RUGGEDCOM RS900 is a 9-port industrially hardened. fully managed Ethernet switch 128-bit Encryption Up to 9 Ports 6 Base 10/100Bas ports with option for 3 additio Fiber or Copper ports Industry standard fiber optical connectors LC. SC. ST.MTRJ Multimode and Singlemode optical transceivers Long haul optics allow distances up to 90km 24 = 24 VDC (10-36 VDC) XX = No power supply 2 D = DIN Rail Mounting xx = none XX = none C2-C2 = 2 x 100FX - Singlemode 1310nm. SC connector. Standard 20km TX = 1x 10/100TX