The RUGGEDCOM RSG2200NC is an industrially hardened. fully managed modular Gigabit Ethernet switch 56-bit Encryption up to 9-Gigabit Ethernet ports copper and/or fiber up to 9 100FX Fiber Fast Ethernet ports 2 port modules for tremendous flexibility multimode. singlemode Non-blocking. store and forward switching Long haul optics allow Gigabit distances up to 70km Multiple connector types (LC. SC.SFP. GBIC) (LC. SC. SFP. GBIC) HI = 88-300 VDC or 85-264 VAC. screw terminal block HI = 88-300 VDC or 85-264 VAC. screw terminal block RM = 19 Rack Mount Kit F= Ethernet on front LED panel on front power connector on rear XX = Manufacturing modification none FXA01 = 2x 100FX - multimode 1300nm. ST FXA01 = 2x 100FX - multimode 1300nm. ST FXA01 = 2x 100FX - multimode 1300nm. ST FXA01 = 2x 100FX - multimode 1300nm. ST XXXXX = none