Single-mode, MiniGBICLC interface. Up to 10km distance. Supports Full-Duplex. Plug-and-Play. LED indicators show the operation state of the fiber module. Applied to TL-SG3109/3216/3224, TL-SL3428/3452, TL-SG2109WEB/2216WEB/2224WEB, TL-SL2210WEB/2218WEB/2428WEB/2452WEB, TL-SL1351.