Colorado Time Systems HWPM 110 and HWPM 220

This article is a stub. HWPM 110 and HWPM 220 are optional parts that Colorado Time Systems lists among the components of a Myriad or Mercury16 matrix display, in the manual that covers both boards.

That manual never says what either part is, and no other document held names them, so what they do and how they differ from each other are unestablished.