QuickMedia™ Matrix Switcher/Mixer
Crestron
QM-MD7x2
QM-MD7x2, Slot 1 Analog Input Signal Descriptions (continued)
INPUT DESCRIPTION
QMLinkBoostToSave
Sets the boost that will be saved to the preset given
by
QMLinkPreset#ToSave
when
SaveQMLinkPreset
is held high.
Boost improves the transmission of the encoded
audio signal over cable lengths up to 300 feet.
Valid boost values range from 0% to 100%,
adjustable in 1% increments. Boost is also
programmable using DMT Software.
The following table lists recommended peak/boost
values for various cable lengths.
Cable
Length
(ft)
Recommended
Peak Value
(%)
Recommended
Boost Value
(%)
0
0%
20%
50
5%
23%
100
10%
25%
150
15%
28%
200
20%
30%
250
25%
33%
300
30%
35%
QMLinkPreset#ToSave
Sets the preset number where the peaking and
boost values given by
QMLinkPeakToSave
and
QMLinkBoostToSave
will be saved.
The peaking and boost are saved when
SaveQMLinkPreset
is held high.
Valid analog values range from 1d to 100d. Out-of-
range values are ignored.
QMLink6Preset# and
QMLink7Preset#
Sets the preset number that will be recalled when
RecallQMLink6Preset
or
RecallQMLink7Preset
are held high. The MD7x2 features 100 presets that
are shared by the two signals.
The peaking and boost values are applied to QM IN
6 and/or QM IN 7.
Valid analog values range from 1d to 100d. Out-of-
range values are ignored. If no preset numbers are
specified, QM IN 6 will recall preset 1 and QM IN 7
will recall preset 2 when the MD7x2 is rebooted.
VideoInpSelect1 and
VideoInpSelect2
Select the video source to be switched to the
indicated QM output. Valid analog values range from
0 (for no source) through 7. Out-of-range values are
ignored.
Thus to route a video source from RGB 4 to QM Out
2, initialize
VideoInpSelect2
to 4d.
AudioInpSelect1 and
AudioOut2
Selects the audio source to be switched to the
program audio portion of the indicated QM output.
Valid analog values range from 0 (for no source)
through 7. Out-of-range values are ignored.
Thus to route an audio source from AUD 4 to QM
Out 2, initialize
AudioInpSelect2
to 4d.
(continued on next page)
30
•
QuickMedia™ Matrix Switcher/Mixer: QM-MD7x2
Operations Guide - DOC. 6273