Thanks for your reply, Gary.
So the 2-wire/4-wire interface that's been recommended in a couple other posts in this forum is the RTS SSA-324 (I would include a link but this forum doesn't allow that
). The terminal block on the back of that device has terminals for "4-Wire In Hi", "4-Wire In Lo", "4-Wire Out Hi" and "4-Wire Out Lo". The DB-25 breakout on the Fiber Converter has pins for "IN+", "IN-", "OUT+", "OUT-" and "GND" (times two channels). Can you provide some guidance as to which pins go to which terminals? Does "Hi" mean "+" and does "Lo" mean "-"? What about the ground?
And once we get that figured out, there's still the fact that we're trying to interface three camera chains with this 2-wire intercom system. So do we just cram three wires into each of the terminals on the 4-wire interface or do we need a different interface that accommodates multiple devices? Would some type of splitter help?
Bottom line-- It seems like there's a significant lack of information online on how to integrate third-party comms (and tally) with these camera chains. Am I missing something? Can you point me to some documentation? Does Blackmagic have any partners who are familiar with doing what we need to do that might consult on this project? Does anyone make an interface box/cable that makes all of this any easier?
Again, your help is most appreciated!
Mark