Questions about the SX20 codecs are probably better asked in the TelePresence section of the forums, so you may wish to move your discussion to there.
In any case, the maximum supported distance for the Visca Control (serial cable) is 20m / 65.6 ft, so you shouldn't have issues extending it to only 3m.
It is recommended that the camera is powered separately when using such an extension to the cable, and that the +12V pin on the Visca Control cable is not connected, apart from that, a straight through cable is required.
Wayne
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Wayne
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