100GBASE-BX40-D QSFP28 BiDi 1309.14nm-TX/1304.58nm-RX 40km DOM Simplex LC/APC SMF Optical Transceiver Module

The 100Gbps QSFP28 BIDI ER Transceiver is a high-performance optical module designed for long-distance communication over single-mode fiber (SMF) up to 40 kilometers. Supporting 100GBASE-ER BIDI with a lane signaling rate of 106.25Gbps using PAM4 modulation, the module features an EML laser transmitter and an APD receiver for robust data transmission. With a 4×25.78Gbps NRZ electrical interface and a simplex LC connector, it ensures efficient and reliable high-speed data transfer. The transceiver adheres to QSFP28 MSA, IEEE 802.3cu, SFF-8636, and SFF-8679 standards, making it ideal for high-performance networking applications.

Operating with a single +3.3V power supply and a maximum power consumption of 4.5W, the module functions within a case temperature range of 0°C to 70°C. Advanced digital diagnostic monitoring provides real-time feedback on temperature, voltage, bias current, and optical power. Its compliance with EU Directive 2015/863/EU and RoHS ensures environmentally friendly operation. The QSFP28 BIDI ER Transceiver is a reliable choice for long-range, high-speed communication in data centers and enterprise networks.

The CT-QSFP28-BX-40U and CT-QSFP28-BX-40D are high-performance BiDi QSFP28 modules designed for long-reach single-fiber transmission. Each module provides a 100 Gb/s PAM4 optical channel by multiplexing 4×25 Gb/s electrical lanes into one optical signal. The BX-40U transmits at 1304.58 nm and receives at 1309.14 nm, while the BX-40D operates with the reverse wavelengths. Both support up to 40 km over G.652 SMF, operate on a single +3.3 V power supply, and consume ≤ 4.5 W.

Key specifications

• Form factor / standards: QSFP28 MSA; 100G Lambda MSA 100G-ER1; IEEE 802.3cu; ITU-T G.959.1.
• Data rate: 100 Gb/s (4×25G electrical lanes, PAM4 optical).
• Reach: Up to 40 km over G.652 SMF.
• Wavelengths:
  • BX-40U: TX 1304.58 nm, RX 1309.14 nm.
  • BX-40D: TX 1309.14 nm, RX 1304.58 nm.
• Connector: Simplex LC.
• Power consumption: ≤ 4.5 W.
• Supply voltage: 3.13–3.47 V.
• Operating case temp: 0 °C to 70 °C.
• Compliance: RoHS; IEEE 802.3cu; QSFP28 MSA.

Optical characteristics

• 100GBASE-BX Ethernet up to 40 km over SMF.
• Data center interconnect (DCI) using single-fiber bidirectional transmission.
• Enterprise and telecom networks requiring efficient fiber utilization.

• BiDi QSFP28 design with simplex LC interface reduces fiber usage.
• 40 km reach with PAM4 modulation.
• Wavelength pairs at 1304/1309 nm for complementary U/D operation.
• Power-efficient operation (≤ 4.5 W).
• Compliant with 100G Lambda MSA, IEEE 802.3cu, and ITU-T G.959.1.

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-40D, 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.