Products Description
Enterasys A4H124-24FX Industrial Ethernet Switch
Enterasys A4H124-24FX is a rack-mount industrial managed Ethernet switch used for Foxboro I/A Series DCS control systems. It provides 24 SFP fiber ports for long-distance network communication, responsible for interconnecting DCS controllers, workstations and field I/O modules to build a stable plant control network backbone.

This switch supports stacking function, VLAN, QoS and SNMP network management, with high anti-interference performance suitable for harsh factory environments. It is widely used as spare replacement parts for power, petrochemical and chemical plant DCS cabinet maintenance and network upgrade projects.
Main Specifications
- Brand: Enterasys / Foxboro; Model: A4H124-24FX; Type: Managed Industrial Ethernet Switch
- Port: 24 x SFP fiber slots; Switching Capacity: 48Gbps
- Forwarding Rate: 35.7Mpps; Supported Protocol: 802.1Q VLAN, 802.1p QoS, SNMP, SSH, Telnet
- Expansion: Support stacking up to 8 units; Installation: 19-inch rack mount
- Operating Temp: 0℃ ~ +50℃; Industrial EMC protection for control room
- Management: Web GUI, CLI, SNMP v1/v2c/v3; Redundant power supply support
- Supply Status: Spare network switch for Foxboro I/A DCS system
Core Functions
- Build redundant fiber network backbone for Foxboro I/A Series DCS distributed control system.
- 24 SFP slots for flexible fiber media selection to realize long-distance data transmission.
- Support switch stacking to expand network ports and realize unified device management.
- VLAN and QoS functions isolate control data and ensure real-time priority of control messages.
- SNMP/SSH network monitoring, online fault diagnosis and alarm for network status.
- Rack-mounted design for installation inside DCS control cabinets, stable for continuous operation.
Application Scenarios
- Foxboro I/A Series DCS control cabinets in power, petrochemical and chemical plants.
- Industrial control network backbone construction with long-distance fiber communication requirements.
- Replacement of failed managed switches in existing DCS control room network racks.
- Spare parts inventory for automation maintenance teams of heavy industrial facilities.
- Network reconstruction and upgrade of legacy Foxboro distributed control systems.
- Redundant network architecture for industrial process control to improve system reliability.
FAQ
- Q: What is A4H124-24FX?
A: It is Enterasys managed industrial Ethernet switch, specially designed for Foxboro I/A Series DCS control network with 24 SFP fiber ports. - Q: What is the difference between A4H124-24FX and A2H124-24FX?
A: They belong to different product generations; A4 series is the upgraded version with enhanced switching performance and richer management features. - Q: Can multiple switches be stacked?
A: Yes, this model supports stacking, up to 8 switches can be stacked together for unified network management.

Tags: Enterasys A4H124-24FX Industrial Ethernet Switch Enterasys A4H124-24FX
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