AI on Track: aROK 8120 Sets a New Standard for Rolling Stock Computing

As rail systems advance toward real-time intelligence and automation, on-board computing continues to face growing demands for performance, scalability, and reliability. NEXCOM has answered this challenge with a new generation of train computers, engineered to handle intensive AI workloads – even in the most demanding rolling stock environments. With enhanced processing power, GPU capabilities, and connectivity, the aROK 8120 is poised to redefine operational efficiency and safety.

Bringing AI-driven applications to the railway world

Building on the proven aROK 8110, the aROK 8120 introduces noteworthy advancements that bring AI-driven video analytics, predictive maintenance, and machine vision applications closer to the edge. Key applications include:

• Obstacle Detection: AI-powered cameras continuously analyze the track environment, helping trains respond proactively to obstacles and ensuring smoother, safer operations.
• Driver Fatigue Monitoring: Machine vision tracks driver behavior to support fatigue management and reduce human errors.
• Passenger Safety: Real-time monitoring of passenger behavior improves crowd management and operational efficiency, while supporting overall safety.
• Predictive Maintenance: Sensor data is leveraged to monitor train conditions, anticipate failures, and schedule maintenance before issues arise.

Advanced hybrid computing with AI acceleration

At the core of the aROK 8120 is the latest Intel^® Core™ Series 2 processor, featuring hybrid P-core and E-core architecture for efficient multitasking and faster AI inference. Supporting up to 96GB of DDR5 ECC memory, the system delivers a significant bandwidth increase over the previous generation, ensuring smoother data flow and faster response in AI object recognition and edge analytics.

To meet the growing complexity of autonomous and machine vision workloads, the aROK 8120 also integrates discrete GPUs such as NVIDIA^® GeForce RTX™ 5090. Combined with PCIe 5.0/4.0 expansion slots, the platform offers massive throughput for neural network processing, multi-camera video capture, and real-time data analysis.

Expanded connectivity for intelligent rail operations

As rail systems grow increasingly connected, high-speed data transfer and reliable communication are essential. The aROK 8120 rises to the challenge with four 2.5GbE PoE++ (IEEE 802.3bt) ports, each capable of powering smart IP cameras and sensors directly over Ethernet. Additional CAN FD and serial interfaces extend compatibility with railway control systems, while dual 5G NR, Wi-Fi 6, and GNSS/RTK support ensure stable connectivity across mobile environments.

For storage and data integrity, the system accommodates four 2.5” SATA SSDs with RAID 0/1/5/10 and a high-speed M.2 NVMe SSD, ideal for handling continuous multi-stream video and AI datasets.

Rugged reliability built for the tracks

Designed for mission-critical railway environments, the aROK 8120 complies with EN 50155 and EN 45545-2 railway standards, along with MIL-STD-810H for shock and vibration resistance. Its rugged aluminum enclosure, optimized thermal design, and wide operating temperature range of -30°C to 70°C ensure consistent performance across demanding field conditions. A DC 24V power input with ignition control provides stability in fluctuating power environments typical of rolling stock systems.

Scalable platform for AI on rails

From video-based passenger safety monitoring and driver assistance to predictive maintenance and energy optimization, the aROK 8120 is designed as a future-ready platform for intelligent rail infrastructure. Its flexible PCIe and M.2 expansion support, combined with cutting-edge processing and GPU acceleration, enable system integrators to deploy AI applications that continuously learn, adapt, and evolve.

With its leap in computing power, connectivity, and rugged reliability, the aROK 8120 sets a new benchmark for railway AI and edge computing — empowering the next generation of smart and connected rail transport systems.

Main Features

• Configurable for up to a 600W discrete graphics card
• Built-in high-performance Intel^® Core™ Processor (Series 2)
• Supports up to four PCIe 5.0/4.0 x16/x8/x4 slots for graphics card and GigE frame grabbers
• Ultra-speed M.2 Key M NVMe and four 2.5” SSDs for data integrity
• RAID 0/1/5/10 configurable for data security
• DC 24V non-isolated power input with ignition control
• Four 2.5GbE PoE ports, with support for PoE++ (IEEE 802.3bt)
• Rich communication interfaces: six USB 3.2, two CAN FD, and four COM ports
• Telemetric functionality with dual WWAN/5G NR, one WLAN, and GNSS/DR/RTK support
• Complies with MIL-STD-810H for vibration and shock resistance
• CE/FCC, UKCA, EN 50155, and EN 45545-2 certified

Ordering Information

aROK 8120-AC4F (P/N: 10A20812000X0)

System bare-bone, fan-kit, Intel^® Core™ 7/5/3 processor, 2 x DDR5 SO-DIMM, 4 x PoE, 1 x LAN, 6 x USB 3.2, 4 x serial, 4 x PCIe slot, DC 24V