Citizen CT-S251 User Manual page 34

(1) Connector pin configuration
No. Signal
1 FG Frame ground
2 DRAWER1 Cash drawer 1 drive signal
3 DRSW Cash drawer switch input
4 VDR Cash drawer drive power supply
5 DRAWER2 Cash drawer 2 drive signal
6 GND Signal ground (common ground on
circuits)
(2) Electric characteristics
1) Drive voltage: 24 VDC
2) Drive current: Approx. 1 A max. (not to exceed 510 ms.)
3) DRSW signal: Signal levels: "L" = 0 to 0.5 V, "H" = 3 to 5 V
(3) DRSW signal
Status can be tested by commands.
(4) Drive circuit
Cash drawer open/
close switch
CAUTION
 Cash drawers 1 and 2 cannot be operated at the same time.
 The solenoid used for the cash drawer should be 24  or more. Do not allow the electric
current to exceed 1 A. Excessive current could damage or burn out the circuits.
Function
Cash drawer kick-out connector
Shielded
Cash drawer Printer
— 30 —
Connector used:
TM5RJ3-66 (Hirose) or
equivalent
Applicable connector:
TM3P-66P (Hirose) or
equivalent