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Activity Forums AJA Video Systems What are the 2 SDI inputs for?

  • Bob Zelin

    July 8, 2007 at 2:27 pm

    input channel 1, and input channel 2. On Kona 2 and Kona 3 cards, these are for either dual link 4:4:4 input (which use 2 BNC), or channel 1 and channel 2 (2 different inputs) that are selected in the Kona control panel.

    The Kona LHe does not have this.

    Bob Zelin

  • Devin Crane

    July 8, 2007 at 6:51 pm

    Doesn’t the IO HD only support 4:2:2? No 4:4:4

  • Bob Zelin

    July 8, 2007 at 9:11 pm

    you are correct, and I/O HD won’t even do uncompressed HD. So input 1 and input 2 are TWO SEPERATE INPUTS – for 2 different VTR’s.

    Since I never deal with 4:4:4, in the past, I would have a HD VTR go into a Kona 3 input 1, and have an AJA I/O SDI output go into input 2, and use the Kona Control Panel to select between the 2 inputs.

    Bob Zelin

  • Russell Lasson

    July 10, 2007 at 5:58 pm

    It could be possible that they are future proofing the IOHD incase Apple develops ProRes444 someday. That way it could still connect to dual-link devices.

    Just a thought.

    -Russ

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