Peripheral Unit Drive Circuit - Star SP712 SERIES Hardware Manual

8. Peripheral Unit Drive Circuit

Peripheral unit drive circuit connector only connects to peripheral units such as cash drawers,
etc.
Do not connect it to a telephone.
Use cables which meet the following specifications.
Peripheral Drive Connector
Pin Signal
No. name
1 FG Frame ground
2 DRD1 Drive signal 1
3 +24V
4 +24V
5 DRD2 Drive signal 2
6 DRSNS Sense signal
Drive circuit
The recommended drive unit is shown below.
6-P Modular
jack connector
Reference
2SD 1866 Circuit Configuration
B
R3 R4
Function I/O
direction
—
OUT
Drive power OUT
Drive power OUT
OUT
IN
F.G
TR1
M-GND
TR2
6 1
M-GND
+5V
TR3
C
E
Modular plug
Modular plug: MOLEX 90075-
0007, AMP641337, or FCI B-66-4
1
2
D1
3
+24V
7824
4
D2
5
R1
6
R2
Printer side
Drive Output: 24V, Max. 1.0A
TR1, TR2:
R1=10k W
R2=33k W
– 33 –
With shield
Peripheral unit
L1
R3
L2 1/4W
Peripheral
unit 2
Compulsion
switch
Frame
ground
User side
Transistor 2SD1866 or equivalent
Shield
Wire lead