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Crestron QM-FTCC FlipTop Computer Center
QM-FTCC Buttons – Signal Descriptions (continued)
SIGNAL TYPE AND NAME DESCRIPTION
Digital output:
<FlipTopOpen>
Indicates that the FlipTop cover is fully open. The
feedback remains high for as long as the cover is
open.
If the cover is not fully open the signal will go low,
the keypad buttons will be disabled and the unit
will not report any button presses.
High/1 = FlipTop open;
Low/0 = FlipTop not fully open
Analog input:
<Bargraph1>
Sets the levels that will be displayed on the left
bargraph. The bargraph is an 8-segment LED and
is proportional to the input.
Valid values range from 0% to 100%.
Analog input:
<Bargraph2>
Sets the levels that will be displayed on the right
bargraph. The bargraph is an 8-segment LED and
is proportional to the input.
Valid values range from 0% to 100%.
Example Program
An example program for the QM-FTCC is available from the “Example
Program” section of the Crestron website
(www.crestron.com/exampleprograms). Search for QM-FTCC.ZIP.
Adjusting the QM-FTCC Microphone Inputs
Once a QM-FTCC is installed and configured, settings for gain, gating level,
attack time, and decay time should be set using the SystemBuilder finish tab.
NOTE: Crestron recommends that you use the latest software to take advantage
of the most recently released features. The latest software is available from the
Crestron website.
Definitions
The QM-FTCC allows for adjustments to be made to microphone input signals.
The following are definitions of terms that are commonly used when making
adjustments.
Attack Time
The time it takes (in milliseconds) from when an input signal rises above the
gating level until the microphone output signal is enabled.
Clipping
A condition in which a signal level exceeds the maximum level (the clipping
level) a circuit can handle. This is usually caused by improper gating parameters
and gain settings.
Decay Time
The time (in milliseconds) from when an input signal falls below the gating
level until the microphone output signal is muted.
Operations & Installation Guide – DOC. 6313A FlipTop Computer Center: QM-FTCC • 41