#html-body [data-pb-style=T1FRL2V]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}TP-Link | TL-SM321B | 1000Base-BX WDM Bi-Directional SFP Module | LC connectorEnhance your network efficiency and extend its reach with the TP-Link TL-SM321B 1000Base-BX WDM Bi-Directional SFP Module. Designed for optimal performance, this module allows for high-speed data transmission over single-mode fiber, with a reach of up to 20km. It is perfect for connecting switches, routers, and servers, ensuring a stable and fast gigabit fiber connection. The TL-SM321B features a bi-directional LC optical interface, supporting both transmission and reception on a single fiber strand, which significantly reduces the cost and complexity of network deployments.   The TL-SM321B adopts the latest 1000Base-BX standard, making it highly compatible with existing network devices and infrastructure. It supports Digital Diagnostic Monitoring (DDM), allowing real-time monitoring of key transceiver parameters such as optical power, temperature, and supply voltage. This ensures the network operates efficiently and helps in proactive maintenance. With its hot-swappable design, the TL-SM321B can be installed and replaced without interrupting the network, providing flexibility and ease of maintenance.   Ideal for both small and medium-sized business environments, the TL-SM321B ensures reliable and high-performance connectivity. By supporting long-distance, high-speed transmission, and advanced diagnostic features, this module meets the demands of modern network infrastructures, providing a robust solution for network expansion and optimization.FEATURES Adopts the latest 1000Base-BX standard Supports up to 20km transmission distance on single-mode fiber Compatible with Small Form Pluggable Multi-Source Agreement (SFP-MSA) Supports Digital Diagnostic Monitoring (DDM) Hot-swappable for easy installation and maintenance Integrated LC Bi-Directional optical interface connector Ensures reliable gigabit fiber connection Ideal for use with switches, routers, and servers Provides real-time monitoring of transceiver parameters Enhances network performance and reliability SPECIFICATIONS Port Type: LC Simplex Fiber Type: Single-mode Fiber (9/125μm) Data Rate: 1.25Gbps Wave Length: Tx: 1310nm RX: 1550nm Max. Cable Length: 20km Standards and Protocols: IEEE 802.3z, TCP/IP Power Support: 3.3V Operating Temperature: 0˚C to 70˚C Storage Temperature: -40˚C to 85˚C Safety & Emission: FCC, CE CONTENTS SFP Module TL-SM321B Installation Guide WARRANTY3-Year Manufacturer's Warranty