haha yeah, most of those mono cards had a printer port stuck in there.
I'll go digging, I know I have heaps of options. I can test and configure with a 5160 XT.
Would swap for that mono card if you don't want it.
FYI 16 bit multi IO cards will work fine in the XT - just need to disable the floppy/IDE parts.
Edit: testing a multi IO card for you now, just plugged it in to the IBM 5160 XT and all appears well - came up with GAME,LPT2,COM1,COM2 - just setting up a laptop to see how fast I can crank the RS232 ports (both 9 pin). It has a 16 bit connector, but as above, this is not a problem at all.
Wanted - Dead or Alive - Reward $$$: Compaq Deskpro 8088 / 286 / 386 - IBM RT 6150/6151 parts - AT&T 3B2 partsVC Twitter