RG-NIS-GE-SFP-20KM-SM1310-BIDI is a Small Form-Factor Pluggable (SFP) transceiver module designed for long-range optical connections. With a 20 km reach over single-mode fiber at a wavelength of 1310nm, this bidirectional (BIDI) SFP module is ideal for applications where both transmit and receive functions occur on a single fiber, reducing the need for additional cabling. It supports hot swapping, allowing you to insert or replace the module without powering down the device. This module connects your Ethernet interface to an optical network, providing reliable and high-performance network connectivity. The SFP module functions as a mini Gigabit Interface Converter (GBIC), offering a flexible and cost-effective solution for network expansion.