Product Overview

The Foxboro A2H124-24FX P0973BJ​ is a managed industrial Ethernet switch designed for high-reliability process automation and control networks. Manufactured as part of the Enterasys SecureStack A2 product family and supplied under the Foxboro part number P0973BJ, this switch provides 24 fixed 100BASE-FX multimode fiber ports, making it particularly suitable for fiber-optic communication between controllers, operator workstations, remote I/O equipment, and other industrial network nodes. The Foxboro A2H124-24FX P0973BJ​ also includes two SFP or Mini-GBIC uplink slots and two 10/100/1000Base-T RJ45 ports, supporting flexible network topologies and higher-speed connections to core infrastructure.This switch is commonly deployed in Foxboro I/A Series DCS environments, where it forms part of the Plant LAN, OPC interface layer, or terminal-access infrastructure. Its all-fiber base-port architecture provides electrical isolation and resistance to electromagnetic interference, allowing long-distance communication without the distance and noise limitations of copper cabling. With a switching capacity of 12.8 Gbps in standalone operation and support for stacking multiple A2-series units, the Foxboro A2H124-24FX P0973BJ​ can scale to meet the requirements of complex industrial networks.The Foxboro A2H124-24FX P0973BJ​ supports a range of Layer 2 management features, including IEEE 802.1Q VLANs, 802.1p Class of Service, link aggregation, Spanning Tree and Rapid Spanning Tree protocols, and port security. Management is available through a command-line interface, Web-based interface, Telnet, and SNMP versions 1, 2c, and 3. With a compact 19-inch 1U rack-mount form factor, universal 100–240V AC power input, and optional redundant power supply configuration, the switch is well suited to control-room, cabinet, and distributed I/O installations. As a mature and field-proven component, the Foxboro A2H124-24FX P0973BJ​ remains an important spare for maintaining legacy I/A Series and process-control network architectures.

Technical Specifications