A smart city is an extensive, integrated information management system that safeguards social stability and harmony. As a core component, video surveillance systems are rapidly advancing toward higher definition, intelligence, and cloud‑based deployment. Faced with the bandwidth surge from massive 4K/8K cameras, equipment failure risks in harsh outdoor environments, and the operational challenges of million‑node scale management, MRD™ leverages its deep expertise in critical infrastructure sectors such as transportation and energy to deliver full‑scenario communication solutions for smart city video surveillance. Integrating industrial Ethernet ring networks and EPON technologies, the solution is built on high‑reliability ring topologies, industrial‑grade wide‑temperature design, intelligent PoE power delivery, and three‑tier security protection – ensuring that citywide surveillance achieves visual clarity, transmission stability, and manageability, while helping build a modernized and technology‑driven urban governance system.
A smart city is a large-scale integrated IT system for social safety and harmony. Video surveillance—its core component—is evolving toward HD, intelligence and cloud. MRD delivers a full-scenario communications solution combining industrial Ethernet rings with EPON.
Extremely reliable, sustainable business
Support industrial redundant ring network, self-healing time < 50ms; EPON supports "hand-in-hand" redundancy protection mechanism, replacement time < 10ms; core equipment (such as TNM7000) supports dual master + dual power supply redundancy, eliminating a single point of failure.Full Scene Environment Adaptation
The product meets the requirements of -40 ℃ ~ +75 ℃ wide temperature, IP40 protection, Class 4 lightning protection and EMC 4A electromagnetic compatibility, and can easily cope with harsh environments such as high temperature, dust, and lightning of outdoor pole boxes and roadside cabinets.Smart Access and Power Supply
The front-end switch supports IEEE 802.3af/at PoE +, which solves the problem of the last 100 meters of power supply for high-definition cameras and simplifies cabling.Stereoscopic security
Supports device access authentication, port isolation, ACL access control, effectively blocking illegal intrusion and horizontal virus transmission; supports power-down alarms, and accurately locates faults.Industry Trends
Five Evolutionary Directions of Smart City Surveillance SystemsData storage cloudization
With many monitoring points, a large amount of image information, and uninterrupted storage time of 7 × 24 hours, the need for cloud storage and retrieval of mass high-definition video is becoming more and more urgent.
Following Access—Regional Aggregation—Central Core tiers, flexibly adopt industrial Ethernet rings or EPON to match monitoring density and fiber resources.

Our solution follows the three-tier architecture of "front-end access layer — regional convergence layer — central core layer", which can flexibly adopt industrial Ethernet or EPON passive optical network technology to match the monitoring density and optical fiber resources in different regions.
Scenario features:Deployed in urban road intersections, communities, squares, and other outdoor scenarios. Each intersection is configured with 1 to 4 access switches, and access devices are set at intervals of 100 to 500 meters.
Protocol Core:Deploy TCC4100 series or TOM1000 series front-end access industrial switches.
Key Features:
Optical-electronic hybrid interface: Provide 4 gigabit/100 gigabit SFP optical ports + 8 gigabit electrical ports + 4 serial ports, easily connect various terminal equipment.
High power PoE + power supply: PoE function is supported to solve the problem of power supply of the last 100 meters of high-definition cameras.
Layer 3 switching to prevent storms: Supports Layer 3 switching to effectively isolate network broadcast domains.
Industrial-grade high reliability: fanless design, IP40 protection level, support wide temperature work, small size, compact and flexible, easy on-site installation.
Scenario features:Deployed in police stations and branch computer rooms, it is necessary to aggregate multiple front-end video streams and achieve ring network redundancy.
Protocol Core:Deploy the TCC4100 series to build a redundant ring network, or choose the SRS2000 series of rack-mounted industrial switches.
Key Features:
Redundant ring network protection: Support industrial Ethernet ring network, link recovery time < 50ms.
Passive optical network support: support bus, tree structure, EPON support hand in hand redundancy protection mechanism.
Hierarchical networking: with perfect SNMP network management and friendly web interface, operation and maintenance are efficient.
Scenario features:Located at the city/district level monitoring center, it needs to deal with the aggregation, storage and intelligent analysis of video data throughout the city.
Protocol Core:TNM6000 series dual-mode optical network core OLT/switch.
Key Features:
Super switching capability: 1.4T backplane bandwidth, easy to handle large traffic HD video traffic.
Telecom-level redundancy: Dual main control + dual power supply modular design, complete uninterrupted operation.
High-density interface and elastic expansion: Support up to 8 10 Gigabit ports and 96 Gigabit/PON ports; 8 hot-pluggable service slots to meet on-demand configuration and elastic expansion.
Core Product Portfolio: Reliable Equipment Selected for Smart City Surveillance Scenarios
| Product series | Key Models and Features | Typical deployment location | Core Advantages |
|---|---|---|---|
| TOM1000 series fiber optic transceiver/entry-level card rail | 1 optical 1 electric/1 optical 2 electric (100 Gigabit); 4/8/16 electric port, optional PoE, SFP, full Gigabit | Single point of intersection, small convergence box | Extremely cost-effective, easy to deploy, and solves the problem of terminal fiber access |
| TCC4100 Series Universal Card Rail Industrial Switches | 4COMBO +12 power, optional PoE/serial/M12 interface, supports Layer 3 switching, ring network redundancy | Intersection cabinets, community meeting points | Rich interface, strong environmental adaptability, support ring network and remote management |
| TNM6000 Series Dual Mode Optical Network Core OLT | 1.4T backplane, dual mains/dual power supplies, up to 80,000 Gigabit + 96 Gigabit/PON ports | City/district monitoring center | Carrier-grade reliability, large switching capacity, support for dual-mode unified platform of Ethernet and EPON |
Visual remote operation and maintenance: The full range of network management equipment supports the SNMP protocol, which can be integrated into a unified network management platform to achieve remote monitoring of equipment status, port traffic, and optical module receiving and transmitting power.
Intelligent I/O and environmental monitoring: The TCC4100 series supports 4 DI and 4 DO, which can remotely restart the panic terminal and report the door opening alarm of the cabinet in real time; it supports access to temperature and humidity sensors to achieve micro-environment monitoring.
Fault precise positioning: The equipment supports the power-off alarm function to help the O&M center quickly distinguish whether the network is interrupted or the equipment is powered off, and accurately dispatch orders to improve emergency response efficiency.

