KRAMER: SIMPLE CREATIVE TECHNOLOGY
Overview
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3.1 About the Power Connect Feature
The Power Connect feature applies as long as the cable can carry power. The
distance does not exceed 50 meters on standard CAT5 cable, for longer
distances, heavy gauge cable should be used
1
.
For a CAT5 cable exceeding a distance of 50 meters, separate power supplies
should be connected to the transmitter and to the receiver simultaneously.
3.2 Shielded Twisted Pair (STP) / Unshielded Twisted Pair (UTP)
The decision whether to use shielded twisted pair (STP) cable or unshielded
twisted pair (UTP) cable depends on the nature of the application.
It is recommended that in applications with high interference, shielded twisted
pair (STP) cable is used. However, the shield itself does create a capacitance
that degrades the frequency response of the machines. For shorter distances,
of 50m or so, shielded twisted pair (STP) cable is preferred because it
provides protection from interference (degradation is not apparent).
For a long range applications, unshielded twisted pair (UTP) cable is
preferred. However, the unshielded twisted pair (UTP) cable should be
installed far away from electric cables, motors and so on, which are prone to
create electrical interference.
1 CAT5 cable is still suitable for the video/audio transmission, but not for feeding the power at these distances
