{"product_id":"900r04-0200-honeywell-hc900-4-slot-i-o-rack","title":"900R04-0200 Honeywell HC900 4-Slot I\/O Rack","description":"\u003cp\u003eConfigured for physical module holding and backplane bus signal distribution in Honeywell ControlEdge HC900 systems, the \u003cstrong\u003eHoneywell 900R04-0200\u003c\/strong\u003e (\u003cstrong\u003e900R04\u003c\/strong\u003e I\/O Rack) provides direct physical\/electrical execution.\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\u003e900R04-0200\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\u003e3.63 kg (8.00 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard 4-slot HC900 rack enclosure footprint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C (Storage: -40 to 85 deg C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eBackplane power distributed from HC900 power supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot Capacity\u003c\/td\u003e\n\u003ctd\u003e4 I\/O module slots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Bus\u003c\/td\u003e\n\u003ctd\u003eHigh-speed inter-module communication bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003ePanel mount \/ DIN-rail installation options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003ePLCs\/Machine Control \/ PLC Module\/Rack\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 \u0026amp; DCS System Integration\u003c\/h3\u003e\n\u003cp\u003eThe 900R04-0200 rack housing provides electrical power rail distribution and high-speed data bus connectivity across 4 I\/O module slots. Built to interface with discrete and analog field modules processing 4-20 mA HART loop protocol instruments, the backplane architecture incorporates ground isolation planes to maintain signal integrity. Channel-to-channel isolation on installed I\/O cards prevents noise coupling across adjacent slots during high-density process execution.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 900R04-0200 rack supply field power directly to connected I\/O cards?\u003c\/p\u003e\n\u003cp\u003eA: No, the rack backplane routes logic power from the central HC900 power supply module, while field-side loop power must be wired directly to the respective I\/O terminal blocks.\u003c\/p\u003e\n\u003cp\u003eQ: Can I replace an I\/O card in one of the 4 slots while the system remains powered?\u003c\/p\u003e\n\u003cp\u003eA: Hot-swapping depends on the controller platform operating configuration; module insertion or removal under power must follow HC900 system rules to prevent backplane bus communication faults.\u003c\/p\u003e\n\u003cp\u003eQ: How is chassis grounding established across all 4 module slots?\u003c\/p\u003e\n\u003cp\u003eA: Grounding is maintained via integrated backplane grounding connections and heavy-duty frame contact tabs that bond each installed module to the main rack ground terminal.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMount the rack chassis securely to an earthed metal enclosure panel using standard mounting hardware to ensure low-impedance grounding.\u003c\/li\u003e\n\u003cli\u003eMaintain adequate vertical clearance above and below the rack for unhindered convection cooling airflow.\u003c\/li\u003e\n\u003cli\u003eRoute field wiring trunks away from the backplane region to prevent high-voltage AC cables from inducing noise into low-level digital\/analog signal lines.\u003c\/li\u003e\n\u003cli\u003eVerify that the system power supply and ground bonds are correctly terminated before inserting I\/O modules into any of the 4 rack slots.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":53525829583157,"sku":"900R04-0200","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/900R04-0200_Cocoai.png?v=1789009922","url":"https:\/\/www.5gplc.com\/products\/900r04-0200-honeywell-hc900-4-slot-i-o-rack","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}