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:
|
Assembly Part Number
|
Release change |
|---|---|
|
7180B5612
|
Original release of the board
|
|
7180B5644
|
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)
|
|
7180B5649
|
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
|