As highways and expressways undergo intelligent upgrades, communication systems have evolved from mere “data transmission pipes” into core infrastructure that determines service quality and safety. With a deep understanding of the transportation industry’s fundamental requirements for high reliability, maintainability, and scalability, MRD delivers full‑stack communication solutions based on next‑generation industrial Ethernet and HSR/PRP redundancy technologies – helping customers build all‑IP, highly resilient, and visualized smart transportation communication networks.
Looking back at traffic communications evolution, technology clearly moves toward lower cost, higher bandwidth, stronger redundancy and easier O&M:
Traditional SDH/MSTP bottleneck
Surface for IP business efficiency is low, equipment is non-industrial grade, environmental adaptability is poor, the need for professional maintenance, integrated into this high.Increased bandwidth and redundant requirements
High-definition video, vehicle-road collaboration, etc. Business requires more efficient bandwidth assurance (CIR/PIR) and more flexible redundant protection (ring switching < 50ms for starting point).High O&M complexity
Traditional transmission and hanging switches belong to different systems. Fault positioning requires multi-professional collaboration, and operation and maintenance are at a high level.Highlight security risks
In the face of network structure risks, system vulnerability risks, and protocol risks, traditional IT security measures are difficult to cover industrial control protocol scenarios.
Three networking modes to fit different project stages.
We need for transportation communication network in different stages of development, providing flexible, can evolve networking solutions to ensure technology leadership and return on investment.



| Industrial Ethernet backbone network | MSTP/SDH transmission backbone network | |||
|---|---|---|---|---|
| Purchase into this | Low | high | ||
| Maintain as this | and Hanging switch is a type of equipment, easy to manage; easy to maintain and debug, IT maintenance personnel can manage all equipment | and connected switches are two types of equipment, which are inconvenient to manage; maintenance and debugging are inconvenient, and professional personnel are required (a failure point requires multi-professional personnel to participate and solve) | ||
| Device can Reliability | compliant with industrial standard, adapt to various environments, MTBF long | Non-industrial standard, weak environmental adaptability, short MTBF | ||
| Data transfer capability | IP message | Non-IP packets | IP message | Non-IP packets |
| high | Low | Low | high | |
| Device types | Very many, mature technologies | Less (inconsistent for each manufacturer, each when period) | ||
| investment protection | Strong, IPstandard will not change | Weak, equipment updates quickly, miscellaneous | ||
| Technology development trends | All-IP is the development trend in various industries | Unknown direction | ||
Core Products: TNM6000 Series - Core Switches for the Next-Generation Transportation Networking Industry

TNM6000 is an MRD specialist for transportation, energy, etc. The key infrastructure creates a high-performance, modular core switching platform, and its design fully considers the business development needs of the next 10 years.
Super switching capacity
High backplane bandwidth design
Easily for large traffic subsystems such as high-definition CCTV video surveillance to burst traffic.
High density and elastic expansion
Supports up to 8 10g ports and 80 Gigabit ports; supports 4 can hot-swappable business slots.
from the surface for high-density access scenarios, and support on-demand configuration, in-line elastic expansion, to protect long-term investment.
Innovative redundant protocol
The hardware supports HSR/PRP (IEC 62439) protocol.

achieves zero packet loss, zero switching network redundant, for critical business provides ultimate can reliability.
Multifunctional business module
can is equipped with a three-level security module, HSR/PRP module, etc.
On-demand integration generates secure and high-can-reliance features that simplify the network architecture.
The needle for transportation communication system is facing network structure risk, system vulnerability risk, protocol risk and the failure risk of traditional security measures. Our innovative security capability is placed in the industrial switch system.
MRD Product Advantage: can Reliability is embedded in every design detail
Our for product can reliability commitment not only reflects in the grand agreement, but also implements in micro design choices. All products are designed based on the SR-332standard MTBF algorithm and evaluated based on the minimum operating parameter @ Operating temperature algorithm Lifetime. Key design differences include:

for communication continuity requires extremely high scenarios, such as extra-large bridges, long tunnels, and core data centers.
Based on international standard IEC 62439-3-5 (HSR) and IEC 62439-3-4 (PRP) protocols. TNM6000 series passes hardware achieves dual sending and receiving, network failure when switching between when for 0ms, data zero packet loss.
The traditional "software-level" A/B network switching is upgraded to "hardware-level", which provides telecommunication-level reliability protection for critical services.

Up to 80 Gigabit + 8×10G ports; PoE IEEE 802.3af/at; any two ports can form self-healing rings with multiple independent rings; Layer-2 QoS rate limiting and traffic shaping for tiered Ethernet bandwidth services
More| Products | Critical capability | Sort | Descriptions |
|---|---|---|---|
| TNM6000 core industrial switch | Maximum support 80 Gigabit ports +8 10g ports can support PoE power supply, support IEEE 802.3af, 802.3atstandard can support any two... | 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.20+ years in transportation communications with deep understanding of scenarios and pain points.
Among the first to implement IEC 62439 protocols, delivering future-ready architecture.
From MTBF to lifetime, engineered algorithms and design details back reliability commitments.
Lifecycle services from consulting and design to deployment and O&M.
For new or retrofit mid/small expressways and tunnels seeking high value and easy maintenance.
The TNM6000 series of core switches and end access devices are used to build an industrial-grade redundant ring network. The ring network self-heals between when and when ≤ 50 milliseconds, effectively resisting a single point of failure.
Compared with the traditional SDH scheme, procurement and maintenance are significantly reduced, and IT operation and maintenance personnel can manage the entire network equipment in a unified manner.
For new or upgrade projects with high IPization and large bandwidth needs (HD video, V2X).
The industrial Ethernet backbone network for the core provides end-to-end bandwidth assurance (CIR/PIR), and supports the passes network management system achieves real-world monitoring, fault warning, and elastic expansion.
Network resources can "provision on demand", for future V2X (Vehicle Connected Everything), big data acquisition, etc. Adequate capability is reserved for innovative businesses.