{"product_id":"ge-multilin-d25-substation-controller","title":"GE Multilin D25 Substation Controller","description":"\u003ch2\u003eGE Multilin D25 Substation Controller\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGE Multilin D25\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eD25\u003c\/strong\u003e Substation Automation Controller, operates as a dedicated hardware component for data concentration, automation logic execution, and electrical monitoring within substation control network platforms.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eD25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGE Multilin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e19-inch rack-mount modular industrial chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDevice Classification\u003c\/td\u003e\n\u003ctd\u003eSubstation Automation Controller \/ Multi-Function IED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessor \u0026amp; OS\u003c\/td\u003e\n\u003ctd\u003e32-bit RISC architecture with QNX real-time operating system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Memory\u003c\/td\u003e\n\u003ctd\u003e64 MB DRAM, 32 MB Flash Memory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Inputs\u003c\/td\u003e\n\u003ctd\u003eUp to 128 configurable status inputs with wetting voltage selection and chatter filtering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Outputs\u003c\/td\u003e\n\u003ctd\u003eUp to 64 control outputs including trip\/close control pairs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Analog Inputs\u003c\/td\u003e\n\u003ctd\u003eUp to 32 inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Outputs\u003c\/td\u003e\n\u003ctd\u003eUp to 16 outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Measurement Inputs\u003c\/td\u003e\n\u003ctd\u003eDirect 1 A or 5 A CT inputs and VT inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Ports\u003c\/td\u003e\n\u003ctd\u003eDual redundant Ethernet 10\/100 Mbps, RS-232\/RS-485 serial, fiber optic interfaces, modem options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Protocols\u003c\/td\u003e\n\u003ctd\u003eIEC 61850 GOOSE and Server, DNP3, Modbus RTU\/TCP, IEC 60870-5-101\/103\/104, SPABus, Courier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFault Recording\u003c\/td\u003e\n\u003ctd\u003eUp to 16 MB local storage, waveform records in COMTRADE format\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTime Synchronization\u003c\/td\u003e\n\u003ctd\u003eIRIG-B, SNTP\/NTP over Ethernet, protocol-based synchronization\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay Options\u003c\/td\u003e\n\u003ctd\u003eOptional Data Display Panel (DDP) or Graphical Display Panel (GDP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEthernet Communication and Firmware Flash Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe GE Multilin D25 uses modular industrial communication resources for substation data exchange, including dual redundant Ethernet interfaces and serial communication channels. The controller supports firmware storage through internal flash memory and maintains compatibility with configured application functions, communication drivers, and LogicLinx soft logic execution environments. Network configuration includes protocol handling for IEC 61850 messaging, DNP3, and Modbus communication between field devices, protection relays, and SCADA systems.\u003c\/p\u003e\n\u003cp\u003eThe D25 supports deterministic data transfer behavior through configured communication paths, allowing status acquisition, control commands, and event records to be processed within defined substation automation architectures. Firmware management requires compatibility verification between installed hardware configuration, application software, and communication modules.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: Does the D25 support hot-swap replacement of internal modules?\u003cbr\u003eA: The D25 is a modular rack-mounted controller. Hot-swap capability depends on the installed hardware configuration and module type. Replacement procedures must follow the applicable GE Multilin service documentation.\u003c\/p\u003e\n\u003cp\u003eQ: What type of fault records can the D25 store?\u003cbr\u003eA: The D25 stores digital fault records with waveform oscillography in COMTRADE format and sequence-of-events information for substation analysis.\u003c\/p\u003e\n\u003cp\u003eQ: How does the D25 synchronize time for event recording?\u003cbr\u003eA: The controller supports IRIG-B input, SNTP\/NTP over Ethernet, and protocol-based time synchronization methods for event timestamp alignment.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the D25 in a suitable 19-inch rack enclosure with appropriate mechanical support and ventilation clearance according to the equipment installation requirements.\u003c\/p\u003e\n\u003cp\u003eUse shielded communication cables for serial and Ethernet-connected field devices where required by the site grounding practice. Terminate cable shields according to the substation grounding design to reduce electromagnetic interference.\u003c\/p\u003e\n\u003cp\u003eSeparate low-level analog signal wiring from high-current power conductors and switching circuits. Verify CT and VT wiring polarity, terminal assignment, and insulation conditions before energizing measurement circuits.\u003c\/p\u003e\n\u003cp\u003eConfirm communication addressing, protocol parameters, and time synchronization settings before connecting the controller to the station network. Validate digital input states and output control circuits during commissioning using approved test procedures.\u003c\/p\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":44503343267928,"sku":"D25","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/D25.jpg?v=1785922973","url":"https:\/\/www.industriaxplc.com\/id\/products\/ge-multilin-d25-substation-controller","provider":"IndustriaX Limited","version":"1.0","type":"link"}