D25User's Manual GE Grid Solutions14 994-0081-3.00-21 GE InformationProduct OverviewWhat is theD25?The D25 is a standalone intelligent electronic device that can operate as:• Programmable logic controller (PLC)• Substation LAN node• IED gateway• Bay level controller• Power quality monitor• Fault/event (waveform) recorderIt is suitable for various power system applications, including:• Substation monitoring• Control• Automation applicationsMain Featuresand OptionsThe multi-processor design allows many functional options:• Expansion cards• Configurable digital inputs, digital outputs, AC and DC analog inputs• LCD and Graphics Display front panelsCommunication plug-in options:• LAN: connection to iSCS Ethernet LAN with fiber optic, twisted pair or coaxial• Serial: user selectable from RS-232 or RS-485FunctionalOverviewDigitalOutputsAnalogProcessor.....FutureEthernet LANRS-232/485MeteringPower QualityLogicLinxDigital Fault RecordingSubstation Monitoring &DiagnosticsDigital InputsAC/DC AnalogInputsIED 2IED 1 UTCWESMAINTAuxiliaryOutputsCommunicationsOptionsInpu/OutputOptionsDirect CTand PTTrip/CloseRaise/LowerCOSSOEACC