{"product_id":"general-electric-ds3800hmpj1a1d-mark-iv-microprocessor-board","title":"General Electric DS3800HMPJ1A1D Mark IV Microprocessor Board","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eGeneral Electric DS3800HMPJ1A1D\u003c\/strong\u003e is a microprocessor printed circuit board designated under the functional acronym \u003cstrong\u003eHMPJ\u003c\/strong\u003e and classified as a Group 1 assembly within the \u003cstrong\u003eMark IV\u003c\/strong\u003e Speedtronic turbine control system series. The board is engineered for execution within triple modular redundant (TMR) turbine control architectures, which feature duplicated processors voting on inputs to maximize operational uptime and control integrity for industrial gas and steam turbines.\u003c\/p\u003e\n\u003cp\u003eThe physical construction features a base circuit board without a standard metal installation faceplate, instead using two retention clips mounted on the right-hand edge to secure the module within a standard \u003cstrong\u003eMark IV\u003c\/strong\u003e VME rack installation assembly. Interfacing is facilitated via a backplane connector on one short edge and a cable connector on the opposite short edge. A vertical pin connector positioned near four surface-mounted standoffs enables connection to a secondary daughterboard. The board integrates over fifty integrated circuits, including multiple PROMs\/EPROMs, two diagnostic LEDs, resistor network arrays, diodes, capacitors, test points, and configurable jumper switches. Factory-drilled mounting holes surrounded by insulating rings prevent surface voltage transference and electrostatic discharge.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMR Architecture Integration\u003c\/strong\u003e: Operates within triple modular redundant control schemes with voter logic to eliminate single points of failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Connector Configuration\u003c\/strong\u003e: Designed with a backplane edge connector and a secondary cable connector for system and module-level communication.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaughterboard Support\u003c\/strong\u003e: Features a vertical pin connector alongside four surface standoffs to support modular expansion via an add-on daughterboard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVME Rack Retention\u003c\/strong\u003e: Utilizes two dedicated retention clips on the right side for direct installation into standard VME rack frames.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulated Mounting Protection\u003c\/strong\u003e: Incorporates factory-drilled mounting holes ringed with insulating material to safeguard against electrostatic discharge and stray surface voltages.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOn-Board Diagnostics and Configuration\u003c\/strong\u003e: Equipped with two status LEDs (one yellow, one red), accessible test points, and configurable hardware jumper switches.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePrimary computing and logic execution in General Electric \u003cstrong\u003eMark IV\u003c\/strong\u003e Speedtronic turbine control systems.\u003c\/li\u003e\n\u003cli\u003eManagement and control processing for industrial gas turbine installations.\u003c\/li\u003e\n\u003cli\u003eControl architecture processing for industrial steam turbines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGeneral Electric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMark IV Speedtronic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFunctional Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDS3800HMPJ1A1D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFunctional Acronym\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHMPJ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMark IV Grouping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGroup 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAssembly Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNormal Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer Location\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSalem, Virginia, USA (Domestic)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntegrated Circuits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50+ ICs including PROMs\/EPROMs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOn-Board Indicators\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 LEDs (1 Yellow, 1 Red)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePassive\/Active Components\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eResistor network arrays, resistors, diodes, capacitors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHardware Hardware Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJumper switches, test points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMechanical Connectors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Backplane connector, 1 cable connector, 1 vertical pin connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBoard Mounting Features\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 Daughterboard standoffs, 2 VME retention clips, insulated mounting holes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMatch all configurable jumper switch positions on the replacement board directly to the settings of the existing board prior to installation.\u003c\/li\u003e\n\u003cli\u003eUtilize the two right-hand retention clips to securely seat and lock the PCB inside the \u003cstrong\u003eMark IV\u003c\/strong\u003e standard VME rack frame.\u003c\/li\u003e\n\u003cli\u003eEnsure proper alignment of the backplane connector and cable connector on the opposing short edges during board insertion.\u003c\/li\u003e\n\u003cli\u003eWhen installing a secondary daughterboard, align the board over the four surface standoffs and mate it firmly with the vertical pin connector.\u003c\/li\u003e\n\u003cli\u003eVerify that hardware mounting screws engage through the insulated ringed holes to maintain electrical isolation from surface voltages.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":53667875651947,"sku":"DS3800HMPJ1A1D","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/DS3800HMPJ1A1D_002_1200x1200_5684b04b-d1d6-45dd-97c0-e7dc0c13701a.jpg?v=1785938445","url":"https:\/\/www.plcprotech.com\/products\/general-electric-ds3800hmpj1a1d-mark-iv-microprocessor-board","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}