TP-LINK TL-SM311LM optical module LC multimode SFP dual fiber 2 port 1000Base-SX 550m

Brand: TP-LINK
Model: TL-SM311LM

Complies with IEEE 802.3z standard Gigabit multi-mode dual-fiber SFP optical transceiver module, LC interface Support full duplex mode Support hot swap, automatic identification of SFP optical module Can widely adapt to SFP interfaces of switches, routers, APs and other network equipment TL-SM311LM is a Gigabit SFP optical transceiver module. Selected high-quality optical devices with superior performance provide high-performance, low-cost solutions for the growing optical fiber transmission applications at home and abroad. TL-SM311LM uses standard Gigabit SFP interface, which is fully compatible with all brand network equipment on the market. TL-SM311LM complies with IEEE802.3z protocol, working wavelength is 850nm, plug and play without configuration. It can be widely adapted to SFP

Product Features


  • Complies with IEEE 802.3z standard
  • Gigabit multi-mode dual-fiber SFP optical transceiver module, LC interface
  • Support full duplex mode
  • Support hot swap, automatic identification of SFP optical module
  • Can widely adapt to SFP interfaces of switches, routers, APs and other network equipment

TL-SM311LM is a Gigabit SFP optical transceiver module. Selected high-quality optical devices with superior performance provide high-performance, low-cost solutions for the growing optical fiber transmission applications at home and abroad.

TL-SM311LM uses standard Gigabit SFP interface, which is fully compatible with all brand network equipment on the market.

TL-SM311LM complies with IEEE802.3z protocol, working wavelength is 850nm, plug and play without configuration. It can be widely adapted to SFP interfaces of switches, routers, APs and other network devices, supports hot swapping, simple installation, convenient management, and wide application scenarios.


Technical Specifications

Property DescriptionProperty Value
Supported protocols and standardsIEEE 802.3z 、CSMA/CD 、TCP/IP
Transmission medium50 / 125um or 62.5 / 125um multimode fiber
Maximum fiber length550m
transfer speed1.25Gbps
Port typeLC
Use wavelength850nm
powered by3.3V (power supply inside the switch)
Module useHousing operating temperature: 0°C ~ 70°C Storage temperature: -40°C ~ 85°C Operating humidity: 10% ~ 90%RH non-condensing Storage humidity: 5% ~ 90%RH non-condensing
Light parameterAverage transmit optical power: -9.5~-4dBm Receive sensitivity: -18dBm