Most detection systems avoid heat problems by staying large. Nexus Omni solves them in a smaller footprint—where heat is actually harder to manage.
Nexus Omni pushes the engineering envelope delivering full capability in a compact form factor, which makes thermal management harder, not easier. The real innovation isn’t just surviving heat—it’s doing it in a system small enough to deploy where others can’t.
Traffic cabinets are exposed to heat, cold, humidity, vibration, constrained airflow, and continuous operation year after year. Nexus Omni was designed for that operating reality. Installed inside the cabinet, Nexus Omni receives detection data from NoTraffic sensors, communicates with the traffic signal controller, connects to Mobility OS, and runs safety and performance applications—all within a compact 1U platform.
Designing for the Traffic Cabinet
Roadside cabinets can be unforgiving: airflow is limited, internal temperatures can rise quickly, and equipment may be stacked tightly around other devices.
When you compress processing, sensing, and communication into a smaller footprint, heat doesn’t just increase—it compounds.
Nexus Omni is built for these conditions. In a compact 8.5” x 12” footprint and 1U height (1¾”) that supports straightforward rack mounting, the engineering challenge of heat management is significant. Reliability starts with thermal design: controlled airflow, thermal monitoring, active cooling support, and cold-weather conditioning for demanding roadside conditions.
Engineered Airflow
Nexus Omni uses controlled front-to-back airflow instead of relying on open space above or below the unit. Air enters through the front, crosses critical internal zones, and exits through the rear, preserving installation flexibility in dense cabinet environments. The compact 1U form factor helps agencies reclaim cabinet space, simplify installation, and maintain cleaner layouts without adding unnecessary cabinet complexity.
Venturi Airflow
Nexus Omni uses a Venturi-based airflow design to improve heat removal in tight cabinet conditions. As air moves through a constricted section, it accelerates and draws in surrounding air through entrainment, increasing airflow where open space and natural airflow are limited. The dual-fan design provides redundancy and continued operation in the rare event that one fan becomes obstructed.
Component-level thermal monitoring
Nexus Omni monitors key internal components to track thermal behavior and identify abnormal trends, helping distinguish normal variation from cabinet-level risks such as blocked vents, cabinet crowding, failed fans, solar loading, or installation-specific airflow restrictions. Temperature alerts can be monitored by NoTraffic’s Network Operations Center, giving agencies earlier visibility before cabinet conditions affect intersection performance.
Testing Highlights
Nexus Omni was validated across environmental, mechanical, electrical, airflow, corrosion, and transportation stress conditions while maintaining full functionality across major assemblies and interfaces.
- Compliance and operating range: NEMA TS2-2021, FCC, and PTCRB validated; approved from -29.2°F to 165.2°F with 0.5G vibration testing across all three axes.
- HALT: remained operational after -40°F cold, 194°F heat, 50 Grms vibration, and combined -31°F to 176°F thermal cycling under 15 Grms vibration.
- Dust, airflow, and corrosion: talc exposure produced only a 1.8°F internal temperature increase, and 192 hours of salt mist testing aligned with MIL-STD-810H confirmed continued operation after powered validation.
- Vibration, airflow, and salt fog testing to MIL-STD-810H confirmed robustness during transportation and in harsh or corrosive environments.
- Packaging and transportation: ISTA validation covered warehouse exposure, compression, one-meter drops across 10 orientations, and 1.5 Grms vibration.
- Reliability: 26.5-year calculated system MTBF under Bellcore Telcordia SR-332 Issue 3; fan MTBF ranges from 22.8 to approximately 35 years depending on duty assumptions.
The Result: Compact Without Compromise
Nexus Omni delivers modern traffic management capability in a 68% smaller footprint—making advanced cabinet functionality practical across more field configurations while effectively managing space, power, heat, connectivity, and long-term serviceability.
