Since DMX512 has actually existed since 1986, the technical issues are well established, so the CD will be a very solid document. Therefore, the Committee Stage is expected to be closer to two months long versus five months. The CDV is circulated for Vote and further technical comment in the Enquiry stage. This FDIS is then circulated to the National Committees for a two month voting period the Approval stage. Otherwise, it goes back to the Sub-Committee.
Final publication occurs within two to three months of approval.
This is a long, deliberative process, and could take a couple of years. In the mean time, the ANSI version of DMX512 will be progressing, and should be completed well before the IEC process finishes. Since the IEC version will be drawn from the ANSI version, the end result should be that these two different standards will differ in appearance only.