User`s guide
11
Host/Printer
Port
2
This
port,
labeled
"Aux," is
designed
to
connect
to a
second
host
connection
(computer
or
modem),
a
scanner
or
other
input
device, or a
serial
printer,
and
can
operate
from
110
to
38,400
baud.
This
port
also
uses
an
RS-232-
C
interface
via
an
RJ45
female
connector
and
is
configured
as
a
DCE
device.
Data Iermmal Ready Transmitr
Receive
ill
I
r~
Carner
Detect
Clear to Send Frame Ground
Data Set Ready
~
l I
~
Request to Send
! I i I
Ii!
,
iii
i;L'?
Parallel
Printer
Port
This
port,
labeled
"Parallel" is
designed
for
connection
to a
parallel
printer,
which
has
a
Centronics
interface
with
a
25-pin
D-shell
female
connector.
This
port,
unlike
the
others,
is a
uni-directional
device,
which
means
that
it
only
serves
to
output
data
to
the
printer,
and
cannot
receive.
The
pins
and
signals
supported
are
shown
below.
I
~
76543210
Strobe
!
•
These
signals
are held
high,
in an
inactive
state.
If
you
have
opted
to
use
a
parallel
printer,
but
it is
not
connected,
an
error
message
will
appear
on
the
status
line
when
any
PRINT
operation
is done, To
clear
themessage,
press
Ctrl-Shift-Tab.