ILDA Laser pinout

13/01/2017

The chart below lists pins for the ILDA DB-25F female connector. This connector conforms to the ILDA DB-25 connector standard. The ILDA standard uses differential signals for projector inputs, primarily because they are more immune to noise. For example, you will see X+ and X- signals defined below. The positive indicates a normal signal; the negative indicates an inverted signal. Projectors also use differential signals for color signals as well, but generally outputs only single-ended OUTPUT signals for colors. This is allowed by the ILDA Standard.

db25f ILDA pin-out

ILDA DB25 connector

Signal name

Pin

Notes
X+1 -5V to +5V
Y+2 -5V to +5V
Intensity/Blanking +3 0V to +2.5V
Interlock A4Connected to pin 17 inside the QM2000
R+5Red, 0V to +5V
G+6Green, 0V to +5V
B+7Blue (typically 476 nm), 0V to +5V
Deep blue +8Violet (typically 457 nm), 0V to +5V
Yellow +9Yellow, 0V to +5V
Cyan +10Brightest blue (usually 488 nm cyan), 0V to +5V
Z+11Depth Z (not intensity), -5V to +5V
Not connected12 
Shutter13 0V to +5V (referenced to Ground pin 25)
X-14 -5V to +5V
Y-15 -5V to +5V
Intensity/Blanking -16Connected to Ground pin 25
Interlock B17Connected to pin 4 inside the QM2000
R-18Connected to Ground pin 25
G-19Connected to Ground pin 25
B-20Connected to Ground pin 25
Deep blue -21Connected to Ground pin 25
Yellow -22Connected to Ground pin 25
Cyan -23Connected to Ground pin 25
Z-24 -5 to +5V
Ground25 

Note on interlock lines A and B

The purpose of the two interlock lines is so that a projector can tell when it is properly connected to an ILDA-compatible signal source. The projector will put a current or signal into pin 4. The same current or signal should be present back at the projector when reading pin 17.

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