200GBASE-FR4 QSFP56 Compatible Transceiver: 200G-QSFP56-2.1

Our EDGEOPTIC 200G-QSFP56-2.1 is a multi-vendor compatible 200GBASE-FR4 QSFP56 optical module designed for high-bandwidth 200 Gigabit Ethernet applications operating over single-mode fiber infrastructure. The 200G-QSFP56-2.1 module operates across four CWDM wavelengths (1271, 1291, 1311, and 1331nm), delivering aggregate data rates up to 212.5 Gbps using advanced PAM4 (Pulse Amplitude Modulation 4-level) signaling technology at 53.125 Gbps per lane. Our 200GBASE-FR4 QSFP56 transceiver utilizes DFB (Distributed Feedback) laser technology for transmission and PIN photodiode arrays for receiving, optimized for campus interconnects and metropolitan area network deployments requiring maximum bandwidth with extended reach.

The transceiver ensures a 4 dB guaranteed optical link budget, which determines the maximum transmission distance capabilities. Over standard single-mode fiber, the transceiver reliably reaches distances up to 2 kilometers with host FEC (Forward Error Correction) enabled, making it ideal for data center interconnect and enterprise campus backbone applications. However, distance is just an indicative parameter calculated for convenience of identification – ultimately we calculate reach taking into account minimal optical budget and average attenuation of optical cabling in industry standards. The module's duplex LC/UPC connector architecture provides familiar fiber management while enabling wavelength division multiplexing for maximum spectral efficiency.

200G-QSFP56-2.1 compatible module is a hot-pluggable QSFP56 with double LC/UPC connectors as the optical interface, supporting high-density deployments in modern network architectures requiring extended reach connectivity. The electrical interface conforms to QSFP56 MSA and SFF-8679 specifications, ensuring compatibility with standard QSFP56 host systems supporting multiple vendor equipment platforms. Our 200GBASE-FR4 QSFP56 transceiver can be encoded to be compatible and successfully operate in different 80+ brands of networking equipment. The module incorporates comprehensive DDM/DOM (Digital Diagnostic Monitoring) functionality providing real-time operational data including transmitted and received optical power levels per wavelength channel, module temperature, bias current, and supply voltage monitoring. This diagnostic data is accessible via CMIS V4.0 compliant interface, enabling sophisticated performance monitoring and proactive maintenance strategies.

The module operates within a 0 to 70°C temperature range with 6.5W maximum power consumption, engineered for reliable operation in controlled data center and enterprise environments. Standards compliance includes IEEE 802.3bs for 200GBASE-FR4, along with QSFP56 MSA specifications ensuring broad platform interoperability. The transceiver's combination of PAM4 modulation and CWDM wavelength multiplexing maximizes bandwidth efficiency over duplex single-mode fiber infrastructure. Our QSFP56 transceiver achieves multi-vendor compatibility through adherence to industry MSA standards, though equipment with vendor-specific module validation may require custom EEPROM programming for seamless integration. The module is CE/RoHS certified and compliant with international product safety standards.

Typical applications include data center interconnects, enterprise campus core networks, metropolitan area network aggregation, and cloud service provider edge deployments. The 200GBASE-FR4 capability with 2km reach provides critical bandwidth for distributed computing architectures while eliminating the need for external multiplexing equipment. The PAM4 signaling technology enables doubling of data rates over existing optical infrastructure, protecting network investments while supporting bandwidth growth. Because our focus is providing top quality service, we perform rigorous quality checks before delivery of our products. As a result, we conduct optical parameter measurements across all CWDM wavelengths with PAM4 signal integrity validation, connector cleanliness tests, and QSFP56 transceiver EEPROM memory data validation tests.