Technical Specifications:

• Product Series: FA-M3 Series
• Model Number: NFDR541-PS2
• Network Interfaces: 3 Ethernet ports (10/100/1000BASE-T)
• Firewall Throughput: Up to 1 Gbps
• VPN Support: IPsec VPN, SSL VPN
• Supported Industrial Protocols: Modbus TCP, EtherNet/IP, PROFINET, OPC UA, BACnet/IP, CC-Link IE, MELSEC, SYSMAC
• Inspection Method: Stateful Packet Inspection (SPI) with Deep Packet Inspection (DPI)
• Operating Temperature: 0°C to +55°C
• Power Supply: 24 VDC (redundant power input supported)
• Dimensions: Approximately 100 × 120 × 45 mm (W×H×D)
• Weight: Approximately 0.8 kg
• Certifications: IEC 62443-4-2, UL/cUL Class I Div.2, ATEX Zone 2 (configuration dependent)

Functional Features:

• White-list based communication control — only permits pre-approved industrial communications
• Intrusion Detection/Prevention System (IDS/IPS) specifically tuned for OT protocols
• Network segmentation capability to isolate critical control zones (Level 3/Level 2 separation)
• Centralized security management via Yokogawa network security console
• Real-time monitoring and logging of all network traffic events
• Fail-safe design — maintains network availability even during security event handling
• Role-based access control (RBAC) for device management

Performance Parameters:

• Maximum Concurrent Connections: 500,000+
• VPN Tunnels Supported: Up to 100 simultaneous tunnels
• Packet Filtering Latency: Less than 100 microseconds
• Throughput: Line-rate filtering at 1 Gbps
• Availability: 99.999% (designed for 24/7 operation)

Material Composition:

• Housing: Aluminum alloy (AL6063) with corrosion-resistant anodized coating
• Enclosure Rating: IP30 (indoor installation)
• Connector Plating: Gold-plated RJ45 connectors
• PCB: FR-4 glass epoxy with conformal coating

Structural Features:

• DIN-rail mounting (EN 60715, 35mm top-hat rail)
• Front panel LED indicators: Power, Network Activity, Alarm, VPN Status
• Compact form factor designed for panel or DIN-rail mounting in control cabinets
• Lockable front panel for physical security

Working Principle: The NFDR541-PS2 inspects all network traffic passing between industrial control network segments using Deep Packet Inspection (DPI) technology at the application layer. It understands industrial protocol structures natively, enforcing whitelist-based access control policies where only explicitly authorized communications are permitted. The device maintains stateful connection tracking and performs real-time anomaly detection using both signature-based and behavior-based IDS/IPS engines. All traffic is logged and can be forwarded to a central Security Information and Event Management (SIEM) system.

Advantage Highlights:

• Purpose-built for OT/ICS environments — native understanding of all major industrial protocols
• Zero-trust architecture implementation at the network perimeter
• Minimal latency impact on real-time control network performance
• Seamless integration with Yokogawa CENTUM VP/CS3000 DCS systems
• Centralized security management reduces operational overhead

Applicable Industries:

• Oil & Gas (upstream, midstream, downstream, LNG)
• Chemical & Petrochemical
• Power Generation (thermal, nuclear, hydroelectric, renewable)
• Water & Wastewater Treatment
• Pharmaceutical Manufacturing
• Pulp & Paper
• Mining & Minerals
• Food & Beverage

Model Series:

• FA-M3 Series: NFDR541-PS2 (standard), NFDR542-PS2 (higher capacity with 4 ports)
• Related products: NFDR341 (legacy), NFDR541-RS2 (redundant system)

Installation Requirements:

• DIN-rail mounting per EN 60715, 35mm top-hat rail
• Ambient temperature: 0°C to +55°C
• Relative humidity: 10% to 85% RH (non-condensing)
• Vibration resistance: Conforms to IEC 60068-2-6 (10–55 Hz, 1.5 mm amplitude)
• Clearance: Minimum 50 mm above and below for adequate ventilation
• Grounding: Proper protective earth (PE) grounding required
• Network topology: Insert between Level 3 (enterprise) and Level 2 (control) networks

Usage Precautions:

• Do not expose to direct sunlight or corrosive atmospheres
• Firmware updates must be performed exclusively via Yokogawa-approved channels
• Regular security policy audits are mandatory per IEC 62443
• Backup configuration before any parameter changes
• Replace batteries (if applicable) per the maintenance schedule
• Do not connect unauthorized devices to protected network segments