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Max Firewire length for I/O LA
We are building a FCP room with a I/O LA. It will be about a 50-75 foot firewire run to our Avid room. All of our decks are in the Avid room and we want to put the I/O in the same rack as the equipment in the Avid room. I searched the archives and only found a suggestion of using a geffen extender
to make the cable length work, but found no follow-ups on if it works. Also, the longest 400mhz cables that I’ve found are 25 feet. Would we use one of the repeaters, and two or three 25 foot cables with barrels on them? Also would the repeater go at I/O side of the chain, the middle of it, or at the G5 end? Thanks,
Rick
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1 Reply
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As you probably already know, FW lengths beyond 12′ require a repeater. In your case, I would extend everything else and NOT the FW cable. Strangely, you can actually buy 50′ length FW cables, though I can’t say what use they would be.
In other words, setup the IO next to your Mac with a 3-6 foot FW cable, then run the CV, YUV, SDI, AES, Ref, RS-422 and whatever else cables to your machine room. You can run long lengths of video and audio cables with much more confidence than FW and USB. Be sure to use digital cable for AES, not analog, and use SDI specific coax, not regular CV coax [sorry if you knew that already].
steve covello
double wide post
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