Issue:
Specifications for the PTC Inputs on the VW3A3203 Option card.

Resolution:
• PTC:
- 3 or 6 thermal sensors mounted in series (configurable by software)
- Thermal sensor current: 1mA maximum
- Nominal value: <1.5 kΩ
- Overheat trigger threshold: 3 kΩ
- Overheat reset threshold: 1.8 kΩ
- protected for low impedance: <50 Ω
- detection of high impedance: >100kΩ

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