Quickmedia Transport System - Crestron Isys i/O TPMC-15-CH Operation Manual

Touchpanel Media Centers
QM Network Topology with TPMC-15/17-QM Acting as an Endpoint and a Transmitter
Origination Points
QM
QM-WMC
QM
QM-WMC
24 Touchpanel Media Centers: Crestron Isys i/O™ TPMC-15/17 Tilt Series
The TPMC-15/17-QM is not a switcher, but a transmitter/endpoint. Therefore, even
when designated as the endpoint from two midpoint switchers, the QM output of the
TPMC-15/17-QM can become another transmitter sending RGB video at the
touchpanel's native resolution and aspect ratio. Refer to the following diagram.
Midpoints
QM
QM-MD7x2 QM-MD7x2

QuickMedia Transport System

Using a proprietary signal routing solution, signals such as composite video, S-video,
RGBHV, audios, and microphone, are all transported using a single cable solution
called QuickMedia (QM).
The QM transport system port is capable of managing computer, video, and audio
signals simultaneously through one CAT5E or CAT6 UTP (unshielded twisted pair)
wire, simplifying installations.
Routing CAT5E or CAT6 UTP cable is less expensive and much simpler than
routing multi-colored, multi-conductor coax cable. All Crestron products using the
QM transport system are capable of sending and receiving QM signals via standard
CAT5E or CAT6 cable. Installation of any QM device is as simple as installing one
set of QM wires from output to input. Installations are flexible, affordable, and fast.
The Crestron QuickMedia cable "CRESCAT-QM" contains one CAT5E cable and
®
one Cresnet cable in siamese jackets.
NOTE: Do not untwist the two wires in a single pair for more than 1/3-1/2"
(0.84 – 1.27 cm) when making a connection. The twists are critical to canceling out
interference between the wires.
CRESCAT-QM Cable
The QuickMedia transport mechanism performs delay compensation on each video
input to compensate for signal skew, and frequency/bandwidth compensation for
cable length. Signal skew occurs when part of the signal is delayed with respect to
other signal components. The amount of skew largely depends on the length and
™
Crestron Isys i/O
QM
TPMC-15/17-QM
This TPMC-15/17-QM
acts as both an
endpoint for signals
from the QM-WMC
origination points
AND a QM transmitter
to the QM-RMCRX.
TPMC-15/17 Tilt Series
Endpoints
QM
QM-RMCRX
This QM-RMCRX
does not violate the
two-midpoint rule as it
is receiving an RGB
signal from the
TPMC-15/17-QM
transmitter.
Operations Guide - DOC. 6344