{"id":21623,"date":"2026-08-09T13:59:01","date_gmt":"2026-08-09T05:59:01","guid":{"rendered":"https:\/\/www.luleey.com\/?p=21623"},"modified":"2026-08-09T14:00:04","modified_gmt":"2026-08-09T06:00:04","slug":"what-is-ddm-dom-in-sfp-transceivers","status":"publish","type":"post","link":"https:\/\/www.luleey.com\/pt\/what-is-ddm-dom-in-sfp-transceivers\/","title":{"rendered":"O que \u00e9 DDM\/DOM em transceptores SFP"},"content":{"rendered":"<p class=\"wp-block-wd-paragraph wd-3ad4157e\">Se voc\u00ea j\u00e1 retirou um m\u00f3dulo SFP ou SFP+ de um switch, talvez tenha visto algo assim:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Temperatura: <strong>48 \u00b0C<\/strong><\/li>\n\n\n\n<li>Tens\u00e3o: <strong>3,29 V<\/strong><\/li>\n\n\n\n<li>TX Power: <strong>-2,5 dBm<\/strong><\/li>\n\n\n\n<li>Pot\u00eancia do RX: <strong>-8,1 dBm<\/strong><\/li>\n\n\n\n<li>Corrente de polariza\u00e7\u00e3o: <strong>32 mA<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-a717e699\">O que s\u00e3o todos esses n\u00fameros?<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-ff7cf504\">Elas v\u00eam de um recurso muito \u00fatil chamado <strong>DDM<\/strong> ou <strong>DOM<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-7e859c40\">Em termos simples:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-ebd34a48\"><strong>O DDM\/DOM permite que um transceptor SFP forne\u00e7a informa\u00e7\u00f5es sobre seu funcionamento em tempo real.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-0833849f\">Em vez de tentar adivinhar se um SFP est\u00e1 superaquecendo ou se o sinal de fibra est\u00e1 muito fraco, voc\u00ea pode verificar os dados reais fornecidos pelo m\u00f3dulo.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-cd0fbb61\">Isso faz com que <strong><a style=\"color: #FF6A00;\" target=\"_blank\" href=\"https:\/\/www.luleey.com\/pt\/tag\/sfp-ddm\/\" title=\"Ver todas as publica\u00e7\u00f5es em SFP DDM\">SFP DDM<\/a><\/strong> especialmente \u00fatil na resolu\u00e7\u00e3o de problemas em links de fibra \u00f3ptica.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-15158aeb\"><strong>O que significa DDM?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-eca73230\"><strong>DDM<\/strong> significa:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-9a98a9a9\"><strong>Monitoramento Diagn\u00f3stico Digital<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-fcc25c56\">Voc\u00ea tamb\u00e9m pode conferir:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-bab8e387\"><strong>DOM \u2014 Monitoramento \u00d3ptico Digital<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d21a9417\">Diferentes fabricantes podem usar uma terminologia ligeiramente diferente, mas, no dia a dia das redes, ambos os termos geralmente se referem \u00e0 capacidade de ler informa\u00e7\u00f5es de diagn\u00f3stico em tempo real de um <a style=\"color: #FF6A00;\" target=\"_blank\" href=\"https:\/\/www.luleey.com\/pt\/tag\/optical-transceiver\/\" title=\"Ver todas as publica\u00e7\u00f5es sobre transceptores \u00f3pticos\">transceptor \u00f3ptico<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-b43fc751\">A especifica\u00e7\u00e3o SFF-8472 define o monitoramento de diagn\u00f3stico digital para m\u00f3dulos SFP+. Quando implementada, o m\u00f3dulo monitora cinco par\u00e2metros principais:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Temperatura<\/li>\n\n\n\n<li>Tens\u00e3o de alimenta\u00e7\u00e3o<\/li>\n\n\n\n<li>Corrente de polariza\u00e7\u00e3o do laser<\/li>\n\n\n\n<li>Pot\u00eancia \u00f3ptica do TX<\/li>\n\n\n\n<li>Pot\u00eancia \u00f3ptica RX<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-e7f78494\">Al\u00e9m disso, define limites de aviso e de alarme para esses valores de diagn\u00f3stico.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-7214b53a\">Ent\u00e3o, se voc\u00ea vir:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-9ab0439c\"><strong>DDM: Sim<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-7108e76f\">ou<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-f78c656b\"><strong>Compat\u00edvel com DOM<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-eceb9918\">Na p\u00e1gina de um produto SFP, geralmente \u00e9 isso que significa.