Installation User guide

Software-based Confi guration and Control, cont’d
MLC 226 IP Series • Software-based Confi guration and Control
4-14
PRELIMINARY
Most projectors do not accept commands during warm up and cool down
periods. The next two settings in this area specify the amount of time (0 to 300
seconds in 2-second intervals) for the MLC to wait between issuing a projector
power-on or power-off command and when the next input button press can
occur. These delays can also be set using special SIS commands (see pages 5-34,
and 5-39 through 5-40).
Repeat IR power down — Select this setting to have the MLC send out infrared
power-off commands to the display or projector twice in a row instead of once.
The MLC must be confi gured to send the IR power off command upon display
power off button release (not at the button press).
Send channel IR/232 as display powers up — Select this setting to make the
MLC send out commands associated with the currently selected input button
while the projector or display is powering on. Using this setting ensures that the
MLC’s and the display device’s inputs are coordinated.
Lockout I/O switching while display powers On or Off — To prevent users from
changing inputs during the entire power-on or power-off period, select this
setting.
Hold power-down button
for two seconds — Select
this setting to require
users to press and hold the
Display Off button for two
seconds to start the display
power-down process.
This prevents users from
shutting down the display
or projector by accidentally
pressing the button.
Volume settings
When adjusting the volume, use — Volume control for a projector, display, or
audio output device involves one of two methods: selecting a setting within a
specifi c range of values, or sending a simple command to increase or decrease the
volume by a fi xed increment. Select the appropriate method for the equipment
you are using. Refer to the user’s manual for the display or audio device.
If you choose Range, you can set the maximum quantity of volume change
steps. You can also set the specifi c level the audio output should not exceed
when the projector/display is powered on.
N
The power-up volume limit is limited by the maximum volume setting (SIS
special command 47#). If the maximum volume (47# command) is set, the
limit audio level feature (SIS special command 11#) is automatically set to 25%
of the maximum volume (47#). See pages 5-34 and 5-39.
Volume encoder scaling factor (0-255) — This feature allows you to slow down
the volume knob (the encoder) on the MLC’s front panel. The value entered in
the encoder scale area is the encoder speed scaling factor. A value of 1 scales the
speed down by a factor of 2 (the MLC issues commands at 1/2 speed), a value of
2 scales by a factor of 3 (the MLC issues volume commands 1/3 speed), and so
forth. A factor of zero sets the MLC for no scaling: the volume encoder works at
full speed.