To Our Customers
What
is an Interface?
It's
a
generalized means of communication
between
your TRS-80
and
some external
device,
providing
the necessary
conventions
regarding
data-identification, transmission
rates, send-receive
sequences,
error-checking techniques, etc. However, an Interface does
not
provide the programming necessary
to use any
particular TRS-80/
external
device system.
For example,
having
the Interface installed
does
not automatically
enable
you to
send BASIC programs
from one TRS-80
to
another; to
output to a
line printer via
the Interface;
etc.
Such applications
require
"driver programs" which
must be
custom-designed
for
the
equipment
you intend
to use.
In this manual you'll find listings for two
such
"driver programs".
One
allows
your
TRS-80
to
function
as a
terminal,
the
other
allows your
TRS-80 to output to
a
popular serial interface line
printer, the
DECWRITER.
The Radio Shack RS-232-C Interface is designed to meet the
EIA
standards.
However, we cannot
guarantee that it
will work with
all
so-called
"RS-232-C
compatible" devices.
Nor do
we
commit
ourselves to
provide engineering
and
programming support
for such
applications, or other special custom-use situations.
We
do,
however, guarantee that our Interface will function
correctly
with all our own RS-232-C equipment.
©Copyright
1978,
Radio
Shack, A Division
of
Tandy Corporation,
Fort
Worth, TX. 76102 U.S.A.
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