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Logical Systems (former Carmike Cinema back office entity)

2021-10-07 by: Sean Brewer
From: Sean Brewer 
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I acquired some LED movie theater signs from one of the old Carmike Cinemas
recently. Logical Systems, who put Carmike's theater business tech on Linux
(in the mid-90's!), is now defunct. I cannot find any information on
communicating with these signs at all. It looks like they might be
programmed over rs232 and an rj11 cable. I'd rather figure out how to work
with these things the easy way before I dump memory from EPROMs and stuff
like that. Anyone know anyone who worked there or would have possibly
worked with these signs?