RUGGEDCOM RSG2300 is an industrially hardened, fully managed, modular Ethernet switch; 128-bit Encryption; 24 10/100TX copper ports Optional: up to 4 1000LX Gigabit Ethernet ports (copper and/or fiber) and up to 8 100FX Fiber Fast Ethernet ports; 2 port modules for tremendous flexibility; Non-blocking, store and forward switching; multimode, singlemode; Long haul optics allow distances up to 90km; Multiple connector types (ST, MTRJ, LC, SC) 24 = 24 VDC (12-36 VDC), screw terminal block 24 = 24 VDC (12-36 VDC), screw terminal block RM = 19" Rack Mount Kit F = Ethernet on front; LED panel on front; power connector on rear XX = Manufacturing modification: none FX06 = 2x 100FX - singlemode 1310nm, LC, 20km FX06 = 2x 100FX - singlemode 1310nm, LC, 20km FXA06 = 2x 100FX - singlemode 1310nm, LC, 20km FXA06 = 2x 100FX - singlemode 1310nm, LC, 20km