The TP-Link Omada SM311LS (also known as TL-SM311LS) is a high-performance 1000Base-LX single-mode fiber optic (SMF) Mini GBIC (SFP) module, designed to extend Gigabit Ethernet connections up to 20 km. It operates on 9/125 μm fiber optic cables and supports an impressive data rate of 1.25 Gbps through the LC Duplex port.

• Standards and Protocols: IEEE 802.3z, CSMA/CD, TCP/IP.
• Wavelength: 1310 nm.
• Fiber Type: 9/125 μm single-mode fiber (SMF).
• Maximum Cable Length: 20 km.
• Data Rate: 1.25 Gbps (Gigabit Ethernet, 1000Base-LX).
• Port Type: LC Duplex (LC/UPC).

Hardware Features: Equipped with digital diagnostic monitoring (DDM), SFP-MSA compliance, and supports hot-pluggable/hot-swappable operation, ensuring efficient and seamless integration into existing networks.

Operating and Storage Environment: The module operates efficiently in a temperature range of 0–70 °C and can be stored under harsh conditions -40–85 °C. It retains its functionality in 10–90% RH, non-condensing.