The circuit board adopts multi-layer high-temperature resistant FR-4 industrial PCB with full enclosed electromagnetic shielding layout. Every signal channel is equipped with 1000V AC/DC galvanic isolation between field wiring terminals and internal logic circuits, effectively resisting severe electromagnetic noise generated by inverters, high-voltage switchgears and large rotating equipment in thermal power, petrochemical and metallurgical heavy industrial sites.All finished boards pass strict factory qualification tests: 72-hour high-low temperature cyclic aging, full-channel precision calibration, long-term full-load communication burn-in and channel fault simulation. It supports single-slot hot-swappable installation without overall DCS system shutdown, and integrates multi-level hardware protections such as surge suppression, overvoltage, overcurrent, reverse polarity and short-circuit prevention. Independent LED diagnostic indicators display power supply status, bus link state and single-channel fault alarms for rapid on-site troubleshooting, improving long-term stability of analog data acquisition and reducing measurement deviation risks under complex field wiring environments.

Medium to super-large thermal power plant Ovation WDPF distributed control systems, multi-unit integrated petrochemical process analog signal acquisition cabinets, full-process distributed temperature and pressure monitoring stations for metallurgical plants, multi-station automatic control systems of large municipal wastewater treatment plants, whole-plant flow & temperature signal acquisition racks for pulp & paper factories, multi-rack redundant central control rooms of traditional heavy industry, analog parameter remote monitoring automation platforms for energy & chemical continuous production lines, centralized DCS monitoring control systems for large-scale distributed energy storage power stations