Technical Specifications:​ 16 independent digital input channels; 24 VDC nominal input logic; internal bus communication interface; approximately 150 mm x 115 mm x 40 mm body; approximately 0.55 kg; IP20 enclosure; operating temperature -15°C to +70°C.

Function Features:​ Channel status reporting through front indicators; galvanic separation between field contacts and controller bus in the system design; DIN rail mounting; support for dry-contact and active 24 V signal types according to the configured version.

Application Scenarios:​ Main engine and auxiliary machinery run-status monitoring; ballast valve feedback; bilge and tank level switch alarms; breaker position monitoring in marine power systems; general industrial sequential logic input.

Performance Parameters:​ 24 VDC input threshold; fast debounce and filtering set by system configuration; bus update cycle defined by the host controller and UCS or equivalent engineering tool.

Material Composition:​ Industrial printed circuit board, plug-in terminal block, molded insulating housing, metal DIN rail clamp.

Structural Characteristics:​ Compact rectangular module with front wiring terminals, bus connector on the base, address configuration by dip switch or software according to system topology.

Working Principle:​ Field contact or 24 V signal enters the input circuit, passes filtering and isolation, is evaluated as logic high or low, and is transmitted to the controller through the internal bus for alarm, interlock and status processing.

Installation Requirements:​ Mount on standard DIN rail inside a protected cabinet; isolate supply before installation; keep ventilation clearance; ground the shield of 0.5 to 1.5 mm² signal cable at the cabinet earth bar; assign a unique bus address.

Usage Precautions:​ Do not apply higher-than-rated field voltage; verify DNV, GL, LR or required class approval for the installed project; confirm address and input type before energizing; inspect terminal torque periodically in vibrating marine environments.