9. Periheral 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 | Modular plug |
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| Modular plug: MOLEX |
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Pin No. | Signal | Function | I/O |
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name | direction | AMP641337, or BURNDY | Shield | ||||||||||||
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| Wire lead |
1 | FG | Frame ground | — |
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2 | DRD1 | Drive signal 1 | OUT | 6 |
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3 | +24V | Drive power | OUT |
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4 | +24V | Drive power | OUT | 1 |
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5 | DRD2 | Drive signal 2 | OUT |
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6 | DRSNS | Sense signal | IN |
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Drive circuit
The recommended drive unit is shown below.
1
F.G
With shield 2
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| TR1 |
| D1 | L1 | Peripheral |
6 | 1 |
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| unit 1 | ||
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| +24V | 7824 |
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4 |
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| R3 | |||
connector |
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TR2 |
| D2 |
| 4.7kΩ | ||
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| 1/4W | |
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| 5 |
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| Peripheral | ||
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| +5V |
| unit 2 | Compulsion | |
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| R1 |
| switch |
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| TR3 |
| 6 |
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| R2 |
| Frame |
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| ground |
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| Printer side | User side |
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Reference |
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2SD 1866 Circuit Configuration | C |
B 
R3 R4
E
R3= 3.5kΩ
R4= 300Ω
Drive Output:24V, Max. 1.0A TR1, TR2: Transistor 2SD1866
or equivalent
R1=10 kΩ R2=33 kΩ
– 24 –