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{3)
Connector signals and descriptions
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Name
Direction
Description
Data strobe signal
1
DSTB
Input
Signal for reading data.
When this signal is ""LOW"'
data (DATA 1--8) is read.
2
DATA
1
Data bus
!
~
input
8 bit data signal.
When the data is "1," this signal
9
DATA
8
is "HIGH."
Acknowledge signal
—
This signal is sent when the plotter completes read-
Output
10
ACKNLG
ute
ing data.
|t can be used as a data request signal of
the plotter.
Busy signal
11
BUSY
Output
This
signal
indicates the processing status of the
plotter.
When
it is ""HIGH,"" no more input data
can be read.
12
SIGNAL
GND
-
Signal Ground
13
SELECT
Output
This signal is always
"HIGH''
when the plotter is
powered on.
14
.
15
NC
-
Non-Connection
16
SIGNAL
GND
—
Signal Ground
17
F.G.
—
Frame Ground
18
+5V
—
A power source of +5V used in the plotter.
19
2
SIGNAL
GND
-
Signal Ground
30
Signal for initializing the plotter. When this signal
31
EXPRM
Input
falis from
""HIGH""
to "LOW,"
initialization will
take place.
32
FAULT
Output
This signal
is always
"HIGH'*
when the plotter is
powered on.
33
¢
NC
—
Non-Connection
36
15
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