... UpgradeTFTP/FTPConfiguration Upload/downloadTFTP/FTPOrder InformationBDCOM S2228PoEManaged, stackable Ethernet switch with 24 10/100M Fast Ethernet ports, 4 * 1000M TX/SFP combo ... mode, 10 km, 1310 nmGSFP-LX-401-port 1000BaseLX SFP module, single-mode, 40 km, 1310 nmGSFP-ZX-801-port ... 1000BaseLX SFP module, single-mode, 80 km, 1550 nmThe functions and corresponding ...