{"product_id":"niai04-infi-90-net-90-abb-analog-input-termination-unit","title":"NIAI04 Infi 90 Net 90 ABB Analog Input Termination Unit","description":"\u003cp\u003eConfigured for analog signal processing and field termination tasks in Infi 90 \/ Net 90 (BAINET) control platforms, the \u003cstrong\u003eABB NIAI04\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eNIAI04\u003c\/strong\u003e Analog Input Termination Unit, provides direct physical\/electrical execution. It serves as the physical interface layer for incoming field sensor instrumentation, routing multi-channel analog inputs directly to designated controller modules within the rack subrack assembly.\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\u003eNIAI04\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eAnalog Input Termination Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003eInfi 90 \/ Net 90 (BAINET)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.20 lbs (Standard Industrial Assembly)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Infi 90 Termination Unit Form Factor\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\u003ePassive \/ System Backplane Powered\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Channels\u003c\/td\u003e\n\u003ctd\u003eMulti-channel Analog Input Termination\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus \u0026amp; I\/O Isolation Profiles\u003c\/h3\u003e\n\u003cp\u003eThe ABB NIAI04 Analog Input Termination Unit utilizes channel-to-channel isolation topology integrated with the standard Infi 90 backplane bus interface. To prevent ground loop current generation across high-density field wiring networks, the unit provides galvanic separation between individual analog signal paths and backplane logic ground. Standard 4-20 mA loop protocols and millivolt-level field sensor signals pass through internal filter networks, minimizing high-frequency electromagnetic interference before routing to processing modules across the BAINET bus structures.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the NIAI04 termination unit be serviced without interrupting power to the associated process control node?\u003c\/p\u003e\n\u003cp\u003eA: Physical field termination wiring on the NIAI04 can remain connected during logic module maintenance, but signal loop integrity must be verified before disconnecting field leads to prevent unintended channel floating or open-circuit fault conditions on active control loops.\u003c\/p\u003e\n\u003cp\u003eQ: What grounding procedure is required for shielded analog field cables connected to the NIAI04?\u003c\/p\u003e\n\u003cp\u003eA: Cable drain wires and shields must be grounded at a single common point on the termination assembly chassis ground bar to prevent circulating ground currents from introducing noise into 4-20 mA measurement loops.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eEnsure all upstream field power sources and associated Infi 90 rack chassis power supplies are de-energized or isolated prior to mounting the termination unit.\u003c\/li\u003e\n\u003cli\u003eMount the NIAI04 securely onto the designated subrack or mounting rail position using standard panel hardware.\u003c\/li\u003e\n\u003cli\u003eTerminate incoming field wiring to the designated terminal blocks, ensuring proper polarity for active 4-20 mA loops and millivolt sensor inputs.\u003c\/li\u003e\n\u003cli\u003eVerify field cable drain shields are connected to the designated chassis ground lug at one end only to prevent ground loop interference.\u003c\/li\u003e\n\u003cli\u003ePerform a point-to-point continuity test across all signal paths and confirm minimum 5-thread engagement on all mechanical terminal screws before energizing the system.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":53411470082357,"sku":"NIAI04","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/NIAI04.png?v=1787817878","url":"https:\/\/www.5gplc.com\/products\/niai04-infi-90-net-90-abb-analog-input-termination-unit","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}