{"product_id":"chassis-module-mounting-unit-abb-iemmu22-infi-90","title":"Chassis Module Mounting Unit | ABB IEMMU22 Infi 90","description":"\u003ch2\u003eABB IEMMU22 Module Mounting Unit\u003c\/h2\u003e\n\u003cp\u003eConfigured for direct physical\/electrical execution in ABB Bailey Infi 90 networks, the \u003cstrong\u003eABB IEMMU22\u003c\/strong\u003e (\u003cstrong\u003eIEMMU22\u003c\/strong\u003e Module Mounting Unit) provides mechanical chassis housing and backplane power distribution across process automation systems. The hardware assembly routes high-speed Controlway and I\/O Expander Bus signals directly between installed control processors, communication adapters, and field interface cards.\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\u003eIEMMU22\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\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4.1 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e48.3 cm x 17.8 cm x 17.8 cm\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\u003ePassive Backplane (+5 VDC, +\/-15 VDC distribution)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eModule Mounting Unit (MMU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot Capacity\u003c\/td\u003e\n\u003ctd\u003e22 module slots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Bus Types\u003c\/td\u003e\n\u003ctd\u003eControlway, I\/O Expander Bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eStandard 19-inch rack enclosure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eInfi 90 \/ Net 90 DCS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Architecture \u0026amp; Slot Expansion\u003c\/h3\u003e\n\u003cp\u003eEngineered for integration into distributed control systems, the IEMMU22 chassis contains a heavy-duty backplane PCB handling high-speed bus communication velocity. The backplane traces isolate Controlway system communications from internal I\/O expansion signals, eliminating data collisions during high-density I\/O scan routines. Built-in power distribution planes carry stable +5 VDC and +\/-15 VDC supply rails across all 22 slots, while rigid card guides maintain firmware flash compatibility and physical pin alignment during hot-swapping or card replacement procedures.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the IEMMU22 chassis handle internal module cooling under full load conditions?\u003c\/p\u003e\n\u003cp\u003eA: The physical structure relies on open vertical airflow paths for passive convection cooling. For high-density module configurations drawing maximum backplane power, external fan assemblies can be mounted directly above or below the 19-inch rack frame.\u003c\/p\u003e\n\u003cp\u003eQ: What electrical power rails are distributed across the backplane slots of the IEMMU22?\u003c\/p\u003e\n\u003cp\u003eA: The integrated backplane routes primary +5 VDC logic power alongside +\/-15 VDC analog bias voltages from central system power modules directly to individual card edge connectors.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the IEMMU22 frame directly into a standard 19-inch instrument enclosure, using four M6 mounting screws to fix the front mounting ears to the rack vertical rails. Verify that cabinet grounding straps connect the steel chassis to the main equipment ground busbar to establish an effective Faraday shield and eliminate stray ground loops. When inserting functional processor or I\/O cards, align the module circuit boards with the upper and lower guide channels before pushing the module fully home to mate with the rear backplane connectors. Ensure all external power supply feeds and system cables maintain a minimum physical clearance of 30 cm from high-voltage AC lines.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":52953227788600,"sku":"IEMMU22","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/582.jpg?v=1789356430","url":"https:\/\/www.automodulexpert.com\/products\/chassis-module-mounting-unit-abb-iemmu22-infi-90","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}