Brocade E100G-QSFP28-ER4L Compatible 100GBASE-ER4L QSFP28 1310nm 30km DOM Duplex LC/UPC SMF Optical Transceiver Module

The 100Gbps QSFP28 ER4 Lite Optical Transceiver is engineered for long-distance data communication over single-mode fiber (SMF) up to 30 kilometers without Forward Error Correction (FEC) and 40 kilometers with FEC. Operating on a 4-channel LAN WDM design, the module converts four 25Gbps electrical inputs into optical signals, multiplexing them for 100Gbps transmission. The transceiver features cooled EML lasers for precise wavelength control and high-sensitivity APD receivers, ensuring reliable performance for 100G Ethernet applications.

This transceiver operates on a single +3.3V power supply with a maximum power consumption of 4.5W and is compatible with IEEE 802.3ba and QSFP28 MSA standards. It provides advanced digital diagnostics for monitoring operational parameters like temperature, voltage, and optical power, ensuring optimal performance. The hot-pluggable QSFP28 form factor and duplex LC connector simplify deployment and integration. Compliant with RoHS standards and laser safety regulations, this transceiver is ideal for applications like 100GBASE-ER4 Ethernet links, Infiniband interconnects, and client-side telecom connections.

The CT-QSFP28-ER4-L is a 100Gb/s optical transceiver designed for Ethernet 100GBASE-ER4 Lite applications. It multiplexes four 25 Gb/s electrical channels into four LAN-WDM optical channels (1295–1310 nm), combined into a single SMF link. On the receiver side, APD-based ROSA ensures high sensitivity for extended reach. The module supports 30 km reach without FEC and 40 km with FEC, operates from a +3.3 V supply with ≤ 4.5 W power, and provides built-in digital diagnostics monitoring (DDM/DOM). It is built for QSFP28 MSA compliance and RoHS-6 standards.

Key specifications

• Form factor / standards: QSFP28 MSA; 100GBASE-ER4 Lite compliant.
• Data rate: 103.1 Gb/s aggregate (4×25.78125 Gb/s).
• Reach: 30 km (no FEC) / 40 km (with FEC) over G.652 SMF.
• Optical wavelengths (LAN-WDM grid): 1295.56, 1300.05, 1304.58, 1309.14 nm.
• Connector: Duplex LC.
• Power consumption: ≤ 4.5 W; typical supply current ~1.36 A.
• Supply voltage: 3.135–3.465 V.
• Operating case temp: 0 °C to 70 °C.
• Diagnostics: DDM/DOM with monitoring of temperature, voltage, bias current, and optical power.
• Compliance: RoHS-6; Laser Class 1 (EN 60825-1:2014; 21 CFR 1040.10/1040.11).

Optical characteristics (per lane unless noted)

• 100GBASE-ER4 Ethernet links for metro and regional connectivity.
• Infiniband QDR/DDR interconnects in HPC and enterprise environments.
• Client-side 100G telecom connections with medium-long reach requirements.

Carritech Optics can offer a fully compatible, high-quality alternative to Brocade E100G-QSFP28-ER4L.

Carritech part number: CT-QSFP28-ER4-L

• QSFP28 MSA hot-pluggable form factor with duplex LC connector.
• Up to 30 km reach (40 km with FEC) over G.652 SMF.
• Cooled LAN-WDM EML transmitters paired with high-sensitivity APD receivers.
• Low power consumption (≤ 4.5 W) optimized for long-reach use.
• Digital diagnostics monitoring (DDM/DOM) with key optical/electrical parameter reporting.
• RoHS-6 compliant, Class 1 laser safe.

At Carritech, we pride ourselves on our exceptional service and commitment to meeting our customers’ needs. Our extensive range of SFP transceivers, including the E100G-QSFP28-ER4L, 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.