Foxboro RH924JH Control Module

Overview

Specifications

• Fiber Type: Multimode fiber (62.5/125 µm)
• Data Rate: Up to 10 Mbps
• Max Distance: 2 km (multimode)
• Signal Interface: Redundant 2 Mbps module fieldbus (electrical → optical)
• Operating Temp: -40°C to +70°C
• Humidity: 0–95% RH (non-condensing)
• Protection: IP66 (enclosed)
• Dimensions: 83 × 64 × 25.4 mm
• Weight: ~0.2 kg
• Housing: Aluminum alloy + polycarbonate
• Certifications: CE, UL, RoHS, Class G3 (harsh environment)

Key Features

• Electrical-to-Optical Conversion: Isolates and extends fieldbus communication over fiber, eliminating EMI/RFI interference.
• Redundant Fieldbus Support: Works with redundant 2 Mbps module fieldbus (A/B paths) for high availability.
• Long-Distance Capability: Up to 2 km multimode fiber, ideal for large process plants.
• Harsh Environment Rated: Wide temperature range (-40°C to +70°C) and IP66 protection.
• Compact & Rugged: Lightweight, industrial-grade enclosure for panel or field mounting.
• Hot-Swappable: Replace without system shutdown.

Applications

• Process control (oil & gas, petrochemical, power, refining)
• Long-distance DCS network links
• High-noise industrial environments
• I/A Series system expansion

Compatibility

• System: Foxboro I/A Series DCS (FCP280, FBM214B, FBM216B, etc.)
• Fieldbus: Redundant 2 Mbps module fieldbus
• Fiber: Multimode 62.5/125 µm