I have an RST-564 Audio Panel to give away (all original manuals).
Just recently upgraded to a fancier PMA4000 unit after some noise
issues. I had the RST-564 working for 3 years. Tried to sell it on
eBay with no takers so I'd rather give it away than trash it. Prefer
somebody with decent electronics experience who will have a good
chance getting it going, rather than somebody who just wants something
free. I recently converted the pig tail connectors to DB25, DB9 and
that will have to be checked out. You pay shipping ($10?) You can find
my contact at http://www.abri.com/sq2000/