Radio Shack 26-1145 - Front View

Installing
The
RS-232-C
Note:
Some
of the first
TRS-80
Expansion
Interface
units
were
manufactured
with
a 42-pin
connector (required lor
the
RS-232-C Interface). If your Expansion
Inierface does not
incorporate this
connector,
you
must
return it for
proper
installation
of this
connector
and
Hie
RS-232-C. Any at
tempi
to
install this
connector on
your
own will
aulomalically void
all warranly.
If
your
Expansion Interface
incorporates
the
necessary
42-pin con-
nector,
install the
RS-232-C
Interface as
follows:
1
.
Position the
TRS-80 Expansion
Interface as
shown
in
Figure
2
and
remove the
Expansion
Door.
2.
Remove two
machine
screws and
washers
from the
42-pin
con-
nector.
3.
Position
the
RS-232-C
Interface as
shown.
Line up
the
42-pin
connector
mounting holes
with the
screw
holds in
the
RS-232-C
Interface
Printed
Circuit
Board.
Fasten with
two
washers and
screws.
4.
Position
the
RS-232-C
as shown
below
(front
view).
Remove
cover
from
the
center
of the
Expansion
Interface.
Carefully
press
the
40-pin
connector
of
the cable
supplied
with
the
RS-232-C
over the
edge
connector
which
will
be
exposed;
the
flat
cable
must
extend
downward.
Connect the
other
end
of the
cable
(DB-25)
to the
desired
Modem
or
Line
Printer, etc.
EXPANSION
BOARD
PORT
CARD
EDGE-J1
EXPANSION
INTERFACE
FRONT
VIEW
OF
EXPANSION
INTERFACE