Description
The MikroTik S-31DLC20D SFP (1.25G) module is a reliable and high-performance transceiver designed for long-distance single-mode fiber connections. It features a Dual LC UPC connector and operates at a 1310nm wavelength, making it capable of supporting data transmission over distances of up to 20 kilometers. With a data rate of 1.25G, this module is well-suited for stable and efficient fiber networking.
Moreover, the S-31DLC20D comes with Digital Diagnostic Monitoring (DDM), which allows users to monitor real-time operating parameters such as temperature, supply voltage, and optical power. As a result, you can enjoy better control and improved reliability in your network.
This SFP module works smoothly with many MikroTik devices such as RB260GS, RB2011LS, RB2011LS-IN, RB2011UAS-IN, RB2011UAS-RM, RB2011UAS-2HnD, RB2011UAS-2HnD-IN, and CCR1036-12G-4S. It also, works with most non-MikroTik SFP devices. Thus, giving you more flexibility and makes it easy to add to your existing network.
Key Features
1.25G SFP transceiver with Dual LC UPC connector
Up to 20KM single-mode fiber connections
Operates at 1310nm wavelength for reliable transmission
Digital Diagnostic Monitoring (DDM) support
Wide compatibility with MikroTik and non-MikroTik devices
Durable build for -40°C to +70°C temperature range
MikroTik S-31DLC20D SFP– High-Speed Fiber Solutions
For flexible deployment, some models are sold separately, while others are available as a complete kit for 20 km links. Therefore, you have the freedom to easily expand an existing network or quickly build a full setup from scratch.
S-85DLC05D – 1.25G SFP with an 850nm Dual LC connector. Supports up to 550m Multi-Mode fiber and includes DDMI monitoring.
S-31DLC20D – 1.25G SFP with a 1310nm Dual LC connector. Works with 20KM Single-Mode fiber and supports DDMI.
S-35/53LC20D Kit – a pair of 1.25G Single-Mode SFP modules with single LC connectors. They support 20KM links with T1310nm/R1550nm and T1550nm/R1310nm, both with DDMI.
S+85DLC03D & S+31DLC10D – advanced SFP+ modules for 10G networks, delivering high speed at an affordable price.

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