{"product_id":"glc-sx-mm-cisco-1000base-sx-sfp-transceiver-refurbished","title":"Cisco GLC-SX-MM 1000BASE-SX SFP Transceiver — 850nm Multimode, LC Duplex, Refurbished","description":"\u003cp\u003e\u003cstrong\u003eThe original Cisco 1G short-reach SFP — for keeping an existing fleet on the exact part number\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCisco GLC-SX-MM — 1000BASE-SX SFP, 850nm, multimode fiber, LC duplex\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"border-left: 3px solid #1e8f5e; background: #f7f8fa; padding: 10px 14px; margin: 14px 0;\"\u003e→ \u003cstrong\u003eGLC-SX-MM has no DOM.\u003c\/strong\u003e Cisco replaced it with the GLC-SX-MMD, which adds Digital Optical Monitoring. If you want light levels in the CLI, order the \u003ca href=\"\/products\/cisco-glc-sx-mmd-1000base-sx-sfp-transceiver-new\"\u003eGLC-SX-MMD\u003c\/a\u003e instead.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e GLC-SX-MM\u003cbr\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e GLC-SX-MM-R\u003cbr\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e 1000BASE-SX SFP transceiver module, multimode, 850nm, LC duplex\u003c\/p\u003e\n\u003cp\u003eGLC-SX-MM is Cisco's end-of-life 1000BASE-SX SFP. It is still the part some change-control processes and spares lists call for by name, which is why we carry it.\u003c\/p\u003e\n\u003cp\u003eCisco's replacement, GLC-SX-MMD, has the same 1000BASE-SX optics on multimode fiber and adds DOM and an extended temperature range.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhich One Do I Need?\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eIf you need\u003c\/th\u003e\n\u003cth\u003ePart\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eExact-match spare for a GLC-SX-MM fleet\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eGLC-SX-MM\u003c\/strong\u003e — this listing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSame optics, with DOM (Cisco's replacement)\u003c\/td\u003e\n\u003ctd\u003e\n\u003ca href=\"\/products\/cisco-glc-sx-mmd-1000base-sx-sfp-transceiver-new\"\u003eGLC-SX-MMD, New\u003c\/a\u003e or \u003ca href=\"\/products\/cisco-glc-sx-mmd-1000base-sx-sfp-transceiver-refurbished\"\u003erefurbished\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1G over single-mode fiber\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/cisco-glc-lh-smd-single-mode-1000base-lx-lh-sfp-transceiver-cisco-original-refurbished\"\u003eGLC-LH-SMD\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10G over multimode fiber\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/sfp-10g-sr-cisco-10g-short-range-multimode-transceiver-cisco-original-new\"\u003eSFP-10G-SR\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eGLC-SX-MM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003e1000BASE-SX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData rate\u003c\/td\u003e\n\u003ctd\u003e1 Gb\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm factor\u003c\/td\u003e\n\u003ctd\u003eSFP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e850nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiber\u003c\/td\u003e\n\u003ctd\u003eMultimode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003eLC duplex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReach\u003c\/td\u003e\n\u003ctd\u003eUp to 550 m on 50\/125 µm multimode (OM2) per Cisco\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDOM\u003c\/td\u003e\n\u003ctd\u003eNot supported (GLC-SX-MMD adds DOM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLifecycle\u003c\/td\u003e\n\u003ctd\u003eEnd of life; replacement is GLC-SX-MMD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eRefurbished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eLifetime, backed by Resilient Tec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eSource: Cisco End-of-Sale notice for GLC-SX-MM (\u003ca href=\"https:\/\/www.cisco.com\/c\/en\/us\/products\/collateral\/interfaces-modules\/transceiver-modules\/eol_c51-698060.html\" target=\"_blank\" rel=\"noopener\"\u003eCisco EoL bulletin\u003c\/a\u003e) and Cisco 1000BASE SFP data sheet.\u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eGood to Know\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultimode only.\u003c\/strong\u003e 1000BASE-SX will not work over single-mode fiber. Check the jacket color and marking on your patch cords.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoth ends must match.\u003c\/strong\u003e An SX optic links to another SX optic, not to an LX or LH optic.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReach depends on fiber grade.\u003c\/strong\u003e Older 62.5 µm fiber gives much shorter reach than 50 µm OM2 or better.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eQuick Checklist — Is This the Right Module?\u003c\/h2\u003e\n\u003cp\u003eYour port takes a 1G SFP. Your fiber is multimode with LC connectors. The other end is also 1000BASE-SX. You need the exact GLC-SX-MM part, or you do not need DOM.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eAvailability\u003c\/h2\u003e\n\u003cp style=\"border-left: 3px solid #1e8f5e; background: #f7f8fa; padding: 10px 14px; margin: 14px 0;\"\u003e\u003cstrong\u003eRefurbished and tested · Ships from Resilient Tec in Knoxville, TN · Free standard shipping on US orders.\u003c\/strong\u003e\u003cbr\u003eWe confirm stock and lead time with you before an order ships. Need several, or a matching set? \u003ca href=\"\/pages\/request-a-quote\"\u003e\u003cstrong\u003eRequest a quote →\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e lifetime, \u003ca href=\"\/pages\/lifetime-warranty\"\u003ebacked by Resilient Tec\u003c\/a\u003e — not a manufacturer term. When something fails you reach a named seller in the US, not a ticket queue.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eYou Might Also Need\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/cisco-glc-sx-mmd-1000base-sx-sfp-transceiver-new\"\u003eCisco GLC-SX-MMD\u003c\/a\u003e — the current part with DOM\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/om4-lclc-02-om4-fiber-cable-lc-to-lc-2-meter\"\u003eOM4 LC to LC multimode patch cable, 2 m\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/cisco-glc-lh-smd-single-mode-1000base-lx-lh-sfp-transceiver-cisco-original-refurbished\"\u003eCisco GLC-LH-SMD\u003c\/a\u003e — 1G single-mode\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eRelated Guides\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/optical-transceivers-guide\"\u003eOptical Transceivers Guide\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/fiber-optic-cables-guide\"\u003eFiber Optic Cables Guide\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/compatibility-testing\"\u003eCompatibility and Testing\u003c\/a\u003e\u003c\/p\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":68148480835684,"sku":"GLC-SX-MM-R","price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/GLC-SX-MM_1.jpg?v=1794518258","url":"https:\/\/resilient-tec.com\/products\/glc-sx-mm-cisco-1000base-sx-sfp-transceiver-refurbished","provider":"Resilient Tec","version":"1.0","type":"link"}