Specifications

Crestron Isys i/O
™
TPMC-15/17-L Series Touchpanel Media Centers
CresCAT-QM Cable
CresCAT-QM
Cable
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.
The aggregate cable length of a signal path originating at a QM transmitter and
terminating at the TPMC-15/17-L must not exceed 450 feet (137 meters). Video
signals may experience a loss of quality over very long lengths of cable. This
phenomenon is due to the added resistance and capacitance of longer cable lengths
and is not peculiar to either Crestron and/or QuickMedia systems. To ensure
sufficient bandwidth, the maximum aggregate cable length should not exceed 450
feet. The use of lower-resolution signals may allow increased cable length but must
be tested by the installer with the sources to be used. The QM pin assignment is
based on the EIA/TIA 568B RJ-45 Jack standard.
NOTE: QM IN 2 does not have delay skew compensation (as does QM IN 1), so
the maximum cable length varies based upon resolution and should not exceed 300
feet (90 meters) for standard definition video. Refer to the QM Input #2 Maximum
Cable Length table that follows.
QM Input # 2 Maximum Cable Length
SIGNAL TYPE RESOLUTION MAXIMUM CABLE
LENGTH* (FEET)
Video/S-video 480i 300
Component 480p 300
Component 720p 300
Component 1080i 300
RGB 1024 x 768 @ 75 Hz 69
RGB 1280 x 1024 @ 75 Hz 40
RGB 1600 x 1200 @ 60 Hz 30
RGB 640 x 480 @ 60 Hz 216
RGB 800 x 600 @ 60Hz 140
RGB 1024 x 768 @ 60Hz 84
RGB 1280 x 768 @ 60Hz 70
* With CresCAT-QM cable, available from Crestron. Using other may adversely affect performance and
is not recommended.
Operations Guide – DOC. 6354B Touchpanel Media Centers: Crestron Isys i/O™ TPMC-15/17-L Series • 23