Amazon.com: MOXA NPort 5110-1 Port Serial Device Server, 10/100 Ethernet, RS232, DB9 Male : Electronics
Moxa PT-508-MM-ST-48 IEC 61850-3 managed DIN-Rail Ethernet switch, with 6 10/100BaseT(X) ports, and 2 100BaseFX multi-mode ports with ST connectors, 1 isolated power supply (48 VDC), -40 to 85°C operating temperature