{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6GT2791-6AH20","brand":"Siemens","brandSlug":"siemens","productSlug":"6GT2791-6AH20","canonicalUrl":"https://aoctrl.com/siemens/6GT2791-6AH20","factsUrl":"https://aoctrl.com/api/mcp/products/6GT2791-6AH20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC RTLS accessory, antenna cable FME-F / RSMA-M, 2 m, 50 Ω, halogen-free, silicon-free.","salesMarkdown":"The Siemens 6GT2791-6AH20 is a 2-meter coaxial antenna cable for the SIMATIC RTLS (Real-Time Locating System) product family. It connects an FME female antenna port to an R-SMA male gateway or transponder input — the two most common RF interfaces in industrial RTLS deployments. Rated at 50 Ω characteristic impedance, it is sized for the 2.4 GHz ISM band where typical insertion loss runs 0.053 dB/m. That works out to about 0.11 dB total for the 2 m assembly — negligible for a typical reader-to-antenna run, but worth knowing if you are chaining multiple jumpers. ## Build and environment The cable jacket is halogen-free and silicon-free (FRNC — flame-retardant, non-corrosive), with a braided shield of tin-plated copper wires. That matters for plenum or enclosed cabinet runs where corrosive off-gassing during a fire is a concern. The sheath color is RAL 6034 (pastel turquoise), which is the standard SIMATIC RTLS cable identifier. Operating temperature spans -40 to +80 °C, same as storage and transport. Installation temperature is slightly tighter at -25 to +80 °C — meaning you can pull it in a cold warehouse but should let it warm before bending tight. Minimum single-bend radius is 31.5 mm; multiple-bend radius is 44 mm. Flame resistance carries UL 1685 vertical tray and UL 1581 sec. 1090 (H) ratings, plus ECE-R 118 for vehicle use. The cable is UV-resistant and RoHS-conformant. ## Lifecycle reality — NRND This part carries a manufacturer lifecycle status of NRND (Not Recommended for New Designs). That means Siemens will continue to support existing installations and likely still manufacture it for spares, but they are steering new projects toward a replacement. If you are filling a BOM for a new line, verify the current recommended successor with your Siemens contact before locking the BOM. For existing RTLS deployments, this cable remains the correct service part.","metaTitle":"Siemens 6GT2791-6AH20 SIMATIC RTLS Antenna Cable, 2 m, 50 Ω","metaDescription":"Siemens 6GT2791-6AH20 SIMATIC RTLS antenna cable, FME-F to R-SMA-M, 2 m, 50 Ω, halogen-free, silicon-free. NRND — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["RFID & Auto-ID"],"specifications":{"title":"6GT2791-6AH20","To Grease":"Conditional resistance","Rated Value":"50 Ω","Wire Length":"2 m","description":"SIMATIC RTLS accessory, antenna cable FME-F / RSMA-M, length 2 m.","Halogen-Free":"Yes","Silicon-Free":"Yes","During Storage":"-40 ... +80 °C","To Mineral Oil":"conditional resistance","Of Cable Sheath":"RAL 6034","RoHS conformity":"Yes","lifecycle_stage":"mature","During Operation":"-40 ... +80 °C","During Transport":"-40 ... +80 °C","Cable Designation":"SIMATIC NET Antenna Cable FRNC * 16AWG, E116441 CL3","Weight Per Length":"75 kg/km","During Installation":"-25 ... +80 °C","Product Description":"Coaxial cable","Suitability For Use":"Plug-in cable for connecting a FME antenna to a transponder or gateway","Design Of The Shield":"Braided shield made of tin-plated copper wires","at 2.4 GHz / typical":"0.053 dB/m","according to IEC 81346-2":"WG","Type Of Electrical Connection":"FME (female, straight) / R-SMA (male, straight)","according to IEC 81346-2:2019":"WGB","Number Of Electrical Connections":"2","For Fire Behavior / Flame Resistance":"UL 1685 (vertical tray), UL 1581, sec. 1090 (H), ECE-R 118:2019-06, § 6.2.6 acc. ISO 6722-1 § 5.22","With Single Bend / Minimum Permissible":"31.5 mm","With Multiple Bends / Minimum Permissible":"44 mm","radiological resistance / to UV radiation":"resistant","Symmetrical Tolerance Of The Outer Diameter / Of Cable Sheath":"0.2 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/43b261f6475e9971d482519c7bf596a7.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1133076&mlfb=6GT2791-6AH20"},"ai":{"faq":[{"question":"What connectors does this cable use?","answer":"FME female (straight) on one end, R-SMA male (straight) on the other. This is the standard interface between a SIMATIC RTLS FME antenna and the R-SMA port on a transponder or gateway."},{"question":"Is this cable halogen-free and suitable for plenum runs?","answer":"Yes — halogen-free and silicon-free, with UL 1685 vertical tray flame rating. The jacket material is FRNC (flame-retardant, non-corrosive), suitable for enclosed cable paths where corrosive smoke is a concern."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6GT2791-6AH20","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/6GT2791-6AH20 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:41:02.429Z","lastPublished":"2026-07-20T14:41:02.429Z","indexable":true}}