{"product_id":"fanuc-from-sram-module-for-16i-18i-21i-a20b-3900-0180-copy-1","title":"Fanuc DRAM module for 16i\/ 18i\/ 21i A20B-3900-0042","description":"\u003cp data-start=\"0\" data-end=\"138\"\u003e\u003cstrong data-start=\"0\" data-end=\"18\"\u003eA20B-3900-0042\u003c\/strong\u003e is a \u003cstrong data-start=\"24\" data-end=\"55\"\u003eprinted circuit board (PCB)\u003c\/strong\u003e used in CNC control systems manufactured by \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eFANUC\u003c\/span\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003chr data-start=\"140\" data-end=\"143\"\u003e\n\u003ch3 data-start=\"145\" data-end=\"169\"\u003e📌 Basic Information\u003c\/h3\u003e\n\u003cul data-start=\"170\" data-end=\"429\"\u003e\n\u003cli data-start=\"170\" data-end=\"209\"\u003e\n\u003cp data-start=\"172\" data-end=\"209\"\u003e\u003cstrong data-start=\"172\" data-end=\"188\"\u003ePart Number:\u003c\/strong\u003e \u003cstrong data-start=\"189\" data-end=\"207\"\u003eA20B-3900-0042\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"210\" data-end=\"255\"\u003e\n\u003cp data-start=\"212\" data-end=\"255\"\u003e\u003cstrong data-start=\"212\" data-end=\"221\"\u003eType:\u003c\/strong\u003e \u003cstrong data-start=\"222\" data-end=\"253\"\u003ePrinted Circuit Board (PCB)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"256\" data-end=\"303\"\u003e\n\u003cp data-start=\"258\" data-end=\"303\"\u003e\u003cstrong data-start=\"258\" data-end=\"271\"\u003eCategory:\u003c\/strong\u003e \u003cstrong data-start=\"272\" data-end=\"301\"\u003eControl \/ Interface Board\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"304\" data-end=\"429\"\u003e\n\u003cp data-start=\"306\" data-end=\"429\"\u003e\u003cstrong data-start=\"306\" data-end=\"318\"\u003eUsed In:\u003c\/strong\u003e FANUC CNC controllers (commonly \u003cstrong data-start=\"351\" data-end=\"388\"\u003eSeries 0i \/ 16i \/ 18i \/ 21i \/ 30i\u003c\/strong\u003e, depending on the machine configuration)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"431\" data-end=\"434\"\u003e\n\u003ch3 data-start=\"436\" data-end=\"457\"\u003e⚙️ Main Functions\u003c\/h3\u003e\n\u003cp data-start=\"458\" data-end=\"578\"\u003eThe \u003cstrong data-start=\"462\" data-end=\"480\"\u003eA20B-3900-0042\u003c\/strong\u003e board is used for \u003cstrong data-start=\"499\" data-end=\"577\"\u003einternal communication and signal processing within the CNC control system\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"580\" data-end=\"606\"\u003eTypical functions include:\u003c\/p\u003e\n\u003cul data-start=\"608\" data-end=\"775\"\u003e\n\u003cli data-start=\"608\" data-end=\"640\"\u003e\n\u003cp data-start=\"610\" data-end=\"640\"\u003e\u003cstrong data-start=\"610\" data-end=\"640\"\u003eProcessing control signals\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"641\" data-end=\"680\"\u003e\n\u003cp data-start=\"643\" data-end=\"680\"\u003e\u003cstrong data-start=\"643\" data-end=\"680\"\u003eCommunication between CNC modules\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"681\" data-end=\"725\"\u003e\n\u003cp data-start=\"683\" data-end=\"725\"\u003e\u003cstrong data-start=\"683\" data-end=\"707\"\u003eInterface management\u003c\/strong\u003e with other boards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"726\" data-end=\"775\"\u003e\n\u003cp data-start=\"728\" data-end=\"775\"\u003eSupporting \u003cstrong data-start=\"739\" data-end=\"775\"\u003eoverall CNC controller operation\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"777\" data-end=\"780\"\u003e\n\u003ch3 data-start=\"782\" data-end=\"810\"\u003e🧩 Installation Location\u003c\/h3\u003e\n\u003cp data-start=\"811\" data-end=\"843\"\u003eThis PCB is typically installed:\u003c\/p\u003e\n\u003cul data-start=\"845\" data-end=\"993\"\u003e\n\u003cli data-start=\"845\" data-end=\"881\"\u003e\n\u003cp data-start=\"847\" data-end=\"881\"\u003eInside the \u003cstrong data-start=\"858\" data-end=\"881\"\u003eCNC control cabinet\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"882\" data-end=\"926\"\u003e\n\u003cp data-start=\"884\" data-end=\"926\"\u003eOn the \u003cstrong data-start=\"891\" data-end=\"926\"\u003emain control rack \/ motherboard\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"927\" data-end=\"993\"\u003e\n\u003cp data-start=\"929\" data-end=\"993\"\u003eConnected to other boards through the \u003cstrong data-start=\"967\" data-end=\"993\"\u003eFANUC system backplane\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"995\" data-end=\"998\"\u003e\n\u003ch3 data-start=\"1000\" data-end=\"1019\"\u003e🔎 Board Series\u003c\/h3\u003e\n\u003cp data-start=\"1020\" data-end=\"1218\"\u003eThe \u003cstrong data-start=\"1024\" data-end=\"1037\"\u003eA20B-3900\u003c\/strong\u003e board family includes several PCB modules used for \u003cstrong data-start=\"1089\" data-end=\"1148\"\u003especific control, interface, or communication functions\u003c\/strong\u003e within FANUC CNC systems. Differences between models usually involve:\u003c\/p\u003e\n\u003cul data-start=\"1220\" data-end=\"1306\"\u003e\n\u003cli data-start=\"1220\" data-end=\"1243\"\u003e\n\u003cp data-start=\"1222\" data-end=\"1243\"\u003e\u003cstrong data-start=\"1222\" data-end=\"1243\"\u003eHardware revision\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1244\" data-end=\"1270\"\u003e\n\u003cp data-start=\"1246\" data-end=\"1270\"\u003e\u003cstrong data-start=\"1246\" data-end=\"1270\"\u003eSystem compatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1271\" data-end=\"1306\"\u003e\n\u003cp data-start=\"1273\" data-end=\"1306\"\u003e\u003cstrong data-start=\"1273\" data-end=\"1306\"\u003eMachine builder configuration\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1308\" data-end=\"1311\"\u003e\n\u003cp data-start=\"1313\" data-end=\"1467\"\u003e✅ \u003cstrong data-start=\"1315\" data-end=\"1338\"\u003eSimple explanation:\u003c\/strong\u003e\u003cbr data-start=\"1338\" data-end=\"1341\"\u003e\u003cstrong data-start=\"1341\" data-end=\"1464\"\u003eA20B-3900-0042 = FANUC internal CNC control PCB used for signal processing and communication inside the CNC controller.\u003c\/strong\u003e 🔧\u003c\/p\u003e","brand":"JJAutomation","offers":[{"title":"Default Title","offer_id":44875790647432,"sku":"A20B-3900-0042","price":0.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/1903\/3224\/files\/WhatsAppImage2025-10-18at1.47.49PM-2026-03-09T145505.969.jpg?v=1773048313","url":"https:\/\/jjautomation.in\/products\/fanuc-from-sram-module-for-16i-18i-21i-a20b-3900-0180-copy-1","provider":"JJAutomation","version":"1.0","type":"link"}