{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1901-1MX00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1901-1MX00","canonicalUrl":"https://aoctrl.com/siemens/3RK1901-1MX00","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1901-1MX00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens, AS-Interface Extension Plug, 3RK1901-1MX00, IP67, 26.5-31.6V supply, 10mA max draw, -25 to +85°C.","salesMarkdown":"The Siemens 3RK1901-1MX00 is an AS-Interface Extension Plug — a passive bus component that extends the reach of an AS-i segment. It carries no slave logic itself, so it doesn't add nodes to the network; it just pushes the physical layer out another 100 m, doubling the standard segment to 200 m total. That's the whole job: more cable length, no extra addressing. It's IP67-rated, meaning the housing and the M12 connection point handle washdown environments — food processing, automotive paint lines, any spot where a standard IP20 bus repeater would get hosed down and fail. Supply voltage comes straight from the AS-Interface bus (26.5 to 31.6 V per the AS-i spec), and the plug draws only 10 mA — negligible load on the AS-i power supply. A green LED on the supply voltage line confirms the bus is live; a flashing LED between 10 and 26.5 V warns of a brownout condition. ## Pinout and Connection — What You Need to Wire Pin 1 is U AS-Interface +, Pin 3 is U AS-Interface -. That's the standard M12 pinout for AS-i power and data on the same pair. Polarity reversal protection is built in, so a swapped pair won't fry the plug — it just won't light up until you correct it. The plug connects via an AS-Interface M12 feeder, order code 3RX9801-0AA00, which must be ordered separately. That feeder is the physical tee that drops the extension cable off the main trunk. No feeder, no connection — it's not included in the box.","metaTitle":"Siemens 3RK1901-1MX00 AS-Interface Extension Plug, IP67","metaDescription":"Siemens 3RK1901-1MX00 AS-Interface Extension Plug. IP67, 26.5-31.6V supply, 10mA draw. Phased-out product sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"PIN1":"U AS-Interface +","PIN3":"U AS-Interface -","title":"3RK1901-1MX00","description":"AS-i Extension Plug Phased-out product!!! For further information, please contact our sales department Doubling of the cable length to 200 m per AS-Interface segment Degree of protection IP67 Connection via AS-Interface M12 branch 3RX9801-0AA00 must be ordered separately","U AS-Interface":"green LED","lifecycle_stage":"current","protection class IP":"IP67","Design Of The Product":"AS-Interface Extension Plug","LED on supply voltage":"26.5 ... 31.6V","Total Current Input Max":"10mA","Design Of The Slave Type":"no slave integrated","LED flashes supply voltage":"10 ... 26.5V","Voltage supply using AS-Interface":"Yes","Ambient Temperature During Operation":"-25 ... +85°C","design of the AS-Interface connection":"Connection via AS-Interface M12 feeder 3RX9801-0AA00","Connection Polarity reversal protection":"yes","operating voltage according to AS-Interface specification":"26.5 ... 31.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2506c84bc50fd54eb200b0e325c9c833.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=422302&mlfb=3RK1901-1MX00"},"ai":{"faq":[{"question":"What are the pin assignments for 3RK1901-1MX00?","answer":"Pin 1 is U AS-Interface + (bus power and data positive), Pin 3 is U AS-Interface - (bus power and data negative). This follows the standard M12 pinout for AS-Interface. Polarity reversal protection is built in."},{"question":"What voltage does the 3RK1901-1MX00 run on?","answer":"It runs on the standard AS-Interface bus voltage of 26.5 to 31.6 V. A green LED indicates the supply is within this range; the LED flashes between 10 and 26.5 V to warn of a low-voltage condition. Maximum current draw is 10 mA."},{"question":"What connector does 3RK1901-1MX00 use?","answer":"It connects via an AS-Interface M12 feeder, order code 3RX9801-0AA00, which must be ordered separately. The feeder is the physical tee that connects the extension cable to the main AS-i trunk."},{"question":"What is the IP rating and temperature range?","answer":"IP67 rated for dust and immersion protection. Operating temperature range is -25 to +85°C, suitable for washdown environments and both cold storage and hot machine enclosures."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1901-1MX00","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RK1901-1MX00 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}