Multiboard Usage
In case of multiboard usage, the frame grabber(s) are connected to the Opto trigger board(s) by a specific 34-pin flat cable (see Notes below). The signals of this cable use open collector drivers.
This allows to either
- use several Opto trigger boards (and TLL trigger boards) at the same time (inputs are wired-ORed), or
- use the same Opto trigger board with several frame grabbers (outputs are wired-ORed).
Using one Opto trigger board for several frame grabbers makes synchronizing the frame grabbers most easy. By sharing the trigger input lines of the Opto trigger board, all frame grabbers in the PC are accurately synchronized.There is no limit how many frame grabbers can be connected to one Opto trigger board. However, all connected frame grabbers must be seated in the same PC. Commonly, the Opto trigger board supports all frame grabbers in one PC.
The scheme described above is useful if the acquisition is controlled by an external generator. However, there are applications where no external source is available or desired. In this cases, a master frame grabber needs to synchronize all its slave frame grabbers.
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Before installing hardware, ensure that
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Important Notes |
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