Ciena 160-9403-900 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.

Key specifications

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

• Data rate: 103.1 Gb/s aggregate (4×25.78125 Gb/s).

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

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

• Connector: Duplex LC.

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

• Operating case temp: 0 °C to 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 Ciena 160-9403-900.

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) and 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 160-9403-900, 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.

We recognise that every project is unique, and our flexible approach allows us to adapt to your specific needs. Whether you require immediate delivery or have more complex requirements, we are here to support you every step of the way. Our commitment to customer satisfaction means that we go above and beyond to ensure that you receive your SFP transceivers in a timely manner, without compromising on quality. Trust Carritech to deliver the solutions you need, when you need them.

At Carritech Optics, we stand by the quality and reliability of our optical transceivers. That’s why we proudly offer a lifetime warranty on all products as a testament to our commitment to excellence and customer satisfaction.

What Does Our Lifetime Warranty Cover?

Our lifetime warranty provides comprehensive coverage for the entire lifecycle of your optical transceivers, ensuring you experience complete peace of mind when choosing Carritech Optics. The warranty covers:

• Defects in Materials and Workmanship: If your product experiences any issues related to manufacturing or materials, we’ll repair or replace it free of charge.
• Performance Assurance: Our optical transceivers are rigorously tested to meet industry standards, and we guarantee they’ll perform as expected in your network environment.

Easy Claims Process

Should you ever need to make a warranty claim, our team is here to assist you. Simply contact our support team with your product details, and we’ll guide you through a quick and hassle-free process to resolve the issue.

Your Network’s Performance, Guaranteed

Carritech Optics is dedicated to providing high-quality optical solutions that you can trust for the long haul. With our lifetime warranty, you can confidently invest in our products, knowing that we’re with you every step of the way.