Matrix Talk:Tag-RCAio

About the tags [RCAio] and [TOSio]

These are to do with the physical connector rather than the protocol being used.

(We don't call analog connections "XLR" "RCA" "3mm-jack")

I'd suggest a more descriptive tag would be Matrix:Tag-SPDIFio

For instance many AudioScience cards support software selectable AESEBU or SPDIF for digital I/O. The connectors are XLR. They don't have RCA connectors.