Fortinet FN-TRAN-QSFP-BIDI Compatible QSFP-40G-SRBD 40GBASE-SRBD QSFP+ BiDi 850/880/910/940nm 300m DOM Duplex LC/UPC MMF Optical Transceiver Module

The 40Gbps QSFP+ SRBD Optical Transceiver is a high-performance, short-range module designed for duplex data communication over multimode fiber (MMF) using LC duplex connectors. Operating at a wavelength of 850nm and 900nm, the transceiver integrates four electrical lanes into two optical channels, each with a 20Gbps capacity, achieving a total aggregate bandwidth of 40Gbps. It supports transmission distances of up to 100 meters with OM3 fiber and 150 meters with OM4 fiber. The module adheres to QSFP+ MSA and IEEE 802.3ba standards, making it an ideal solution for 40Gb Ethernet interconnects, data aggregation, and high-speed backplane applications.

This transceiver operates on a single +3.3V power supply with a power consumption of up to 3.5W. Its hot-pluggable design allows for easy integration and maintenance, while its RoHS compliance ensures environmentally friendly use. Advanced features include internal multiplexing and demultiplexing for efficient signal handling and Loss of Signal (LOS) detection for enhanced diagnostics. The electrical interface uses a QSFP+ type edge connector, and the optical interface utilizes a conventional LC duplex connector, enabling reuse of existing cabling infrastructure. With an operating temperature range of 0°C to 70°C, this transceiver is a reliable choice for high-speed, short-range networking applications.

This hot-pluggable QSFP+ module integrates four electrical lanes at 10.3125 Gbps each, multiplexed into two 20 Gbps optical channels for a total 40Gbps bandwidth. It complies with IEEE 802.3ba 40GBASE-SR4 XLPPI and QSFP+ MSA (SFF-8436). Designed for reuse of legacy duplex LC cabling, it enables 40G Ethernet deployment without MPO infrastructure. The module operates over MMF with typical power dissipation of 2.5 W (max 3.5 W) on a single 3.3 V supply. Operating case temperature is 0 °C to +70 °C. Note: digital diagnostics are not supported.

Key Parameters

• 40GBASE Ethernet interconnects.
• Data center switch and router uplinks.
• Aggregation and backplane applications.
• Cost-effective 40G upgrades using legacy duplex LC cabling.

Carritech Optics can offer a fully compatible, high-quality alternative to Fortinet FN-TRAN-QSFP-BIDI.

Carritech part number: CT-QSFP+SRBD

• 40Gbps QSFP+ Bi-Directional design with LC duplex.
• Supports 100 m (OM3) and 150 m (OM4).
• VCSEL transmitters at 850/900 nm.
• Hot-pluggable QSFP+ form factor (SFF-8436 compliant).
• Typical power consumption of 2.5 W.
• No need for MPO cabling—reuses duplex LC.
• Fully compliant with IEEE 802.3ba and 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 FN-TRAN-QSFP-BIDI, 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.