Moxa's Layer 2 managed switches feature industrial-grade reliability, network redundancy, and security features based on the IEC 62443 standard. We offer toughened, industry-specific products with multiple industry certifications, such as parts of the EN 50155 standard for rail applications, IEC 61850-3 for power automation systems, and NEMA TS2 for intelligent transportation systems.IEC 61850-3, IEEE 1613 (power substations) compliantIEC 62439-3 Clause 4 (PRP) and Clause 5 (HSR) compliantPRP/HSR Coupling and QuadBox functions supportedEthernet console reserved for local accessBuilt-in MMS server based on IEC 61850-90-4 switch data modeling for power SCADAHardware-based IEEE 1588v2 PTP supportedDesign ready for NERC CIP compliant system developmentIsolated redundant power inputs with universal 24 VDC, 48 VDC, or 110/220 VDC/VAC power supply range-40 to 85°C operating temperature range PT-G503-PHR-PTP-HVPT-G503 Series IEC 61850-3 and IEC 62439-3 full Gigabit managed redundancy box, with 3 10/100/1000BaseT(X) ports or 100/1000Base SFP ports, 1 10/100/1000BaseT(X) Ethernet console port, 1 isolated dual power supply (88 to 300 VDC or 85 to 264 VAC), -40 to 85°C operating temperature Ethernet Interface Combo Ports (10/100/1000BaseT(X) or 100/1000BaseSFP+) 3 Console Port Ethernet console (10/100/1000Mbps RJ45) Standards IEEE 802.3 for 10BaseT IEEE 802.3ab for 1000BaseT(X) IEEE 802.3u for 100BaseT(X) and 100BaseFX IEEE 802.3z for 1000BaseSX/LX/LHX/ZX Ethernet Software Features Filter Static Multicast Management Back Pressure Flow Control, BOOTP, DHCP Client, Fiber check, Flow control, HTTP, IPv4/IPv6, LLDP, Port Mirror, RARP, RMON, SMTP, SNMP Inform, SNMPv1/v2c/v3, Syslog, Telnet Power Substation MMS Redundancy Protocols HSR, PRP, RSTP grouping Security HTTPS/SSL, TACACS+, RADIUS, SSH, Trust access control Time Management NTP Server/Client, SNTP, IEEE 1588v2 PTP (hardware-based) MIB IEC 62439-3 MIB USB Interface Storage Port USB Type A Serial Interface Console Port USB-serial console (Type B connector) Input/Output Interface Alarm Contact Channels Resistive load: 1 A @ 24 VDC Digital Inputs +13 to +30 V for state 1 -30 to +3 V for state 0 Max. input current: 8 mA Power Parameters Input Voltage Redundant dual inputs, 110/220 VAC/VDC (85 to 264 VAC, 88 to 300 VDC)