Our first product, ColorMax, was a proprietary protocol and included a controller, but the industry wanted to work with the lighting console. Next, our products were made with an industry standard, analog 0 to 10V. This worked fine as far as interfacing to consoles, but the noise and drift and inaccuracies of the analog protocol were still problems.
DMX512 suddenly made our market bigger because we could work with nearly any controller. The digital protocol eliminated some of the prob