Pinout diagram for SR box

[David McFarlane]

Joel,

1) Because of your custom hardware, PST Web Support will almost 
certainly do you no good in this case (see #3 below).

2) The pin numbers that you refer to (from my earlier post) 
themselves refer to pins on a 40-pin header inside the SRBox, not 
pins on the computer.  So of course those pin numbers are irrelevant 
to you.  They apply only when you connect external switches to the 
SRBox, then connect the SRBox to the computer, i.e., using the SRBox 
as an interface to translate simple digital on-off signals into serial data.

3) If your custom device does indeed "function like an SR box", then 
you would need nothing more than a serial cable and treating it like 
a regular SRBox in E-Prime.  But I highly doubt that you 
meant  "function like an SR box", your department's electronic 
workshop almost certainly instead made a voice key device that 
provides a simple digital on-off signal.  In that case, you may 
either (a) patch it through an SRBox as described earlier, or (b) 
connect it directly to an available digital I/O port (e.g., an 
old-fashioned parallel printer port); in this case you would then 
treat it as a Port device in E-Prime, and for that you could look up 
the appropriate topics in the Guides, the online E-Basic Help, and 
the PST Knowledge Base, or in this case contact PST Web Support.

Hope that clarifies matters a bit,
-- David McFarlane, Professional Faultfinder


>I am a grad student and new E-Prime user. I am using E-prime to
>present auditory stimuli, to which participants need to provide a
>verbal response. I want to record their responses, and also get a
>voice RT.
>
>I have constructed the experiment in E-prime, and just worked out that
>to get a voice RT, I need to have an SR box, or something like it.
>
>My department's electronic workshop already has a device (that they
>made for a previous experiment) that will function like an SR box to
>get the voice RTs. They just need to know which pins to wire it for so
>that E-Prime will recognize it. My electronics knowledge is very
>limited.
>
>I have tried to find a pinout diagram on line, without any success. I
>have trawled through this group, and have found posts like:
>http://groups.google.com/group/e-prime/browse_thread/thread/d42447cfc9a061af/f4d681564452d0b5?lnk=gst&q=pin+out#f4d681564452d0b5
>by David McFarlane, but the pin information contained therein didn't
>seem (to my naive electronics mind) to be what I need. Why do I say
>that? Because in that post it referred to pins with numbers greater
>than 25, and from what I understand, the SR box uses a RS232 DB25
>pinout.
>
>I have emailed PST asking for a copy of the SR Box manual, but they
>seem to have delays because they are experiencing a large volume of
>requests.
>
>Any assistance/advice/pointers would be appreciated.
>
>Regards
>
>Joel

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