{"id":5489,"date":"2026-07-22T11:13:13","date_gmt":"2026-07-22T11:13:13","guid":{"rendered":"https:\/\/optics.carritech.com\/optical-transceivers\/uncategorized\/dwdm-sfp-3819\/"},"modified":"2026-07-22T12:08:17","modified_gmt":"2026-07-22T12:08:17","slug":"dwdm-sfp-3819","status":"publish","type":"product","link":"https:\/\/optics.carritech.com\/it\/optical-transceivers\/optical-transceivers\/sfp\/1-25g-dwdm-sfp\/dwdm-sfp-3819\/","title":{"rendered":"DWDM-SFP-3819"},"content":{"rendered":"<p><strong>Cisco DWDM-SFP-3819 compatible 1000BASE-DWDM optical transceiver<\/strong><\/p>\n<p>This product is offered as a Carritech Optics compatible alternative for <strong>Cisco DWDM-SFP-3819<\/strong> requirements. It is mapped to the Carritech <strong>CT-SFP-DWXX-80<\/strong> optical profile.<\/p>\n<p>The module provides <strong>1,25Gbps<\/strong> operation in a <strong>SFP<\/strong> form factor, using <strong>1538.19nm, ITU channel 49<\/strong>. It supports 80km-class engineered link over single-mode fibre through a duplex LC\/UPC optical interface, with digital diagnostic monitoring where supported by the host platform.<\/p>\n<p><strong>Match classification:<\/strong> wavelength-specific 80km-class equivalent.<\/p>\n<p><strong>Compatibility note:<\/strong> Engineered DWDM reach depends on total fibre, connector, mux\/demux and dispersion loss; verify the link budget before deployment.<\/p>\n<p>Coding, platform support, firmware requirements, FEC mode and optical link budget should be confirmed for the target equipment before deployment.<\/p>","protected":false},"excerpt":{"rendered":"<ul>\n<li>Cisco <strong>DWDM-SFP-3819<\/strong> compatible alternative for 1000BASE-DWDM requirements.<\/li>\n<li>1.25Gbps SFP optical transceiver using 1538.19nm, ITU channel 49.<\/li>\n<li>80km-class engineered link over single-mode fibre.<\/li>\n<li>duplex LC\/UPC interface with DOM\/DDM where supported.<\/li>\n<li>Mapped to Carritech <strong>CT-SFP-DWXX-80<\/strong>.<\/li>\n<\/ul>","protected":false},"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[250],"product_cat":[42,17,18],"product_tag":[215,820],"class_list":["post-5489","product","type-product","status-publish","product_brand-cisco","product_cat-1-25g-dwdm-sfp","product_cat-optical-transceivers","product_cat-sfp","product_tag-exc","product_tag-sfp","first","instock","shipping-taxable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.0 (Yoast SEO v28.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>DWDM-SFP-3819 Compatible SFP 1000BASE-DWDM Transceiver | Carritech Op.<\/title>\n<meta name=\"description\" content=\"DWDM-SFP-3819 compatible SFP 1000BASE-DWDM optical transceiver alternative for Cisco: 1538.19nm, ITU channel 49, 80KM, LC SM.\" \/>\n<meta name=\"robots\" content=\"index, follow, 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