Technical Specifications: Input Signal Type: Dry‑contact input signal, digital status signal Input Voltage Range: 24 VDC to 125 VDC Input Impedance: Standard industrial input impedance value Input Current: Typical operating current, maximum limited current Response Time: ≤15 ms Channel‑to‑Backplane Isolation Voltage: 500V RMS Transient Surge Suppression: 1500V Operating Power Supply: Backplane bus power supply Communication Protocol: Internal backplane bus for UR system Operating Temperature: -40 °C to +85 °C Storage Temperature: -50 °C to +85 °C Relative Humidity: 5%‑95%, non‑condensing Mechanical Dimension: Standard full‑height single‑slot module for UR rack Certifications: CE, UL, IEC 61000 EMC standard compliance
Functional Features: Supports multi‑channel signal conditioning and level conversion. Provides hardware filtering to suppress industrial electromagnetic interference. Implements hardware redundant design for channel fault tolerance. Built‑in comprehensive self‑diagnosis for channel status, power supply and internal circuit. 
Application Scenarios: Electric power substation control and monitoring system. Power plant protection cabinet signal processing. Heavy‑industry power distribution safety control system. Intelligent power monitoring equipment signal acquisition. Power industry safety interlock control loops.
Structural Characteristics: Standard single‑slot plug‑in structure matching Multilin UR series rack. Front panel with status indicator LED lamps for power, channel fault and communication. Field signal terminals located at module front side for wiring maintenance.
Working Principle: Field status signals enter through terminal connectors. Hardware filter circuits eliminate high‑frequency interference signals. Isolation optocouplers complete electrical isolation between field circuit and internal logic circuit.
Installation Requirements: Install the module into designated slot of Multilin UR series standard rack. Ensure rack ground connection strictly follows system grounding specification. Field signal wiring must use shielded twisted‑pair cables. Separate power cable and signal cable routing to avoid crosstalk.
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