Lightweight 5G Arrives: How Municipal Surveillance Balances Bandwidth, Power Consumption, and Deployment Efficiency

Municipal surveillance points are extending into old alleys, green belts, hillside slopes, and temporary duty areas—places where neither fiber optics nor mains electricity is available. In the past, 4G devices lacked sufficient uplink bandwidth, causing stuttering when transmitting multiple video streams. Full-capability 5G devices consumed too much power, making them difficult to sustain with photovoltaic systems. Fiber optic cabling was costly and slow to deploy, making it impractical for municipal scenarios.

This dilemma is being broken by a new technology—5G RedCap.

01 What Is 5G RedCap and Why Is It Suitable for Municipal Surveillance?

RedCap stands for Reduced Capability. It is not a "lite version" of 5G, but a lightweight 5G solution precisely tailored for medium-to-high-speed IoT scenarios.

Compared to full-capability 5G modules, RedCap can reduce costs by 60-70% and power consumption by 31-41%, while retaining 5G's core advantages: low latency, high reliability, and network slicing. Compared to 4G Cat 4, RedCap offers uplink peak rates of up to 120Mbps and can reduce end-to-end latency by 80%, performing significantly better in HD video backhaul scenarios.

For municipal surveillance—which requires stronger bandwidth than 4G but doesn't need the extreme peak rates of full-capability 5G—RedCap hits the perfect balance.

02 Communication Solution for Municipal Surveillance

A typical solar-powered municipal surveillance point consists of the following:

Power Supply Side
Solar panels paired with batteries power the entire system. Device power consumption directly determines the required solar panel area, battery capacity, and how long the system can last during cloudy or rainy days.

Communication Side
Surveillance cameras connect to an industrial router via Ethernet. The router transmits video data back to the municipal management platform over the 5G RedCap network. These points require neither fiber nor mains power, and a single point can be activated in about 30 minutes.

Management Side
All routers are centrally managed through a cloud platform. Operators can perform batch configuration, remote firmware upgrades, and monitor each point's network status in real time, with automatic alerts for signal anomalies.

03 Device Selection Reference: ComIn I2105

For municipal surveillance scenarios, the ComIn I2105 5G RedCap Industrial Router offers a complete solution.

Communication Capability: Powered by a 32-bit MIPS dual-core industrial-grade processor, the ComIn I2105 delivers theoretical downlink speeds of 226Mbps and uplink speeds of 120Mbps in 5G SA mode, sufficient for stable transmission of multiple 1080P HD video streams.

Interface Configuration: It offers a Fast Ethernet WAN/LAN port and standard RS232/RS485 industrial terminals with DI/DO support, enabling simultaneous connection to cameras, environmental sensors, and other devices as a core gateway bridging legacy and new equipment.

Industrial-Grade Reliability: The all-metal casing and wide operating temperature range from -35°C to 75°C handle both severe cold and scorching heat. Built-in dual hardware watchdogs, combined with link detection and self-healing mechanisms, ensure 24/7 stable operation.

Multiple Protections: Wide 9-36V input adapts to photovoltaic power fluctuations; Ethernet ports feature 1.5KV isolation, and the SIM slot provides 15KV ESD protection. EMC design compliant with EN61000-4-X level4 standards builds a comprehensive protective barrier for outdoor equipment.

Remote O&M Capability: Cloud-based remote management enables batch configuration, OTA firmware upgrades, device alerts, and remote diagnostics, significantly reducing on-site maintenance costs for thousands of surveillance points.

Low Power Consumption for Solar Power: With average power consumption of approximately 170mA at 12V, combined with appropriately sized solar panels and batteries, the device can operate around the clock without mains electricity.

04 Typical Deployment Architecture

Site Layer
Each surveillance point deploys a ComIn I2105 RedCap industrial router, connecting to HD cameras via Ethernet and to environmental sensors via serial ports.

Backhaul Layer
Routers transmit video streams and sensor data back to the municipal management platform over the 5G RedCap network through VPN-encrypted tunnels (supporting IPsec, L2TP, WireGuard, OpenVPN, and other protocols), preventing data interception or tampering over public networks.

Management Layer
All point devices are centrally connected to the cloud platform, allowing operators to perform configuration deployment, firmware upgrades, fault diagnosis, and alert handling online, achieving "unattended remote O&M."

05 Conclusion

The challenge of municipal surveillance has never been a lack of cameras, but rather how to transmit, power, and maintain them once installed. 5G RedCap provides a better solution across all three dimensions: sufficient bandwidth, manageable power consumption, and cable-free deployment.

For those planning outdoor surveillance projects, don't get fixated on the peak specs of full-capability 5G. The key is finding the solution that is "just right"—with adequate performance, sustainable power consumption, and a budget-friendly cost. The RedCap camp, represented by the ComIn I2105, is precisely that answer. A solid connectivity foundation is what truly enables every "eye" of urban management to function effectively.