Safe City is a security guarantee for new urbanization and a critical foundation for enhancing urban governance capabilities. Faced with the bandwidth surge from massive HD cameras, equipment failure risks in harsh outdoor environments, and the operational challenges of managing vast numbers of devices, MRD™ leverages its deep expertise in critical infrastructure sectors such as transportation and energy to deliver full‑scenario communication solutions for Safe City video surveillance systems. 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, stable transmission, and easy management.
Safe City is a cornerstone of new urbanization and a key foundation for modern urban governance. Facing bandwidth floods from massive HD cameras, outdoor equipment failure risks, and O&M challenges at scale, MRD delivers a full-scenario communications solution combining industrial Ethernet rings with EPON for Safe City video surveillance.
Extremely reliable, sustainable business
Support industrial redundant ring network, self-healing time < 50ms; EPON supports "hand-in-hand" protection, replacement time < 10ms; core equipment (such as TNM7000) supports dual master + dual power supply redundancy, eliminating single point of failure.Full Scene Environment Adaptation
The product meets the requirements of -40 ℃ ~ +75 ℃ wide temperature, IP40/IP41 protection, four-level lightning protection and EMC 4A electromagnetic compatibility, and can easily cope with harsh environments such as high temperature, dust, and lightning of outdoor cabinets and pole boxes.Smart Access and Power Supply
The front-end switch supports IEEE 802.3af/at PoE +, with a maximum power supply of 30W per port, which solves the problem of high-definition cameras last 100 meters power supply 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 Challenges
Four Pain Points of Safe City Surveillance NetworkHigh-definition bandwidth torrents
The camera has evolved from 2 million pixels to 8 million and 4K, and the single channel bandwidth demand has jumped from a few megabytes to tens of megabytes, requiring the access layer and backbone network to have full gigabit access and 10 gigabit uplink capacity.
Our solution follows a three-tier architecture—Access, Aggregation and Core—and can flexibly adopt industrial Ethernet rings or EPON to match monitoring density and fiber resources.
Our solution follows the three-layer architecture of "Access Layer — Aggregation Layer — 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.
Protocol Core:Deploy the SDS300 series of unmanaged/managed PoE industrial switches, directly connected to high-definition cameras.
Key Features:
Optical-electric hybrid interface: Provides 2 Gigabit SFP optical ports + 4/8 Gigabit PoE electrical ports.
High-power PoE + power supply: The maximum output per port is 30W, which can power high-definition ball machines, AI cameras, and no additional power cords.
Industrial-grade high reliability: working temperature -40 ℃ ~ +75 ℃, protection level IP40, support four-level lightning protection, suitable for outdoor pole box installation.
Plug and play: Unmanaged devices are easy to deploy, managed devices, support remote management, and facilitate later operation and maintenance.
Protocol Core:Deploy the SRS2000 series of rack-mounted industrial switches or TNM7000 core switching platform to achieve high-speed convergence and forwarding of multi-channel video streams.
Key Features:
High density and high bandwidth: For example, SRS2000-SC28 provides 16 Gigabit optical ports + 8 Gigabit Combo ports + 4 10 Gigabit optical ports, and the backplane bandwidth is 128Gbps, which meets the needs of large-scale monitoring traffic uplink.
Redundant ring network protection: Support self-healing ring network, failure recovery < 50ms, to ensure that the monitoring screen is not lost due to single-point link interruption.
Carrier-grade core redundancy: The TNM6000 provides 1.4T backplane bandwidth, supports dual master control, dual power online hot standby, and provides a non-disruptive switching core for large monitoring centers.
| Product series | Key Models and Features | Typical deployment location | Core Advantages |
|---|---|---|---|
| SDS300-A Series Unmanaged PoE Switches | 2 Gigabit optical port + 4/8 Gigabit PoE port, 30W per PoE port, -40 ~ 75 ℃, IP40, plug and play | Intersection, community, outdoor pole box | Extremely cost-effective, easy to deploy, solves the problem of front-end camera access and power supply |
| SDS300-B Series Layer 2 Managed PoE Switches | 4 Gigabit optical port + 8 Gigabit PoE port, support web/CLI management, ring network redundancy | Key areas, convergence nodes | Network management, support ring network, remote status monitoring and fault location |
| SRS2000 Series Aggregation/Core Switches | 16 Gigabit optical +8 Combo + 40,000 Gigabit optical, 128g backplane, support ring network, dual power supply redundancy | Police station convergence machine room, branch monitoring center | High density, high bandwidth, adapt to large-scale video stream convergence, support 10 Gigabit uplink |
| TNM6000 Series Dual Mode Optical Network Core | 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 and can be integrated into a unified network management platform. Operation and maintenance personnel can remotely view equipment status, port traffic, optical module receiving and transmitting power, and can remotely restart faulty ports, greatly reducing on-site maintenance workload.
