{"product_id":"nx-ad2608-omron-analog-input-unit-nx-i-o-bus","title":"NX-AD2608 Omron Analog Input Unit NX I\/O Bus","description":"\u003cp\u003eThe \u003cstrong\u003eOmron NX-AD2608\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eNX-AD2\u003c\/strong\u003e Analog Input Unit, operates as a dedicated hardware component for high-speed differential voltage signal acquisition within NX Series bus systems.\u003c\/p\u003e\n\u003ch3\u003eModel Nomenclature \u0026amp; Option Designation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNX\u003c\/strong\u003e: Architecture platform for modular bus I\/O systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAD\u003c\/strong\u003e: Functional designation for Analog Input conversion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2\u003c\/strong\u003e: Circuit point density representing 2 input channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6\u003c\/strong\u003e: Voltage measurement signal range configured for -10 to +10 V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e08\u003c\/strong\u003e: Hardware specification variant defining 1\/30000 resolution and 10 us\/point conversion velocity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOperating Parameters \u0026amp; Technical Data\u003c\/h3\u003e\n\u003cfigure\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\u003eNX-AD2608\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eOmron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.07 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e12 mm x 100 mm x 71 mm (W x H x D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e1.35 W max. (CPU\/Communication Control Unit), 1.05 W max. (Coupler Unit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Range\u003c\/td\u003e\n\u003ctd\u003e-10 to +10 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e2 differential points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e1\/30000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Speed\u003c\/td\u003e\n\u003ctd\u003e10 us\/point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAbsolute Maximum Rating\u003c\/td\u003e\n\u003ctd\u003e+\/-15 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e1 Mohm min.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Accuracy\u003c\/td\u003e\n\u003ctd\u003e+\/-0.1% full scale (25 deg C), +\/-0.2% full scale (0 to 55 deg C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Architecture\u003c\/td\u003e\n\u003ctd\u003eTransformer (Power), Digital Isolator (Signal) between input and NX bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003e20 Mohm min. at 100 VDC between isolated circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Strength\u003c\/td\u003e\n\u003ctd\u003e510 VAC for 1 minute at 5 mA max. leakage current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Connectivity\u003c\/td\u003e\n\u003ctd\u003eScrewless clamping terminal block (8 terminals)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDeterministic Network Bus Sync\u003c\/h3\u003e\n\u003cp\u003eThe module operates across deterministic networks with synchronous I\/O refreshing and Free-Run refreshing modes. Backplane bus communication velocity handles high-bandwidth data transfers, maintaining high I\/O density scaling efficiency and firmware flash compatibility across standard NX bus couplers.\u003c\/p\u003e\n\u003ch3\u003eStandard Package Deliverables\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Omron NX-AD2608 Voltage Analog Input Module\u003c\/li\u003e\n\u003cli\u003e1 x 8-Pin Screwless Clamping Terminal Block\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Wiring \u0026amp; Shielding Rules\u003c\/h3\u003e\n\u003ch4\u003eTerminal Connection Assembly\u003c\/h4\u003e\n\u003cp\u003ePush stripped wire ends or ferrule crimps directly into the 8-point screwless clamping terminal block. Ensure full seating inside the spring clamp without exposed conductor strands.\u003c\/p\u003e\n\u003ch4\u003eShielding \u0026amp; Grounding Setup\u003c\/h4\u003e\n\u003cp\u003eRoute analog signal cables separately from high-voltage motor wires. Connect cable shielding directly to designated functional ground points to prevent electromagnetic interference from distorting high-resolution measurements.\u003c\/p\u003e\n\u003ch4\u003eDifferential Input Isolation\u003c\/h4\u003e\n\u003cp\u003eConnect external voltage source leads across differential signal terminals. Note that while input circuits are galvanically isolated from the internal NX bus, no channel-to-channel isolation exists between individual inputs.\u003c\/p\u003e\n\u003ch3\u003eTechnical Questions \u0026amp; Answers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the conversion speed and resolution of the NX-AD2608?\u003c\/p\u003e\n\u003cp\u003eThe module provides a conversion speed of 10 us\/point combined with a overall internal resolution rating of 1\/30000.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow are the input channels electrically isolated from the backplane?\u003c\/p\u003e\n\u003cp\u003eIsolation between input circuits and the NX bus uses power transformers and digital isolators, though inputs share a common ground without channel-to-channel isolation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat power consumption draw does the module require from the bus?\u003c\/p\u003e\n\u003cp\u003ePower draw is rated at 1.35 W maximum when connected to a CPU Unit, or 1.05 W maximum when attached to a Communications Coupler Unit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat voltage limits can the input terminals tolerate without hardware failure?\u003c\/p\u003e\n\u003cp\u003eThe module features an absolute maximum input voltage rating of +\/-15 V across its differential input terminals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhich I\/O refreshing methods are supported by this hardware?\u003c\/p\u003e\n\u003cp\u003eThe module supports switching between synchronous I\/O refreshing and Free-Run refreshing modes depending on controller configuration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the overall measurement accuracy across the operating thermal range?\u003c\/p\u003e\n\u003cp\u003eOverall accuracy is rated at +\/-0.1% of full scale at 25 deg C, and +\/-0.2% of full scale across the full 0 to 55 deg C operating range.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes the module draw electrical current from the external I\/O power supply?\u003c\/p\u003e\n\u003cp\u003eNo, the unit operates without external I\/O power supply terminals and draws zero current from the I\/O power line.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat type of wiring connection interface is provided on the module face?\u003c\/p\u003e\n\u003cp\u003eField wiring connects through a removable 8-terminal screwless clamping terminal block using direct push-in technology.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":47306676994221,"sku":"NX-AD2608","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/NX-AD2608_3.jpg?v=1790216693","url":"https:\/\/www.maxwellplc.com\/ga\/products\/nx-ad2608-omron-analog-input-unit-nx-i-o-bus","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}