{"id":98449,"date":"2024-05-27T11:44:53","date_gmt":"2024-05-27T09:44:53","guid":{"rendered":"https:\/\/firstcolo.blackpeppers.de\/glossary\/dark-fiber\/"},"modified":"2026-03-13T00:11:02","modified_gmt":"2026-03-12T23:11:02","slug":"dark-fiber","status":"publish","type":"glossary","link":"https:\/\/firstcolo.blackpeppers.de\/en\/glossary\/dark-fiber\/","title":{"rendered":"Dark Fiber"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"98449\" class=\"elementor elementor-98449 elementor-48640\" data-elementor-post-type=\"glossary\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3b42686e e-flex e-con-boxed e-con e-parent\" data-id=\"3b42686e\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-1272d6a2 e-con-full e-flex e-con e-child\" data-id=\"1272d6a2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-31a7f965 e-con-full e-flex e-con e-child\" data-id=\"31a7f965\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-79c255f2 e-con-full e-flex e-con e-child\" data-id=\"79c255f2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-59edb0b6 elementor-widget elementor-widget-heading\" data-id=\"59edb0b6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">What is Dark Fiber?<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4fafc2d5 elementor-widget elementor-widget-text-editor\" data-id=\"4fafc2d5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Dark Fiber (&#8220;dark fiber&#8221;) is a continuously installed fiber optic connection between two locations, where only the unlit (i.e., unused) fiber itself is provided. The provider thus supplies only the physical infrastructure, not the active transmission technology or a preconfigured data service. From the defined handover points, responsibility for operation, illumination, and use lies entirely with the customer.  <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-75bfe6ba e-flex e-con-boxed e-con e-parent\" data-id=\"75bfe6ba\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6818136c elementor-widget elementor-widget-heading\" data-id=\"6818136c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Operating Principle<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-31d5bc10 elementor-widget elementor-widget-text-editor\" data-id=\"31d5bc10\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The term &#8220;dark&#8221; means that initially no light signal is transmitted over the fiber. Only when the customer connects their own active network equipment such as transceivers, multiplexers, or optical transmission systems is the fiber &#8220;lit&#8221; and used for data transmission. This gives the customer full control over bandwidth, protocols, and network design.  <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2d3af19f elementor-widget elementor-widget-heading\" data-id=\"2d3af19f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Typical Use Cases\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7c11ced6 elementor-widget elementor-widget-text-editor\" data-id=\"7c11ced6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Dark fiber connections are primarily used by enterprises, data center operators, telecommunications providers, and public institutions that require high bandwidth, low <a href=\"https:\/\/firstcolo.blackpeppers.de\/en\/glossary\/latency\/\">latency<\/a>, or maximum network sovereignty. Common scenarios include site interconnection for large companies, data center interconnection, or building proprietary carrier networks. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-374ba494 elementor-widget elementor-widget-heading\" data-id=\"374ba494\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Benefits<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6770f0a4 elementor-widget elementor-widget-text-editor\" data-id=\"6770f0a4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A key advantage of dark fiber is its high flexibility. Customers can choose the transmission technology themselves and increase capacity by replacing the active equipment without having to install new lines. In addition, dark fiber enables very high data security and low latency, as no third-party active network technology is present in the transmission path.  <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7f787f4b e-con-full e-flex e-con e-child\" data-id=\"7f787f4b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7ce9364d elementor-widget elementor-widget-button\" data-id=\"7ce9364d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Homepage<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4a05f5cd elementor-widget elementor-widget-button\" data-id=\"4a05f5cd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/firstcolo.blackpeppers.de\/en\/knowledge\/glossary\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Glossary<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>What is Dark Fiber? Dark Fiber (&#8220;dark fiber&#8221;) is a continuously installed fiber optic connection between two locations, where only the unlit (i.e., unused) fiber itself is provided. The provider thus supplies only the physical infrastructure, not the active transmission technology or a preconfigured data service. From the defined handover points, responsibility for operation, illumination, [&hellip;]<\/p>\n","protected":false},"author":43,"featured_media":97354,"menu_order":0,"template":"","meta":{"content-type":"","footnotes":""},"glossary-categories":[],"glossary-tags":[],"class_list":["post-98449","glossary","type-glossary","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>What is Dark Fiber | firstcolo Glossary<\/title>\n<meta name=\"description\" content=\"Dark Fiber explained: Discover the benefits and responsibilities of using unlit fiber optic connections.\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" 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