<\/p>\n\n\n\n<div class=\"wp-block-wd-divider wd-style-line wd-803d68ed\"><\/div>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-96b8c5f2\"><strong>O que o SFP DDM\/DOM pode monitorar?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-bf2c94af\">Aqui est\u00e1 a vers\u00e3o simplificada:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Par\u00e2metro DDM<\/strong><\/td><td><strong>O que isso indica?<\/strong><\/td><\/tr><\/thead><tbody><tr><td>Temperatura<\/td><td>Qual \u00e9 a temperatura do m\u00f3dulo SFP?<\/td><\/tr><tr><td>Tens\u00e3o<\/td><td>Se o m\u00f3dulo est\u00e1 recebendo a tens\u00e3o de alimenta\u00e7\u00e3o normal<\/td><\/tr><tr><td>Pot\u00eancia TX<\/td><td>Qual \u00e9 a pot\u00eancia \u00f3ptica que o m\u00f3dulo est\u00e1 transmitindo<\/td><\/tr><tr><td>RX Power<\/td><td>Qual \u00e9 a pot\u00eancia \u00f3ptica que o m\u00f3dulo est\u00e1 recebendo<\/td><\/tr><tr><td>Corrente de polariza\u00e7\u00e3o<\/td><td>Com que intensidade o laser est\u00e1 sendo acionado<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-794ce009\">A implementa\u00e7\u00e3o do DOM da Cisco tamb\u00e9m monitora esses mesmos cinco par\u00e2metros. <\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-fb037b05\">Para usu\u00e1rios comuns, n\u00e3o \u00e9 preciso assistir aos cinco todos os dias.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-6eaf4a59\">Os tr\u00eas valores mais \u00fateis costumam ser:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-1d886168\"><strong>Temperatura + Pot\u00eancia de transmiss\u00e3o + Pot\u00eancia de recep\u00e7\u00e3o<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-7585bdad\">Vamos analis\u00e1-los um por um.<\/p>\n\n\n\n<div class=\"wp-block-wd-divider wd-style-line wd-dec1b805\"><\/div>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d740a4d3\"><strong>1. Temperatura do SFP: meu m\u00f3dulo est\u00e1 muito quente?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-06fd580c\">A temperatura \u00e9 provavelmente o valor do DDM mais f\u00e1cil de entender.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d50a944a\">Por exemplo:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-3dc9c897\">Temperatura: 55 \u00b0C<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-ecf9d630\">55 \u00b0C parece quente.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-27df5b9a\">E se voc\u00ea tocar no m\u00f3dulo SFP, provavelmente <strong>d\u00e1 uma sensa\u00e7\u00e3o de muito calor<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-3383a9f2\">Mas isso n\u00e3o significa automaticamente que o m\u00f3dulo esteja superaquecendo.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-2365f744\">Muitos transceptores SFP e SFP+ s\u00e3o projetados para operar em temperaturas internas relativamente altas.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-989b797a\">O importante n\u00e3o \u00e9:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-b9c757ae\">\u201cEst\u00e1 quente quando eu toco nisso?\u201d<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-2a647501\">A pergunta mais adequada \u00e9:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-5a0e9bbd\"><strong>\u201cA temperatura ainda est\u00e1 dentro da faixa de opera\u00e7\u00e3o especificada para o m\u00f3dulo?\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-f98d396f\">O DDM fornece um n\u00famero real, em vez de depender da sua estimativa.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-9d278281\">Isso se torna especialmente \u00fatil com <strong>M\u00f3dulos SFP+ de 10G<\/strong>, que pode ficar visivelmente quente durante o funcionamento.<\/p>\n\n\n\n<div class=\"wp-block-wd-divider wd-style-line wd-0a94b2b4\"><\/div>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-1202cf21\"><strong>2. O que \u00e9 a TX Power?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-4dd6f1f3\"><strong>TX = Transmiss\u00e3o<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-6b3a15c1\">O TX Power indica a pot\u00eancia \u00f3ptica que est\u00e1 sendo transmitida pelo m\u00f3dulo.