YOKOGAWA NFJT100-S10E

Industrial-grade security features:

The NFJT100-S10E is equipped with stateful inspection, intrusion prevention, and access control lists, specifically designed to protect industrial protocols such as Modbus, Ethernet/IP, and Profibus. In a power plant, this ensures that only authorized devices and commands can access critical control systems (like the CP461-50 PLC), preventing malicious attacks that could disrupt power generation. The firewall’s ability to detect and block abnormal traffic patterns helps identify potential cyber threats before they cause damage.

Rugged design for harsh environments:

With an operating temperature range of -40°C to 70°C, the NFJT100-S10E can withstand extreme conditions in industrial settings. In an offshore oil platform, it continues to function reliably despite high humidity, salt spray, and temperature fluctuations, ensuring continuous protection of the network connecting sensors, pumps, and control systems. Its rugged construction also provides resistance to vibration (10-2000Hz, 15g peak) and shock (30g peak), making it suitable for installation in mobile industrial equipment.

Secure remote access with VPN:

Supporting up to 50 IPsec and SSL VPN tunnels, the NFJT100-S10E enables secure remote access to industrial networks. In a large manufacturing enterprise with multiple plants, this allows engineers to remotely monitor and troubleshoot equipment (connected via the ISC40G-TF-T1-05 switch) without compromising network security. The VPN encryption ensures that data transmitted between remote locations and the central network remains confidential and protected from interception.

Redundant power and high availability:

The NFJT100-S10E supports redundant 24V DC power inputs, ensuring uninterrupted security protection even if one power supply fails. In a chemical processing plant, where network security is critical for preventing unauthorized access to safety systems, this feature guarantees that the firewall remains operational during power disruptions. The firewall also supports failover capabilities, automatically switching to a backup firewall if the primary unit fails, maintaining continuous network protection.

Manufacturer:
Part number: YOKOGAWA NFJT100-S10E
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Description

1. Detailed parameter table

Parameter name Parameter value
Product model NFJT100-S10E
Manufacturer YOKOGAWA
Product category Industrial Network Firewall
Ports 10 x 10/100/1000BASE-T (RJ45) ports (8 x LAN, 2 x WAN)
Throughput 1 Gbps (firewall), 500 Mbps (VPN)
VPN Support IPsec, SSL VPN (up to 50 tunnels)
Security Features Stateful inspection, intrusion prevention, port forwarding, access control lists
Operating Temperature Range -40°C to 70°C
Power Supply 24V DC (redundant power input support)
Power Consumption ≤15W
Dimensions 140mm (W) x 100mm (H) x 60mm (D)
Weight Approximately 0.5kg
Certification IEC 61010-1, UL 508, CE, ATEX Zone 2
YOKOGAWA NFJT100-S10E

YOKOGAWA NFJT100-S10E

2. Product introduction

The YOKOGAWA NFJT100-S10E is a rugged industrial network firewall designed to provide advanced security for industrial automation networks in harsh environments. As a critical component in industrial cybersecurity, it safeguards communication between various devices such as PLCs (like the CP461-50), industrial switches (such as the ISC40G-TF-T1-05), HMIs, and remote monitoring systems.

This 10-port firewall offers a throughput of 1 Gbps for firewall functions and 500 Mbps for VPN connections, ensuring efficient data transmission without compromising security. Its compact design and wide operating temperature range (-40°C to 70°C) make it suitable for installation in challenging industrial settings where standard commercial firewalls would fail. The NFJT100-S10E supports redundant power input, enhancing network security reliability by preventing downtime due to power supply failures. Ideal for industries including energy, manufacturing, and transportation, the YOKOGAWA NFJT100-S10E provides a robust security barrier to protect industrial networks from unauthorized access and cyber threats.

3. Core advantages and technical highlights

Industrial-grade security features:

The NFJT100-S10E is equipped with stateful inspection, intrusion prevention, and access control lists, specifically designed to protect industrial protocols such as Modbus, Ethernet/IP, and Profibus. In a power plant, this ensures that only authorized devices and commands can access critical control systems (like the CP461-50 PLC), preventing malicious attacks that could disrupt power generation. The firewall’s ability to detect and block abnormal traffic patterns helps identify potential cyber threats before they cause damage.

Rugged design for harsh environments:

With an operating temperature range of -40°C to 70°C, the NFJT100-S10E can withstand extreme conditions in industrial settings. In an offshore oil platform, it continues to function reliably despite high humidity, salt spray, and temperature fluctuations, ensuring continuous protection of the network connecting sensors, pumps, and control systems. Its rugged construction also provides resistance to vibration (10-2000Hz, 15g peak) and shock (30g peak), making it suitable for installation in mobile industrial equipment.

Secure remote access with VPN:

Supporting up to 50 IPsec and SSL VPN tunnels, the NFJT100-S10E enables secure remote access to industrial networks. In a large manufacturing enterprise with multiple plants, this allows engineers to remotely monitor and troubleshoot equipment (connected via the ISC40G-TF-T1-05 switch) without compromising network security. The VPN encryption ensures that data transmitted between remote locations and the central network remains confidential and protected from interception.

