Table of Contents
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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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