TP-Link's 1000Base-BX Bi-Directional WDM SFP Module is a highly advanced transmitter and receiver designed for use in industrial networks. With a maximum data transmission rate of 1.25 Gbps, this module enables efficient and reliable data transmission over long distances. It uses Wavelength Division Multiplexing (WDM) technology to enable bidirectional communication over a single optical fiber, thus increasing network efficiency and capacity. The module is suitable for use in challenging environments and offers a maximum transmission range of up to 20 kilometers. Its compact design and easy integration into existing systems make it an ideal choice for network administrators seeking a powerful and flexible solution. - Maximum data transmission rate of 1.25 Gbps - Bi-directional communication over a single optical fiber - Maximum transmission range of up to 20 km - Compatible with SFP interfaces - FCC and CE certified.