Description
FOXBORO A4H124-24TX A4 Series Ethernet Switch Module
Basic Parameters
- Port Configuration: Provides 24 10/100Mbps adaptive RJ-45 electrical ports (100Base-TX), supporting full-duplex mode.
- Switching Characteristics: Backplane bandwidth of 4.8Gbps, packet forwarding rate of 3.57Mpps, supporting wire-speed non-blocking switching.
- MAC Address Table: 8K entries, supporting MAC address learning, aging, and static configuration.
- Power Supply Specifications: Dual redundant 24VDC input (18-36VDC), power consumption ≤30W, supporting hot swapping.
- Mechanical Dimensions: 440mm (width) × 44mm (height) × 280mm (depth), suitable for standard 19-inch rack or DIN rail installation.
- Environmental Adaptability: Operating temperature ranges from -40°C to +70°C, storage temperature ranges from -40°C to +85°C, humidity of 5%-95% (non-condensing), impact resistance of 15g (11ms), vibration resistance of 1g (10-150Hz).
Functional Features
- Advanced Network Protocols: Supports VLAN (IEEE 802.1Q), QoS (IEEE 802.1p), RSTP/MSTP (IEEE 802.1w), IGMP Snooping v1/v2/v3, providing network redundancy and traffic optimization.
- Management Methods: Supports CLI (serial port/Telnet), Web interface, SNMP v1/v2c/v3, and RMON, and can be centrally configured through the FOXBORO I/A Series system.
- Fault Diagnosis: Supports port mirroring, link aggregation (LACP), ring network redundancy (STP/RSTP), and redundant power supply monitoring, providing LED status indicators and alarm outputs.
- Security Features: Supports port security (MAC address binding), DHCP Snooping, ARP protection, and Access Control Lists (ACL) to enhance industrial network security.

Application Scenarios
- Industrial Automation: Connects PLCs, DCS, SCADA systems, and on-site equipment to build real-time control networks.
- Power Industry: Used in substation automation, unit monitoring, and distributed energy management, supporting the IEC 61850 standard.
- Transportation: Suitable for communication systems in railways, subways, and highway tunnels, providing highly reliable data transmission.
- Smart Factories: Builds workshop-level industrial Ethernet, connects robots, AGVs, and IoT devices, supporting Industry 4.0 applications.
- Petrochemical Industry: Connects on-site instruments through intrinsic safety interfaces in hazardous areas, meeting ATEX/IECEx certification requirements.
Typical Application Cases
- Automobile Manufacturing Production Line: Connects 20 PLCs and 30 robot controllers to achieve millisecond-level synchronous control, supporting VLAN isolation between production areas and management networks.
- Wind Farm Monitoring System: Deployed in -30°C environments, connects 50 wind turbine converters through ring network redundancy, and the RSTP protocol ensures fault recovery time < 50ms.
- Water Treatment Plant Automation: Connects SCADA systems of 12 distributed pump stations, supports QoS priority scheduling, and ensures priority transmission of key control commands.
Technical Advantages
- Industrial-grade Design: Wide temperature operating range, redundant power supply, and fanless heat dissipation, adapting to harsh environments.
- High Reliability: Supports multiple redundancy protocols, with a Mean Time Between Failures (MTBF) > 300,000 hours.
- Seamless Integration: Fully compatible with the FOXBORO I/A Series control system, simplifying the network architecture.
- Security Protection: Multi-layer security mechanisms resist network attacks, complying with industrial information security standards.








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