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d6080e11\">Pense no SFP como uma lanterna.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-f9decccd\"><strong>Pot\u00eancia (TX) = a intensidade com que a lanterna emite luz.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-28828cab\">Por exemplo:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-3c94c595\">Pot\u00eancia de transmiss\u00e3o: -2,3 dBm<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d169b1ac\">-2,3 dBm \u00e9 um bom valor?<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-798183a8\">Talvez.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-7af08ce4\">Voc\u00ea precisa comparar isso com as especifica\u00e7\u00f5es do seu transceptor espec\u00edfico.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-44cb0950\">Um m\u00f3dulo 10GBASE-SR, um m\u00f3dulo 10GBASE-LR e um SFP+ de longa dist\u00e2ncia de 80 km podem apresentar especifica\u00e7\u00f5es \u00f3pticas muito diferentes.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-ecffdf31\">Isso significa que n\u00e3o existe um \u00fanico valor de TX Power que seja correto para todos os SFPs.<\/p>\n\n\n\n<div class=\"wp-block-wd-divider wd-style-line wd-44311659\"><\/div>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-aea6265e\"><strong>3. O que \u00e9 o RX Power?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-bc356adf\"><strong>RX = Recep\u00e7\u00e3o<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-bd7c7e12\">O RX Power indica qual \u00e9 a pot\u00eancia \u00f3ptica que realmente chega ao receptor.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-e9b5dd90\">Para a resolu\u00e7\u00e3o de problemas, essa costuma ser uma das <strong>Valores DDM mais \u00fateis para SFP<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-cc9d3fc4\">Vamos usar um exemplo simples.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-ca59cc8b\">Seu SFP indica:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-c17eb345\">Pot\u00eancia de transmiss\u00e3o: -2,0 dBm<br>Pot\u00eancia de recep\u00e7\u00e3o: -7,5 dBm<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-c6759538\">O SFP remoto est\u00e1 enviando luz, mas parte da pot\u00eancia \u00f3ptica \u00e9 naturalmente perdida ao atravessar:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Fibra<\/li>\n\n\n\n<li>Conectores<\/li>\n\n\n\n<li>Adaptadores<\/li>\n\n\n\n<li>Emendas<\/li>\n\n\n\n<li>Pain\u00e9is de conex\u00e3o<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-e3e252be\">Isso \u00e9 normal.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-c3012d93\">Mas imagine que o RX Power mude repentinamente de:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-1b949b07\">-7,5 dBm<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-a9987593\">para:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-31dfec25\">-18,5 dBm<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-7eeb4d7d\">Agora, pode ser que haja algum problema.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-6c48eb7e\">As poss\u00edveis causas incluem:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Conector de fibra sujo<\/li>\n\n\n\n<li>Conector solto<\/li>\n\n\n\n<li>Flex\u00e3o excessiva da fibra<\/li>\n\n\n\n<li>Fibra danificada<\/li>\n\n\n\n<li>Excesso de emendas<\/li>\n\n\n\n<li>Longa dist\u00e2ncia de transmiss\u00e3o<\/li>\n\n\n\n<li>Divisor \u00f3ptico incorreto<\/li>\n\n\n\n<li>Tipo de transceptor incorreto<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-e6a6b88b\">\u00c9 por isso que <strong>Monitoramento da alimenta\u00e7\u00e3o de recep\u00e7\u00e3o do SFP<\/strong> pode economizar muito tempo na resolu\u00e7\u00e3o de problemas.<\/p>\n\n\n\n<div class=\"wp-block-wd-divider wd-style-line wd-88761a57\"><\/div>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-87fe9bac\"><strong>Por que os valores da pot\u00eancia \u00f3ptica s\u00e3o negativos?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-15589ee0\">Isso confunde quase todos os iniciantes.