50GBASE-SR SFP56 Transceiver: 50G-SFP56-100

Our EDGEOPTIC 50G-SFP56-100 is multi-vendor compatible 50GBASE-SR SFP56 dual-fiber optical module designed for 50 Gigabit Ethernet applications operating over multimode fiber cabling. The 50G-SFP56-100 module operates at 850nm wavelength for transmission and reception, utilizing PAM4 (Pulse Amplitude Modulation 4-level) modulation to achieve 53.125 Gbps data rates while maintaining efficient power consumption and signal integrity. Our 50GBASE-SR SFP56 transceiver supports modern data center architectures requiring high-density 50G connectivity.

The transceiver utilizes VCSEL (Vertical-Cavity Surface-Emitting Laser) technology for transmission and PIN photodiode for receiving. This optical configuration ensures a 1.9 dB guaranteed link budget, optimized for short-reach multimode fiber applications. Over OM4 and OM5 multimode fiber, the transceiver reliably reaches 100 meters distance, while OM3 cabling supports shorter reach deployments. However, distance is just indicative parameter calculated for comfort of identification – eventually we calculate distance taking in account minimal optical budget and average attenuation of optical cabling in industry.

50G-SFP56-100 compatible 50GBASE-SR module is hot-pluggable SFP56 with duplex LC/UPC connectors as an optical interface. The electrical interface conforms to SFP56 MSA (Multi-Source Agreement) specifications and SFF-8472 standards, ensuring compatibility with standard SFP56 host systems supporting multiple vendor equipment platforms. Our 50GBASE-SR SFP56 transceiver can be encoded to be compatible and successfully operate in different 80+ brands of equipment. The module incorporates host-based Forward Error Correction (FEC) support and integrated CDR (Clock and Data Recovery) functionality, essential for maintaining signal integrity in PAM4 modulated systems.

The module features comprehensive DDM/DOM (Digital Diagnostic Monitoring) functionality providing real-time information including transmitted and received optical power levels, module temperature, bias current, and supply voltage. This diagnostic data are available via MSA-compatible EEPROM interface and enables monitoring of transceiver operational parameters. Operating within a 0 to 70°C temperature range with 2W maximum power consumption, the module maintains efficient thermal performance suitable for high-density data center deployments.

Standards compliance includes IEEE 802.3cd for 50 Gigabit Ethernet, along with SFP56 MSA and SFF-8431 specifications. The transceiver achieves multi-vendor interoperability through adherence to industry MSA standards, though equipment with vendor-specific module validation may require custom EEPROM programming for compatibility. Our 50G SFP56 SR transceiver is CE/RoHS certified and compliant with Class 1 FDA and IEC60825-1 laser safety standards.

Typical applications are spine-leaf data center architectures, high-performance computing clusters, aggregation layer connectivity, and enterprise core networks requiring 50G bandwidth. The PAM4 modulation technology enables cost-effective migration from 25G to 50G infrastructure while maintaining existing multimode fiber plants. Because our focus is providing top quality service, we are performing serious quality checks before delivery of our products. As a result, we do optical parameter measurements, connector cleanness tests and SFP56 transceiver EEPROM memory data validation tests.