{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7901-3BF21-0XA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7901-3BF21-0XA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7901-3BF21-0XA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7901-3BF21-0XA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-200, PC/PPI cable, 5 m, 90° connector, RTS switch, order code 6ES7901-3BF21-0XA0.","salesMarkdown":"The Siemens 6ES7901-3BF21-0XA0 is a PC/PPI cable for connecting an S7-200 CPU to a PC's serial port. It comes with a 90-degree connector and an RTS switch, and the cable length is 5 m. ## Key specs and fit The 5 m length covers typical distances from a desk to a panel-mounted S7-200. The 90-degree connector keeps the cable profile low on the CPU port — useful when the connector sits near other wiring or a panel door. The RTS switch handles flow control for older PC serial ports that need hardware handshaking.","metaTitle":"Siemens 6ES7901-3BF21-0XA0 SIMATIC S7-200 PC/PPI Cable, 5 m","metaDescription":"Siemens 6ES7901-3BF21-0XA0 SIMATIC S7-200 PC/PPI cable, 5 m length, 90° connector, RTS switch. Mature lifecycle, sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC Accessories"],"specifications":{"title":"6ES7901-3BF21-0XA0","description":"SIMATIC S7-200, PC/PPI CABLE FOR CONNECTING S7-200 TO SERIAL PORT OF PC, 90 DEGR. CONNECTOR, RTS SWITCH, 5 M","Cable length":"5 m","Weight, approx.":"200 g","lifecycle_stage":"mature"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$70.98","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6c68cae2afadd510792d57981fddf9f3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=519482&mlfb=6ES7901-3BF21-0XA0"},"ai":{"faq":[{"question":"What is the cable length?","answer":"The cable length is 5 m."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7901-3BF21-0XA0","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/6ES7901-3BF21-0XA0 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}}