I suspect you've got yourself quite a pickle. I've got some of the same CCU's.
The Hitwchi CCU's support either RTS or Clearcom party line intercom (there are internal switchers to select which) it appears that Data Video is incompatible with both systems. Unless they make a converter you may be out of luck.
The PD and Eng are two different internal intercom channels within the camera that happen to have names rather than numbers. You can listen or talk to either of both from the camera. As I recall the Eng channel also functions with the CCU on and camera off over the copper pairs in the SMPTE hybrid cable
Hope this helps,
Philip
Thanks Philip. This is the problem with buying cameras before buying the new comms system 'eh? A Helix system is in the works - unfortunately a matrix system with wireless isn't in the budget any time soon.
I figured that the two comms inputs corresponded to the two channels on the back of the fiber adapter. It's a shame Hitachi can't call them by the same name.
My hope was that one of the comms geniuses here might have some ideas on things I could try that wouldn't risk blowing things up. The Datavideo is decidedly low budget but it's actually worked very well and the built-in tally has been nice when using cameras that don't have it on-board. I'd actually recommend it to someone who needs comms now but wants to save money for the purchase of a good comms system later. The only downside has been the headsets breaking. A perfect example of where you get what you pay for.
If I can't get comms working at least I can get tally working and save comms for another day.
