Avocent 590-686-501D Manual Do Utilizador
100
DSR Switch Installer/User Guide
Appendix D: UTP Cabling
This appendix discusses 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. DSR switching systems utilize UTP cabling.
system depends on high quality connections. Poor quality or poorly installed or maintained cabling
can diminish DSR system performance. DSR switching systems utilize UTP cabling.
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 DSR
switch supports:
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.
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.
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.
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. Table D.1
describes the standards for each pin.
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. Table D.1
describes the standards for each pin.
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
7
white/brown
white/brown
8
brown
brown