57
APPENDIX A: Cable Pinning/Pairing
Appendix A: Cable Pinning/Pairing
The cable you will use to interconnect the Local and Remote Units of your
ServSwitch™ Brand CAT5 KVM Micro Extender should be terminated with RJ-45
plugs and should be wired according to the EIA/TIA-568 standard (preferably
568B rather than 568A). See
Section 4.2.5
for a more complete set of cable
recommendations.
Looking into the interconnect socket on either Micro Extender Unit, or looking
at the cable plug from behind, Pin 1 should be on the left and Pin 8 on the right,
and the wires should be arranged this way:
Pin
Color
Function, Pair
1
White/Orange
TX, Pair 2
2
Orange/White
RX, Pair 2
3
White/Green
TX, Pair 3
4
Blue/White
RX, Pair 1
5
White/Blue
TX, Pair 1
6
Green/White
RX, Pair 3
7
White/Brown
TX, Pair 4
8
Brown/White
RX, Pair 4
NOTES
The Micro Extender has been tested with all major makes of CAT5 cable
including Black Box, Berk-Tek™, Mohawk
®
, and AT&T
®
. The Extender
has also been tested and found to work,
in certain situations
, with 4-pair
Category 3 cable or with four pairs of 25-pair UTP trunk cables instead
of 4-pair Category 5 cable. But we do
not
recommend such installations;
if you want to experiment with them, do so at your own risk.
We don’t normally recommend using CAT5e cable (rated for up to
155 Mbps), although our EYN795MS cable has performed well in testing.
Avoid
using cables rated “Level 6,” “Level 7,” etc. If you have problems
getting a good picture with CAT5e cable, or if you
must
use cables with
bandwidths higher than 155 Mbps, please contact tech support; the
signal-skew problems caused by tightly twisted pairs in these cables can
sometimes be resolved by swapping which pairs are used for which signals
or by using an external delay line.
