SATO SG112 ex, Programming Reference Manual

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483
I/O signal
The details of each signal line for the Centronics standard (compatible mode) are as follows.
Note that each signal line complies with the IEEE1284 standard.
Pin no. Signal name I/O Contents
1 STROBE Input Synchronization signal that requires low active pulse
to read DATA1 to DATA8
2 to 9 DATA 1~DATA 8 Input Data entry of 8 bits parallel: DATA1 is LSB (lowest bit)
and DATA8 is MSB (highest bit).
10 ACK Output Low active pulse signal indicating the completion of
receive data import
11 BUSY Output High active signal indicating that the printer is not
ready to receive data
12 PE Output High active signal indicating paper shortage
13 SELECT Output High active signal indicating that the printer is ready to
receive data
14 AUTOFD Input Signal for the IEEE1284 standard
17 CHASSIS GND Connecting to the chassis ground
18 PERIPHERAL LOGIC
HIGH
Output +5V voltage on the printer side
19 to 30 SIGNAL GROUND Connecting to each signal ground
31 INIT Input Low active pulse signal initializing the printer
32 FAULT Output Low active pulse signal indicating an error in the
printer
36 SELECTIN Input Signal for the IEEE1284 standard