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MLC 52 MediaLink Controllers • Introduction 27
MLC 52 MediaLink Controllers • Installation and Configuration
27
MLC 52 MediaLink Controllers • Operation 27
Operation
This section describes the front panel features of the MLC 52 models and provides
procedures for operating the controllers. Topics include:
• Front Panel Features
• Selecting Inputs
• Resetting
• Locking the Front Panel (Executive Mode)
Front Panel Features
The MLC 52 front panel contains six buttons, each of which can be programmed with up
to four IR or RS-232 commands or functions.
Buttons on the Front Panel
The front panel backlit buttons light amber when the MLC 52 is powered on. Buttons that
are not currently selected and active are lit more dimly (25% brightness) than the selected
ones (100% brightness).
You can program commands onto these buttons (up to four commands per button) using
IR Learning (see Configuring Using IR Learning on page 18, the MLC 52 configuration
software via the configuration port, or IR data transfer from a configured MLC 52 (see
Configuring Using IR Data Transfer [IR Beaming] on page 15).
Switch modes
Depending on the driver that you load to your MLC (see Loading Extron Drivers on
page 52), each of the buttons is preconfigured in one of the following switch modes:
• Single switch mode: In this mode, the button operates independently of the
other buttons. Pressing a button in this mode does not affect any other button.
• Input switch mode: Buttons in this mode are grouped together so that only one
of them can be active at a time. When one button is activated, it becomes fully
lit, while the other (inactive) buttons are dimmed to 25% brightness. When you
press one of the buttons in input mode, all other buttons in input mode become
inactive.
• Volume mode: This mode is available only on the standard (not VC) MLC
models, and only for the two buttons that are labeled Vol
>
and Vol
<
. When an
RS-232 driver that contains a volume table is part of the configuration, pressing a
button in volume mode accesses the volume table of the driver. Press and hold
the appropriate button to raise or lower the volume of the projector or display by
the amount specified in the volume table. When the MLC is in volume mode, the
button labeled Vol
>
always increases the volume; Vol
<
lowers it.
NOTE: If the driver for your display device contains a volume table, a single
press of the volume button has no effect. You must press and hold the
button to increase or decrease the volume.