Bixolon SRP-270 User Manual

Page of 85
 
Rev. 3.02 
- 33 -
SRP-270
4-3-3 Cash Drawer Circuits 
 
The circuit is used for opening cash drawer and driven by the Q8 (STA471). When its state is high level 
signal, Q8 (STA471) drive the solenoid to open the cash drawer. As an optional item, we provide sensor 
switch (we call it a compulsory switch) which checks the drawer whether it is opened or not. This sensor 
switch turns on for the drawer open condition, and turns off for the other. 
 
 Caution: make sure that the Cash Drawer solenoid resistance is more than 20Ω.
 
 
 
 
[Figure 4-6 Cash Drawer Block Diagram]