Avocent DSR1020 User Manual download pdf (Page 62)

52 DSR Switch Installer/User Guide

Appendix D: UTP Cabling

The following information is intended to brief you on various aspects of connection media. The

performance of a DSR switching system depends on high quality connections. Poor quality or

poorly installed or maintained cabling can diminish DSR 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.

DSR switching systems utilize UTP cabling.

UTP copper cabling

The following are basic definitions for the three types of UTP cabling that the DSR

switch supports:

• CAT 5 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. 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 installations utilizing CAT 5, 5E and 6 cable

specifications. The DSR switching system supports either of these wiring standards. Please refer to

the following table for details.

Table D.1: UTP Wiring Standards

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

1 2 ... 57 58 59 60 61 62 63 64 65 66 67 ... 75 76

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Avocent DSR1020 User Manual Page 62