Shutter
The shutter assembly is a commercial unit although customized for our application.
The
supplied documentation therefore only approximates what we have, although it is probably a complete description of the control interface.
The serial connection is not needed for our application; only the TTL input will be used.
One of the camera control boxes ("MASTER") has a shutter control BNC connector. Internally this connects to a shutter control TTL signal on a newly supplied power board from Leach. This BNC drives the active low shutter open input on the Sci-In Tech controller (i.e. a TTL-LO will open the shutter and a TTL-HI will close it).
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DavidHale - 18 Jul 2008