This solution leverages Wanglink PoE switches to tackle the pain points of cumbersome power supply and complicated wiring, while adopting industrial-grade switches to cope with harsh on-site conditions and long-distance transmission needs. It further builds a highly reliable, easy-to-maintain smart city security transmission infrastructure that supports 24/7 stable operation.

Applicable Scenarios

HD surveillance on urban arterial roads, smart communities and industrial parks, transportation hubs (such as railway stations and airports), remote environmental monitoring of ecological reserves, and perimeter security of industrial zones.

Wanglink network devices have been deployed in over 200 smart city projects nationwide. Contact us now for customized optimal solutions tailored to your project demands.

Core Application Details

All video data from each monitoring point converges in roadside cabinets—where working conditions are tough, including extreme heat in summer, severe cold in winter, vehicle-induced vibrations, and electromagnetic interference. To address these challenges, we adopt Wanglink industrial-grade switches, which are engineered with IP40 protection rating and a wide operating temperature range of -40℃~75℃ for industrial environments.

Multiple HD cameras (for panoramic monitoring, snapshot forensics, and license plate recognition) are installed on surveillance poles at intersections. Wanglink PoE switches enable integrated power supply and signal transmission, eliminating the need for additional power cables. Each PoE port delivers up to 30W power, ensuring stable 24-hour operation of HD cameras and significantly streamlining on-site deployment.

In the vast production areas of modern automated factories, production equipment is scattered across assembly lines, CNC machining areas, and high-bay warehouses. Building a network solution (such as monitoring and office networks) between these devices faces several challenges: electromagnetic interference from heavy-duty motors, continuous mechanical vibration, and high/low temperatures (temperatures in some non-air-conditioned workshops often exceed 55°C).
This solution will utilize Wanglink industrial-grade switches and fiber optic media converters to build a robust and durable “industrial-grade capillary network,” completely covering every corner of the factory and providing stable network connectivity to even the most remote terminal devices.

1、Edge Access Layer:
Products Used: Wanglink DIN rail-mounted industrial unmanaged switches and fiber optic media converters
Application Scenarios:
Interconnection of Robotic Arms and Programmable Logic Controllers (PLCs)
Wanglink industrial unmanaged switches are directly installed on DIN rails in ultra-thin wall-mounted control cabinets, serving as the core connection hub for programmable logic controllers (PLCs), human-machine interface (HMI) panels, and robotic arm controllers.

Advantages:
Wanglink Industrial switch features a DIN rail mounting design and can be easily and securely installed in control cabinets, with no worry about mechanical vibrations from surrounding equipment; and the dual power input redundancy design provides double protection for stable connectivity, ensuring that the network remains operational even if one power supply fails, avoiding production downtime losses caused by single-point power failures.

2、Aggregation Control Layer:
Data generated by each production unit – whether from robotic arm workstations, CNC machine tools, or quality inspection cameras – needs to be aggregated and securely transmitted in real-time, seamlessly, and without delay to the factory’s data acquisition and monitoring system (SCADA).
Products Used: Wanglink Industrial Managed Switches with SFP Fiber Ports

Advantage:

I. Outdoor Access Layer

Product: Industrial-grade PoE Switch (Protection Class IP40, Operating Temperature: -40℃ to 75℃)

Core Scenarios:

1. Smart city video surveillance and Wi-Fi coverage, deployed in outdoor cabinets/municipal poles to simultaneously supply power and transmit data for PTZ dome cameras and Wi-Fi 6 access points;
2. Wired backhaul for 5G small cells in dense urban areas.

Core Value: PoE++ technology provides up to 90W of power per port, eliminating the cost of separate wiring; wide temperature range and IP40 protection adapt to extreme climates without the need for expensive temperature-controlled cabinets, reducing outdoor installation costs by over 50% and significantly minimizing environment-induced equipment failures and maintenance work orders.

II. Long Distance Transimission

Product: Fiber Media Converter (Ethernet Electrical-to-Optical Signal Conversion Device)

Core Scenarios:

1. Seamless integration of legacy copper cable devices (industrial control computers, old POS terminals, etc.) into fiber backbone networks;
2. Long-distance interconnection between buildings in industrial parks, campuses, etc.

Core Value: No hardware replacement required, protecting prior investments; single-mode fiber extends transmission distance from 100-meter level to over 20 kilometers, eliminating the need for relay equipment and enabling full-bandwidth, low-latency transmission.

III. Aggregation Control Layer

Product: Layer 3 Managed Aggregation Switch + SFP+/QSFP Optical Modules

Core Scenarios:

1. Construction of 10G SFP+ single-mode fiber ring networks at community/district nodes;
2. Traffic aggregation of access layers and QoS policy management.

Core Value: ERPS protocol enables 20 ms faulty link switching, imperceptible to users, improving SLA achievement rate and reducing fault complaint work orders by over 90%; VLAN isolation and QoS priority prevent congestion and guarantee bandwidth for critical services.

IV. Flexible Interface Layer

Core Product: Hot-Swappable Optical Modules (SFP/SFP+/QSFP28 Series)

Core Scenarios:

1. Modular smooth bandwidth upgrade (1G→10G→100G);
2. Optical module selection based on transmission distance (intra-building, campus, inter-city long-distance).

Core Value: A single switch chassis supports multi-generation module upgrades, with a service life of over 10 years, reducing total lifecycle capital expenditure by over 60%; standardized equipment and customized modules simplify inventory and operation & maintenance.