100GBASE-EZR4 QSFP28 1310nm 100km DOM Duplex LC/UPC SMF Optical Transceiver Module

The 100Gbps QSFP28 EZR4 Optical Transceiver is designed for ultra-long-distance optical communication, enabling 100G Ethernet transmission over single-mode fiber (SMF) with a reach of up to 100 kilometers. This high-performance module supports 100GBASE-EZR4 with a line rate of 103.125Gbps and OTU4 with a line rate of 111.81Gbps, making it ideal for long-haul networking, metro networks, and high-capacity backbone systems.

The transceiver incorporates a LAN WDM EML (Electro-Absorption Modulated Laser) and a PIN receiver with SOA (Semiconductor Optical Amplifier) to enhance signal integrity and transmission performance over extended distances. Featuring a 4-lane MUX/DEMUX architecture, it delivers an aggregate bandwidth exceeding 100Gbps, ensuring seamless data flow and reduced signal degradation. It is fully compliant with IEEE 802.3-2012 Clause 88 and ITU-T G.959.1 standards, guaranteeing interoperability with major networking infrastructure.

Designed for easy deployment, the QSFP28 ZR4 transceiver features duplex LC connectors, allowing for straightforward integration with existing fiber optic networks. It supports Forward Error Correction (FEC), significantly improving data transmission reliability by reducing bit errors and optimizing signal recovery over long distances.

Operating on a single +3.3V power supply, the module has a maximum power dissipation of 6.5W, making it energy-efficient for long-haul and metro network applications. It is designed for commercial operating environments with a temperature range of 0°C to 70°C, ensuring consistent performance in varying conditions.

Equipped with advanced digital diagnostic monitoring (DDM) via a 2-wire serial interface, the transceiver provides real-time access to critical performance parameters, including temperature, voltage, bias current, and optical power levels, allowing for proactive network maintenance and increased operational efficiency.

The QSFP28 ZR4 is RoHS compliant, adhering to strict environmental and safety regulations. Integrated built-in safety features protect against optical signal degradation and hardware failures, ensuring a dependable solution for long-distance optical communication in data centers, carrier networks, and high-capacity backbone systems.

All our transceiver products are covered with a lifetime warranty.

The CT-QSFP28-EZR4 is a high-performance optical transceiver designed for long-distance 100G Ethernet and OTU4 applications. It integrates a 4-lane MUX/DEMUX architecture, multiplexing four 25.78125 Gb/s electrical channels into four LAN-WDM optical lanes. The optical signals are combined onto a single SMF link via duplex LC connectors. The module operates from a single +3.3 V supply with a maximum power consumption of 6.5 W and supports digital diagnostics monitoring. It is compliant with IEEE 802.3-2012 Clause 88, IEEE 802.3bm CAUI-4, and ITU-T G.959.1 standards.

Key specifications

• Form factor / standards: QSFP28, IEEE 802.3-2012 Clause 88, IEEE 802.3bm CAUI-4, ITU-T G.959.1.
• Data rates: 100GBASE-ZR4 (103.125 Gb/s), OTU4 (111.81 Gb/s).
• Reach: Up to 100 km over G.652 SMF (with FEC).
• Wavelengths (LAN-WDM grid): 1295.56, 1300.05, 1304.58, 1309.14 nm.
• Connector: Duplex LC.
• Power consumption: 4–6.5 W; supply current 1.2–1.8 A.
• Supply voltage: 3.13–3.47 V.
• Operating case temp: 0 °C to +70 °C.
• Diagnostics: Digital diagnostics monitoring (DDM/DOM).
• Compliance: RoHS.

Optical characteristics (per lane unless noted)

• 100GBASE-EZR4 long-haul Ethernet links over metro and regional SMF networks up to 100 km.
• OTU4 transport systems for carrier-grade optical backbones.
• Data center interconnect (DCI) for extended reach beyond typical CWDM4 or LR4 modules.
• Telecom and enterprise networks requiring long-reach 100G Ethernet optics.

• Supports 100GBASE-EZR4 and OTU4 with LAN-WDM EML lasers and SOA-PIN receivers.
• 4-lane MUX/DEMUX QSFP28 design for >100 Gb/s aggregate bandwidth.
• Up to 100 km SMF reach with FEC, ideal for metro and backbone networks.
• Integrated digital diagnostics monitoring (DDM/DOM).
• Low power consumption (≤ 6.5 W) for extended reach optics.
• Duplex LC interface, QSFP28 hot-pluggable form factor.
• Compliant with IEEE 802.3, ITU-T G.959.1, RoHS.

At Carritech, we pride ourselves on our exceptional service and commitment to meeting our customers’ needs. Our extensive range of SFP transceivers, including the CT-QSFP28-EZR4, 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.