Setup guide

Refer also to the MTPX Plus User’s Manual at www.extron.com.
Refer also to the MTPX Plus User’s Manual at www.extron.com.
Twisted Pair (TP) Cable Transmission Distance
C
Do not connect this device to a computer data or
telecommunications network.
The maximum distance is determined by the frequency and
resolution of the signal that is input to the transmitter or to one
of the matrix switcher’s local inputs. The table below species
the recommended maximum transmission distances using
Extron Enhanced Skew-Free A/V UTP cable or UTP CAT 5, 5e,
or 6 cable, terminated with RJ-45 connectors.
Recommended transmission distances at 60 Hz
Composite,
S-video,
Component
640 x 480
800 x 600
1024 x 768
1280 x 1024
1600 x 1200
Video
format
700'
(215 m)
550'
(165 m)
500'
(150 m)
600'
(185 m)
450'
(135 m)
550'
(168 m)
350'
(100 m)
450'
(135 m)
300'
(90 m)
450'
(135 m)
MTPX input
For any transmission distances above 350' (100 m), turn on the transmitting
device’s (MTP transmitter or MTPX Plus) pre-peak function. See the
MTP Transmitter/Receiver User’s Manual and/or the Output pre-peaking
SIS commands on pa
ge 4-8.
High quality transmission
maximum distance
MTPX output
750'
(230 m)
750'
(230 m)
550'
(168 m)
700'
(215 m)
600'
(185 m)
550'
(168 m)
450'
(135 m)
450'
(135 m)
MTPX input
700'
(215 m)
600'
(185 m)
500'
(150 m)
450'
(135 m)
350'
(100 m)
300'
(90 m)
MTPX output
Variable quality transmission
maximum distance
N
The minimum TP cable length should be 50' (15m).
N
It is possible to exceed the recommended distance; however,
image quality may be reduced.
N
The MTPX output can be extended by 50 feet (15 m) for
those outputs that have a Pre-Peak feature that is turned on.
N
The transmitters, receivers, and matrix switcher are
designed for and perform best with Extron Enhanced
Skew-Free A/V cable terminated in accordance with
the TIA/EIA T 568 A wiring standard. CAT 5, 5e,
and 6 cables are acceptable, but less preferable. We also
recommend the use of preterminated and tested cables.
Cables terminated on site should be tested before use to
ensure that they comply with Category 5 specifications.
N
The recommendations shown on the preceeding page
apply equally for a transmission line consisting of a
single transmitter, the switcher, and receiver; and for a
transmision line that encompass a transmission daisy
chain. For example, the maximum suggested range for
1024 x 768 video output by the switcher is 550’ (168 m)
with Pre-Peak on whether the transmission line consists
of the transmitter, switcher, and a single receiver or
a transmitter, the switcher, and three daisy-chained
receivers.
N
For daisy-chained units, the first receiver in the chain
should be at least 50’ (15 m) from the switcher when the
Pre-Peak feature is on.
N
For daisy-chained units, any receiver in the chain closer
than 350’ (105 m) may experience some form of over-
peaking when the Pre-Peak switch is on.
TP Skew Equalization
Skew exists between wire pairs when the physical length of one
wire pair is different from another. Skew affects the displayed
image when the differential length between wire pairs exceeds
2 feet, causing the timing of the red, green, and blue video
signals to appear out of alignment (horizontal registration
errors). The signals transmitted on the shortest pair are shifted
to the left if you are using white lines on a black background.
A white vertical line on a black eld can appear as individual
red, green, and blue lines that are close together; the signal
transmitted on the shortest wire pair leads the other colors and
appears to the left on the display. As the transmission cable
length increases, the skew effect increases.
The MTPX Plus's input and output skew equalizer functions
provide separate time delay circuits on the red, green, and blue
video lines. This allows you to properly align the red, green,
and blue video signals on the displayed image. When correctly
set, the red, green, or blue video signal on the shortest wire pair
is delayed to properly converge the displayed video image.
UTP cable test equipment measures and reports wire pair
length. The report on the various pair lengths can be used to
properly equalize pair skew. If UTP cable test measurement
cannot be done, pair skew can still be equalized by viewing a
crosshatch test pattern with a critical eye.
MTPX Plus • Introduction
Introduction, cont’d
1-4
MTPX Plus • Introduction
1-5