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MTP R 15HD RSA D • Introduction
Introduction
MTP R 15HD RSA D • Introduction
1-2
1-3
RS-232 function
When the audio/RS-232 portion of the TP link is RS-232, it is
either unidirectional or bidirectional, selectable by a DIP switch.
N
By default, the RS-232 portion of the TP link is
unidirectional only from the transmitter to the receiver.
If there is only one receiver in the system, you can set
it to be bidirectional. When bidirectional is selected,
the receiver can receive commands from the transmitter
and pass RS-232 responses back to the transmitter. See
the BI-RS232 DIP switch description in "Rear panel
features", on page 2-7, to allow bidirectional RS-232
communications.
The RS-232 link:
• Supports software ow control (XON, XOFF).
N
Hardware flow control is not supported.
• Supports full duplex and half duplex operation.
• Supports any baud rate (up to 38,400), data bits, parity,
stop bits, and data format without conguration.
N
Higher rates are possible, but performance varies as a
function of baud rate and TP cable length.
Twisted Pair (TP) Cable Advantages
Twisted pair cable is much smaller, lighter, more exible, and
less expensive than coaxial cable. These TP products make cable
runs simpler and less cumbersome. Termination of the cable
with RJ-45 connectors is simple, quick, and economical.
Transmission distance
N
VGA video transmitters provide pre-peaking, which
boosts the signal before it is transmitted.
The maximum distance is determined by the frequency and
resolution of the signal that is input to the transmitter. The
table on the next page species the recommended maximum
transmission distances and transmitter Pre-Peak switch
positions (refer to the applicable transmitter manual) using
Extron Enhanced Skew-Free A/V UTP cable or UTP CAT 5, 5e,
or 6 cable, terminated with RJ-45 connectors.
N
It is possible to exceed the recommended distance;
however, image quality may be reduced.
N
Resolutions marked with an asterisk (*) in the table on
the next page have the same range specifications at 75 Hz.
About the MTP 15HD Decora
®
Receiver
The Extron MTP R 15HD RSA D is a mini twisted pair (MTP)
receiver, in a Decora form factor, that auto-detects between
audio or RS-232 serial data on the audio/RS-232 wire pair. The
receiver is compatible with the entire line of Extron MTP 15HD
transmitters and associated MTP products.
The Extron MTP transmitters and receivers comprise a system
for long-distance distribution of VGA or other high resolution
video and either audio or RS-232 communications.
The MTPs transmit and receive over Extron’s Enhanced
Skew-Free A/V UTP cable or over CAT 5, 5e, or 6 shielded
twisted pair (STP), unshielded twisted pair (UTP), or foil
shielded twisted pair (FTP) cable.
A compatible MTP transmitter inputs high or low resolution
video signals (RGB, tri-level and bi-level component video,
S-video, or composite video) and a wire pair that is either
RS-232 serial signals or stereo audio. If the audio/RS-232 input
is audio, the transmitter sums the left and right audio channels
to convert the audio to mono (L+R) format. The transmitter
converts the inputs to a proprietary signal and outputs that
signal on an RJ-45 connector.
The MTP receiver inputs the transmitted proprietary signal on
an RJ-45 connector, converts the video portion of the signal back
into its original resolution, and outputs it locally on a 15-pin HD
connector. Level and peaking controls allow you to enhance the
video output for optimum display.
The receiver also detects whether the input on the audio/
RS-232 wire pair is audio or serial data, converts it back to the
appropriate format, and outputs the signal on a 5-pin captive
screw connector.
The receiver is shipped with an external 12 V power supply
that accepts 100 to 240 VAC, 50 Hz or 60 Hz input and provides
worldwide power compatibility.