MikroTik XS+31LC20D SFP SFP+ SFP28 optical module SM 20km 1310nm

MikroTik XS+31LC20D — Optical Module for High-Speed ​​Transmission

Do you need a reliable, low-power module for long-distance data transmission? The MikroTik XS+31LC20D is a high-performance optical module that supports 1G, 10G, and 25G speeds and enables transmission up to 20 km over single-mode fiber. With an operating temperature range of -40 to +70°C, it is ideal for demanding outdoor and industrial applications. This module offers an excellent price-to-performance ratio and serves as the direct successor to the XS+31LC10D model, offering double the range.

Broad Compatibility and Easy Installation

The MikroTik XS+31LC20D is compatible with standard SFP, SFP+, and SFP28 formats, ensuring easy integration into your existing infrastructure. The Dual LC UPC connector ensures simple connection to the optical network. Support for single-mode fiber (SMF) enables efficient long-distance data transmission, making it ideal for ISPs, data centers, and industrial applications.

Energy Efficiency and Robust Performance

The module's maximum power consumption is only 1 W, minimizing energy usage across the entire network solution. A transmit power of -3 to +2 dBm and a receiver sensitivity (OMA) of up to -14 dBm ensure reliable data transmission even under adverse conditions. The module also features Loss of Signal (LOS) signaling via LVTTL logic, allowing for rapid identification of network issues. ### Technical Specifications

• Format: SFP / SFP+ / SFP28
• Connector: Dual LC UPC
• Transmission Medium: Single-mode fiber (SMF)
• Speeds: 1G / 10G / 25G
• Reach: Up to 20 km
• Wavelength: 1310 nm
• Transmit Power: -3 to +2 dBm
• Receiver Sensitivity (OMA): Max. -14 dBm
• LOS-Deasserted: Max. -15 dBm
• LOS-Asserted: Min. -30 dBm
• LOS Hysteresis: 0.5 to 5 dB
• Receiver Differential Output Voltage: 340 to 800 mVpp
• Operating Temperature: -40 to +70 °C
• Maximum Power Consumption: 1 W

Loss of Signal (LOS) Signaling

The module uses LVTTL logic to indicate the optical reception status. Logic level 0 signals normal operation, while logic level 1 indicates a loss of signal. The LOS-Deasserted threshold is -15 dBm, the LOS-Asserted threshold is -30 dBm, and the hysteresis ranges from 0.5 to 5 dB. This function is crucial for maintaining stable network operation.

Testing and Accuracy

Receiver sensitivity was tested using the PRBS 2^31-1 test pattern at a speed of 25.78G and a BER of 5E-5. Optical performance has been verified for transmission over single-mode fiber (SMF), ensuring reliability and precision in demanding conditions.

The MikroTik XS+31LC20D is the perfect choice for those seeking high performance, energy efficiency, and reliability in a single device.