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The MikroTik HS-31DLC20D is an SFP transceiver that offers throughput of up to 2.5 Gb/s, unlike standard 1 Gb/s modules. It is designed for MikroTik devices whose SFP interfaces also support 2.5 Gb/s bandwidth. Transmission is carried out over single-mode (SM) fiber, with a maximum link distance of up to 20 km. Two optical fibers are required to establish the connection, and the module is equipped with LC/UPC connectors. Data transmission operates at a wavelength of 1310 nm.
2.5 Gb/s SFP Module
The offered product is an SFP transceiver that supports throughput of up to 2.5 Gb/s, unlike most modules that support 1 Gb/s. It has been designed for use in MikroTik devices equipped with 2.5 Gb/s SFP ports.


Single-Mode Fiber, Up to 20 km Range
The module is compatible with single-mode fiber and operates at a wavelength of 1310 nm. The maximum link distance is up to 20 km. The transmitter output power ranges from -5 to 0 dBm, while the receiver sensitivity is -20 dBm.
LC/UPC Connectors
The module is equipped with two (duplex) LC/UPC connectors.


Duplex Module
A duplex fiber optic connection requires two optical fibers. The module is equipped with two connectors: one designated for Tx (transmission) and the other for Rx (reception).
Specifications
| MikroTik HS-31DLC20D | |
| Format | SFP |
| Connector | LC/UPC Duplex |
| Mode | Singlemode |
| Data Rate | 1 / 2.5 Gb/s |
| Wavelength | 1310 nm |
| Distance | Up to 20 km |
| Electrical characteristics | |
|---|---|
| Receiver differential output voltage | 300 - 600 mVpp |
| LOS output Voltage-High | Vcc- 0.5 ~ Vcc |
| LOS output Voltage-Low | Vee ~ Vee+0.5 |
| Optical characteristics | |
| Output powe | -5 ~ 0 dBm |
| Receiver sensitivity (OMA) | -20 dBm |
| LOS-Deasserted |
-21 dBm |
| LOS-Asserted | -35 dBm |
| LOS-Hysteresis | 0.5 ~ 5 dB |





