{"product_id":"abb-ntro12-a-analog-input-terminal-board","title":"ABB NTRO12-A Analog Input Terminal Board","description":"\u003cp\u003eThe \u003cstrong\u003eABB NTRO12-A\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eNTRO12\u003c\/strong\u003e Analog Input Terminal Board, operates as a dedicated hardware component for analog signal conditioning and termination within industrial control systems networks.\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\u003eNTRO12-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eABB \/ Bailey\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eU.S.A.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e200 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e140 mm x 60 mm x 20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Type\u003c\/td\u003e\n\u003ctd\u003eAnalog voltage or current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Range\u003c\/td\u003e\n\u003ctd\u003e-10 V to +10 V or 4 mA to 20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e2 MOhm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003eplus or minus 0.1% of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e16 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpdate Rate\u003c\/td\u003e\n\u003ctd\u003e250 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePolycarbonate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Options\u003c\/td\u003e\n\u003ctd\u003eDIN rail or panel mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Protection\u003c\/td\u003e\n\u003ctd\u003e2 kV between channels and ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEMI\/RFI Standards\u003c\/td\u003e\n\u003ctd\u003eIEC 61000-4-3 and IEC 61000-4-6\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 Performance\u003c\/h3\u003e\n\u003cp\u003eThe NTRO12-A utilizes a continuous 2 kV barrier between individual terminal paths and local grounding planes to maintain signal fidelity across its 12 measurement channels. This channel-to-channel isolation architecture suppresses differential voltage spikes and common-mode transients from altering the 16-bit analog-to-digital conversion path. It prevents parallel circuit ground loops during simultaneous 4-20 mA HART loop protocol routing and voltage sampling. The high input impedance of 2 MOhm prevents loading errors on standard transmitters, while the 250 ms internal update rate delivers structural data filtration matching the process timing demands of DCS architectures.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the channel-to-channel isolation architecture on the NTRO12-A impact field-side grounding loops?\u003c\/p\u003e\n\u003cp\u003eA: The 2 kV physical isolation barrier breaks potential electrical connections between separate input channels and the backplane chassis. This isolates localized field ground potential shifts and ensures that individual loop errors or shield anomalies do not migrate to adjacent processing channels.\u003c\/p\u003e\n\u003cp\u003eQ: Can the board accept simultaneous mixtures of voltage and current inputs without hardware damage?\u003c\/p\u003e\n\u003cp\u003eA: Yes. Individual channels can be configured to read separate ranges such as -10 V to +10 V or 4 mA to 20 mA based on terminal wiring layout and matching internal jumpers or DCS software parameters, provided that the physical signals stay within specified boundary limits.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Mounting Execution\u003c\/strong\u003e: Anchor the terminal board directly onto standard symmetrical DIN rails or a flat sub-panel enclosure plate. Ensure the polycarbonate housing latches lock onto the rail frame to mitigate ongoing mechanical shifts from field vibrations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Loop Termination\u003c\/strong\u003e: Terminate field transmitter lines directly onto the physical terminal strip. Strip signal wires back by approximately 6 mm and torque the clamping screws down securely to ensure stable physical electrical contact across all 12 channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Grounding and Isolation\u003c\/strong\u003e: Connect external analog input cable shields to a single, low-impedance master instrument ground point. Avoid terminating cable shields at multiple drop points to preserve the 2 kV isolation performance of the board assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply Connection\u003c\/strong\u003e: Route a clean, unshared 24 VDC feeder line to the main board power inputs. Separate all low-voltage analog cables from parallel running high-voltage AC electric motor or switchgear distribution lines to comply with IEC 61000-4-3 and IEC 61000-4-6 parameters.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":53098932601141,"sku":"NTRO12-A","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/NTRO12-A.png?v=1783327453","url":"https:\/\/www.5gplc.com\/products\/abb-ntro12-a-analog-input-terminal-board","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}