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What was that light/siren system (plus others) that can be controlled by a laptop?

Specifically I'm thinking of and earlier siren system that you could run off the laptop. I believe it was Federal Signal related but not certain. I do not use or deal with sirens so I do not keep up with the ever changing advancements.

More interested in one that would do light controls so curious as to what other older systems can operate lights via laptop? I am not a computer person but think I have read about custom systems that connect via usb to control relay banks. Just exploring the idea for my home display to be PC controlled (at least partly).