MultiCam Boards Documentation > GRABLINK series Documentation > GRABLINK Full Handbook > Functional Specification > I/O Operation > Input Ports > Trigger Input

Trigger Input

For applications using a hardware acquisition trigger, anyone of the system I/O input ports can be selected as the source for the trigger control circuit of the acquisition channel.

For that usage, use the parameters belonging to the Trigger Control category.

The trigger source signal can originate from the following type of devices:

The selection of the port is primarily based on the electrical style of the sensor device used as trigger source.

Possible ports assignments

Sourcing device type

Default port(s) assignment

Alternate port assignment(s)

RS-422 compatible detector

High-speed diff. input #2

High-speed diff. input #1

Other detectors

Isolated input #2

Isolated input #1
Isolated input #3
Isolated input #4

The default port assignment for both electrical styles is different than the one of the line trigger (at least when a single signal is used).