Product Description

The A2H124-24FX (P0973BJ) is a high-density fiber-optic managed Ethernet switch designed specifically for the Foxboro I/A Series DCS architecture. It enables long-distance, high-integrity data transmission in industrial environments where electromagnetic interference (EMI) or distance constraints make copper cabling impractical.

Equipped with 24 dedicated fiber ports, this switch forms a robust network backbone for deterministic communication between distributed controllers, remote I/O, and supervisory systems. As a fully managed device, the P0973BJ supports advanced network segmentation and redundancy strategies, ensuring uninterrupted delivery of critical process data. Its compact footprint and rugged internal design meet the reliability demands of continuous, mission-critical automation systems.

Technical Specifications

Application Scenarios

The P0973BJ is commonly deployed in large-scale industrial facilities, including:

• Refineries and petrochemical plants

• Power generation stations

• Chemical processing units

Typical use cases include fiber backbone connectivity between control rooms and remote I/O cabinets, eliminating ground loop issues and maintaining signal integrity over long distances.

Technical FAQ

Q: Does the P0973BJ support single-mode or multi-mode fiber?
A: The A2H124-24FX is typically supplied for multi-mode fiber suitable for intra-plant distances. Fiber type and transceiver compatibility should be verified against the existing cable plant.

Q: Is a specific Foxboro software version required?
A: Yes. For full diagnostic visibility and managed operation within the I/A Series or EcoStruxure™ Foxboro environment, the switch must be supported by the system configurator software.