{"product_id":"honeywell-51196694-928-u1-trackball-upgrade-board","title":"Honeywell 51196694-928\/U1 Trackball Upgrade Board","description":"\u003ch2\u003eHoneywell 51196694-928\/U1 Trackball Upgrade Board\u003c\/h2\u003e\n\u003cp\u003eConfigured for cursor control and legacy interface adaptation in Honeywell operator stations, the \u003cstrong\u003eHoneywell 51196694-928\/U1\u003c\/strong\u003e (\u003cstrong\u003e51196694-928\u003c\/strong\u003e Trackball Upgrade Board) provides direct physical and electrical signal processing via a standard PS\/2 connection layout.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e51196694-928\/U1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eControl-room environmental standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eLow-voltage operator station bus supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Type\u003c\/td\u003e\n\u003ctd\u003ePS\/2 cursor-control protocol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCircuit Board\u003c\/td\u003e\n\u003ctd\u003eIndustrial-grade PCB with multi-pin connector interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol \u0026amp; DCS Integration\u003c\/h3\u003e\n\u003cp\u003eWhile this specific hardware board processes dedicated low-voltage cursor signals rather than field-level 4-20 mA loops, it maintains complete physical compatibility with Honeywell distributed control system (DCS) operator terminals. The board utilizes channel-to-channel isolation principles to suppress electrical noise and transient interference within the console enclosure. Integration into control rooms requires proper grounding of the interface wiring to prevent ground loops and maintain stable cursor positioning across operator interfaces.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 51196694-928\/U1 support hot-swapping within active operator stations?\u003c\/p\u003e\n\u003cp\u003eA: No. Power must be isolated from the operator station subassembly prior to installing or removing the trackball upgrade board to prevent logic-level voltage spikes and bus corruption.\u003c\/p\u003e\n\u003cp\u003eQ: What signal conversion mechanism is utilized on the PCB?\u003c\/p\u003e\n\u003cp\u003eA: The board processes raw mechanical trackball quadrature or displacement inputs and converts them directly into standard PS\/2 protocol data packets for system communication.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure all power feeds to the target operator console are locked out before opening the trackball assembly housing.\u003c\/li\u003e\n\u003cli\u003eMount the industrial-grade PCB securely using the designated mounting standoffs inside the trackball enclosure.\u003c\/li\u003e\n\u003cli\u003eVerify that the PS\/2 interface cable is routed away from high-voltage AC power lines and electromagnetic interference (EMI) sources.\u003c\/li\u003e\n\u003cli\u003eInspect pin alignment on multi-pin connectors prior to final physical seating to avoid bent contacts.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":67900349579560,"sku":"51196694-928\/U1","price":315.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0827\/6266\/2184\/files\/51196694-928_Cocoai.png?v=1792049734","url":"https:\/\/www.powerdcs.com\/products\/honeywell-51196694-928-u1-trackball-upgrade-board","provider":"Power DCS Parts Limited","version":"1.0","type":"link"}