"PS Link" Connectors on DSD MkII

There are two “PS Link” connections on the back of the DSD Mk II. I can find no mention of them in the manual of PS Audio website. Are they some form of direct IR control input? What is the protocol and how might you use them. I have some Global Cache IP2IR boxes, could I send use them to send IR commands (e.g. power on, off, etc.) directly?

When the DS Mk II was released over a year ago several people commented on the PS Link, but Paul only said something special was coming. Since then … crickets. Would be nice if they would give more information …