{"product_id":"4dp7apxad-911-honeywell-tdc-2000-analog-to-digital-converter-piu-circuit-board","title":"4DP7APXAD-911 Honeywell TDC 2000 Analog-to-Digital Converter PIU Circuit Board","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell 4DP7APXAD-911\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e4DP7APXAD-911\u003c\/strong\u003e Analog-to-Digital Converter PIU, operates as a dedicated hardware component for real-time field signal conversion and digitized process variable transmission within Honeywell TDC 2000 distributed control systems.\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\u003e4DP7APXAD-911 (4DP7APXAD911)\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\u003e500 g (1.54 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard TDC 2000 rack card footprint\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\u003eBackplane-supplied DC power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eAnalog-to-Digital Converter PIU Circuit Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Input Type\u003c\/td\u003e\n\u003ctd\u003eAnalog voltage or current (4-20 mA \/ 1-5 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Function\u003c\/td\u003e\n\u003ctd\u003eAnalog signal acquisition and ADC processing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003ePanel or rack mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eHoneywell TDC 2000 DCS\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 and Channel-to-Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe module incorporates robust channel-to-channel isolation networks designed to prevent field loop interference and ground potential differences from degrading signal resolution. Precision front-end analog-to-digital conversion circuitry conditions 4-20 mA current and voltage signals from temperature, pressure, and flow transmitters. The isolated conditioning stage decouples field sensor leads from backplane digital logic, suppressing common-mode electrical noise and preserving measurement accuracy across the TDC 2000 system bus.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What input signal ranges does the 4DP7APXAD-911 board accept from field transmitters?\u003c\/p\u003e\n\u003cp\u003eA: The board accepts standard industrial analog voltage and current inputs, such as 4-20 mA current loops and 1-5 VDC signals, converting them into digital values for DCS processing.\u003c\/p\u003e\n\u003cp\u003eQ: How is backplane power and electrical grounding established during module installation?\u003c\/p\u003e\n\u003cp\u003eA: Operating power is drawn directly through the rack backplane bus edge connector, while card cage guide rails and mounting screws provide mechanical grounding.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePower down the designated TDC 2000 Process Interface Unit (PIU) rack cage slot before attempting module insertion.\u003c\/li\u003e\n\u003cli\u003eAlign the board circuit edges with the upper and lower slot guides and push firmly until the backplane edge connector fully seats.\u003c\/li\u003e\n\u003cli\u003eTighten front panel retaining screws to secure mechanical grounding and prevent connection degradation under ambient vibration.\u003c\/li\u003e\n\u003cli\u003eVerify that field wiring shield drain wires are terminated at a single common earth ground terminal to prevent ground loop noise on incoming analog signals.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":67667001377077,"sku":"4DP7APXAD911","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/4DP7APXAD911.png?v=1791601924","url":"https:\/\/www.5gplc.com\/products\/4dp7apxad-911-honeywell-tdc-2000-analog-to-digital-converter-piu-circuit-board","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}