IOLAN SDS8C DHV Electric Utility Terminal Server: 8 x RJ45 serial ports, dual 10/100/1000Base-T Ethernet, 1U rack mount, Dual Universal High Voltage AC/DC power, Software selectable RS232/422/485 interface, Cisco Rj45 pinout, Advanced Features for NERC-CIP compliance, Meets IEC 61850-3, IEEE 1613 electric power substation environmental standard.