25G CWDM SFP28 15km Premium Transceiver: CWDM-25G-SFP28-15P

Our EDGEOPTIC CWDM-25G-SFP28-15P is a multi-vendor compatible high-performance 25G CWDM SFP28 dual-fiber optical module designed for wavelength division multiplexed 25 Gigabit Ethernet applications operating over single-mode fiber cabling. The CWDM-25G-SFP28-15P module supports transmission across 10 CWDM channels from 1350nm to 1610nm with 20nm channel spacing, with data rates from 8.5 to 28.1 Gbps supporting multiple protocol standards and applications. Our high-performance 25G CWDM SFP28 transceiver utilizes DML (Directly Modulated Laser) technology for transmission and APD (Avalanche Photodiode) for receiving, delivering superior optical performance for metropolitan and campus CWDM network deployments.

The transceiver ensures an exceptional 19 dB guaranteed optical link budget with host-based Forward Error Correction (FEC) support, which determines the maximum transmission distance capabilities. Over standard single-mode fiber (SMF), the module achieves reliable transmission up to 20 kilometers with significantly enhanced margin compared to standard transceivers, making it ideal for CWDM networks with higher insertion losses, multiple add-drop nodes, or applications requiring additional optical budget reserve. However, distance is just an indicative parameter calculated for convenience of identification – eventually we calculate distance taking into account minimal optical budget and average attenuation of optical cabling in industry standards. The high-performance architecture enables reliable operation in complex CWDM systems where standard transceivers may struggle.

CWDM-25G-SFP28-15P compatible high-performance wavelength-specific module is hot-pluggable SFP28 with duplex LC/UPC connectors as an optical interface. The electrical interface conforms to SFF-8431, SFF-8432, and SFF-8472 MSA (Multi-Source Agreement) specifications, ensuring compatibility with standard SFP28 host systems supporting multiple vendor equipment platforms. Our high-performance 25G CWDM SFP28 transceiver can be encoded to be compatible and successfully operate in different 80+ brands of equipment. The module incorporates 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 is available via MSA-compatible EEPROM interface, enabling continuous monitoring of transceiver operational parameters essential for high-performance CWDM channel management.

The module operates within a 0 to 70°C temperature range with maximum power consumption of 1.2W, optimized for deployment in controlled environment data centers and telecom facilities. Standards compliance includes IEEE 802.3cc specifications for 25 Gigabit Ethernet, supporting both 10G Ethernet (10.31 Gbps) and 25G Ethernet (25.78 Gbps) applications. The DML laser technology provides robust output power from 0 to 7 dBm with minimum extinction ratio of 3.5 dB across the 10 supported CWDM channels (1350nm-1610nm). The APD photodiode receiver delivers outstanding sensitivity of -19 dBm with wide-band reception capability spanning the entire CWDM grid from 1270nm to 1610nm, providing 5 dB better sensitivity than standard PIN-based receivers. This enhanced receiver performance combined with robust transmit power creates the exceptional 19 dB link budget. The receiver overload protection at -7 dBm ensures safe operation while enabling flexible channel reception. The transceiver achieves multi-vendor interoperability through adherence to SFP28 MSA standards, though equipment with vendor-specific module validation may require custom EEPROM programming for compatibility.

Our high-performance 25G CWDM SFP28 transceiver is CE/RoHS certified and compliant with Class 1 FDA and IEC60825-1 laser safety standards. Typical applications include metro access CWDM networks with multiple nodes, enterprise campus deployments requiring extra margin, data center interconnects with high connector losses, and service provider networks demanding superior performance and reliability. The enhanced 19 dB link budget provides crucial operational margin for network aging, connector contamination, and unexpected losses while maintaining error-free performance. The CWDM capability enables operators to deploy up to 10 independent 25G channels over existing fiber infrastructure, providing 250 Gbps aggregate capacity with exceptional reach. The multi-rate capability accommodates legacy 10 Gigabit Ethernet operation alongside native 25 Gigabit rates, providing operational flexibility for mixed-speed network deployments. Because our focus is providing top quality service, we perform rigorous quality checks before delivery including optical parameter measurements across all CWDM channels, enhanced APD sensitivity validation, wavelength accuracy verification, connector cleanliness tests, and SFP28 transceiver EEPROM memory data validation tests, ensuring superior performance at the specified wavelength.