100GBASE-LR4 QSFP28 Industrial Transceiver: 100G-QSFP28-10I

The EdgeOptic 100G-QSFP28-10I is a 100GBASE-LR4 QSFP28 industrial-grade optical module for 100 Gigabit Ethernet over single-mode fiber. The transceiver carries four wavelength division multiplexed optical lanes (4 x 25G) that combine for an aggregate data rate of 103.125 Gbps, built for long-reach industrial, outdoor and harsh-environment deployments.

The 100G-QSFP28-10I operates on LAN WDM technology with four discrete wavelength channels at 1295.56, 1300.05, 1304.58 and 1309.14 nm, using NRZ modulation for signal encoding. The transmitter is a DML laser array and the receiver uses a PIN photodiode array. This architecture carries full-duplex 100G traffic over a duplex fiber pair: four channels are multiplexed onto the transmit fiber and demultiplexed from the receive fiber, each within the 1310 nm window.

The module carries a 6.3 dB guaranteed optical link budget, supporting distances up to 10 km over standard single-mode fiber. Distance is an indicative figure based on the guaranteed optical budget and average attenuation of typical single-mode fiber cabling; actual reach depends on the fiber plant in use. The duplex LC/UPC fiber configuration keeps cabling infrastructure simpler than parallel single-mode alternatives.

Average launch power per lane ranges from -4.3 to 4.5 dBm, with average receiver sensitivity between -10.6 and 4.5 dBm and a receiver overload point of 5.5 dBm. Minimum extinction ratio is 4 dB per lane.

The 100G-QSFP28-10I is a hot-pluggable QSFP28 module with dual LC/UPC connectors as the optical interface. The electrical interface follows the SFF-8636 and SFF-8665 MSA specifications, giving it a standard QSFP28 electrical footprint compatible with a broad range of host platforms supporting the QSFP28 MSA.

The module includes DDM/DOM functionality reporting transmit and receive optical power, module temperature, bias current and supply voltage. It supports the host FEC interface per its QSFP28 management; 100GBASE-LR4 itself meets IEEE 802.3ba's 10 km objective on its 6.3 dB link budget without requiring FEC. The 100G-QSFP28-10I operates across an industrial temperature range of -40°C to +85°C with a maximum power consumption of 3.5W on a single +3.3V supply. This wider tolerance is intended for outdoor enclosures, industrial facilities and other environments where the host chassis itself is not in a climate-controlled space.

Standards compliance includes IEEE 802.3ba for 100GBASE-LR4 and QSFP28 MSA electrical and mechanical requirements. The 100G-QSFP28-10I is CE and RoHS compliant and meets Class 1 laser safety requirements under FDA and IEC 60825-1.

Typical deployments include industrial automation backbones, outdoor cabinet installations, utility and smart grid infrastructure, transportation and rail networks, and oil and gas facilities where standard commercial-temperature optics are not sufficient for the operating environment.

The 100G-QSFP28-10I ships with a lifetime warranty, backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. For volume pricing or additional documentation, contact our sales team.