{"product_id":"honeywell-51401570-100-pwb-keyboard-interface-board","title":"Honeywell 51401570-100 PWB Keyboard Interface Board","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell 51401570-100\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e51400972-100\u003c\/strong\u003e PWB Keyboard Interface Board, operates as a dedicated hardware component for key-matrix decoding and operator station input processing within TDC 3000 console terminals.\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\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003e51401570-100\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\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.74 lbs (0.79 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard operator console PWB form factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e5 VDC internal bus supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e51401570-100 (Replaces 51400972-100)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLayout Compatibility\u003c\/td\u003e\n\u003ctd\u003eABCDE and QWERTY key matrices\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Isolation \u0026amp; Console Signal Integration\u003c\/h3\u003e\n\u003cp\u003eThe printed wiring board converts physical key closures into deterministic binary scan codes for the main operator station processor. Built-in signal suppression circuits prevent keystroke chatter and electrical noise from interfering with nearby 4-20 mA HART loop diagnostic buses or analog console displays. Optocoupled control pathways isolate key-matrix scan loops from central chassis ground reference planes, protecting signal integrity during continuous operation.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Is the 51401570-100 backwards compatible with older 51400972-100 board revisions?\u003c\/p\u003e\n\u003cp\u003eA: Yes, part number 51401570-100 serves as a direct form, fit, and functional replacement for former part number 51400972-100 across both ABCDE and QWERTY operator keyboards.\u003c\/p\u003e\n\u003cp\u003eQ: Can this interface board be hot-swapped while the operator station is fully powered?\u003c\/p\u003e\n\u003cp\u003eA: Hot-swapping is not recommended; power to the operator keyboard housing or node chassis should be isolated before unseating or inserting signal ribbon cables.\u003c\/p\u003e\n\u003cp\u003eQ: How does the board interface handle simultaneous key presses?\u003c\/p\u003e\n\u003cp\u003eA: The onboard scanning logic executes hardware anti-ghosting and debouncing protocols to correctly register individual keystrokes without transmission errors.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDisconnect main power to the operator console enclosure before servicing internal circuit boards.\u003c\/li\u003e\n\u003cli\u003eUtilize a grounded wrist strap attached to chassis earth ground to prevent electrostatic discharge (ESD) during handling.\u003c\/li\u003e\n\u003cli\u003eAlign the PWB mounting holes with the standoffs inside the keyboard assembly and tighten retaining hardware evenly.\u003c\/li\u003e\n\u003cli\u003eCarefully seat all multi-pin ribbon cables onto the board connectors, verifying proper pin-1 alignment and clip engagement.\u003c\/li\u003e\n\u003cli\u003eRestore system power and execute standard operator key-matrix diagnostic tests to verify functional registration across all keys.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":53616095428917,"sku":"51401570-100","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/51401570-100_Cocoai.png?v=1789888961","url":"https:\/\/www.5gplc.com\/products\/honeywell-51401570-100-pwb-keyboard-interface-board","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}