Nokia 3AL82187AA Compatible QSFP-DD LR8 400G PAM4 1310nm 10km DOM Duplex LC/UPC SMF Optical Transceiver Module

The QSFP DD LR8 400G is a high-performance 400Gbps QSFP-DD optical transceiver designed for long-range communication over single-mode fiber (SMF) up to 10 kilometers. Utilizing an 8-lane MUX/DEMUX architecture, the module converts 8 channels of 50Gbps (PAM4) electrical input into optical signals and multiplexes them into a single 400Gbps optical output. On the receiver side, the process is reversed to deliver 8 channels of 50Gbps (PAM4) electrical output. This module is compliant with IEEE 802.3bs (400GBASE-LR8), QSFP-DD MSA and CMIS4.0 specifications, making it suitable for Ethernet, data center interconnect, enterprise, and InfiniBand networking applications.

The module features dual LC connectors, operates with a single +3.3V power supply, and supports a temperature range from 0°C to 70°C. With a maximum power consumption of 14.5W, it ensures efficient operation for high-speed optical networks. Its precise optical characteristics include a lane wavelength range from 1272.55nm to 1310.19nm, high extinction ratios, and reliable sensitivity. Designed for scalability and robust performance, the CT-400G-QDD-LR8 meets the stringent requirements of modern optical communication networks while being fully RoHS compliant.

All of our optical transceivers come with a lifetime warranty.

The CT-400G-QDD-LR8 is a hot-pluggable QSFP-DD optical module designed for 10 km Ethernet applications. It provides 400 Gb/s aggregate bandwidth by multiplexing 8×50 Gb/s PAM4 electrical lanes into 8 optical LAN-WDM channels, combined into a dual LC interface. On the receiver side, the module de-multiplexes the optical input into 8 channels and converts them to 50 Gb/s PAM4 electrical outputs. Host-based FEC is required to support 10 km transmission. The module operates on a single +3.3 V supply, consumes up to 14.5 W, and integrates digital diagnostics monitoring (DDM) with CMIS 4.0 management.

Key specifications

• Form factor / standards: QSFP-DD MSA; IEEE 802.3bs 400GBASE-LR8; CMIS 4.0.
• Data rate: 400 Gb/s (8×50 Gb/s PAM4 lanes).
• Reach: Up to 10 km on G.652 SMF (with FEC).
• Optical wavelengths (LAN-WDM grid): 1273–1310 nm across 8 channels.
• Connector: Dual LC.
• Power consumption: ≤ 14.5 W (typ. 4.39 A @ 3.3 V).
• Supply voltage: 3.13–3.47 V.
• Operating case temp: 0 °C to 70 °C.
• Diagnostics: DDM with CMIS 4.0 management interface.
• Compliance: IEEE 802.3bs, QSFP-DD MSA, RoHS.

Optical characteristics (per lane unless noted)

• 400GBASE-LR8 Ethernet links up to 10 km over SMF.
• Data center interconnect (DCI) requiring long-reach 400G optics.
• Enterprise and telecom backbone networking.
• InfiniBand interconnects.

Carritech Optics can offer a fully compatible, high-quality alternative to Nokia 3AL82187AA.

Carritech part number: CT-400G-QDD-LR8

• QSFP-DD MSA hot-pluggable form factor with dual LC connectors.
• 8-lane LAN-WDM design for 400GBASE-LR8.
• 10 km reach over SMF with host FEC.
• Power consumption ≤ 14.5 W.
• Integrated digital diagnostics with CMIS 4.0.
• RoHS compliant and 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 3AL82187AA, 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.