400G QSFP112 LR4 Compatible Transceiver: 400G-QSFP112-10

Our EDGEOPTIC 400G-QSFP112-10 is a multi-vendor compatible 400G QSFP112 LR4 optical transceiver module designed for extended-reach 400 Gigabit Ethernet applications over single-mode fiber infrastructure. The 400G-QSFP112-10 module employs 4-channel CWDM technology operating at 1271, 1291, 1311, and 1331 nm wavelengths, with each lane transmitting at 106.25 Gbps using PAM4 modulation to achieve an aggregate data rate of 425 Gbps. This next-generation QSFP112 form factor delivers 100G-per-lane optical density with efficient wavelength multiplexing over duplex fiber connectivity for metro and campus network deployments.

Our 400G QSFP112 LR4 transceiver utilizes EML (Electro-absorption Modulated Laser) transmitters for each wavelength channel, providing the high output power and precise spectral characteristics required for extended-distance CWDM transmission at 100G per lane rates. The receiver section incorporates PIN photodiodes optimized for the CWDM wavelength grid spanning 1264.50 to 1337.50 nm (73 nm bandwidth). The module ensures a 6.3 dB guaranteed optical link budget, supporting transmission distances up to 10 kilometers over standard single-mode fiber. However, distance is an indicative parameter calculated for identification purposes – ultimately we calculate reach taking into account minimal optical budget and average attenuation characteristics of the deployed fiber plant.

The 400G-QSFP112-10 compatible LR4 module is a hot-pluggable QSFP112 form factor transceiver with duplex LC/UPC connectors as the optical interface. The electrical interface conforms to QSFP112 MSA and CMIS V5.0 specifications, ensuring compatibility with latest-generation QSFP112 host systems across multiple vendor equipment platforms. Our 400G QSFP112 LR4 transceiver can be encoded for compatibility with latest platforms from leading vendors including Cisco, Juniper, Arista, Nokia, Huawei, and other major network equipment manufacturers deploying next-generation switching infrastructure. The module supports host-side Forward Error Correction and incorporates CDR (Clock and Data Recovery) functionality on all electrical lanes.

The transceiver includes DDM/DOM (Digital Diagnostic Monitoring) capability providing real-time operational parameters including transmitted and received optical power levels per wavelength channel, module temperature, bias current, and supply voltage. This diagnostic data is accessible via the CMIS-compatible management interface, enabling comprehensive monitoring of transceiver health and performance. The module operates within a 0 to 70°C commercial temperature range with maximum power consumption of 12W, requiring appropriate thermal management in high-density deployment scenarios.

Standards compliance includes 400GBASE-LR4 specifications and 100G Lambda MSA for the optical interface. The transceiver achieves multi-vendor interoperability through adherence to industry QSFP112 MSA standards, though equipment with vendor-specific module authentication may require custom EEPROM programming for full compatibility. Our 400G QSFP112 LR4 transceiver is CE/RoHS certified.

Typical applications include data center interconnects, campus backbone connections, metropolitan area network links, and enterprise deployments requiring high-bandwidth connectivity over intermediate distances with duplex fiber efficiency. The LR4 architecture in QSFP112 form factor provides optimal reach with next-generation 100G-per-lane technology for future-ready network infrastructure. Because our focus is providing top quality service, we perform comprehensive quality verification before delivery including optical parameter measurements across all wavelength channels, connector cleanliness inspection, and QSFP112 transceiver EEPROM memory validation tests.