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The 1.25Gbps DWDM SFP Transceiver is a high-performance optical module designed for long-range data transmission over single-mode fiber (SMF) up to 80 kilometers. Encased in a hot-pluggable SFP form factor, it features a DWDM DFB laser transmitter and APD photodiode receiver for reliable and efficient performance. This transceiver supports data rates of up to 1.25Gbps, making it ideal for DWDM networks, SONET/SDH systems, Gigabit Ethernet, and Fiber Channel applications. It complies with SFP MSA and SFF-8472 standards, ensuring broad compatibility across networking equipment.
The module operates on a single +3.3V power supply and features a metal enclosure to minimize electromagnetic interference (EMI). It supports wavelengths on a 100GHz ITU Grid in the C Band, with wavelength precision maintained within ±0.1nm across varying life and temperature conditions. Digital diagnostic monitoring is included, providing real-time insights into parameters like transceiver temperature, laser bias current, optical power, and voltage levels. The transceiver’s operating temperature range of 0°C to +70°C ensures it performs reliably in commercial networking environments.
Optical performance is a key feature of this transceiver. It provides an average output power range of 0dBm to +4dBm and an extinction ratio of 8.2dB. The receiver offers high sensitivity, with a minimum input power of -26dBm and an overload threshold of -10dBm. It operates across an input wavelength range of 1270nm to 1610nm. The inclusion of Loss of Signal (LOS) functionality enables enhanced monitoring of link status, providing diagnostic insights for operational stability.
Electrically, the transceiver offers a differential input impedance of 100Ω and complies with IEEE 802.3z standards for transmitter output. It supports a 2-wire serial interface for accessing identification and diagnostic information. Advanced features like Transmit Disable and Transmit Fault provide enhanced control, allowing the host system to manage the module effectively.
In summary, the 1.25Gbps DWDM SFP Transceiver is a reliable and cost-effective solution for high-performance, long-distance optical communication. Its advanced optical and electrical capabilities, coupled with compliance to industry standards, make it a preferred choice for modern telecommunications and data networking infrastructures.
This DWDM SFP module supports 1.25 Gbps data rate transmission over 80 km of 9/125 µm single-mode fiber using a duplex LC connector. Operating on a single 3.3 V supply, it complies with SFP MSA and SFF-8472 standards, featuring real-time digital diagnostics for monitoring temperature, voltage, TX bias, TX power, and RX power. The unit ensures wavelength precision within ±0.1 nm on the 100 GHz ITU C-band grid. The case operating temperature range is 0 °C to +70 °C.
| Parameter | Value | Notes |
|---|---|---|
| Data rate | 1.25 Gbps (TX/RX) | Serial NRZ |
| Transmission distance | 80 km | 9/125 µm SMF |
| Wavelength | ITU-grid, C-band, 100 GHz spacing | ±0.1 nm stability |
| TX laser | DWDM DFB | — |
| TX output power | 0 to +4 dBm | — |
| Extinction ratio | ≥8.2 dB | — |
| SMSR | ≥30 dB | — |
| Spectral width | ≤0.3 nm (-20 dB) | — |
| RX type | APD | — |
| RX sensitivity | ≤-26 dBm | BER ≤1×10⁻¹², 1550 nm, ER = 9 dB, PRBS 2²³-1 |
| RX overload | -10 dBm | — |
| LOS assert/de-assert | -27 dBm / -38 dBm; hysteresis 0.5–6 dB | Logic 0 = normal |
| Eye mask | IEEE 802.3z compliant | — |
| Parameter | Value | Notes |
|---|---|---|
| Supply voltage | 3.13–3.47 V (nom. 3.3 V) | — |
| Total module current | 300 mA (TX+RX) | Excludes termination |
| Power supply noise | ≤100 mVp-p (100 Hz–1 MHz) | — |
| Case temperature | 0 °C to +70 °C | Operating |
| Connector | Duplex LC | — |
| Form factor | Hot-pluggable SFP, metal housing | Lower EMI |
| Diagnostics | SFF-8472 DDM (Temp, Vcc, TxBias, TxPower, RxPower) | I²C access A0h/A2h |
| Control/Status | Tx Disable, Tx Fault, LOS | — |
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.
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.
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:
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.
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.
At Carritech Optics, every product we supply undergoes a meticulous testing process designed to guarantee exceptional quality, reliability, and consistency. Our manufacturer operates within a professional laboratory environment, where advanced testing equipment and industry-standard procedures are used to carefully evaluate each item.
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.
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