50GBASE-LR SFP56 Transceiver: 50G-SFP56-10

Our EDGEOPTIC 50G-SFP56-10 is multi-vendor compatible 50GBASE-LR SFP56 dual-fiber optical module designed for 50 Gigabit Ethernet applications operating over single-mode fiber cabling. The 50G-SFP56-10 module operates at 1310nm wavelength for transmission and reception, utilizing PAM4 (Pulse Amplitude Modulation 4-level) modulation to achieve 53.125 Gbps data rates while supporting multi-rate operation including 10G Ethernet (10.31Gbps) and 25G Ethernet (25.78Gbps). Our 50GBASE-LR SFP56 transceiver delivers reliable long-reach connectivity for metro and campus network deployments.

The transceiver utilizes EML (Electro-absorption Modulated Laser) technology for transmission and PIN photodiode for receiving. This optical configuration ensures a 6.3 dB guaranteed link budget, optimized for single-mode fiber applications requiring extended reach. Over standard single-mode fiber, the transceiver reliably achieves 10 kilometers transmission distance, making it suitable for campus interconnects and metropolitan area network 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-SFP56-10 compatible 50GBASE-LR 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-LR 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 over longer distances.

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 3W maximum power consumption, the module maintains stable performance suitable for various deployment environments including controlled data centers and edge locations.

Standards compliance includes IEEE 802.3cd for 50 Gigabit Ethernet, along with SFP56 MSA and SFF-8431 specifications. The multi-rate capability accommodates legacy 10 Gigabit and 25 Gigabit Ethernet operation alongside native 50 Gigabit rates, providing exceptional operational flexibility for mixed-speed network deployments and phased infrastructure upgrades. Our 50G SFP56 LR transceiver is CE/RoHS certified and compliant with Class 1 FDA and IEC60825-1 laser safety standards.

Typical applications are campus backbone connections, metropolitan area networks, data center interconnect links, and carrier access networks requiring 50G bandwidth over longer distances. The PAM4 modulation technology combined with EML laser architecture enables cost-effective deployment of 50G connectivity over existing single-mode fiber infrastructure. 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.