Solid Optics NOKR-CFP2-100G-LR4-LC-SO CFP2 100GBASE-LR4 Transceiver

The Solid Optics NOKR-CFP2-100G-LR4-LC-SO (also known as a Cisco CFP2-100G-LR4 compatible module) is a hot-pluggable CFP2 (C Form-factor Pluggable 2) optical transceiver module designed for 100 Gigabit Ethernet applications. It provides a single bidirectional 100 Gbit/s optical interface compliant with IEEE 802.3ba 100GBASE-LR4 specifications at a nominal line rate of 103.125 Gbit/s (4 × 25.78125 Gbit/s).This module uses a LAN-WDM (Local Area Network Wavelength Division Multiplexing) transmitter with four cooled DFB lasers operating at nominal center wavelengths of 1295.56 nm, 1300.05 nm, 1304.58 nm, and 1309.14 nm (aggregated around 1310 nm). It employs a PIN photodiode array receiver optimized for single-mode fiber (SMF 9/125 µm, G.652). The typical transmission distance reaches up to 10 km with a link power budget of approximately 6.3 dB. Transmitter output power per lane is typically in the range of -4.3 dBm to +4.5 dBm, while receiver sensitivity supports reliable performance with low bit error rates (better than 10⁻¹²) over the specified reach.
The transceiver complies with the CFP2 MSA, IEEE 802.3ba 100GBASE-LR4, and ITU-T G.959.1 standards. It features a 4 × 25 Gbit/s electrical interface (CEI-28G-VSR) and supports both Ethernet and OTN (OTU4) mappings where applicable. Digital diagnostics and monitoring (DDM/DOM) are available via the MDIO management interface, providing real-time access to parameters such as transmitted and received optical power per lane, laser bias current, temperature, and supply voltage for performance monitoring and fault isolation.
Optical connectivity is realized through a duplex LC connector. Key operational features include Loss of Signal (LOS) detection, automatic laser shutdown for eye safety (Class 1 laser product), and hot-pluggable support. The module operates with a +3.3 V power supply and features low power consumption (typically less than 6 W), making it suitable for high-density 100 Gbit/s deployments in routers, switches, and optical transport platforms.
Environmental specifications include a commercial operating case temperature range of 0°C to +70°C (with some variants supporting -5°C to +70°C), high humidity tolerance, and RoHS-6 compliance. This CFP2 transceiver is primarily used for 100 Gbit/s point-to-point links in metro access, data center interconnects, or aggregation networks, offering full compatibility with Nokia and Cisco CFP2 ports.
The module integrates seamlessly with network management systems via MDIO for remote provisioning and monitoring. Installation requires standard fiber optic cleaning procedures, correct Tx/Rx fiber polarity, and adherence to minimum bend radius guidelines for duplex LC patch cords. The Solid Optics NOKR-CFP2-100G-LR4-LC-SO delivers a reliable, high-performance, and cost-effective solution for 100 Gbit/s optical transport over single-mode fiber up to 10 km while maintaining full interoperability with target OEM equipment.