Technical Specifications Multi‑channel signal isolation and matching circuit. Auxiliary power supply 24 V DC. Typical power consumption 3.2 W. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Board surface IP20. Matches corresponding ABB equipment assembly technical requirement.
Functional Features Realizes electrical isolation between internal circuit units. Completes signal level matching and conversion. Restrains internal circuit electromagnetic interference. Provides stable signal transmission channel between subunits.
Application Scenarios Used as internal matching spare part of special ABB automation equipment. Applied for equipment overhaul and spare‑part replacement scenario.
Performance Parameters Signal transmission keeps stable. Isolation circuit suppresses crosstalk interference. Circuit works continuously for long‑term industrial operation.
Material Composition Glass‑fiber epoxy printed circuit board. Optocoupler isolation components, signal matching resistance‑capacitance components. Metal fixing support. Multi‑pin plug‑in connectors.
Structural Characteristics Flat embedded circuit board structure. Multi‑pin connectors set on both sides for internal unit connection. Board dimension varies according to equipment assembly space. Weight approximately 0.28 kilogram.
Working Principle After power‑on, board receives signal from front‑end unit. Signal passes isolation and level matching circuit, then transmits to rear‑end functional unit. Isolation components eliminate interference between different circuit units.
Installation Requirements Install circuit board into original equipment designated position. Fasten fixing screws. Plug in internal connectors in place. Ensure equipment cabinet protective grounding. Verify signal transmission function after power‑on.
Usage Notes Anti‑static wrist strap must be worn during disassembly and assembly. Disconnect total power supply before operation. Do not bend circuit board. Prevent dust accumulation on board surface. Replace according to equipment maintenance requirement.
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