100GBASE-BX80-U QSFP28 BiDi 1270nm-TX/1310nm-RX 80km DOM Simplex LC/APC SMF Optical Transceiver Module

The 100Gbps QSFP28 BX-80 Transceiver is a high-performance module designed for ultra-long-distance communication over single-mode fiber (SMF) up to 80 kilometers. It supports 100GBASE-ZR4 and OTU4 with a line rate of 103.125Gbps and 111.81Gbps, respectively. This module features 4x25Gbps LAN WDM Blue or Red Side TOSA and LAN WDM Purple or White Side ROSA with SOA. It uses a simplex LC connector for efficient signal transmission and adheres to IEEE 802.3 standards, ITU-T G.959.1, and QSFP28 MSA specifications, ensuring compatibility with high-speed networking systems. It is ideal for applications in data centers and enterprise networks requiring long-range connectivity.

Operating with a single +3.3V power supply and a maximum power consumption of 6.5W, the module supports a case operating temperature range of 0°C to 70°C. The transmitter provides a total average launch power between 8dBm and 12.5dBm, with a high extinction ratio of 6dB. The receiver has a sensitivity of -28dBm per lane and supports advanced diagnostic monitoring via an I2C interface. This hot-swappable transceiver is RoHS compliant, making it an environmentally friendly choice for demanding network environments. Its robust design and advanced features ensure reliable, high-speed optical communication over extended distances.

The CT-QSFP28-BX-80U and CT-QSFP28-BX-80D are long-haul bidirectional QSFP28 optical modules designed for 100GBASE-ZR4 and OTU4 transport. Each module multiplexes 4×25.78125 Gb/s electrical channels into 4 LAN-WDM optical channels, transmitted over a single fiber via simplex LC. The BX-80U transmits on 1273–1286 nm and receives on 1295–1310 nm, while the BX-80D uses the reverse. Modules must be paired for full-duplex operation. Supporting distances up to 80 km with FEC, they operate from a single +3.3 V supply, consume up to 6.5 W, and include digital diagnostics monitoring (DDM/DOM).

Key specifications

• Form factor / standards: QSFP28 MSA; 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 80 km over G.652 SMF (with FEC).
• Wavelengths:
  • BX-80U TX: 1273.54, 1277.89, 1282.26, 1286.66 nm; RX: 1295.56, 1300.05, 1304.58, 1309.14 nm
  • BX-80D TX: 1295.56, 1300.05, 1304.58, 1309.14 nm; RX: 1273.54, 1277.89, 1282.26, 1286.66 nm
• Connector: Simplex 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: DDM/DOM with I²C access.
• Compliance: RoHS-6; Laser Class 1.

Optical characteristics (per lane unless noted)

• 100GBASE-ZR4 Ethernet transport up to 80 km on a single fiber.
• Data center interconnect (DCI) over long single-fiber links.
• Telecom metro and backbone networks requiring simplex fiber savings.

• Bidirectional QSFP28 ZR4 design with complementary wavelength sets.
• Simplex LC connector, reducing fiber requirements by 50%.
• Up to 80 km reach over SMF with FEC.
• Supports 100GBASE-ZR4 and OTU4 for Ethernet and telecom transport.
• Integrated digital diagnostics monitoring (DDM/DOM).
• Hot-swappable QSFP28, 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 CT-QSFP28-BX-80U, 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.