Foxboro 0303481B Communication & Interface Module

Product Description

The Foxboro 0303481B is a high-performance communication and interface module engineered for Foxboro I/A Series distributed control systems (DCS). It enables robust, multi-protocol connectivity between controllers and field devices, ensuring accurate data exchange and seamless integration across industrial process automation networks.

Designed for modular installation, the 0303481B supports multiple serial channels with configurable half- or full-duplex operation, offering flexibility for diverse industrial instrumentation. Its compact form factor, combined with robust electrical protection, guarantees reliable performance in demanding environments such as chemical processing, oil & gas, power generation, pharmaceuticals, and water treatment.

Technical Specifications

• Model: 0303481B

• Product Type: Communication / Interface Module

• Manufacturer: Foxboro (USA)

• Series: I/A Series DCS

• Condition: Brand new, original packaging

• Warranty: 12 months

• Country of Origin: USA

Functionality & Communication

• Provides reliable communication between controllers and field devices

• Supported Protocols: Modbus RTU/TCP, RS485, HDLC, raw serial

• Channels: Multiple serial channels, configurable for half/full duplex

• Baud Rate Range: 300 bps to 115.2 kbps

Power & Environmental

• Power Supply: 24 VDC (supports redundant supply)

• Max Power Consumption: 8.5 W

• Operating Temperature: 0°C to +60°C (32°F to +140°F)

Mechanical Dimensions

• Size: 114 × 61 × 23 mm

• Weight: 0.3 kg

• Integration: Compatible with Foxboro I/A Series controllers and T2750 PAC systems

Key Features

• Multi-protocol communication for flexible device connectivity

• Reliable interface between controllers and field instruments

• Compact, modular design for easy cabinet installation

• Strong electrical protection for industrial reliability

• Seamless integration with Foxboro DCS architecture

Typical Applications

• Chemical plants: Connecting analyzers, transmitters, and controllers

• Oil & gas facilities: Supervising pipelines and refinery equipment

• Power generation: Linking turbine controllers and auxiliary systems

• Pharmaceuticals: Integrating specialized monitoring instruments

• Water treatment: Connecting conductivity, pH, and flow sensors to supervisory systems

FAQ

Q: How many serial channels does the 0303481B support?
A: It supports eight configurable serial channels, which can operate in half- or full-duplex mode.

Q: Is it compatible with other DCS brands?
A: It is optimized for Foxboro I/A Series and T2750 PAC systems. Third-party integration may require additional engineering.

Q: What communication protocols are supported?
A: Modbus RTU/TCP, RS485, HDLC, and raw serial are all supported.