Redundant power and high availability:

The NFJT100-S10E supports redundant 24V DC power inputs, ensuring uninterrupted security protection even if one power supply fails. In a chemical processing plant, where network security is critical for preventing unauthorized access to safety systems, this feature guarantees that the firewall remains operational during power disruptions. The firewall also supports failover capabilities, automatically switching to a backup firewall if the primary unit fails, maintaining continuous network protection.

YOKOGAWA NFJT100-S10E

YOKOGAWA NFJT100-S10E

4. Typical application scenarios

In a smart grid system, the NFJT100-S10E is deployed to secure the communication between substations, control centers, and smart meters. It filters traffic between different network segments, allowing only authorized data exchange between the CP461-50 PLCs managing power distribution and remote monitoring systems. The firewall’s VPN capability enables secure remote access for engineers to perform maintenance and updates, while its intrusion prevention system blocks cyber attacks targeting the grid’s critical infrastructure.

In a large automotive manufacturing plant, the NFJT100-S10E protects the network connecting production lines, robotic systems, and enterprise systems. It separates the industrial control network (with devices like the ISC40G-TF-T1-05 switch) from the corporate network, preventing unauthorized access to production data and control commands. The firewall’s access control lists ensure that only specific devices can communicate with the PLCs controlling the assembly robots, reducing the risk of production disruptions due to cyber incidents.

In a transportation system, the NFJT100-S10E is installed to secure the network connecting traffic management systems, surveillance cameras, and traffic lights. It monitors and filters data transmitted between these devices and the central control system (powered by the CP461-50 PLC), preventing unauthorized access that could lead to traffic disruptions. The firewall’s rugged design allows it to operate reliably in outdoor cabinets, withstanding extreme temperatures and weather conditions.

5. Related model recommendations

  • NFJT100-S05E: A 5-port industrial firewall, suitable for smaller industrial networks where fewer devices need to be connected, offering the same security features as the NFJT100-S10E.
  • NFJT200-S10E: A high-performance firewall with a throughput of 2 Gbps (firewall) and 1 Gbps (VPN), supporting up to 100 VPN tunnels, ideal for larger industrial networks requiring higher bandwidth.
  • ISC40G-TF-T1-05: The industrial Ethernet switch that pairs with the NFJT100-S10E, providing reliable network connectivity while the firewall ensures security.
  • CP461-50: The high-performance PLC that benefits from the security protection of the NFJT100-S10E, ensuring secure communication with other devices in the industrial network.
  • NFJT100-S10E-R: A ruggedized version of the NFJT100-S10Ewith enhanced resistance to environmental factors, designed for use in extremely harsh environments such as mining and desert operations.
  • PS24-3A-R: A redundant 24V DC power supply that pairs with the NFJT100-S10E, ensuring reliable power input for the firewall in critical applications.

6. Installation, commissioning and maintenance instructions

Installation preparation

Before installing the NFJT100-S10E, ensure the mounting location is clean, dry, and free from excessive vibration. The firewall can be mounted on a DIN rail or directly to a panel using the provided mounting brackets. Prepare tools such as a torque screwdriver (0.5-1.0Nm), wire cutters, and a network cable tester.

Verify that the power supply is 24V DC and within the specified voltage range (18-36V DC). For redundant power configuration, connect two separate 24V DC power supplies to the firewall’s power inputs, ensuring proper polarity. Use shielded twisted-pair Ethernet cables for all connections, with the shield grounded at both ends to minimize electromagnetic interference. Configure the firewall’s initial settings, including IP address, subnet mask, and default gateway, before connecting it to the industrial network.

Maintenance suggestions

Perform monthly visual inspections of the NFJT100-S10E to check for loose connections, dust accumulation, or signs of physical damage. Clean the firewall’s surface with a dry, lint-free cloth if necessary, taking care not to disconnect any cables. Monitor the firewall’s status indicators regularly to check for power, network connectivity, and security alerts—any unusual indicators may indicate a security or network issue.

Update the firewall’s firmware quarterly to ensure it has the latest security patches and feature enhancements. Review and update access control lists and security policies as needed to adapt to changes in the industrial network. Test VPN connections monthly to ensure secure remote access remains functional. If a security breach or firewall malfunction is detected, refer to the troubleshooting guide or contact YOKOGAWA technical support immediately.

Store spare firewalls in a dry, temperature-controlled environment, preferably in their original packaging, to protect them from damage. Keep a backup of the firewall’s configuration settings to facilitate quick replacement and recovery in case of a failure.

7. Service and guarantee commitment

YOKOGAWA provides a 5-year warranty for the NFJT100-S10E, demonstrating confidence in its rugged design and reliable security performance. Each firewall undergoes rigorous testing, including temperature cycling, vibration testing, and security vulnerability assessments, to ensure compliance with industrial standards and cybersecurity best practices.

Our global technical support team includes cybersecurity specialists with expertise in industrial networks, offering 24/7 assistance for installation, configuration, and troubleshooting. On-site support is available in major industrial regions, with a response time of 48 hours for non-critical issues and 24 hours for critical security incidents. YOKOGAWA provides detailed security configuration guides and best practices specific to the NFJT100-S10E, helping customers implement effective security measures for their industrial networks. Training programs on industrial cybersecurity and firewall management are also available to help customers maximize the security capabilities of the NFJT100-S10E. Extended warranty options and cybersecurity assessment services are offered to ensure long-term network security and customer peace of mind.

 

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