The RUGGEDCOM RX1512series is a utility gradelayer 2 and layer 3switch and routerin a compact form factor.1x Fixed 10-72VDCpower supplyField replaceable line modulesUp to 12 10/100BaseTx,Up to 8 Gigabit PortsUp to 12 100BaseFx PortsUp to 8ports 10FL/100SXSC, ST, LC and MTRJPluggable Optics (SFP)Up to 4 T1/E1 portscellular (EVDO / HSPA), DDS(56K Master/Slave, 64K Slave)Up to 24 RS232/422/485DC =10-72 VDC,screw terminal blockNo power supply 200 =No Mounting OptionL2 =Layer 2 SwitchXX =Manufacturing modification none