Specifications
INSTALLATION
1.2.2
Interface Cable Connections
The
Ampex
230
plus terminal
has two
standard RS232C serial port interfaces (Figure 1-4).
One,
the
"PRIMARY" port,
is
used
to
connect
the
terminal
to a
host computer.
The
other,
the
"PRINTER" port,
is
used
to
connect
the
terminal directly
to a
printer
(a
printer
may be
connected directly
to the
computer).
To
connect
the
terminal
to the
computer and/or printer,
use a
standard RS232C serial
cable with
a
male connector
on the
terminal end.
The
type
of
connector
on the
opposite
end of the
cable depends
on the
connector
of the
computer
(/modem/printer).
The
maximum length
for an
RS232C cable connecting
the
terminal
and
other equipment
is
50
feet.
NOTE
It
is
recommended
that
you use
only
shielded
and
jacketed cable. Using
such
a
cable
will
help
minimize electromagnetic interference, protecting
your
terminal
and any
other electronic devices near
the
terminal.
When connecting
the
terminal
to
other equipment, make sure that pins
on the
terminal
connector
are
matched
properly
with
the
pins
on the
connector
of the
other equipment
(see
Section
V).
Pin
assignments
for the
primary
and
printer port
are
given below.
Table
1-1
provides
pin
signal
assignments
for the
primary port. Table
1-2
provides
pin
signal
assignments
for
the
printer port.
1.2.2.1
Optional Interface Connections
The
RS232C connection
of the
primary port
may be
replaced
by
either
of two
optional
interface
connections:
RS422
Interface (for more speed)
20
mA
Current Loop Interface (for greater cable length)
These
options
are
available
in
kits from Ampex
and may be
ordered through your
Ampex
Sales
Representative. When ordering,
be
sure
to
specify
the
part number
for the
desired
kit:
RS422
Interface
Kit: Ampex
Part
No.
3515412-02A
Current
Loop
Interface
Kit:
Ampex
Part
No.
3515413-02A
Procedures
for
installing
both options
are
given
in
Appendix
B.
1-7