DNP3 is a communications protocol for process automation systems in utilities. Primarily used in SCADA systems between master stations and RTUs/IEDs. Developed by GE-Harris Canada in 1993 based on IEC 60870-5
IEC 60870-5 defines transmission protocols for electrical substations. Edition 1 (1995) focuses on basic telecontrol tasks. Edition 2 (2000) adds TCP/IP layer for network access. Supports balanced and unbalanced point-to-point communication
19" Layer 2 rack switch with 10 Gbit/s uplinks and IEEE 1588 support. Field-modular design enables on-site modifications. Supports up to 24 modern IEDs via Fast Ethernet or Gigabit/s ports. Operates between -40°C to +85°C with fanless design
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