The CB-22H and CB-23H are compatible with the PD-6, DDC-4012H, and VP-605H. Please note that the “non-H” versions of these accessories are NOT meant to be used on the PD-6.
The CB-22, CB-23, and CB-24 is compatible with the PD-3, DDC-2512, and DDC-4012. Please note that the “H” versions of the DDC series accessories are NOT meant to be used on the PD-3.
The SDI and CV Lookback cables are very similar to RG59 The thicker SDI video cable is 3C-2V, or 2.5C-HD (CB-50 only) The thinner CV lookback is 1.5C-2V
According to Wikipedia, 3C-2V is part of the JIS C 3501 standard: The 3 indicates approx diameter of the conductive core (=0.5 mm) The C indicates a characteristic impedance of 75 ohms The 2 indicates a solid PE dielectric core The V indicates a single braided outer conductor (W would be double)