Technical Specifications Communication Interface Type: Dual redundant configurable RS‑232 / RS‑485 serial port Communication Baud Rate: 300 bps ~ 115200 bps configurable Interface Isolation Voltage: 500 V RMS Transient Surge Suppression: 1500 V Operating Power Supply: 24 VDC from system backplane bus Backplane Communication Protocol: Proprietary 2 Mbps HDLC fieldbus for I/A Series system Operating Temperature: ‑40 ℃ to +70 ℃ Storage Temperature: ‑50 ℃ to +85 ℃ Relative Humidity: 5%‑95%, non‑condensing Mechanical Dimension: Standard single‑slot plug‑in module for Foxboro I/A Series rack Certifications: CE, UL, ATEX, IEC 61508 functional safety compliance
Functional Features Supports dual‑channel redundant serial communication with configurable RS‑232 / RS‑485 physical layer. Automatic channel switch‑over when primary serial communication channel fails. Hardware filtering function for restraining industrial electromagnetic interference noise. Galvanic isolation between external serial port and internal rack backplane circuit. Comprehensive self‑diagnosis for communication link error, frame error, power supply and internal circuit faults. Supports hot‑swap operation under system running condition. Real‑time fault alarm and communication status reporting to host control node. 
Application Scenarios Process industry distributed control system(DCS). Petrochemical plant DCS communicating with third‑party analyzer and auxiliary controller. Oil & gas production unit serial device redundant data transmission. Chemical plant DCS and Modbus‑RTU field equipment interconnection. Power plant main control cabinet serial communication interface for auxiliary system docking. Critical automation system requiring high‑reliability serial data interaction.
Structural Characteristics Standard single‑slot plug‑in structure matching Foxboro I/A Series rack. Front panel equipped with status LED indicators for power supply, primary channel status, backup channel status and communication fault.
Working Principle External serial device signals flow into module through front‑side serial terminals. Hardware filter circuit filters high‑frequency interference noise. Isolation circuit completes electrical isolation between external serial bus and rack internal backplane circuit.
Installation Requirements Insert module into designated slot of Foxboro I/A Series standard rack.
There are no reviews yet.