I/O Input/outputIEC International Electrotechnical CommissionIEC 60870-5-103 1. Communication standard for protective equipment2. A serial master/slave protocol for point-to-pointcommunicationIEC 61850 International standard for substation communicationand modelingIEC 61850-8-1 A communication protocol based on the IEC 61850standard seriesIEC 61850-9-2 A communication protocol based on the IEC 61850standard seriesIEC 61850-9-2 LE Lite Edition of IEC 61850-9-2 offering process businterfaceIED Intelligent electronic device (protection and controlrelay)IEEE 1588 v2 Standard for a Precision Clock SynchronizationProtocol for networked measurement and controlsystemsIEEE 1686 Standard for Substation Intelligent Electronic Devices'(IEDs') Cyber Security CapabilitiesIP address A set of four numbers between 0 and 255, separated byperiods. Each server connected to the Internet isassigned a unique IP address that specifies the locationfor the TCP/IP protocol.IRIG-B Inter-Range Instrumentation Group's time code formatBLAN Local area networkLC Connector type for glass fiber cable, IEC 61754-20LCD Liquid crystal displayLE Light EditionLED Light-emitting diodeLHMI Local human-machine interfaceMAC Media access controlMCB Miniature circuit breakerMMS 1. Manufacturing message specification2. Metering management systemModbus A serial communication protocol developed by theModicon company in 1979. Originally used forcommunication in PLCs and RTU devices.Section 6 1MRS756378 SGlossary394 REF615Application Manual