The 100Gbps QSFP28 ER4 Optical Transceiver is a high-performance module engineered for long-range data transmission over single-mode fiber (SMF), supporting distances of up to 30 kilometers without Forward Error Correction (FEC) and 40 kilometers with FEC. Operating with a 4-channel architecture, the transceiver multiplexes four lanes of 25Gbps LAN-WDM optical signals for a total aggregate bandwidth of 100Gbps. The transmitter utilizes cooled EA-DFB lasers for precise wavelength alignment, while the receiver employs APD detectors for high sensitivity. Fully compliant with Ethernet 100GBASE-ER4 standards, IEEE 802.3ba, and QSFP28 MSA specifications, it is ideal for applications in data center interconnects, telecom connections, and 100G Ethernet.
This transceiver operates on a single +3.3V power supply, consuming a maximum of 4.5W, and offers digital diagnostic monitoring for real-time insights into temperature, voltage, bias current, and optical power. Designed for commercial environments, it functions reliably within a temperature range of 0°C to 70°C. Featuring a hot-pluggable QSFP28 form factor and a duplex LC optical interface, the module ensures easy integration and maintenance. Its compliance with RoHS standards and Class 1 laser safety regulations further highlights its environmentally friendly and safe design, making it a reliable choice for high-speed, long-distance networking solutions.
The CT-QSFP28-ER4 is a 100GBASE-ER4 optical transceiver designed for long-range Ethernet and telecom applications. It converts four lanes of 25 Gb/s electrical data into four LAN-WDM optical channels (1295–1310 nm), multiplexed onto a single fiber. On the receive side, APD-based ROSA ensures high sensitivity for long-distance links. The module supports 30 km reach without FEC and 40 km with FEC, uses a duplex LC connector, and operates from a single +3.3 V supply with a maximum power draw of 4.5 W. Built-in DDM/DOM allows monitoring of key parameters including temperature, voltage, optical power, and bias current.
Form factor / standards: QSFP28 MSA; 100GBASE-ER4 compliant.
Data rate: 103.1 Gb/s aggregate (4×25.78125 Gb/s).
Reach: Up to 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; 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 bias, power, voltage, and temperature.
Compliance: RoHS-6; Laser Class 1 (EN 60825-1:2014; 21 CFR 1040.10/1040.11).
| Parameter | Value |
|---|---|
| Average launch power (each lane) | 0 to +4 dBm |
| Total average launch power | ≤ +10.5 dBm |
| Extinction ratio | ≥ 7 dB |
| TDP (per lane) | ≤ 2.5 dB |
| Receiver sensitivity (OMA, BER = 1×10⁻¹²) | ≤ −14.65 dBm |
| Receiver sensitivity (OMA, BER = 5×10⁻⁵) | ≤ −19 dBm |
| Receiver damage threshold | ≥ −3 dBm |
| LOS assert / de-assert | −26 / −24 dBm |
| SMSR | ≥ 30 dB |
At Carritech, we pride ourselves on our exceptional service and commitment to meeting our customers’ needs. Our extensive range of SFP transceivers 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.
Chez Carritech Optics, nous sommes convaincus de la qualité et de la fiabilité de nos émetteurs-récepteurs optiques. C'est pourquoi nous sommes fiers d'offrir une garantie à vie sur tous nos produits, ce qui témoigne de notre engagement en faveur de l'excellence et de la satisfaction de nos clients.
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Carritech’s Opticode is an advanced transceiver programming solution that gives you complete flexibility across your optical network. Designed to ensure seamless compatibility with a wide range of OEM systems, Opticode allows you to quickly reconfigure transceivers to meet your specific requirements. The result is greater control, reduced costs, and a more adaptable, future-proof infrastructure.
Intuitive interface allows you to reprogram transceivers quickly, without complex processes or specialist training.
Reprogram transceivers to work reliably across a wide range of OEM systems.
Gain the flexibility to adapt, optimise, and scale your optical infrastructure with confidence.
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