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Electronic Theatre Controls Inc

History of DRd 0-10v cards

DRd 0-10v cards have had 3 major revisions as of July 2019, and features were added to each release. You can tell which revision you have by looking at the part number on the sticker here:

0-10V Part Number Sticker.png


Assembly Part Number



Release change




Original release of the board






Changed such that when power is lost, the card goes into a high-impedance state (which sets 0-10V loads to full brightness on loss of rack power)






Added isolation between the 0-10V lines and the signal ground of the rack. This improves the resilience of the system to 0-10V lines with leakage voltage present




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