Technical Specifications: Input Signal Type: RS232 / RS422 / RS485 serial signal, VME bus differential signal Input Voltage Range: +5VDC bus power supply Input Impedance: Standard serial interface impedance Input Current: Typical operating current, maximum limited current Baud Rate Range: Configurable serial baud rate Channel‑to‑Backplane Isolation Voltage: 500V RMS Transient Surge Suppression: 1500V Operating Power Supply: +5VDC Communication Protocol: VME64 backplane bus protocol, multi‑standard serial protocol Operating Temperature: 0 °C to +60 °C Storage Temperature: -50 °C to +85 °C Relative Humidity: 5%‑95%, non‑condensing Mechanical Dimension: Standard 6U single‑slot VME rack module Certifications: CE, UL, industrial EMC standard compliance
Functional Features: Multi‑channel RS232, RS422, RS485 serial communication function. Hardware filter for restraining industrial electromagnetic interference. Hardware fault detection for serial channel status. Built‑in comprehensive self‑diagnosis for channel, power supply and internal hardware. Hot‑swap operation cannot be performed with system powered‑on. Real‑time channel fault alarm and status reporting to host CPU. Galvanic isolation between field serial side and VME backplane bus. Flexible configuration for baud rate, parity and other serial parameters.
Application Scenarios: VME‑bus industrial control rack. Serial instrument and field device data access. Serial equipment interconnection for power plant control system.
Structural Characteristics: Standard 6U single‑slot plug‑in VME module mechanical form. Front‑panel LED indicators for power, channel fault and communication activity. Front‑panel serial interface terminals for field device connection.
Working Principle: Field serial signals access module via front‑panel terminals. Hardware filter removes electromagnetic noise. Isolation circuit separates field serial circuit and internal logic circuit. Serial controller chip completes data receiving, sending and protocol processing.
Installation Requirements: Mount module into specified slot of standard 6U VME rack. Cabinet grounding must strictly follow system technical specification. Field serial wiring shall adopt shielded cables. Separate serial signal cables from high‑power cables.
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