Huawei QSFP-100G-ER4-Lite (02311YXR) Compatible 100GBASE-ER4 Lite QSFP28 40km

EdgeOptic's QSFP-100G-ER4-Lite compatible is a Huawei coded 100GBASE-ER4 Lite QSFP28 transceiver built on the 100G-QSFP28-40 hardware platform. The module ships pre-programmed with the Huawei EEPROM values for the QSFP-100G-ER4-Lite ordering code, so the optic identifies on Huawei CloudEngine as the OEM transceiver. Huawei lists the same module under two ordering forms: the descriptive name QSFP-100G-ER4-Lite used in compatibility matrices and configuration guides, and the procurement BOM code 02311YXR used in Huawei ERP and channel-order systems. The EdgeOptic compatible covers either form. Don't confuse it with the full QSFP-100G-ER4 module, which is a different Huawei part on a wider optical budget; verify the BOM code for the full ER4 part in the Huawei hardware compatibility matrix.

Optically the module conforms to the 100GBASE-ER4 Lite specification. Four LAN-WDM channels at 1295.56, 1300.05, 1304.58 and 1309.14 nm each carry 25.78125 Gbps NRZ, multiplexed onto one duplex LC single-mode fiber pair. The transmitter is an EML array; the receiver is an APD array, providing the additional sensitivity that distinguishes ER4 Lite from a standard LR4 PIN-receiver build. ER4 Lite is not an IEEE 802.3ba or 802.3bm subclause and is not a 100G Lambda MSA grade; it is a generic 100GBASE-ER4 Lite specification used across vendor catalogs.

Reach is 40km on G.652 SMF with host RS-FEC enabled and 30km on the same fiber without FEC. Optical budget is 22 dB with FEC, 18 dB without. Host-side FEC is the gating requirement for the 40km reach; the optic itself is transparent to FEC and contains no internal FEC engine. Engineers planning data-center interconnect or campus core links between 30 and 40km should confirm the host port has RS-FEC available on the 100GE MAC and verify both ends match during commissioning. Without FEC the link will close at distances up to 30km on plant operating near typical 0.35 dB/km attenuation.

The QSFP-100G-ER4-Lite is supported on Huawei CloudEngine CE8800, CE12800 and CE16800 series data center and core switches with QSFP28 ports. Verify the optic against the Huawei hardware compatibility matrix for your specific switch model, line card and CloudEngine release before deployment, as supported optic lists vary by hardware family and firmware revision. CloudEngine validates transceiver vendor identifiers on insertion; with the Huawei coded EEPROM the module reports as a recognized optic in standard CloudEngine transceiver inventory output.

QSFP28 MSA SFF-8665 and SFF-8636 management compliance covers the electrical and software interfaces. DDM/DOM telemetry exposes per-lane TX and RX optical power, module temperature, supply voltage and laser bias current to the host for CLI inspection and SNMP polling. The duplex LC connector accepts standard SMF patch cords. Power draw is bounded at 4.5 W maximum; the commercial 0 to +70 degC case-temperature range covers central-office and metro POP environments. Connector hygiene matters at ER4 Lite reach budgets; inspect and clean both end-faces before turn-up to avoid attenuation that erodes the FEC margin.

Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. For BOM verification or volume pricing, contact our sales team.