Lumetra
Lumetra
Portugal is rapidly emerging as Europe's key transatlantic connectivity gateway. Driven by mega infrastructure projects such as the Sines 4.0 Hyperscale Data Center and the landing of high-capacity submarine cable systems (including EllaLink, Equiano, and 2Africa), the country has observed a major shift from legacy 10G interfaces to next-generation 25G and 32G SFP28 architectures.
Portuguese telecom operators (including MEO, NOS, and Vodafone Portugal) are upgrading their backhaul and fronthaul infrastructure to support 5G Standalone (SA) deployments. This physical infrastructure layer heavily relies on 25G SFP28 transceivers to resolve fiber-exhaust challenges, utilizing advanced Bidirectional (BiDi) and Wavelength Division Multiplexing (CWDM/DWDM) technologies to transmit maximum data over existing optical pathways.
Understanding the physical and protocol differences between 25G Ethernet and 32G Fibre Channel (FC) transceivers is crucial for local network engineers architecting future-proof networks.
| Feature Parameter | 25G SFP28 Ethernet | 32G SFP28 Fibre Channel (FC) |
|---|---|---|
| Nominal Data Rate | 25.78 Gbps | 28.05 Gbps (also referred to as 32GFC) |
| Target Applications | 5G Fronthaul, Cloud Data Center, ToR-to-Leaf Switches | Storage Area Networks (SANs), High-Speed Data Storage backup |
| Laser / Transceiver Core | VCSEL (850nm) / DFB (1310nm) / EML (CWDM/DWDM) | High-speed VCSEL (Short Reach) / DFB (Long Reach) |
| FEC Support | Base-R FEC & RS-FEC (Required for long-reach links) | Transmitter training and custom FC-FEC algorithms |
| Transmission Distance | 100m (SR MMF), 10km (LR SMF), 40km (ER SMF) | 100m (OM4 MMF), 10km (SMF) |
SFP28 form factor utilizes NRZ modulation (Non-Return-to-Zero) at 25G/32G rates, offering simple transceiver designs, low power consumption, and lower latency profiles compared to PAM4-based 50G or 100G modules.
Our standard and industrial range transceivers offer commercial operating temperatures (0°C to 70°C) and industrial ranges (-40°C to 85°C) specifically tailored for demanding Portuguese outdoor telecom cabinets.
Wide options ranging from 850nm VCSEL for multi-mode fiber, 1310nm DFB/EML for standard 10km-40km single-mode networks, to CWDM/DWDM laser configurations supporting up to 40 channels on a single fiber pair.
As a premier global manufacturer, Lumetra Optoelectronics Technologies Co., Ltd. leverages a highly optimized production infrastructure in China. By sourcing raw components and optical chips directly from long-term, reliable semiconductor foundries and operating an advanced 8,500㎡ production facility, we bypass conventional intermediate supply chain markups.
Our facility houses 86 dedicated R&D engineers focused on optical signal integrity and protocol compatibility, allowing us to launch more than 220 new specialized modules annually. We manage a robust network of over 1,200 supply chain partners, ensuring component security even during global raw material fluctuations. For buyers in Portugal, this directly translates to competitive tier-1 manufacturer pricing, highly reliable lead times, and rigorous validation processes.
Quality control at Lumetra is an end-to-end discipline. Every 25G SFP28 and 32G module undergoes:
Founded in 2016, Lumetra Optoelectronics Technologies Co., Ltd. is a leading engineering-centric manufacturer specializing in high-speed optical transceivers and custom fiber optic connectivity solutions. For over 11 years, our core design teams have supported enterprise networks, telecommunications carriers, and hyperscale cloud environments globally.
With an annual export value exceeding USD 18 million, our products serve critical markets in Southern Europe (with a strong focus on Portugal’s expanding digital grid), North America, and the Asia-Pacific region. Our 8,500㎡ facility hosts advanced automated assembly processes, optical coupling platforms, and rigorous environmental stress chambers to guarantee high-reliability metrics for every shipped component.
We pride ourselves on technical adaptability. Whether your project in Portugal requires specific EEPROM coding for multi-vendor hardware compatibility (Cisco, Arista, Juniper, HP, etc.), customized wavelengths for DWDM channels, or specialized thermal engineering for high-density switches, our R&D team of 86 engineers is fully equipped to deliver tailored solutions.
OEM/ODM Support: Full customization of device EEPROM tables, form factor engineering, custom firmware, and laser tuning options.
Through robust collaboration with 1,200+ global supply partners, we ensure consistent delivery schedules, shield clients from market shocks, and provide rapid shipping solutions directly to logistics hubs in Porto and Lisbon.
Our modules strictly comply with European Union directives and international standards, ensuring seamless integration into public sector tenders and carrier-grade infrastructures in Portugal:
We understand that network downtime is highly critical. To support our clients in Portugal, we offer rapid logistics shipping from our hubs directly to Lisbon, Porto, and Algarve. Our dedicated commercial team handles customs clearance processes, ensuring that imports arrive on site without delays.
Every product shipped to Portugal is backed by a 3-year replacement warranty and real-time remote diagnostics support. If compatibility issues occur during switch migrations, our engineering team can provide firmware patch files via our cloud portal to solve issues in minutes.
It depends on the port's capabilities and configuration. Most modern SFP28 slots are backward-compatible and can accept 10G SFP+ transceivers. However, an SFP28 transceiver cannot function in a standard 10G SFP+ port unless the port specifically supports speed auto-negotiation or dual-rate settings (e.g., dual-rate 10/25G modules like the Cisco SFP-10/25G-CSR-S).
Under standard configurations, 25G SFP28 LR modules support up to 10km using standard Single Mode Fiber (SMF) at 1310nm. For longer distances, ER (Extended Range) modules can achieve up to 40km by utilizing advanced EML lasers. For extreme distances, custom DWDM or LWDM solutions are available.
While both modules share the same mechanical SFP28 form factor, they run on different networking protocols and transmission speeds. 25G Ethernet operates at 25.78 Gbps and is designed for IP networks. 32G FC operates at 28.05 Gbps and is designed exclusively for Fibre Channel storage networks. They are not directly interchangeable, and switches must have specific host ports to accept their respective protocols.
Yes. All of our transceivers undergo rigorous host-system validation testing. We write and custom-flash compatibility code (EEPROM) to ensure the transceivers are recognized as original or fully compatible modules in major platforms, including Cisco, Juniper, Arista, Nokia, HP, and Edge-Core.
Standard modules (SR, LR) are generally in stock and can be dispatched immediately. Custom configurations, such as specific CWDM/DWDM wavelengths, require a production and programming window of 5–7 business days, with express air cargo shipping to Lisbon or Porto taking approximately 4–6 business days.
