Gefen 4x1 DVI Switcher - Manual (Page 9)

5
FRONT PANEL DESCRIPTIONS
1 Input Indicators (1 - 4)
Each of these LED indicators glows bright blue according to the current DVI
input selection (see Input Buttons, below)
2 IR
Receives IR signals from the included IR Remote Control Unit.
3 Input Buttons (1 - 4)
Pressing each of these buttons selects the desired DVI input source (1 - 4).
4 Power
This LED indicator will glow bright red when the unit is powered..