Extron electronic MTP 4T 15HD RS - Manual (Page 12)

MTP 4T 15HD RS • Installation and Operation
Installation and Operation, cont’d
2-8 MTP 4T 15HD RS • Installation and Operation 2-9
Receiver considerations
N Each transmitter in the assembly requires a separate
receiver.
N The receivers' buffered outputs do not provide pre-
peaking control. The total recommended distance for an
entire daisy chain is the same as for a single transmitter
and receiver. The transmitter's Pre-Peak switch has the
same affect on the recommended transmission distance
for a daisy chain as for a single transmitter and receiver.
N Up to 8 receivers can be connected in series to a
transmitter using the receivers' Buffered Output
connectors, provided that the total distance from the
transmitter’s TP output to the last receiver in the
chain does not exceed the recommended distance for the
resolution being used.
N See the recommended transmission ranges in the table
on page 1-4. The recommendations in the table apply
equally for a single transmitter and receiver and for a
transmission daisy chain. For example, the maximum
suggested range for 1024 x 768 video is 300’ with
Pre-Peak off and 500’ with Pre-Peak on for either one
transmitter and one receiver or a transmitter and three
daisy-chained receivers.
N For daisy-chained units, the first receiver in the chain
must be at least 100’ from the transmitter when the Pre-
Peak switch is on.
N For daisy-chained units, any receiver in the chain closer
than 350’ may experience some form of over-peaking
when the Pre-Peak switch is on.
N If a receiver is the last receiver in a daisy chain, its end
unit DIP switch setting needs to be changed. Refer to
the MTP 15HD RS Series manual.
Front Panel Controls and Indicators
Figure 2-6 shows the front panel of the MTP 4T 15HD RS and its
power LED.
1
Figure 2-6 — MTP 4T transmitter front panel
a
Power LED — Indicates power is applied to the
MTP 4T 15HD RS.
Skew Delay Compensation
CAT 5/5e/6 TP cable can lead to registration errors between the
red, green, and blue video signals. Pair skew can be measured
with test equipment or identified by viewing a crosshatch test
pattern with a critical eye to determine if either the red, green,
or blue video image leads (appears to the left of) the other two
video images.
N Unless the TP cable is changed, the skew adjustment
should only need to be made once, during installation.
SEQ receiver skew compensation
The MTP 15HD RS SEQ receiver has built-in skew compensation
capabilities. Refer to the MTP 15HD RS Series manual for details.
Non-SEQ receiver skew compensation
Try using the following methods to minimize or eliminate pair
skew:
• Switch to Extron’s Enhanced Skew-Free A/V UTP cable.
• Add a skew compensation cable equal to the length of
pair skew to the receiver’s output.
• Install an SEQ 100 15HD Skew Equalizer on the receiver’s
video output and adjust the skew for the leading video
image.