[Elecraft] Any ideas on how to run serial (DB9) and USBserial at the same time?

[David Orman]

Hi,

I'd like to have serial output via db9 and also usb at the same time with
my KX3. Is this something possible? ie: have the cable run from my
KXPA100(I have a KX3/KXPA100/PX3 trio) to some sort of external box with a
DB9connector using the KXSER option, and that box would have a second
DB9port (or cable running from it) so I could connect something else that
needed serial access, in addition to a USB port (or another serial port) I
could use to connect to my PC.

I need something that ends up like this:

KX3/KXPA100/PX3 (firmware updates/backups/computer control) -> MAGIC BOX
MAGIC BOX -> another accessory via DB9/serial
MAGIC BOX -> computer via USB ideally, or via serial with an adapter for
USB for the computer

I'm not having a whole lot of luck searching Google for something of this
nature, so I'm looking for suggestions (open to completely different
solutions).

Thank you,
David