External Sync In
Posted: Fri Oct 05, 2012 10:03 am
Hello,
We are trying to trigger recording in Arena with an external analog rising-edge signal sent from a DAQ board. We are currently using a 5v signal but we can modify this as needed. We have plugged the BNC into the External Sync In port on the proper OptiHub, and have verified that the signal is getting sent through the cable, but we are not getting any events triggered in Arena. We have noticed strange occurrences that may all be related.
We set the Source to Sync In in the Synchronization dialog. If we then hit Apply, and stop then start streaming, all camera numbers turn to 1 and "HW Sync Off" is displayed in red at the top of the screen. If we revert the Source back to Internal/Wired, the system returns to normal operation.
Additionally, When we plug the analog signal into the OptiHub, instead of reading 5v as it should, it reads closer to 4.5v and shows exponential decreasing behavior.
Also, the hub that is listed in the Synchronization dialog (we have 4 hubs, 24 cameras) is different from the one we have been able to use for getting an analog out signal. We have gotten the analog out signal to work, but now we want to run things the other way.
We are trying to trigger recording in Arena with an external analog rising-edge signal sent from a DAQ board. We are currently using a 5v signal but we can modify this as needed. We have plugged the BNC into the External Sync In port on the proper OptiHub, and have verified that the signal is getting sent through the cable, but we are not getting any events triggered in Arena. We have noticed strange occurrences that may all be related.
We set the Source to Sync In in the Synchronization dialog. If we then hit Apply, and stop then start streaming, all camera numbers turn to 1 and "HW Sync Off" is displayed in red at the top of the screen. If we revert the Source back to Internal/Wired, the system returns to normal operation.
Additionally, When we plug the analog signal into the OptiHub, instead of reading 5v as it should, it reads closer to 4.5v and shows exponential decreasing behavior.
Also, the hub that is listed in the Synchronization dialog (we have 4 hubs, 24 cameras) is different from the one we have been able to use for getting an analog out signal. We have gotten the analog out signal to work, but now we want to run things the other way.