Overview
3
3 Overview
Kramer’s new “od” (Overvoltage Defense) family of twisted pair transmitters
and receivers for computer graphics video now includes electromagnetic
pulse (EMP) protection. The electro-magnetic pulse of nearby lightning
strikes can damage sensitive electronic equipment by inducing high
momentary surge voltages. Systems with outdoor runs of signal cable are
very susceptible to EMP damage. Our “od” family was especially designed to
protect twisted pair transmitter/receiver systems installed in areas of high
electrical storm activity.
Note, that the “od” family is designed for indoor installation and should
be suitably protected against direct lightning strikes
. The system does not
protect against direct lightning strikes and does not offer protection against
damage caused by lightning to peripheral devices that are connected to an “od
series” transmitter/receiver set.
This user manual describes the following lightning protected transmitter
receiver sets:
•
PT-110-od
/
TP-120-od
XGA Line Transmitter / Receiver
(see section
4
)
•
TP-121-od
/
TP-122-od
XGA / Audio Line Transmitter
/ Receiver
(see
section
5
)
•
TP-123-od
/ TP-124-od
XGA / Audio / Data Line Transmitter
/
Receiver
(see section
6
)
•
TP-125-od
/
TP-126-od
XGA / Audio / Data Line Transmitter
/
Receiver
(see section
7
)
This section describes:
•
Using shielded twisted pair (STP) / unshielded twisted pair (UTP), see
section
3.1
•
The power connect feature, see section
3.2
•
Defining EDID, see section
3.3
•
Recommendations for achieving the best performance, see section
3.4
3.1
Shielded Twisted Pair (STP) / Unshielded Twisted Pair (UTP)
We recommend that you use Shielded Twisted Pair (STP) cable. There are
different levels of STP cable available, and we advise you to use the best
quality STP cable that you can afford. Our non-skew-free cable, Kramer
BC-STP
is intended for analog signals where skewing is not an issue. For
cases where there is skewing, our UTP skew-free cable, Kramer
BC-XTP
,
may be used. Bear in mind, though, that we advise using STP cables where
possible, since the compliance to electromagnetic interference was tested
using those cables.
