{"id":1070,"date":"2016-06-08T07:00:08","date_gmt":"2016-06-08T07:00:08","guid":{"rendered":"http:\/\/www.ispblog.com.br\/?p=1070"},"modified":"2016-06-08T07:00:08","modified_gmt":"2016-06-08T07:00:08","slug":"otdr-importancia-e-criterios-de-escolha","status":"publish","type":"post","link":"https:\/\/ispmais.com.br\/blog\/?p=1070","title":{"rendered":"OTDR &#8211; Import\u00e2ncia e Crit\u00e9rios de Escolha"},"content":{"rendered":"<p>Com frequ\u00eancia sou questionado sobre a import\u00e2ncia de um OTDR.<\/p>\n<p>Ao meu ver, o REFL\u00caCTOMETRO \u00d3PTICO NO DOM\u00cdNIO DO TEMPO (acreditem, OTDR \u00e9 a abrevia\u00e7\u00e3o em ingl\u00eas deste palavr\u00e3o) \u00e9 o equipamento mais importante na certifica\u00e7\u00e3o e manuten\u00e7\u00e3o de redes FTTx.<\/p>\n<p>Esta import\u00e2ncia vem da possibilidade do OTDR medir v\u00e1rios par\u00e2metros de um enlace \u00f3ptico:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-1073\" src=\"http:\/\/www.ispblog.com.br\/wp-content\/uploads\/2016\/03\/otdr-1024x728.jpg\" alt=\"otdr\" width=\"1024\" height=\"728\" srcset=\"https:\/\/ispmais.com.br\/blog\/wp-content\/uploads\/2016\/03\/otdr-1024x728.jpg 1024w, https:\/\/ispmais.com.br\/blog\/wp-content\/uploads\/2016\/03\/otdr-300x213.jpg 300w, https:\/\/ispmais.com.br\/blog\/wp-content\/uploads\/2016\/03\/otdr-768x546.jpg 768w, https:\/\/ispmais.com.br\/blog\/wp-content\/uploads\/2016\/03\/otdr-1536x1092.jpg 1536w, https:\/\/ispmais.com.br\/blog\/wp-content\/uploads\/2016\/03\/otdr-2048x1456.jpg 2048w, https:\/\/ispmais.com.br\/blog\/wp-content\/uploads\/2016\/03\/otdr-150x107.jpg 150w, https:\/\/ispmais.com.br\/blog\/wp-content\/uploads\/2016\/03\/otdr-696x495.jpg 696w, https:\/\/ispmais.com.br\/blog\/wp-content\/uploads\/2016\/03\/otdr-1068x759.jpg 1068w, https:\/\/ispmais.com.br\/blog\/wp-content\/uploads\/2016\/03\/otdr-1920x1365.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>Diferente de um medidor de pot\u00eancia (POWER METER), estas medi\u00e7\u00f5es s\u00e3o apresentadas graficamente pelo OTDR de forma que podemos avaliar a dist\u00e2ncia de cada evento apontado pelo equipamento, facilitando a identifica\u00e7\u00e3o e localiza\u00e7\u00e3o de problemas na rede.<\/p>\n<p>Com a grande oferta de modelos de OTDR que dispomos hoje no mercado, considero importante que sejam avaliadas as seguintes caracter\u00edsticas antes de eleger qual modelo comprar:<\/p>\n<ul>\n<li>Range din\u00e2mico de 36 dB ou mais, importante para medir fibras com \u201csplitagem\u201d 1&#215;64 ou 1&#215;128.<\/li>\n<li>Zona morta de atenua\u00e7\u00e3o e evento de 10 metros ou menos, para medir eventos pr\u00f3ximos ao OTDR.<\/li>\n<li>Comprimentos de onda 1310\/1550 e 1625 ou 1650 nm com porta filtrada, para medi\u00e7\u00e3o de fibras ativas.<\/li>\n<li>Facilidade de uso, preferencialmente com menu em portugu\u00eas.<\/li>\n<li>Suporte, manuten\u00e7\u00e3o e garantia no Brasil.<\/li>\n<li>Treinamento operacional.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><strong>Ronaldo Couto<\/strong><br \/>\n<strong>Engenheiro Eletricista<\/strong><br \/>\n<strong>Primori Tecnologia<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mat\u00e9ria de Ronaldo Couto, Publicada na Revista ISPmais &#8211; Edi\u00e7\u00e3o 03.<\/p>\n","protected":false},"author":1,"featured_media":1071,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"image","meta":{"footnotes":""},"categories":[5],"tags":[53,71,107,136],"class_list":{"0":"post-1070","1":"post","2":"type-post","3":"status-publish","4":"format-image","5":"has-post-thumbnail","7":"category-artigos","8":"tag-escolha","9":"tag-importancia","10":"tag-otdr","11":"tag-ronaldo-couto","12":"post_format-post-format-image"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>OTDR - Import\u00e2ncia e Crit\u00e9rios de Escolha - ISP Blog<\/title>\n<meta name=\"description\" content=\"Artigo &quot;OTDR - Import\u00e2ncia e Crit\u00e9rios de Escolha \u2013 Por: Ronaldo Couto&quot;. 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