neptune769 0 Posted August 10, 2017 Is there anyone that can tell me if I need an AD Ultra 8 I/O board or will the earlier models work? I have an Ultra 8 PTZ but it won't power up when I connect it to the I/O board from a Ultra 7 I don't have an Ultra 8 I/O board. I have no other way to test the Ultra 8. Thank you, Dennis Share this post Link to post Share on other sites
