User guide
Front Panel Operation
The MPS switcher can be connected to as many as nine input devices and four output 
displays plus an audio amplifier. It operates in one of four switching modes: single (the 
default), separate, single-combine, or separate-combine. 
The functions of the front panel controls are described in the following sections. Each input 
group; VGA/YUV, DVI-D, HDMI, and composite, have one video and one audio output each. 
The output is switchable only between the inputs of the corresponding group, except in 
combine mode.
Although the wiring and connection of the switcher are identical, the four modes operate 
differently.
Switcher Operating Modes
The switcher operating modes are: 
•  Single switcher (default) mode emulates one switcher with 9 inputs (9x1). 
•  Separate switcher mode allows the four groups of inputs (DVI, HDMI, VGA, Composite 
video) to be used as individual switches, creating four independent switchers. 
•  Single-combine mode operates exactly as the normal single mode except the three 
HDMI and two DVI inputs are output on the HDMI output.
•  Separate-combine mode operates exactly as the normal separate mode except the three 
HDMI and two DVI inputs are output on the HDMI output. 
NOTE:  The switcher does not convert signal formats between VGA and DVI/HDMI 
nor will it scale or convert between other input formats. 
View Mode
The current switcher mode can be determined by observing the input LEDs. If the unit is 
in separate switcher mode, up to four input LEDs can be lit (one in each group). In single 
switcher mode only one input LED at a time is lit.
To view the current switcher mode, press and hold the Mode button (VGA/YUV #1) for more 
than 3 seconds. 
1
MODE
2
SINGLE
1
SEPARATE
2
COMBINE DVI/HDMI
1
2
1
2
3
MUTE
MPS 409
DIGITAL MEDIA PRESENTATION SWITCHER
MUTE
VIDEO INPUTSHDMI INPUTS
MIC PROGRAM AUDIO
DVI INPUTSVGA/YUV INPUTS
CONFIG
EXEC
MODE
Press & Hold
for 3 seconds
LED Lit:
Combine 
Mode
LED Lit:
Single 
Mode
LED Lit:
Separate 
Mode
NOTE:  Switcher is shown in 
single-combined mode.
Figure 12. Front Panel Button/LED Functions During View Mode
To change modes: 
1.  Press and hold the mode button for more than 3 seconds, 
2.  Press the button that corresponds to the desired mode change, 
3.  Release all buttons. 
NOTE:  Mode changes do not take effect until the Mode button is released. 
MPS 409 • Operation 12










