{"product_id":"900r12-0300-honeywell-hc900-series-12-slot-i-o-racks","title":"900R12-0300 Honeywell HC900 Series 12-Slot I\/O Racks","description":"\u003ch2\u003eHoneywell 900R12-0300 HC900 Series 12-Slot Controller Rack\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eHoneywell 900R12-0300\u003c\/strong\u003e serves as the primary \u003cstrong\u003e900R12\u003c\/strong\u003e 12-slot I\/O Rack utilized to execute backplane bus communication velocity and power distribution across Honeywell HC900 and ControlEdge HC900 platforms. The passive structural chassis manages parallel logic traces and high-density voltage distribution lines, enabling real-time data exchange between mounted peripheral modules and the central processing architecture.\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\u003e900R12-0300 (also designated as 900R12R-0300)\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\u003e4-5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e137 x 72.6 x 151 mm per slot dimension profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive chassis backplane assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Slots\u003c\/td\u003e\n\u003ctd\u003e12 active I\/O slots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Modules\u003c\/td\u003e\n\u003ctd\u003eAnalog I\/O, Digital I\/O, Communication modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply Compatibility\u003c\/td\u003e\n\u003ctd\u003eHoneywell 900P01-0501, 900P02-0201 power modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eStandard rack-mount installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity Range\u003c\/td\u003e\n\u003ctd\u003e5% - 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCE, UL, CSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication Velocity and Density Scaling\u003c\/h3\u003e\n\u003cp\u003eThe chassis incorporates an integrated multi-layer copper backplane bus that maintains deterministic communication execution times across all 12 expansion slots. The hardware plane isolates low-level signal paths from high-current power distribution traces, preventing electromagnetic cross-talk during concurrent digital switching and analog sampling routines. The high pin-density connector sockets support continuous hot-swap insertion, clamping voltage sag during live module installation to protect system availability.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the 900R12-0300 chassis manage power distribution to individual I\/O modules?\u003c\/p\u003e\n\u003cp\u003eA: The integrated backplane connects directly to compatible Honeywell 900P01-0501 or 900P02-0201 power modules, splitting the regulated low-voltage rails evenly across all 12 peripheral slots.\u003c\/p\u003e\n\u003cp\u003eQ: What are the functional restrictions regarding hot-swapping modules in this rack?\u003c\/p\u003e\n\u003cp\u003eA: The backplane pins feature staggered physical lengths to ensure ground contacts engage first and break last, allowing engineers to replace analog, digital, or communication cards while the rack remains under electrical load.\u003c\/p\u003e\n\u003cp\u003eQ: Is special slot allocation required when mixing digital and analog modules?\u003c\/p\u003e\n\u003cp\u003eA: No, the universal routing design of the backplane communication bus permits arbitrary placement of any certified Honeywell HC900 series module within any of the 12 available slots.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eGrounding Execution: Secure a dedicated, low-impedance copper grounding strap from the rack chassis ground terminal directly to the enclosure master instrument ground bar to maximize common-mode noise rejection.\u003c\/li\u003e\n\u003cli\u003eHeat Dissipation: Allow a minimum of 50 mm clearance space above, below, and on the sides of the rack assembly within the cabinet to maintain natural convection airflow and prevent thermal concentration.\u003c\/li\u003e\n\u003cli\u003eModule Seating Alignment: Align the module housings strictly with the physical guide tracks before applying linear force to engage the backplane pins, and tighten all mechanical retention screws to lock the cards in place.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":43869059317859,"sku":"900R12-0300","price":320.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/386_4256d564-8b77-426e-a2cb-4962684299b9.jpg?v=1764743168","url":"https:\/\/www.autocontrolglobal.com\/products\/900r12-0300-honeywell-hc900-series-12-slot-i-o-racks","provider":"AutoControl Global","version":"1.0","type":"link"}