{"id":1793,"date":"2016-01-29T03:16:04","date_gmt":"2016-01-29T03:16:04","guid":{"rendered":"https:\/\/www.tarluz.com\/?p=1793"},"modified":"2018-02-24T05:58:56","modified_gmt":"2018-02-24T05:58:56","slug":"trouble-shooting-for-exfo-otdr","status":"publish","type":"post","link":"https:\/\/www.tarluz.com\/ar\/test-equipment\/trouble-shooting-for-exfo-otdr\/","title":{"rendered":"Trouble shooting for EXFO OTDR"},"content":{"rendered":"<table border=\"1\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr align=\"center\">\n<td width=\"25%\">Problem<\/td>\n<td width=\"25%\">Cause<\/td>\n<td width=\"50%\">Solution<\/td>\n<\/tr>\n<tr>\n<td>The application displays a message indicating that a \u201cNon-resolved fiber end\u201d event has been found.<\/td>\n<td>The fiber under test is too long.<\/td>\n<td>Ensure that the fiber under test is shorter than the maximum length the OTDR can measure.<\/td>\n<\/tr>\n<tr>\n<td>The application displays message indicating that a \u201clive fiber error\u201d occurred and the fiber was not connected to the SM Live port.<\/td>\n<td>Light has been detected on the OTDR port during the acquisition or while you were monitoring a fiber in real-time mode.<\/td>\n<td>Disconnect the fiber from the OTDR port. Press OK to close the message.<br \/>\nStart another acquisition without any fiber connected to the OTDR. The\u00a0message about live fiber error should<br \/>\nnot appear and the OTDR trace\u00a0should look \u201cnormal\u201d.<br \/>\nIf you still see the message about live fiber error even if no fiber is connected to the OTDR, contact EXFO.<br \/>\nNever connect a live fiber to the OTDR port without a proper setup.<br \/>\nAny incoming optical power ranging from \u201365 dBm to \u201340 dBm will affect the OTDR acquisition. The way the acquisition will be affected depends on the selected pulse width.<br \/>\nAny incoming signal greater than \u2013 20 dBm could damage your OTDR module permanently. For live-fiber<br \/>\ntesting, refer to the SM Live port specifications for the characteristics of the built-in filter.<\/td>\n<\/tr>\n<tr>\n<td>The application displays a message indicating that a \u201clive fiber error\u201d occurred and the fiber was connected to the SM Live port.<\/td>\n<td>The level of integrated power in the filter bandwidth of the SM Live port is too high. A Transmission wavelength from the network could be too close to the SM Live wavelength.<\/td>\n<td>Disconnect the fiber from the OTDR port. Press OK to close the message. Start another acquisition without any fiber connected to the OTDR. The message about live fiber error should not appear and the OTDR trace should look \u201cnormal\u201d.<br \/>\nIf you still see the message about live fiber error even if no fiber is connected to the OTDR, contact EXFO.<br \/>\nSingle mode live-fiber testing requires that the integrated power in the test channel (corresponding to the filter bandwidth of the SM Live port) be as low as possible. Any incoming optical power ranging from \u201365dBm to \u2013 40dBm will affect the OTDR acquisition. The way the acquisition will be affected depends on the<br \/>\nselected pulse width. Higher power levels will prevent acquisition from running. Verify network compatibility with the SM Live wavelength. Ensure that the network is not transmitting wavelengths greater than 1600nm.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Source: EXFO<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Problem Cause Solution The application displays a message indicating that a \u201cNon-resolved fiber end\u201d event has been found. The fiber under test is too long. Ensure that the fiber under test is shorter than the maximum length the OTDR can measure. The application displays message indicating that a \u201clive fiber error\u201d occurred and the fiber [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1046,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[60],"tags":[392,394,49,393],"class_list":["post-1793","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-test-equipment","tag-exfo-otdr","tag-exfo-otdr-trouble-shooting","tag-otdr","tag-otdr-trouble-shooting"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.3 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Trouble shooting for EXFO OTDR - TARLUZ - FIBER OPTIC SUPPLIERS<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tarluz.com\/ar\/test-equipment\/trouble-shooting-for-exfo-otdr\/\" \/>\n<meta property=\"og:locale\" content=\"ar_AR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Trouble shooting for EXFO OTDR\" \/>\n<meta property=\"og:description\" content=\"Problem Cause Solution The application displays a message indicating that a \u201cNon-resolved fiber end\u201d event has been found. The fiber under test is too long. Ensure that the fiber under test is shorter than the maximum length the OTDR can measure. 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