The RUGGEDCOM RX1512 series is a utility grade layer 2 and layer 3 switch and router in a compact form factor. 1 x Fixed 10-72VDC Power Supply Field replaceable line modules Up to 12 10/100BaseTx. Up to 8 Gigabit Ports Up to 12 100BaseFx Ports Up to 8 ports 10FL / 100SX SC. ST. LC and MTRJ Pluggable Optics (SFP) Up to4 T1/E1 ports Cellular (EVDO / HSPA)* DDS (56K Master/Slave. 64K Slave) Up to 24 RS232/422/485 DC = 10-72VDC. screw terminal block no Power Supply 2 DPV = DIN and Panel Mount Kit L3 = Layer 3 Switch XX = Manufacturing modification none L3SECL3HW = Layer 3 Security Edition (with L3 HW) TC2 = 2x T1/E1 RJ48 (Channelized/Unchannelized) S01 = 6x RS232/RS422/RS485 RJ45 Serial Line Module