{"product_id":"ge-a02b-0218-b502-control-unit-chassis","title":"GE A02B-0218-B502 Control Unit Chassis","description":"\u003cp\u003eThe \u003cstrong\u003eGE Fanuc A02B-0218-B502\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eA02B-0218-B502\u003c\/strong\u003e Control Unit Chassis, operates as a dedicated hardware component for physical module housing and backplane interconnection within GE Fanuc Series 21-TB CNC platforms. Configured as a 2-slot rack enclosure weighing 1.13 kg (2.49 lbs), it provides the structural frame and bus interface channels required to seat CPU, power supply, or option cards controlling machine tool motion loops.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe catalog identifier indicates specific structural layout and system integration parameters for GE Fanuc CNC chassis hardware:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA02B\u003c\/strong\u003e: GE Fanuc mechanical housing and main control unit subrack prefix.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0218\u003c\/strong\u003e: Series 21 system platform generation index.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-B502\u003c\/strong\u003e: 2-slot rack physical frame configuration designator for Series 21-TB controllers.\u003c\/li\u003e\n\u003c\/ul\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\u003eA02B-0218-B502\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGE Fanuc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.13 kg (2.49 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Series 21 2-Slot Frame Dimensions\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 Frame Assembly (Power routed via installed power supply card)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot Configuration\u003c\/td\u003e\n\u003ctd\u003e2 Slots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003eOpen Subrack \/ Frame Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible System\u003c\/td\u003e\n\u003ctd\u003eGE Fanuc Series 21-TB CNC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication \u0026amp; Frame Architecture\u003c\/h3\u003e\n\u003cp\u003eThe two-slot internal bus structure maintains high backplane bus communication velocity across plugged control cards, minimizing propagation delay between CPU processing units and I\/O interface channels. Rigid ground-plane plating ensures electromagnetic shielding and stable low-impedance paths across the backplane traces. Physical connector guides preserve firmware flash compatibility and signal pin alignment during module insertion, sustaining deterministic real-time communication across Series 21-TB control loops.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the A02B-0218-B502 frame assembly include an integrated power supply card or CPU module?\u003c\/p\u003e\n\u003cp\u003eA: No. The A02B-0218-B502 is a \"Frame Only\" 2-slot chassis subrack. System cards, power supply units, and CPU modules must be installed into the slot positions separately.\u003c\/p\u003e\n\u003cp\u003eQ: How is chassis ground continuity maintained across installed modules?\u003c\/p\u003e\n\u003cp\u003eA: Internal card guide tracks and backplane mounting points feature conductive metal contact pads that link installed card ground planes directly to the main chassis earth point.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eTurn off main power to the CNC electrical cabinet prior to mounting or dismounting the control unit frame.\u003c\/li\u003e\n\u003cli\u003eSecure the 2-slot frame to the cabinet mounting plate using designated grounding screws to ensure continuous enclosure shield grounding.\u003c\/li\u003e\n\u003cli\u003eAlign internal circuit cards strictly along the top and bottom card guides before sliding them into backplane edge connectors.\u003c\/li\u003e\n\u003cli\u003eVerify that card retention latches or front panel locking screws are fully tightened to resist machine tool vibration.\u003c\/li\u003e\n\u003cli\u003eEnsure cabinet air ventilation clearances are maintained above and below the frame assembly to support passive thermal convection.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"GE","offers":[{"title":"Default Title","offer_id":48395071357043,"sku":"A02B-0218-B502","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/A02B-0222-B501_Cocoai_d01be42f-cd97-4d8f-b53f-fc1fec31c9ed.jpg?v=1790062797","url":"https:\/\/www.dcssupplier.com\/ar\/products\/ge-a02b-0218-b502-control-unit-chassis","provider":"DcsSupplier Limited","version":"1.0","type":"link"}