Citizen Systems CBM-230/231 用户手册
CBM-230/231 User’s Manual
CITIZEN
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6.3 Input / Output Signals
6.3.1 Input / Output Signals
(1) Input signals to the printer
l DATA
: This is an 8-bit parallel signal (Positive logic)
l STB
: This is a strobe signal to read in 8-bit data (Negative logic)
l RESET
: This signal resets the entire printer (Negative logic) 1 ms or more
(2) Output signals from the printer
l ACK
: This is an 8-bit data request signal. Pulse signal output at the end of
the BUSY signal (Negative logic)
the BUSY signal (Negative logic)
l BUSY : This signal indicates the BUSY state of the printer. Enter new data when it is
at LOW. (Positive logic)
l FAULT
: This signal is set to low when the printer has an alarm.
When this is done, all control circuits in the printer stop. (Negative logic)
When this is done, all control circuits in the printer stop. (Negative logic)
l PE
: This signal is output when the printing paper has run out or is running out.
(Positive logic)
(Positive logic)
l Drawer switch output : This signal is set to HIGH when the switch is opened, and to LOW when shorted.
(3) Power signals
l +5VDC : This is a 5 V output pulled up at a 3.3 k Ohm resistor.
l GND : This is a common ground on the circuits.
l GND : This is a common ground on the circuits.