HELP HELP HELP ADT122

["Avram J. Berman" <aberman@ajba.com>]

I got my dos 3.3 master disk and booted it up and typed in#2 and then
control a and got the ssc: prompt and then typed 6b for 300 baud - that
was simple.  I set the dip switches on the super
serial card according the the adt122 documentation, using a null modem
cable - that was simple.

At the dos prompt I typed in:
mode com1: baud=300 data=8 parity=n
and then
type adt.dmp >com1:

"yes I am in the right directory with the right path to adt.dmp
I get the message, "write fault error writing device 1.  Does this mean
the problem is on the pc side or the apple?"

so close and yet so far.
kindest regards aj

p.s. when i load up adt.exe on the pc and choose com:1 it see's it.