Citizen Systems iDP-3535 user manual Data, Ack

iDP-3535 User’s Manual

6-3 Description of Input / Output Signals

1. Input / Output Signals

Input Signals (To Printer)

DATA 1		: 8 bit signal (Positive logic)
DATA 2		: 8 bit signal (Positive logic)
DATA 3		: 8 bit signal (Positive logic)
DATA 4		: 8 bit signal (Positive logic)
DATA 5		: 8 bit signal (Positive logic)
DATA 6		: 8 bit signal (Positive logic)
DATA 7		: 8 bit signal (Positive logic)
DATA 8		: 8 bit signal (Positive logic)
STB	: A strobe signal for reading in 8 bit data. (Negative logic)
RESET : RESET signal. (Negative logic)
Output Signals (From Printer)
ACK	: This is pulse signal for requesting 8 bit data, issued at the end of a BUSY signal. (Negative logic)
BUSY		: This signal indicated that your printer is in a BUSY state. New data should be input when this
		signal is “LOW”. (Positive logic)
FAULT		: When your printer is in an alarm state, this signal is “LOW”. At this time, all control circuit of
		your printer are interrupted. (Negative logic)

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