Located at the city/district level monitoring center, it needs to deal with the aggregation, storage and intelligent analysis of video data throughout the city.
TNM6000 series dual-mode optical network core OLT/switch.
1.4T backplane bandwidth to easily handle high traffic HD video traffic.
Dual main control + dual power supply modular design, complete uninterrupted operation.
Supports up to 8 10 Gigabit ports and 96 Gigabit/PON ports; 8 hot-swappable service slots for on-demand configuration and elastic expansion.

20 Gbps backplane; PoE per IEEE 802.3af/at; up to 30 W per PoE port; fanless; operating temperature -40°C to +75°C
More| Product series | Key Models and Features | Typical deployment location | Core Advantages |
|---|---|---|---|
| TOM1000 series fiber optic transceiver/entry-level card rail | 1 optical 1 electric/1 optical 2 electric (100 Gigabit); 4/8/16 electric port, optional PoE, SFP, full Gigabit | Single point of intersection, small convergence box | Extremely cost-effective, easy to deploy, and solves the problem of terminal fiber access |
| TCC4100 Series Universal Card Rail Industrial Switches | 4COMBO +12 power, optional PoE/serial/M12 interface, supports Layer 3 switching, ring network redundancy | Intersection cabinets, community meeting points | Rich interface, strong environmental adaptability, support ring network and remote management |
| TNM6000 Series Dual Mode Optical Network Core OLT | 1.4T backplane, dual mains/dual power supplies, up to 80,000 Gigabit + 96 Gigabit/PON ports | City/district monitoring center | Carrier-grade reliability, large switching capacity, support for dual-mode unified platform of Ethernet and EPON |
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.Designed to stringent transportation/power standards with high-MTBF algorithms and lifetime assessment for outdoor 7x24 continuous operation.
Complete portfolio from media converters and din-rail switches to core OLT/switches, combinable for community, roadway, and large-city surveillance.
From ENIG and conductive oxidation PCB processes to power isolation and software memory self-check, stability and lifetime are ensured from the source.
Deployed at city intersections, communities, plazas and other outdoor sites; TCC4100 or TOM1000 access industrial switches recommended.
Deployed in urban road intersections, communities, squares, and other outdoor scenarios. Each intersection is configured with 1 to 4 access switches, and access devices are set at intervals of 100 to 500 meters.
Deploy TCC4100 series or TOM1000 series front-end access industrial switches.
Optoelectronic hybrid interface:Provide 4 Gigabit/100 Gigabit SFP optical ports + 8 Gigabit electrical ports + 4 serial ports to easily connect all kinds of terminal equipment.
High Power PoE + Power Supply:Support PoE function to solve the problem of high-definition camera last 100 meters power supply.
Layer 3 swap to stop the storm:Layer 3 switching function is supported to effectively isolate the network broadcast domain.
Industrial Grade High Reliability:Fanless design, IP40 protection level, supports wide temperature operation, small size, compact and flexible, easy on-site installation.
Deployed in police station and precinct equipment rooms; build redundant rings with TCC4100, or choose SRS2000 rackmount industrial switches.
Deployed in police stations and branch computer rooms, it is necessary to aggregate multiple front-end video streams and achieve ring network redundancy.
Deploy the TCC4100 series to build a redundant ring network, or choose the SRS2000 series of rack-mounted industrial switches.
Redundant ring network protection:Support industrial Ethernet ring network, link recovery time < 50ms.
Passive Optical Network Support:Support bus, tree structure, EPON support hand in hand redundancy protection mechanism.
Hierarchical networking:With perfect SNMP network management and friendly web interface, operation and maintenance are efficient.