Increaseing the Serial Line Buffer on Sun 4/110

[Tom Doong]

Does anyone know how I can increase, from 256 bytes, the serial line
buffer size on Sun 4's (in particular the Sun 4/110).  I seem to remember
some mention of it in Sun Spots a while back (6 months to a yaer ago).
Any pointers would be greatly appreciated.  Please reply directly to me,
doong at rtc.reston.unisys.com.  I'll compile and post if the interest is
there.

Thanks.
Tom Doong
UNISYS
Tactical Systems Division