Technical Specifications Multi‑channel signal input and output interfaces, internal system bus connector, auxiliary DC control power supply. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, relative humidity 5%‑95% non‑condensing. PCB conformal coating anti‑moisture and anti‑corrosion treatment.
Functional Features Receives raw feedback signals from field sensors and transducers. Executes signal filtering, amplitude adjustment and level matching work. Transforms field‑side signal levels to match main controller input requirements. Forwards conditioned signals to main logic board through internal bus. Provides channel over‑voltage protection and simple hardware fault detection.
Application Scenarios Original spare replacement circuit board for GE power conversion and industrial control equipment, used in energy‑sector site overhaul and spare‑part replacement projects.
Performance Parameters Accurate analog signal conditioning precision, good noise suppression capability, stable multi‑channel signal transmission performance.
Material Composition Multilayer glass‑fiber epoxy printed circuit board. Signal filter and conditioning circuit components, protection devices. Multi‑pin plug‑in connectors. Metal screw mounting hardware. Conformal protective coating layer.
Structural Characteristics Rectangular flat PCB layout. Pre‑drilled screw mounting holes for chassis bracket fixation. PCB layout isolates analog signal area and digital logic area to reduce interference impact.
Working Principle Auxiliary DC power feeds on‑board circuit. Field‑originated input signals pass through filter network and conditioning circuit for amplitude and level adjustment.Hardware protection circuit suppresses surge voltage on signal channels.
Usage Notes Avoid applying over‑range surge voltage to signal input terminals. Anti‑static operation cannot be omitted. Powered hot‑swap operation is prohibited. Prevent scratch damage to conformal coating protective layer.
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