I recently switched from a 2108 to 2108p, and noticed some discrepancies in the command protocol documentation. The biggest being the difference between the deca commands according to the table below:

The footnotes mention the DI-2108 does not support the deca command, but the table says it does. The table also says the DI-2108p does not support the deca command, but when I send the command it echos. Which is correct?