4.4. What multi-port serial cards are supported by FreeBSD?

• AST/4 in shared IRQ mode,

• ARNET 8 port in shared IRQ mode,

• BOCA 4/8/16 port cards inshared IRQ mode,

• Cyclades 8/16 port <Alpha>,

• Cronyx/Sigfgma multiport sync/async,

• RISCom/8 multiport card,

• STB 4 port i shared IRQ mode,

Some unnamed clone cards have also been known to work, especially those that claim to be AST compatible.

A Dibiboard driver is currently in alpha stage. If you want to test it, take the file in the incoming directory

Check the sio(4) man page to get more information on configuring such cards.