Custom 50G SFP56 Optical Transceivers (SR/LR/ER)
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Next-Gen PAM4 Technology: Utilizes native 1x50G PAM4 (Pulse Amplitude Modulation 4-level) signal modulation, doubling the data rate of 25G optics within the exact same ultra-compact footprint.
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5G Fronthaul Standard: The absolute mainstream standard for modern 5G cell site rollouts and enterprise midhaul infrastructure.
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Full Distance Matrix: Available in multiple exact reach variants, from short-reach SR (100m over OM4) to long-haul ER (40km over single-mode fiber).
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OEM-Grade Interoperability: Precision-coded in our Wuhan facility to seamlessly integrate with next-generation telecom routing hardware without vendor-lock rejections.
Product Description
Spearheading the 5G revolution requires optical components that can handle extreme bandwidth without expanding physical port sizes. The 50g sfp56 module series is engineered to deliver 53.125Gbps via advanced PAM4 modulation. Manufactured in WolonFiber's state-of-the-art facilities, these transceivers bypass retail distributors entirely, granting enterprise operators access to disruptive wholesale pricing. Whether you are connecting Top-of-Rack servers via SR variants or bridging 40km distances with our ER configurations, our 400-500 optical specialists ensure each unit passes rigorous live-traffic PAM4 BER (Bit Error Rate) testing.
Key Features
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Backward Compatibility: Mechanically identical to SFP28 ports, allowing for smooth physical integration into existing high-density switch faceplates.
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Advanced DSP Integration: Equipped with internal Digital Signal Processing (DSP) chips to actively equalize signals and minimize jitter across the link.
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Strict Thermal Management: PAM4 chips generate significant heat. Our metallic die-cast housings are heavily optimized to maintain industrial-grade stability.
Application Scenarios
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5G Fronthaul (CPRI/eCPRI) connections between Baseband Units (BBU) and Remote Radio Heads (RRH).
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50GbE Ethernet server-to-switch uplinks in next-generation cloud data centers.
Technical Specifications
| Specification | Details | Specification | Details |
| Form Factor | SFP56 | Vendor Name | WolonFiber |
| Max Data Rate | 53.125Gbps | Modulation Format | PAM4 |
| Wavelength | 850nm | Max Cable Distance | 100m @ OM4 |
| Connector | Duplex LC | Media | MMF |
| Transmitter Type | VCSEL | Receiver Type | PIN |
| TX Power | -6.5 to 4dBm | Receiver Sensitivity | < -8.4dBm |
| Power Budget | 1.9dB | Receiver Overload | 4dBm |
| Power Consumption | ≤ 1.5W | Extinction Ratio | > 3dB |
| DDM/DOM | Supported | Operating Temperature | 0 to 70°C (32 to 158°F) |
| CDR Integration | TX & RX Built-in CDR | Protocols | IEEE 802.3cd, SFF-8472, SFF-8419 |
Engineering FAQs
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Q: Many beginners ask,
what is sfp56and how does it differ from SFP28?
A: While physically identical in size to SFP28, the SFP56 utilizes PAM4 modulation instead of NRZ. This allows it to pack two bits of data into a single signal pulse, effectively transmitting 50Gbps instead of 25Gbps. -
Q: If I search for an
sfp 50gmodule, is it the same as SFP56?
A: Yes. In industry terminology, an sfp 50g refers strictly to the SFP56 form factor, distinguishing it from 50G QSFP28 modules which are larger. -
Q: Can WolonFiber code this module to be compatible as an
aruba 50g sfp56?
A: Absolutely. Our factory optical engineers can custom-flash the EEPROM to mirror the exact handshake protocols of HPE/Aruba networking gear, guaranteeing it performs flawlessly as an aruba 50g sfp56 equivalent. -
Q: Will this transceiver work in older SFP+ ports?
A: No. While it shares the physical dimensions, a 10G SFP+ port cannot process 50G PAM4 signals. The host switch must explicitly support 50GbE.
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