Foxboro A4H124-24FX Fiber Switch | P0973JN | Managed Industrial Network Switch

Product Overview

The Foxboro A4H124-24FX (Part Number P0973JN) is a high-performance Fiber Optic Managed Switch designed for use in the Foxboro I/A Series® and Foxboro Evo™ Distributed Control Systems. Engineered for industrial-grade reliability, it provides fast and secure data communication across long distances, making it an essential component in critical process control networks. Its fiber optic connectivity ensures immunity to electromagnetic interference and enables extended network spans beyond traditional copper limitations.

With 24 high-speed fiber ports, redundant power support, and advanced management capabilities, the A4H124-24FX supports VLAN segmentation, QoS, and comprehensive security measures, maintaining uninterrupted operation in complex industrial environments.

Performance Highlights

High-Density Fiber Connectivity

• 24 Fiber Ports: Supports large-scale networks with long-distance communication

• Extended Reach: Fiber links maintain data integrity over kilometers, eliminating copper distance limitations

Industrial Reliability

• Managed Network Features: VLANs, QoS prioritization, and port-level diagnostics ensure traffic segregation and optimal performance

• Redundancy Protocols: Compatible with spanning tree and Foxboro proprietary redundancy schemes for rapid failover

Hardened Construction

• EMI/RFI Immunity: Fiber optic links are unaffected by high-voltage equipment or motor noise

• Fanless Cooling: High MTBF design operates reliably in industrial control cabinets without mechanical fans

Seamless Integration with Foxboro Networks

• Plug-and-Play Compatibility: Works directly with Foxboro workstations, controllers, and fieldbus modules

• Diagnostic Monitoring: SNMP-based diagnostics allow operators to track port health and link integrity in real time

Technical Specifications at a Glance

Typical Applications

• Central Control Rooms: Core switch connecting multiple nodes in Foxboro Evo or I/A Series networks

• Remote Instrument Enclosures (RIEs): Reliable fiber backbone connecting field hardware to control centers

• Industrial Process Networks: Ideal for large-scale process automation requiring EMI-resistant communication

FAQ

Q: Can the A4H124-24FX operate in harsh industrial environments?
A: Yes, its rugged design and fanless cooling make it suitable for control cabinets exposed to extreme temperatures and vibration.

Q: What kind of network protocols does it support?
A: Supports Ethernet, STP, VLAN, and SNMP for full management and monitoring capabilities.

Q: Is redundancy available for critical operations?
A: Yes, dual redundant power inputs and support for rapid spanning tree ensure continuous operation during failures.

Q: How far can fiber connections extend?
A: Fiber links can span several kilometers without signal loss, depending on transceiver type and network configuration.