The board adopts multi-layer high-temperature resistant FR-4 industrial PCB with full enclosed electromagnetic shielding layout, and each signal channel is equipped with 1000V AC/DC galvanic isolation between field wiring terminals and internal logic circuits to suppress electromagnetic interference generated by inverters, high-voltage switchgears and large rotating equipment in thermal power, petrochemical and metallurgical heavy industrial sites. Every module passes strict factory verification including 72-hour high-low temperature cyclic aging, full-channel signal accuracy calibration, long-time full-load communication burn-in and channel fault simulation test. It supports single-slot hot-swappable installation without shutting down the entire DCS system, and integrates multi-level hardware protections including surge suppression, overvoltage, overcurrent, reverse polarity and short-circuit prevention. Built-in independent LED diagnostic indicators display power supply, bus communication status and single-channel fault alarms, supporting rapid on-site troubleshooting, improving the precision and stability of field analog data acquisition, and reducing signal distortion and measurement failure risks caused by complex on-site wiring environments.

Medium & super-large thermal power plant Ovation WDPF distributed control systems, multi-unit integrated petrochemical process analog signal acquisition cabinets, full-process temperature & pressure distributed 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