Nokia (Alcatel-Lucent) QSFP-100G-ER4 compatible 100G QSFP28 ER4 40km Module

QSFP-100G-ER4 is an MSA-standard designator used in Nokia (Alcatel-Lucent) documentation for a 100GBASE-ER4 Lite QSFP28 transceiver, also ordered under Nokia internal code 3HE11239AA. The EdgeOptic 100G-QSFP28-40 is a compatible replacement with EEPROM coded for Nokia SR OS recognition. It operates over duplex single-mode fiber at four LAN WDM wavelengths (1295.56, 1300.05, 1304.58, and 1309.14nm), reaching up to 40km with host FEC or 30km without FEC.

The module uses EML transmitters and APD (Avalanche Photodiode) receivers, carrying four lanes at 25.78125 Gbps each for an aggregate 103.125 Gbps line rate with NRZ modulation. The APD receiver architecture provides the sensitivity needed for 40km reach. Optical link budget is 22dB with host FEC enabled or 18dB without FEC. With FEC, the coding gain (typically 2.5–4dB) improves effective receiver sensitivity, extending reach over standard OS2 fiber. Maximum power consumption is 4.5W.

The QSFP-100G-ER4 works in QSFP28 line cards based on Nokia FP4 and FP5 in the 7750 SR (including SR-7s, SR-14s, SR-1s), 7250 IXR, and 7950 XRS platform families. Because the module EEPROM is programmed with Nokia-compatible vendor data, it is recognized by SR OS as a supported optic.

Nokia uses two part numbers for this module. QSFP-100G-ER4 is the MSA-standard designation used in Nokia documentation and compatibility lists. 3HE11239AA (full ordering code 3HE11239AARA01) is Nokia’s internal catalog number for the same transceiver.

DDM/DOM per QSFP28 MSA (SFF-8636) reports per-lane TX and RX optical power, laser bias current, temperature, and supply voltage. Compliant with QSFP28 MSA (SFF-8665) and 100GBASE-ER4 Lite specification. Class 1 laser safe per IEC 60825-1. CE and RoHS certified for commercial temperature range 0°C to 70°C.

Operates over G.652 single-mode fiber (OS1/OS2 compliant) using duplex LC connectors.

ER4 Lite follows a 100GBASE-ER4 Lite specification for 40km reach using APD receivers and host FEC. The four LAN WDM wavelengths (1295.56, 1300.05, 1304.58, 1309.14nm) and NRZ modulation match standard LR4, allowing ER4 Lite modules to interoperate with LR4 at the LR4 distance of 10km when operated within LR4 optical parameters.

ER4 Lite is deployed on extended metro DCI, 20–40km carrier aggregation over dark fiber, submarine cable client connections, and fiber-constrained backhaul without WDM amplification. RS-FEC on the host platform extends effective receiver sensitivity by 2.5–4 dB of coding gain, enabling the 40km reach.

At 40km over G.652 single-mode fiber with 0.35 dB/km attenuation, fiber loss alone consumes 14 dB, leaving roughly 8 dB for connectors, splices, and aging within the 22 dB link budget. Deploy with high-quality UPC connectors, minimize splice count, and verify installed fiber attenuation with OTDR measurements before commissioning long-span ER4 Lite links.

Lifetime warranty included. For volume pricing, contact our sales team.