Citizen Systems iDP-3210 user manual Data, Stb, Reset, Fault

iDP-3210 User’s Manual

6.1.3 I/O SIGNALS

(1) Input Signals to the Printer

•	DATA	: 8-bit parallel signal (positive logic)
•	STB	: Strobe signal to read 8-bit data (negative logic)
•	RESET	: Signal to reset the entire printer (negative logic) 1m sec or more
(2) Output Signals from Printer
•	ACK	: An 8 bit data request signal. Pulse signal output at the end of
		the BUSY signal. (negative logic)
•	BUSY	: The signal to indicate BUSY state of the printer. Input new data for "LOW".
		(positive logic)
•	FAULT	: The signal which is made "LOW" when the printer is in alarm state. All the
		control circuits inside the printer are stopped at this time.(negative logic)
•	PE	: The signal which is output when paper runs out or goes scarce. (positive logic)

•Drawer Switch Output

:With the switch open, this signal goes "HIGH". When shorting, this goes "LOW".

(3)Power supply • +5 V DC • GND

:This is 5V pulled up by a 3.3k Ohm resistor.

:This is the common ground for the circuit.

CITIZEN 34