{"product_id":"ge-ds3800humb1b1b-universal-memory-board","title":"GE DS3800HUMB1B1B Universal Memory Board","description":"\u003cp\u003eThe GE DS3800HUMB1B1B is a Universal Memory Board associated with the Mark IV Speedtronic turbine control system. The board contains multiple erasable programmable read-only memory (EPROM) devices, 30 jumpers, one reset toggle switch, and one red LED indicator. Its modular connector and retention levers support installation within the intended hardware assembly.\u003c\/p\u003e\n\u003ch3\u003eFunctional Role and Board Layout\u003c\/h3\u003e\n\u003cp\u003eThe DS3800HUMB1B1B is identified as a Group 1, normal-assembly board within the Mark IV series. Its memory-related hardware is based on multiple EPROM devices, while the onboard jumpers provide configurable hardware links. The available documentation does not specify the individual jumper assignments or the memory capacity of the installed devices.\u003c\/p\u003e\n\u003cp\u003eThe board has a modular connector at one end and retention levers at the other. One reset toggle switch and one red LED are also present. The LED's exact diagnostic meaning and the reset switch's effect on the host system are not established by the supplied information.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure\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\u003eDS3800HUMB1B1B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGeneral Electric (GE)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eMark IV Speedtronic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eUniversal Memory Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunctional Acronym\u003c\/td\u003e\n\u003ctd\u003eHUMB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMark IV Series Grouping\u003c\/td\u003e\n\u003ctd\u003eGroup 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAssembly Type\u003c\/td\u003e\n\u003ctd\u003eNormal Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Devices\u003c\/td\u003e\n\u003ctd\u003eMultiple EPROM modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJumper Count\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReset Switch\u003c\/td\u003e\n\u003ctd\u003e1 toggle switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLED Indicators\u003c\/td\u003e\n\u003ctd\u003e1 red LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoard Connection\u003c\/td\u003e\n\u003ctd\u003eModular connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRetention Hardware\u003c\/td\u003e\n\u003ctd\u003eRetention levers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConfiguration and Maintenance Considerations\u003c\/h3\u003e\n\u003cp\u003eThe 30 jumpers are hardware configuration points, but their individual assignments and required positions are not documented in the supplied specifications. During maintenance, record the existing jumper arrangement before changing any settings, and verify the required configuration against documentation for the installed Mark IV system.\u003c\/p\u003e\n\u003cp\u003eThe exact memory capacity, EPROM device types, LED operating states, and reset behavior remain unconfirmed for the complete DS3800HUMB1B1B ordering number. These details should be verified before attempting memory replacement, board reconfiguration, or fault diagnosis.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What identifies the GE DS3800HUMB1B1B Universal Memory Board?\u003c\/p\u003e\n\u003cp\u003eA: The complete model number is DS3800HUMB1B1B. The supplied identification data specifies the HUMB functional acronym, Mark IV Speedtronic series, Group 1 classification, and normal assembly type.\u003c\/p\u003e\n\u003cp\u003eQ: How many jumpers and indicator LEDs does this board have?\u003c\/p\u003e\n\u003cp\u003eA: The board has 30 jumpers and one red LED indicator. The exact jumper functions and LED status definitions require model-specific technical documentation.\u003c\/p\u003e\n\u003cp\u003eQ: Can the DS3800HUMB1B1B be replaced with another DS3800HUMB variant?\u003c\/p\u003e\n\u003cp\u003eA: Do not assume direct interchangeability from a shared HUMB prefix. Verify the complete part number, board revision, memory configuration, connector arrangement, and system requirements before selecting a replacement.\u003c\/p\u003e","brand":"GE Fanuc","offers":[{"title":"Default Title","offer_id":67818535583834,"sku":"DS3800HUMB1B1B","price":159.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/DS3800HUMB1B1B2.jpg?v=1792735327","url":"https:\/\/www.plcmasters.com\/products\/ge-ds3800humb1b1b-universal-memory-board","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}