In industrial automation, intelligent transportation, and video surveillance, we constantly face a stubborn challenge: when Ethernet cables exceed 100 meters, we must use fiber media converters to bridge electrical and optical signals. Traditional converters are bulky, require a dedicated 220V power outlet, consume valuable cabinet space, create messy cabling, and introduce extra failure points—all of which increase maintenance costs.

The problem becomes even more acute in space-constrained and power-scarce scenarios like AGVs (Automated Guided Vehicles), outdoor PTZ cameras, and distributed edge computing nodes. How can we make the光电 conversion “slim” and “easy to power”? That has become a major headache for system integrators.

Fulian Optoelectronics has just launched its Industrial-Grade Optical-to-RJ45 Module – a solution purpose-built to tackle these issues. This is not merely a downsized version of a traditional converter; it is a ground‑up redesign that packs the core capabilities of optical communication into a palm‑sized footprint.

Highlight 1: Ultra‑Compact Form Factor, Powered by Built‑in USOT Optical Engine

The module measures just 67.5mm × 21.7mm × 26mm – smaller than a common USB‑C charger. This breakthrough is enabled by the USOT (Ultra Small Optical Transceiver) – a proprietary micro‑optical engine developed by Fulian. It integrates the laser, detector, driver IC, and control circuits into a single highly miniaturized package. Compared with traditional SFP‑based designs, the USOT technology delivers 1.25Gbps data rate while cutting power consumption by over 30%, improving reliability, and eliminating the need for extra heat sinks. It truly embodies “small size, big capability.”

Highlight 2: USB‑C Power Supply – Freedom from Power Outlets

Traditional converters rely on 5V or 12V power adapters, forcing you to reserve an AC outlet or run power lines near every deployment point. Our module, however, adopts a standard USB‑Type‑C port for power input, accepting a wide 5V range. It can be powered directly from a USB adapter, a power bank, or even a USB port on a switch. This not only removes the location constraint of outlets but also drastically cuts the cost of purchasing and installing extra adapters, making on‑site deployment far more flexible and tidy.

Highlight 3: Up to 20 km Reach with Industrial‑Grade Immunity

Despite its tiny stature, transmission performance is uncompromising. It supports 1.25Gbps over single‑mode fiber, with a maximum reach of 20 kilometers – more than enough for large campuses, highway corridors, or inter‑factory backbone links. The module is fully industrial‑grade, with an operating temperature range from ‑40°C to +85°C and excellent EMI/EMC tolerance. Its full‑metal shielding effectively guards against interference from motors, inverters, and other harsh sources, ensuring stable 7×24 operation even in the most demanding environments.

Highlight 4: Plug‑and‑Play with Seamless Compatibility

The module operates at the physical layer, transparent to upper‑layer protocols. It seamlessly works with any Ethernet switch, NVR, industrial controller, or server NIC – no drivers or configuration required. Its microsecond‑level latency also makes it ideal for real‑time control applications, such as robotic coordination and motion control.

Typical Applications

• Industrial Automation Lines – Replace multiple bulky converters inside control cabinets, save space, improve heat dissipation and cable routing, and boost overall system reliability.

• Mobile Robots (AGV/AMR) – With high vibration and tight space, the module’s shock resistance and tiny size perfectly suit vehicle‑mounted installations.

• Smart Video Surveillance – Outdoor surveillance points often lack AC outlets; USB‑C power borrowing is convenient, while fiber ensures high‑definition video backhaul over long distances.

• Intelligent Transportation – At traffic intersections and toll‑gate capture units, the module fits inside outdoor enclosures, with wide‑temperature and surge‑protection features offering clear advantages.

Green Energy Saving, Lower TCO

Thanks to the low‑power USOT optical engine, total module consumption is less than 1.5W – saving over 50% energy compared to conventional solutions. This reduces heat generation inside enclosures, prolongs equipment life, and cuts long‑term electricity costs.

Conclusion

Fulian Optoelectronics’ industrial‑grade optical‑to‑RJ45 module is far more than a simple “size shrink” – it represents a true product innovation. By combining long‑haul transmission, industrial‑grade ruggedness, convenient USB‑C power, and an ultra‑compact footprint, it offers system integrators and end users a more elegant and efficient way to build long‑distance networks. If you are wrestling with space and power constraints, give this “little powerhouse” a try.

We’d love to hear your stories about long‑distance networking challenges – feel free to comment below or reach out directly for sample testing!