pin 5 is master

We were so close today to complete 3d nirvana - we had the 2 si-2k camera heads connected to a single workstation on a nimble cart - the complete capture cart including multiple sound channels, 3d projector set and critical color monitoring, and we had Ari on the phone trouble shooting - and looks like I didn't get the sync cable wiring correct, so while I wait replacement parts, Ari's overnighting the missing cable. Ari - you're the best, thanks!