Casio QT-7300 Service Manual

Also see for QT-7300 Series: User manual User manual Service manual

— 13 —4-8. Cash DrawerThe QT-7300 provides two Cash Drawer interface. Cash Drawers are assigned as one of I/O in this system andcontrolled by the Drawer port on the motherboard (SBC8360-4M).The pin assignment for the Cash Drawer connector is as follows.Cash Drawer connector Pin AssignmentPin Description1 FG2 Out Switch3 Read Switch4 +24V5 NC6 GND1 4 632 54-8-1. Cash Drawer control Software ProgrammingThe Cash Drawer is assigned as one of I/O device in the system. The I/O address assigned for the Cash Drawers123h. The QT-7300 can support two Cash Drawers and each Cash Drawers can be controlled respectively byoutput or input data to this I/O address. The open/close status of drawers also can be read by reading this I/Oaddress. Following is software programming method for Casio standard Cash Drawer model DL-2765, DL-2909and DL-3615.I/O Address Bit Output Data to Open Input data for statusDrawer A 123 0 01h FEh (open)Drawer B 123 1 02h FDh (open)Example program; < Drawer A open >Out 123h, 01h : Drawer A open signal on< 100 ms timer > : Open signal on 100 msOut 123h, 00h : Drawer A open signal offExample program; < Read Drawer open status >Input 220h : Read Drawer open statusIf data is FFh: Drawer A , B closedIf 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.