Specifications
Page
2-2
1770-805
When
used
as a
data
terminal
or
for
report
generation,
the
full80
x
24
screen
can
be
used
to
display
alphanumeric
and
graphic
charac-
ters.
2.2
CONTROLS
There
are
three
controls
on
the
Industrial
Terminal
CRT
Monitor
as
Figure
2-1
shows.
They
are:
•
Power
ON/OFF
-located
on
the
front
of
the
Industrial
Terminal
CRT
Monitor.
When
the
power
switch
is
ON,
it
engages
a
mechanical
interlock
to
guard
against
attaching
or
re-
moving
the
keyboard
while
power
is
applied.
•
Brightness
-
located
on
the
back
of
the
Industrial
Terminal
CRT
Monitor.
It
con-
trols
the
intensity
of
the
screen.
•
Volume-
located
on
the
back
of
the
Indus-
trial
Terminal
CRT
Monitor.
It
controls
the
audio
level
of
the
beep
tone
that
is
generated
when
a
valid
key
on
the
keyboard
is pressed.
2.3
SOCKETS
AND
CABLES
The
various
sockets
on
the
back
of
the
Indus-
trial
Terminal
CRT
Monitor
(Figure
2-1)
in-
clude
the:
•
AC
power
cord
connection
•
Three
Channel
sockets
(A,
B,
and
C)
•
Video
Output
Jack
Channels
A, B,
and
Care
the
communication
ports
for
connecting
Processors,
peripheral
devices,
computers,
and
modems.
Channel
B
performs
different
functions
in
different
Indus-
trial
Terminal
Systems
(Table
2-1 ).
The
Video
Output
Jack
can
be
used
to
connect
an
RS-
170
compatible
Black
&
White
CRT
monitor
capable
of
underscan
operation.
The
function
of
each
channel
and
the
cables
required
are
described
in
Table
2-1.
2.4 KEYBOARD
CONNECTOR
COVER
The
Industrial
Terminal
System
is
shipped
with
the
keyboard
connector
cover
installed
on
the
front
of
the
CRT
Monitor.
If
the
Indus-
trial
Terminal
System
is
used
as a
monitor
(without
a
keyboard),
this
keyboard
connector
cover
MUST
be
installed.
2.5 KEYBOARDS
There
are
four
keyboards
available,
one
for
each
Industrial
Terminal
System.
They
are:
TABLE 2-1
-Sockets
and Cables
Socket
Function
Industrial Terminal
Cables
System
Channel A Connects to a PLC-2 1770-
T1
,-T2,-T3
1772-TC
PLC-2 Family Family Processor or a
Series 7100 CNC
Channel B Connects
to
a PLC
1770-T2
1774-TC
PLC-3/PLC
Processor
1770-T3 series B
1770-CB D
with a
Data Terminal
1774-DC or DC2 D
Connects to a PLC-3
1770-T4
1775-CAT
Processor
Use
as
a Data Terminal
All
1770-CB D (male)
or
or
Monitor
1770-CC D (female)
ChanneiC
Connecting to a Digital
All
Device provided
Peripheral
Cassette Recorder Data
RS-232-C
Cartridge Recorder
or
hard
copy
printer
Video Output Jack Connecting
to
a B & W
All
User provided
(BNC)
75
CRT
Monitor
f)
RS-170
D Optional Cable. Must be ordered separately.
f)
Must be Black & White
monitor
with underscan operation (the raster must be
fully
contained within the viewing area
of
the screen).
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