Yep it's a replacement for the DEC DLV-11E and programatically the same.
It's not nearly as rugged however but worth ahving for any PDP11.
On Sun, 20 Aug 2000, Aaron J. Grier wrote:
an electrician came in to my place of employment last
week and installed
some new lighting in the "engineering junkyard" which was previously a
very dark place. The new light prompted me to do some exploring, and in
doing so, I spotted a heath H11!
unfortunately, it looks like the case has been stripped, as only one
half-height board remains in the cardcage. The handle is labeled "Heath
Serial I/O." I threw it on a flatbed scanner and the pictures are here:
Is this one of heathkit's almost-like-DEC-but-not-quite boards?
Aaron J. Grier | "Not your ordinary poofy goof." | agrier(a)poofygoof.com