirements than CAT5E cable. CAT6 has higher
measured frequency ranges and significantly better performance requirements than CAT5E
cable at the same frequencies.
E.2 Wiring standards
There are two supported wiring standards for 8-conductor (4-pair) RJ45 terminated UTP cable: EIA/TIA
568A and B. These standards apply to installations utilizing UTP cable specifications. The switch system
supports either of these wiring standards. The following table describes the standards for each pin.
PIN EIA/TIA 568A EIA/TIA 568B
1 white/green white/orange
2 green orange
3 white/orange white/green
4 blue blue
5 white/blue white/blue
6 orange green
7 white/brown white/brown
8 brown brown
Table A.5 UTP wiring standards
E.3 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 meters 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.
Vertiv | Avocent® AutoView™ 2108/2216/3108/3216 Switch Installer/User Guide | 57