{"product_id":"honeywell-900rr0-0200-redundant-controller-rack","title":"Honeywell 900RR0-0200 Redundant Controller Rack","description":"\u003ch2\u003eHoneywell 900RR0-0200 Redundant Controller Rack\u003c\/h2\u003e\n\u003cp\u003eConfigured for redundant CPM mounting in HC900 controller networks, the \u003cstrong\u003eHoneywell 900RR0-0200\u003c\/strong\u003e (\u003cstrong\u003e900RR0-0200\u003c\/strong\u003e rack assembly) provides direct mechanical and backplane engagement for dual‑processor 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\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e900RR0-0200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e1751 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e137 mm H x 261.6 mm W x 151.7 mm D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eCore Performance Indicators\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eRedundant CPM rack assembly for HC900 backplane connectivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol Behavior\u003c\/h3\u003e\n\u003cp\u003eAlthough the 900RR0-0200 is a mechanical rack assembly, its backplane routing supports stable operation of CPM modules handling 4-20 mA HART loop channels. The rack’s connector geometry maintains channel-to-channel isolation, preventing impedance drift that could distort analog loop readings. HART burst packets are passed through the CPM module’s interface without cross-talk, and cold junction compensation (CJC) routines—when present in associated analog modules—are processed without interference from adjacent slots.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can CPM modules be hot-swapped while installed in the 900RR0-0200 rack?\u003c\/strong\u003e A: CPM modules may be removed with power applied, but the rack itself does not add hot-swap circuitry. System impact depends on the redundancy configuration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the rack contribute active current load to the HC900 power system?\u003c\/strong\u003e A: The rack does not draw active current. It distributes regulated DC supplied by the HC900 power module, with total load determined by installed CPM and I\/O modules.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does redundancy switchover occur when using this rack?\u003c\/strong\u003e A: Switchover timing is governed by CPM firmware. The rack provides the physical dual-slot arrangement and backplane signal paths required for redundant operation.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMount the rack on a rigid panel surface to prevent vibration-induced connector wear.\u003c\/li\u003e\n\u003cli\u003eEnsure proper grounding by bonding the rack frame to the cabinet grounding bar.\u003c\/li\u003e\n\u003cli\u003eMaintain separation between analog and digital wiring to reduce noise coupling into CPM channels.\u003c\/li\u003e\n\u003cli\u003eVerify full seating of backplane connectors before applying power to avoid intermittent CPM communication.\u003c\/li\u003e\n\u003cli\u003eAllow clearance for module removal and avoid cable strain that may obstruct CPM extraction.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":48177693524158,"sku":"900RR0-0200","price":620.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/900R12-0101_2.jpg?v=1782372232","url":"https:\/\/www.autooiltech.com\/products\/honeywell-900rr0-0200-redundant-controller-rack","provider":"AutoOilTech Limited","version":"1.0","type":"link"}