Ok well here is the "Control Port Connections and Conventions" appendix from the manual (in it's entirety!)


The SBIG relay port (AO/CFW/Scope Port) controls the motors in the DSS-7. The “X”
relays control the grating and the “Y” relays the slit. Commanding a relay for 0.2
seconds is sufficient to change the slit or grating position. The controls are as follows:
+X relay: rotates grating to clockwise limit
-X relay: rotates grating to counterclockwise limit
+Y relay: rotates slit in (visible through entrance port)
-Y relay: rotates slit out of way
Almost 0.5 ampere is drawn from the battery during actuation, so if you write your own
control software keep the relay times short to avoid exhaustng the battery.

So, since the SBIG driver header includes several AOs and CFWs, which presumably use the same relay port, so it should be pretty easy to modify those controls for the DSS-7?

If this is enough (like, I guess if you know what the "X relay control" and the "Y relay control" are on the AO/SFW relay port), I can open up my device and tell you exactly what the configuration should be. There are basically a set of three configurations of those (X,Y) positions we need, I just don't know exactly what they are without looking inside the box.

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