{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CS1D-ETN21D","brand":"Omron","brandSlug":"omron","productSlug":"CS1D-ETN21D","canonicalUrl":"https://aoctrl.com/omron/CS1D-ETN21D","factsUrl":"https://aoctrl.com/api/mcp/products/CS1D-ETN21D","rawCanonicalId":null},"summary":{"shortDescription":"Omron CS1D Series Communications Module, CS1D-ETN21D, RJ45 termination, backplane mount.","salesMarkdown":"## Fit and function in the CS1D rack The CS1D-ETN21D is a Communications Module for Omron's CS1D redundant CPU series. It mounts on the backplane and connects via a single RJ45 port, giving the redundant controller a standard Ethernet link for programming, monitoring, or peer-to-peer messaging. Approvals include CE, cULus, Lloyd's Register, and NK, so the module is suited for industrial control panels in general manufacturing as well as marine and classification-society applications. Operating range is 0 to 55 °C. ## Integration notes Mounts on the CS1D backplane via a communications-capable slot; the RJ45 port provides a communications link over 0–55 °C. ## Documentation and compliance The module holds CE, cULus, Lloyd's, and NK approvals. Omron typically includes a declaration of conformity with the shipment. For specific regulatory submittals (RoHS, REACH), request the latest compliance certificate at RFQ time.","metaTitle":"Omron CS1D-ETN21D Communications Module, RJ45, Backplane","metaDescription":"Omron CS1D-ETN21D Communications Module for CS1D series. RJ45 termination, backplane mount, CE/cULus/Lloyd/NK approved. Active production, sourced via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"Type":"Communications Module","Series":"CS1D","Weight":"0.441 lb (200.03 g)","Package":"Bulk","Mounting Type":"Backplane","Approval Agency":"CE, cULus, Lloyd, NK","lifecycle_stage":"eol_hot","Termination Style":"RJ45","Operating Temperature":"0°C~55°C","For Use With/Related Products":"CS Series"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2,379.98 – $2,904.40","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/CS1D-ETN21D/alternatives.json"},"ai":{"faq":[{"question":"What approvals does the CS1D-ETN21D carry?","answer":"It carries CE, cULus, Lloyd's Register, and NK (Nippon Kaiji Kyokai) approvals, covering industrial, marine, and classification-society applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/omron/CS1D-ETN21D","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/omron/CS1D-ETN21D when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}