Cash Drawer - Casio QT-7300 Service Manual

4-8. Cash Drawer

The QT-7300 provides two Cash Drawer interface. Cash Drawers are assigned as one of I/O in this system and
controlled by the Drawer port on the motherboard (SBC8360-4M).
The pin assignment for the Cash Drawer connector is as follows.
Cash Drawer connector Pin Assignment
Pin
1 FG
2 Out Switch
3 Read Switch
4 +24V
5 NC
6 GND
4-8-1. Cash Drawer control Software Programming
The Cash Drawer is assigned as one of I/O device in the system. The I/O address assigned for the Cash Drawers
123h. The QT-7300 can support two Cash Drawers and each Cash Drawers can be controlled respectively by
output or input data to this I/O address. The open/close status of drawers also can be read by reading this I/O
address. Following is software programming method for Casio standard Cash Drawer model DL-2765, DL-2909
and DL-3615.
I/O Address
Drawer A
Drawer B
Example program; < Drawer A open >
Out 123h, 01h
< 100 ms timer >
Out 123h, 00h
Example program; < Read Drawer open status >
Input 220h
If data is FFh: Drawer A , B closed
If data is FEh: Drawer A is open, Drawer B is closed.
If data is FDh: Drawer A is closed, Drawer B is open.
If data is FCh: Drawer A is open, Drawer B is open.
Note: 1) Drawer open signal on time is 100 ms.
2) Do not open Drawer A and B at same time (Output data 03). If two drawers were open at same time,
it may cause damage on system power supply.
Description
Bit Output Data to Open
123 0
123 1
: Drawer A open signal on
: Open signal on 100 ms
: Drawer A open signal off
: Read Drawer open status
— 13 —
1 2 3
Input data for status
01h
02h
4 5 6
FEh (open)
FDh (open)