RUGGEDCOM RS8000T hardened, fully managed, Ethernet switches; 6 x 10/100BaseTX + 2 x 100BaseFX; 128-bit encryption; 48 = 48 VDC (36-59 VDC) No power module 2 UM = Unmanaged none XX = Manufacturing modification: none MM = 1300nm, MM, 2km via SFF MTRJ connectors