Port isolation and security reinforcement: Through the port isolation function, isolate the mutual visits between different cameras under the same switch, and only allow them to communicate with the upper link port, effectively preventing the virus from spreading horizontally in the network after a camera is compromised.
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.
Backplane bandwidth up to 52 Gbps with wire-speed forwarding and auto MDI/MDIX on all ports; supports long-distance transmission; IEEE 802.3af/at PoE; compact, easy to install, plug-and-play with no configuration.
More| Product series | key characteristics | Typical Deployment | Core Advantages |
|---|---|---|---|
| SDS300 Series Unmanaged/Managed PoE Switches | Gigabit light + PoE port, maximum 30W per port, -40 ~ 75 ℃, IP40 | Intersection, community, outdoor pole box | Front-end camera access and power supply for easy deployment |
| SRS2000 Series Rackmount Industrial Switches | High density port, 10 Gigabit uplink, ring network redundancy, dual power supply | Police Station Aggregation, Branch Monitoring Center | Large-scale video streaming convergence and reliable forwarding |
| TNM6000 Series Core Industrial Switches | Extra large backplane, dual mains/dual power supplies, elastic expansion | City/district monitoring center | Carrier-grade reliability, unified core switching platform |
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 standards from transportation and power sectors, with high MTBF and lifetime assessment for outdoor 7x24 operation.
Full coverage from unmanaged PoE access and managed rings to core switches, fitting community to large urban scales.
Details such as ENIG, power isolation, and software memory self-check ensure long-term stability and lifetime from the source.
Hotline: 86-21-58330762
Zip: 201203
Email: sales@mrdcom.net
Address: No.123 Curie Road, China (Shanghai) Pilot Free Trade Zone
Copyright 2026 MRD Co LTD . All Rights Reserved Shanghai ICP No.12035199
Deploy SDS300 unmanaged/managed PoE industrial switches to connect HD cameras directly
Deploy the SDS300 series of unmanaged/managed PoE industrial switches, directly connected to high-definition cameras.
Optoelectronic hybrid interface2 x Gigabit SFP ports + 4/8 x Gigabit PoE ports for flexible field cabling.
High Power PoE + Power SupplyWith a maximum output of 30W per port, it can power high-definition ball machines, AI cameras, and no additional power cords.
Industrial Grade High ReliabilityOperating temperature -40 ℃ ~ +75 ℃, protection level IP40, support four-level lightning protection, suitable for outdoor pole box installation.
Plug & PlayThe unmanaged deployment is convenient; the managed network supports remote management, which is convenient for later operation and maintenance expansion.
Deploy SRS2000 rackmount industrial switches or the TNM7000 core switching platform
Deploy the SRS2000 series of rack-mounted industrial switches or TNM6000 core switching platform to achieve high-speed convergence and forwarding of multi-channel video streams.
High density and high bandwidthFor example, SRS2000 provides Gigabit Optical/Combo and 10 Gigabit Uplink, and the backplane bandwidth meets the requirements of mass monitoring traffic.
Redundant ring network protectionSupport self-healing ring network, failure recovery < 50ms, to ensure that the monitoring screen is not lost due to single-point link interruption.
Carrier Grade Core RedundancyThe TNM6000 supports dual main control and dual power supply online hot standby, providing an uninterruptible switching core for large monitoring centers.
It is not only about transmission, but also about operation, maintenance and security.
Visual remote O&MSNMP is supported by a full range of network management devices to remotely view status, traffic and optical power, and remotely restart faulty ports.
Port Isolation & Safety RuggedizationIsolate and exchange visits with cameras under the switch to block horizontal virus transmission.
Fault accurate positioningPower-down alarms help distinguish link outages from equipment outages and improve emergency response efficiency.
