Справочник Пользователя для Citizen Systems iDP-3550

(1) Input signals to the printer

•

DATA

: An 8-bit parallel signal. (Active “High”)

•

STB

: A strobe signal to read the 8-bit data. (Active “Low”)

•

RESET

: A signal to reset the printer from the outside. (Active “Low”)

(2) Output signals from the printer

•

ACK

: An 8-bit data request signal.  A pulse signal output at the end of the BUSY signal.

(Active “Low”)

•

BUSY

: A signal to indicate the BUSY status of the printer.  Input new data when at "Low".

(Active “High”)

•

FAULT

: A signal turned to "Low" when the printer has an alarm.  At this time, all the control

circuits in the printer stop. (Active “Low”)

•

SELECT

: A signal to show whether the printer is selected (On-line) or deselected. (Active

“High”)

•

COMPULSION

: A signal to show the status of the drawer switch. (Active “High”)

•

PE

: A signal to show that the paper has run out.  Normal at the "Low" level, but turned to

the "High" level when the paper has run out.

(3) Power related signal

•

GND

: Common ground on the circuits

•

Vcc

: A +5 V signal.  Connected via a 3.3k

Ω

 resistor. (Factory use only)