MultiCam Boards Documentation > DOMINO series Documentation > DOMINO Iota Handbook > Image Processing > Frame Grabber Operation > Camera Connection > Horizontal and Vertical References

Horizontal and Vertical References

Horizontal and Vertical Reference Connectors Location

When the digital synchronization is used, the camera channel generates a horizontal and vertical reference signal on individual digital lines. The video signal is synchronized with these signals.

HD15F connector locations for the horizontal and vertical reference paths

Horizontal Reference

Single-Ended

Differential

Constitutive Signals

Pin

Constitutive Signals

Pin

Horizontal Sense X

HIO

14

HIO

14

GND

13

GATE

15

Vertical Sense X

VIO

4

VIO

4

GND

13

EXP

5

TTL Input/Output (Default Setting)

This configuration is used to control HIO and VIO signals as 2 TTL I/O lines. The direction and polarity of these two signals is determined through relevant MultiCam parameters.

The MultiCam parameter JumperH and JumperV are set to TTL and the electrical equivalent schematics is:

DominoEqSchCameraCtrlInputLine

Equivalent schematics for TTL

Non-Inverted Differential Horizontal Reference

This configuration is used to control HIO and VIO pins as a single non-inverted differential input line.

The positive line is connected to the HIO and VIO pin and the negative line is connected to the GATE and EXP pin.

The MultiCam parameter JumperH and JumperV are set to DPOS and the electrical equivalent schematics is:

DominoEqSchCameraCtrlDiffInputLine

Equivalent schematics for DPOS

Inverted Differential Horizontal Reference

This configuration is used to control HIO and VIO pins as a single inverted differential input line.

The positive line is connected to the GATE and EXP pin and the negative line is connected to the HIO and VIO pin.

The MultiCam parameter JumperH and JumperV are set to DNEG and the electrical equivalent schematics is:

DominoEqSchCameraCtrlDiffCrossedInputLine

Equivalent schematics for DNEG