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Signal
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Signal Parallel
Direction
Description
Pin
Pin Cable
Pin
11
29
BUSY
11
OUT
A HIGH signal indi-
cates that the prin-
ter cannot receive
data. The signal
goes HIGH in these
cases.
-Data entry, for
each character
-When off line or in
error slate
-When serving the
IBM host and a
byte of parallel data
is received.
12
30
PE
12
OUT
HIGH when the
printer is out of
paper.
13
SLCT
13
OUT
Pulled up to +5V
through a 3.3K
ohm resistance.
14
AUTO
14
IN
THIS SIGNAL IS
FEED
NOT SUPPORTED
BY THE C82314*
INTERFACE. (De-
+
lined by many
printers to add a LF
to each CR. The
IBM 3270 protocol
does not allow sup-
port of this signal.