The GTM1110S1 Gigabit Ethernet media converter is a standalone box that supports two types of media. The RJ-45 port supports 10/100/1000Base-T full or half duplex modes. The SFP port supports 1000Mb/s Ethernet operation using duplex, simplex, CWDM, or DWDM SFP modules. The converter is designed with a switch controller and buffer memory for smooth and consistent operation.