Description
Foxboro A4H254-16F 16-Port All-Fiber Industrial Layer 2 Managed Ethernet Switch
Detailed Product Information
The Foxboro A4H254-16F is a high-performance, ruggedized all-fiber industrial Layer 2 managed Ethernet switch, belonging to the Foxboro A4 series Fast Ethernet switch family. It adopts a store-and-forward stackable architecture, purpose-built to deliver ultra-reliable long-distance industrial network transmission for large-scale distributed control system (DCS) network topologies. Equipped with 16 full fiber optic ports, it eliminates the signal distance limitation of traditional copper Ethernet, making it the ideal choice for industrial sites that require long-distance network interconnection across large plant areas. Its industrial-grade construction meets strict Class G3 harsh environment certification, supporting 24/7 non-stop continuous operation in petrochemical, power generation, oil & gas and other mission-critical industrial facilities.
A4H254-16F
Technical Specifications
- Manufacturer: Foxboro (USA)
- Part Number: A4H254-16F
- Product Type: 16-Port All-Fiber Layer 2 Managed Industrial Ethernet Switch
- Port Configuration: 16 100BASE-FX fiber optic Ethernet ports
- Switching Architecture: Store-and-forward stackable design
- Maximum Transmission Distance: Up to 20 km per port (depending on fiber type and SFP module selection)
- Operating Environment Rating: Industrial-grade Class G3 harsh environment certified
- Operating Temperature Range: -20°C to +70°C
- Electromagnetic Interference Resistance: Meets IEC 61000 industrial EMC standard
- Condition: Brand new in stock
- Warranty: 12 months official manufacturer warranty
- Country of Origin: USA
- Core Features: Flexible stacking capability, long-distance fiber transmission, robust anti-electromagnetic interference performance
Compatibility
- Natively interoperable with Foxboro I/A Series and Evo distributed control system industrial network architectures
- Fully compatible with standard industrial Ethernet protocols, mainstream industrial SFP fiber modules and long-distance field network devices
- Seamlessly integrates with Foxboro industrial network management software for full switch configuration, performance monitoring and fault diagnostics
- Matches with standard industrial control cabinet DIN rail mounting systems and 19-inch standard rack mounting accessories
- Supports stacking with other Foxboro A4 series Fast Ethernet switches to build large-scale long-distance industrial network topologies
Installation Pitfalls
- Never install the A4H254-16F in a non-ventilated enclosed space without proper heat dissipation design. Overheating will cause unexpected switch reboot and network communication interruption.
- Do not connect fiber optic cables with length exceeding the rated maximum transmission distance of the matched SFP module directly to the ports without optical amplifiers. Excessively long fibers will cause severe optical signal attenuation and data transmission errors.
- Avoid bending fiber optic cables connected to this switch below the minimum rated bend radius. Excessive bending will cause permanent fiber damage and signal loss.
- Never perform hot-swap replacement while critical process control loops relying on this industrial network are in automatic operation without pre-engaging the redundant network path. This action will cause momentary network disconnection and trigger unplanned process trips.
- Do not deploy A4H254-16F switches with drastically different firmware revisions in the same stacking group. Inconsistent firmware versions will cause asynchronous network timing and unexpected communication failure during stack operation.
A4H254-16F
Typical Application Scenarios
- Petrochemical refining operations: Serves as the long-distance core industrial network switch connecting distributed control system nodes across different process units in large refinery plants.
- Chemical processing plants: Leverages its all-fiber port design to build high-reliability long-distance industrial Ethernet networks for large chemical plant areas with strong electromagnetic interference.
- Power generation and utilities: Deploys in thermal power plant DCS control cabinets, providing stable long-distance network communication for boiler control systems and remote auxiliary equipment monitoring networks.
- Oil and gas production facilities: Adapts to the harsh operating environment in large onshore oilfield and offshore platform control areas, supporting 24/7 non-stop operation for long-distance process control and safety monitoring networks.
- Large industrial manufacturing parks: Acts as the long-distance industrial network backbone switch, connecting multiple distributed control workshops across the entire plant area to build a unified high-reliability industrial Ethernet network.
Recommended Supporting Components
- Foxboro certified industrial-grade single-mode/multi-mode fiber optic patch cables for long-distance interference-free high-speed data transmission
- Industrial-grade DIN rail or 19-inch rack mounting kit for secure installation in standard industrial control cabinets
- Foxboro official industrial network management software for switch configuration, performance monitoring and fault diagnostics
- Redundant industrial power supply unit to ensure uninterrupted power supply for the switch
- Industrial optical power meter for on-site fiber link signal strength testing and routine maintenance operations
Related Part Number Recommendations
- A4H254-8F8T: Foxboro 16-port 8-copper + 8-fiber hybrid industrial managed Ethernet switch, for industrial network scenarios that require both copper and fiber connectivity
- A4H254-8TX: Foxboro 16-port all-copper industrial managed Ethernet switch, for local industrial network scenarios that do not require long-distance fiber transmission
- A4H254-24G: Foxboro 24-port Gigabit industrial managed Ethernet switch, for high-bandwidth industrial network application scenarios
- A4H254-RM: Foxboro redundant industrial Ethernet switch module, for high-availability industrial network architecture deployment
- A4 Series unmanaged industrial Ethernet switches: For cost-effective basic industrial network connection scenarios
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