{"product_id":"fanuc-a02b-0303-c205-sdu1-detector-interface-unit","title":"FANUC A02B-0303-C205 SDU1 4-Axis Detector Interface Unit","description":"\u003cp style=\"margin: 0 0 14px;\"\u003e\u003cstrong\u003eFANUC A02B-0303-C205\u003c\/strong\u003e is a basic \u003cstrong\u003efour-axis separate detector interface unit\u003c\/strong\u003e, commonly called SDU1, for compatible FANUC CNC servo systems. It connects external position detectors such as linear scales to the CNC through the FSSB optical servo network.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe unit provides four detector channels through JF101–JF104 and supports an additional four-axis unit when required. Use the complete \u003cstrong\u003eA02B-0303-C205\u003c\/strong\u003e nameplate as the primary reference and confirm the detector type, FSSB layout, connectors and CNC parameters.\u003c\/p\u003e\n\u003ch4 style=\"margin: 32px 0 14px;\"\u003eA02B-0303-C205 Product Specifications\u003c\/h4\u003e\n\u003ctable cellpadding=\"10\" style=\"width: 100%; border-collapse: collapse; margin: 0 0 18px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f7f8fa;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFANUC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel \/ MPN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eA02B-0303-C205\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f8fa;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eCommon Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSDU1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSeparate position detector interface unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f8fa;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBasic four-axis unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDetector Channels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJF101, JF102, JF103 and JF104\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f8fa;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFSSB optical servo interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFSSB Connectors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCOP10A rear stage; COP10B front stage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f8fa;\"\u003e\n\u003ctd\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24VDC input at CP11A; output at CP11B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Connection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJA4A for an absolute detector battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f8fa;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eExpansion\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCNF1 connection for A02B-0236-C204\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStatus LEDs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePOWER, OPEN, ERR1 and ERR2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f8fa;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew, refurbished, or used 90% new; subject to stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTesting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100% tested; test video available\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f8fa;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eHandling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNormally 1–3 business days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping \/ ETA\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDHL \/ UPS \/ FedEx worldwide; typically 3–7 business days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f8fa;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 year new\/refurbished; 3 months used 90% new\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eService \/ Packing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTechnical support; anti-static reinforced packing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4 style=\"margin: 32px 0 14px;\"\u003eFour-Axis Position Feedback Interface\u003c\/h4\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe A02B-0303-C205 receives feedback from up to four separate position detectors, including compatible linear scales for full-closed-loop axis control. FSSB links the interface unit with the servo system and CNC. OPEN indicates FSSB communication; ERR1 and ERR2 indicate disconnection at the rear- or front-stage optical interface.\u003c\/p\u003e\n\u003ch4 style=\"margin: 32px 0 14px;\"\u003eBasic Unit vs. Additional Unit\u003c\/h4\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003e\u003cstrong\u003eA02B-0303-C205 is the basic four-axis unit.\u003c\/strong\u003e FANUC lists A02B-0236-C204 as the additional four-axis unit, connected through CNF1 when more detector channels are required. They have different roles and are not identical replacements. Confirm the system architecture and connector assignments.\u003c\/p\u003e\n\u003ch4 style=\"margin: 32px 0 14px;\"\u003eTesting and Installation Notes\u003c\/h4\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eREACO CNC checks the nameplate, housing, detector connectors, FSSB ports, power circuit, battery interface, LEDs and communication before shipment. Isolate power, protect optical connectors from contamination, and record the FSSB order and detector settings before removing the original unit.\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eRelated resources: \u003ca href=\"\/it\/collections\/fanuc-io-units\"\u003eFANUC interface and I\/O units\u003c\/a\u003e and \u003ca href=\"\/it\/products\/fanuc-mitsubishi-cnc-robot-parts-repair\"\u003eFANUC CNC repair services\u003c\/a\u003e.\u003c\/p\u003e","brand":"FANUC","offers":[{"title":"Brand New","offer_id":67843356131543,"sku":"A02B-0303-C205-new","price":694.0,"currency_code":"USD","in_stock":true},{"title":"Used (90% New)","offer_id":67843356164311,"sku":"A02B-0303-C205-used","price":413.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/3784\/4183\/files\/fanuc-a02b-0303-c205-sdu1-main.webp?v=1792576230","url":"https:\/\/reacocnc.com\/it\/products\/fanuc-a02b-0303-c205-sdu1-detector-interface-unit","provider":"REACO CNC","version":"1.0","type":"link"}