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-826ca1ce\">Voc\u00ea pode ver:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>-3 dBm<\/li>\n\n\n\n<li>-8 dBm<\/li>\n\n\n\n<li>-15 dBm<\/li>\n\n\n\n<li>-25 dBm<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-5774003a\">e pense:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-e5488388\">\u201cNegativo significa ruim, certo?\u201d<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-9eb102d8\">N\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-7e885119\">Valores negativos em dBm s\u00e3o totalmente normais em redes de fibra \u00f3ptica.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-9b95d16c\">Uma regra simples para se lembrar \u00e9:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d3f0044f\"><strong>Quanto mais pr\u00f3ximo o valor estiver de 0 dBm, mais forte ser\u00e1 a pot\u00eancia \u00f3ptica.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-20e46796\">Por exemplo:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-22369f91\"><strong>-5 dBm \u00e9 mais forte do que -15 dBm.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-2485deb1\">E:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-c9a97e5b\"><strong>-15 dBm \u00e9 mais forte do que -25 dBm.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-b31a3723\">Mas mais forte nem sempre significa melhor.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-2a19018e\">Se a pot\u00eancia do receptor for <strong>muito forte<\/strong>, o receptor tamb\u00e9m pode entrar em sobrecarga.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-27b5898c\">Portanto, a abordagem correta \u00e9 sempre:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-27bb9a81\"><strong>Compare a pot\u00eancia RX atual com os valores m\u00ednimo e m\u00e1ximo de RX especificados para o seu SFP.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-wd-divider wd-style-line wd-c6c921da\"><\/div>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-a0f64266\"><strong>Um simples <a style=\"color: #FF6A00;\" target=\"_blank\" href=\"https:\/\/www.luleey.com\/pt\/tag\/fiber-troubleshooting\/\" title=\"Ver todas as publica\u00e7\u00f5es sobre solu\u00e7\u00e3o de problemas com fibra \u00f3ptica\">solu\u00e7\u00e3o de problemas com fibra \u00f3ptica<\/a> Exemplo<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-e349650d\">Imagine que sua conex\u00e3o de fibra de 10G se desconecte aleatoriamente v\u00e1rias vezes por dia.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-0bfa8695\">Sem o DDM, voc\u00ea pode tentar o seguinte:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d36bdfb4\">Troque o cabo de fibra \u00f3ptica.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-b24f91d9\">Ainda est\u00e1 desconectando.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-4f010d46\">Troque o SFP.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-7d94981a\">Ainda est\u00e1 desconectando.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-1dc220c0\">Altere a porta do switch.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-84184cb6\">Ainda est\u00e1 desconectando.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-8ef46304\">Reinicie tudo.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-cc9f6b75\">Ainda est\u00e1 desconectando.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-5ba48940\">N\u00e3o \u00e9 muito eficiente.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-c082bea1\">Agora verifique o DDM:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Par\u00e2metro<\/strong><\/td><td><strong>Leitura<\/strong><\/td><\/tr><\/thead><tbody><tr><td>Temperatura<\/td><td>47 \u00b0C<\/td><\/tr><tr><td>Tens\u00e3o<\/td><td>3,30 V<\/td><\/tr><tr><td>Pot\u00eancia TX<\/td><td>-2,1 dBm<\/td><\/tr><tr><td>RX Power<\/td><td>-17,8 dBm<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-f1de043c\">Suponha que a especifica\u00e7\u00e3o do SFP determine que o n\u00edvel de seu receptor n\u00e3o deve ficar abaixo de aproximadamente -14 dBm.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-6cb82a3d\">Agora voc\u00ea tem uma pista importante:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-77134c40\"><strong>O sinal \u00f3ptico recebido est\u00e1 muito fraco.