MikroTik XQ+31LC02D Compatible 100GBASE-CWDM4 QSFP28 1310nm 2km DOM Duplex LC/UPC SMF Optical Transceiver Module

The 100Gbps QSFP28 CWDM4 Optical Transceiver is a high-performance module designed for short-range communication over single-mode fiber (SMF) up to 2 kilometers. Compliant with QSFP28 MSA and 100G CWDM4 MSA standards, this transceiver operates with a 4-lane MUX/DEMUX design that consolidates four 25Gbps channels into a 100Gbps aggregate output. Each of the four CWDM channels utilizes specific wavelengths—1271nm, 1291nm, 1311nm, and 1331nm—to ensure robust and efficient data transmission. Equipped with a duplex LC connector, the module supports host Forward Error Correction (FEC) for maintaining signal integrity across extended distances.

Operating on a single +3.3V power supply with a power consumption of less than 3.5W, the transceiver is energy-efficient and reliable within a temperature range of 0°C to 70°C. It integrates advanced digital diagnostic monitoring to provide real-time feedback on operational parameters such as temperature, voltage, bias current, and optical power. The robust design includes ESD protection and laser safety compliance, making it suitable for applications like data center interconnects, 100G Ethernet, and enterprise networking, where high-speed and reliable performance are critical.

Designed to the QSFP28 MSA and 100G CWDM4 MSA Rev 1.1, this module multiplexes four 25.78125 Gb/s electrical lanes into four CWDM optical lanes and combines them onto a single SMF link; the receiver de-multiplexes and outputs four electrical lanes. It operates from a single 3.3 V supply, supports digital diagnostics (temperature, voltage, per-lane TX/RX power and bias), and is specified for 0 °C to 70 °C case temperature. Interface is duplex LC for optics and 38-pin QSFP28 edge connector for electrical.

Caratteristiche principali

• Form factor / standard: QSFP28; 100G CWDM4 MSA compliant; 4×25G OIF CEI-28G-VSR electrical interface.

• Velocità di trasmissione dati: 103.1 Gb/s aggregate (4×25.78125 Gb/s).

• Raggiungere: Up to 2 km over G.652 SMF with host FEC required.

• Optical wavelengths (CWDM grid): 1271, 1291, 1311, 1331 nm.

• Connettore: Duplex LC.

• Power / supply: < 3.5 W max; 3.3 V (VccTx/VccRx/Vcc1).

• Temperatura di esercizio dell'involucro: Da 0 °C a 70 °C.

• Management & controls: 2-wire (SCL/SDA), ModSelL, ResetL, LPMode, ModPrsL, IntL.

• Standards & compliance: ITU-T G.694.2 wavelength grid; RoHS.

• Safety/ESD: Laser Class 1 (EN 60825-1:2014; 21 CFR 1040.10/1040.11); ESD 1 kV (HS pins) / 2 kV (others), HBM.

Optical & electrical highlights (per lane unless noted)

Electrical performance: CEI-28G-VSR compliant AC characteristics; typical supply current ~1.06 A; Vcc 3.135–3.465 V; control input high 2.0 V to Vcc, low 0–0.8 V.

Absolute maximum ratings (selection): storage −40 to +85 °C; case 0 to +70 °C; Vcc −0.5 to 3.6 V; RH 0–85% non-condensing. Operating beyond absolute maximums may cause permanent damage.

Digital diagnostics (DMI) accuracy: temperature ±3 °C; supply voltage ±0.1 V; per-lane TX/RX power ±2 dB; bias current ±10%.

• 100G Ethernet leaf–spine and TOR uplinks over SMF where 2 km reach with FEC is acceptable.
• Data center interconnect (campus/metro-edge) within 2 km footprints.
• Enterprise networking and InfiniBand QDR/DDR environments requiring QSFP28 CWDM4 optics.

Carritech Optics can offer a fully compatible, high-quality alternative to MikroTik XQ+31LC02D.

Carritech part number: CT-QSFP28-CWDM4

• QSFP28 hot-pluggable CWDM4 design with 4× DFB lasers and integrated MUX/DEMUX.
• Up to 2 km over SMF with host FEC, optimized for low dispersion per ITU-T CWDM grid.
• Low power operation (< 3.5 W) e 0–70 °C case temperature support.
• Comprehensive diagnostics (DDM/DOM): temperature, voltage, per-lane TX/RX power and bias.
• Standard duplex LC interface and 38-pin QSFP28 electrical pinout with LPMode, IntL, ModPrsL.
• RoHS compliant; Laser Class 1; robust ESD protections for safe handling and deployment.

At Carritech, we pride ourselves on our exceptional service and commitment to meeting our customers’ needs. Our extensive range of SFP transceivers, including the XQ+31LC02D, is designed to cater to various requirements, ensuring that you receive the best solutions for your projects. We understand the importance of timely delivery, and our efficient processes are geared towards providing you with the products you need as quickly as possible. Our dedicated team works tirelessly to ensure that your orders are processed and dispatched promptly, so you can rely on us for swift and reliable service.

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