The TL-SM311 series Fiber Module Cards are introduced for extending transfer distance attached to our managedweb smart switches They can extend the distance to several kilometers even tens of kilometers which can basically satisfy the distance requirement of LAN Users can choose whether & which items to use the fiber modules according to the demand in order to lower cost Support full-duplex Plug-&-play LED indicators show the operation state of the fiber module Power internal power from switches Supports Pull-or-Plug with power on switches Max Cable Length 550m Suitable Switches TL-SG310932163224 TL-SL34283452 TL-SG2109WEB2216WEB2224WEB TL-SL2210WEB2218WEB2428WEB2452WEB TL-SL1351 & the coming gigabit switches Cabling Type Multi-mode Fiber Certifications FCC CE Data Link Protocol Fibre Channel Data Rate 1250 Gbps Ethernet Standards IEEE 8023z Fibre Port 50125µm or 625125µm Multi-mode Form Factor SFPMini-GBIC Full Duplex Capabilities Half or Full Model Name TL-SM311LM Number of Ports 2 port (s) Operating Humidity 10 to 90 Operating Temperature 0 to 70 °C Pack Quantity 1 Port Connector LC Product Type Transceiver Protocols Supported CSMACD TCPIP Warranty Five years Wavelength 850 nm