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Synchronization | Spectrum

While synchronization in one card series is easy as all base cards use the same clock and trigger circuits a synchronization of different card series needs some examination of output and input levels to judge whether this works. This article describes the synchronization of one or multiple M2i cards with one or multiple M4i cards.

The Star-Hub modules allow the synchronization of up to 8 M4i cards in one system. The synchronization option was designed for system setup with a minimum phase delay and phase skew between channels.

Find the exact height measuring for the M4i star-hub TM (top-mount) version to judge whether you can put this into your system or need the EX (extension version)

Combining the information of acquisition starting time (stored by the driver), reference clock signal count and timestamp sampling clock count, one get's a very precise absolute time information when the trigger signal has been received. This information can be used to synchronize acquisitions that has been done on different locations (like power line failures spread across the country) or the acquisition can be taken into relation to external events.