This is definitely one of those things that didn't need doing, but one or
two people asked about a DE9 version of the tiny DB25-to-DLV11J PCB I did
a while ago (that replaces a cab kit for DEC Q-bus serial ports that use a
9/10-pin Berg), and I didn't like the idea because I've always hated the
PC DE9 pinout (I can't believe we're stuck with a quick hack that IBM did
to cram a second connector on the bracket of the PC AT dual RS232 board --
it was widely despised at the time) and anyway it would work only with PCs.
So I figured if it's going to work only with PCs, it might as well also work
with new PCs (that don't have COM ports at all), so I did it as a USB thing:
http://www.dbit.com/projects/#dlvusb
It's simple (MCP2200 plus obvious stuff) and tiny (blank PCBs are $7.25 for
three from OSH Park) and the page has links to schematics and Gerbers and
the OSH Park project page.
The soldering's no picnic (surface mount this time) so I may do this as a
minor D Bit product if there's any interest. But otherwise ... have fun.
John Wilson
D Bit