Star Micronics FVP10 series Hardware Manual page 63

Drive circuit
6 1
6-pin modular
jack connector
Reference
2SD 1866 Circuit Diagram
B
R3
Handling Precautions
1) Peripheral devices 1 and 2 cannot be driven simultaneously.
2) To continuously drive the peripheral device, keep the duty cycle less than or equal to 20%.
3) If you connect a cash drawer or similar device, be sure not to set bit 2 of memory switch #7 to 1. Doing so may damage the
connected device and the drive circuit.
4) You can use the status command to query the compulsion switch state.*
5) Minimum resistance for coils L1 and L2 is 24 Ω.
6) Absolute maximum rating of diodes D1 and D2 (Ta = 25°C)
Average rectified current I
7) Absolute maximum rating for transistors TR1 and TR2 (Ta = 25°C)
Collector current I = 2.0 A
C
* For details of commands, see the separate Programmer's Manual.
http://www.star-m.jp/eng/dl/dl02.htm
F.G
TR1
+24V 7824
M-GND
TR2
M-GND
Vcc
R1
TR3
R2
Printer side
C
R3 = 3.5KΩ
R4 = 300Ω
R4
E
= 1.0 A
o
1
With shield
2
D1
L1
3
4
D2
L2
5
Peripheral
device 2
6
Frame ground
User side
Drive output
TR1, 2: 2SD 1866 or equivalent
R1 = 10 k Ω
R2 = 33 k Ω
- 57 -
Peripheral device 1
R3
4.7KΩ
1/4W
Compulsion switch
24 V, 1.0 A max.