In the smart transportation ecosystem, the surveillance system serves as the "sensory hub," performing critical tasks such as traffic flow collection, incident detection, environmental monitoring, and video surveillance. With the proliferation of applications like HD video, AI analytics, and V2X, surveillance networks now face five core challenges: skyrocketing bandwidth demands, massive numbers of endpoints, long‑haul deployments, harsh environmental conditions, and security protection. Drawing on deep expertise in transportation surveillance scenarios, MRD offers a converged communication solution based on dual‑mode optical switching networks – combining industrial Ethernet rings with passive optical networks (PON) – to build a high‑bandwidth, highly resilient, and easily scalable communications foundation for surveillance data across the entire link – from lanes and roadside to the center.
Unlike campus surveillance, expressway/highway monitoring faces distinctive deployment and operations challenges:
Long Range and Long Link Challenges
The distance between the monitoring center and the toll station and the toll station can reach 40-80 kilometers, and for the long-distance transmission of equipment, the adaptability of the wild environment and the remote management capability put forward extremely high requirements.Terminal dense and heterogeneous interfaces
The monitoring points in the toll station area are dense, and the terminal interfaces are diverse (Ethernet, serial port, switching I/O), requiring high-density access and compatibility with old equipment.Power supply and unstable environment
The quality of power supply in the road section is different, which is prone to fluctuations. Household cabinets face high temperatures, dust, EMI, and when they are often exposed to the risk of damage or theft by equipment personnel.Massive HD video bandwidth torrent
The popularity of high-definition cameras has dramatically increased network traffic, requiring the backbone network to have large backplane bandwidth and efficient multicast processing capabilities.
Dual-mode optical switching—purpose-built for traffic surveillance.

Supports 24 Ethernet ports including 8×2.5G SFP; any two ports can form a self-healing ring with multiple independent rings; QoS (IEEE 802.1p/1Q and ToS/DiffServ); SNMPv1/v2c/v3
More| Products | Critical capability | Sort | Descriptions |
|---|---|---|---|
| TCC4100 series railway train on-board industrial switch | Supports Ethernet ring network function based on MRD-Ring ® technology, nodes self-healing time under 5 milliseconds, ring network self-healing time under 50 milliseconds (typical value) Supports IEC-based... | eth-poe | See product details |
| TCC4100 Series Railway Train Car IP54IP67 Switch | Supports up to 8 PoE ports Supports Ethernet ring function based on MRD-Ring ® technology, supports multiple self-healing rings, nodes self-healing time under 5 milliseconds, ring network self-healing when... | eth-poe | See product details |
| TCC4100 series 24-port high-end Din-RailLayer-3industrial switch | Supports 24 Ethernet ports, including 8 2.5g SFP fiber ports Any two ports can be used to form a self-healing ring network, and supports multiple independent self-healing rings... | eth-l3-mgt | See product details |
| TCC4100 Firm Interface Din-Rail Switch - Gigabit | Backplane bandwidth up to 68Gbps Supports Ethernet ring network function based on MRD-Ring ® technology, supports multiple self-healing rings, nodes self-healing time under 5 milliseconds, ring network self-healing... | eth-l3-mgt | See product details |
Every solution is built on relentless pursuit of product fundamentals. We disclose the following design details for the most demanding engineering review:
MTBF (Mean Time Between Failures)
Device-level stress prediction based on the SR-332 algorithm; system MTBF exceeds one million hours.Service Life
Not only datasheet ratings—measured estimates based on electrolytic capacitor capacitance fade at minimum operating parameters @ operating temperature.Clearly separates intake vs. exhaust fan scenarios for optimal long-term thermal management.
Conductive oxidation and ENIG vs. ordinary paint/tin plating greatly improve corrosion resistance and signal integrity.
Multi-port network transformers optimize port isolation and surge protection.
Power isolation resists supply fluctuation; firmware periodic memory checks proactively find and fix memory risks.
Converge industrial Ethernet rings and PON; backbone bandwidth up to 80 Gbps.
| Critical capability | Technology achieves | Value |
|---|---|---|
| Ultra-wide backbone | Core switch TNM7000provides 4T backplane bandwidth, backbone network bandwidth can reach 80Gbps | Easily carry HD video, event detection, meteorological data, etc. Multi-service and send traffic |
| Flexible networking | Supports a variety of topologies such as star, chain, and tree, and the core adopts a passive beam splitter. | Save optical fiber resources, passive maintenance-free splitter, adapt to long-distance linear deployment |
| Industrial grade high can rely on | Ring network self-healing < 50ms; PON handheld protection inversion < 10ms | Adapting to curbside cabinets, tunnels, etc. Harsh environment, link failure when the business is not aware and self-healing |
Power-loss alarm, remote reboot, environment monitoring and multi-interface front-end access.
Support equipment authentication registration to prevent illegal access, power-down alarms accurately locate power supply faults, provide a detailed MIB library, and can be integrated into an integrated network management platform. Operation and maintenance personnel can remotely and quickly determine the point of failure (equipment, link, power supply), effectively resisting network attacks.
End devices (TCC4100 series ring network switches, industrial-grade ONUs) provide Ethernet, serial, I/O, PoE +, etc. Multiple interfaces, one station access to high-definition cameras, can variable intelligence boards, vehicle detectors, weather stations, etc. All terminals, solve the problem of the most after 100m power supply.
Core layer TNM7000 dual-mode optical network core switch (4T backplane, dual main control + dual power); access layer TCC4100 Industrial Ethernet Switch (Layer-3 switching, DI/DO, temperature and humidity sensor interface); terminal ONU (dual GEPON port, power down alarm, 4copper port +4 serial port).