Alan Crosswell wrote in a message to Mike Bilow:

 AC> I use a Boca Research 6-port board.  This is considered a
 AC> dumb multiport shared irq board.  It's a bunch of 65550's
 AC> with some jumpers for various shared vs. non-shared IRQs and
 AC> port addresses.  Not entirely flexible (you may need to
 AC> remap your current com1/2 via the bios in order to manage to
 AC> get all 8 serials working).

Actually, you can run a jumper wire across the board and use all six ports on
any of the six IRQs available on the DIP header.  This is not documented, but
it works perfectly well, as should be obvious from looking at the board traces.
 The documentation says that, if you want all of the ports to share one IRQ,
you only have a very limited choice, but that's nothing a little wiring won't
fix.  (I assume we're talking about the IOAT-66, correct?)
 
-- Mike

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