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d726f2fe\">Em vez de trocar o interruptor, voc\u00ea deve verificar:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-eff2f06d\"><strong>Fibra \u2192 conectores \u2192 pain\u00e9is de conex\u00e3o \u2192 emendas \u2192 perda de sinal<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-e71b2f05\">Esse \u00e9 o verdadeiro valor do DDM.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d47dabf4\">Isso muda:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-5ebc0266\"><strong>\u201cMinha conex\u00e3o de fibra \u00f3ptica n\u00e3o est\u00e1 funcionando.\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-15afb42f\">para:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-28bb1354\"><strong>\u201cA gradua\u00e7\u00e3o da minha lente \u00e9 muito baixa.\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-352575b7\">\u00c9 muito mais f\u00e1cil resolver problemas.<\/p>\n\n\n\n<div class=\"wp-block-wd-divider wd-style-line wd-94222b96\"><\/div>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-33bd86b5\"><strong>4. O que \u00e9 corrente de polariza\u00e7\u00e3o do laser?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-4daa6c3b\">A corrente de polariza\u00e7\u00e3o do laser \u00e9 normalmente exibida em <strong>mA<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d632e3a8\">Por exemplo:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-bbcfa01c\">Corrente de polariza\u00e7\u00e3o: 31,6 mA<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-a5054cd9\">A maneira mais f\u00e1cil de entender isso \u00e9:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-1d2fe79a\"><strong>A corrente de polariza\u00e7\u00e3o indica a quantidade de corrente que est\u00e1 sendo utilizada para acionar o laser do SFP.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-08cf7ab2\">No dia a dia, para resolver problemas, geralmente n\u00e3o \u00e9 preciso dar muita aten\u00e7\u00e3o a isso.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-dbfc8651\">No entanto, isso pode ser \u00fatil no diagn\u00f3stico de um m\u00f3dulo \u00f3ptico envelhecido ou com anomalias.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-54079aef\">Por exemplo, ao longo de um per\u00edodo prolongado, voc\u00ea pode perceber que:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-b6ee901a\"><strong>Corrente de polariza\u00e7\u00e3o \u2191<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-ef163eaa\">enquanto:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-add890f4\"><strong>TX Power \u2193<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-37863012\">Isso pode ser um ind\u00edcio que vale a pena investigar, pois o laser pode estar trabalhando com maior intensidade, embora produza menos sa\u00edda \u00f3ptica.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-19caa112\">Uma \u00fanica medi\u00e7\u00e3o, por si s\u00f3, geralmente n\u00e3o diz muita coisa.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-9a6f99d3\"><strong>As mudan\u00e7as ao longo do tempo s\u00e3o mais \u00fateis.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-wd-divider wd-style-line wd-4b84db0f\"><\/div>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-8d0fc77f\"><strong>5. O que significa \u201ctens\u00e3o SFP\u201d?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-1d31cbac\">Os m\u00f3dulos SFP normalmente operam a partir de aproximadamente um <strong>Alimenta\u00e7\u00e3o de 3,3 V<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-0295a6f7\">O DDM permite que o m\u00f3dulo monitore essa tens\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-4caf5561\">Por exemplo:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-e208f743\">Tens\u00e3o: 3,29 V<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-a51bc65e\">Na maioria dos problemas com fibra \u00f3ptica, a tens\u00e3o n\u00e3o \u00e9 a primeira coisa que voc\u00ea precisa verificar.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-bc30b2de\">Mas, se a tens\u00e3o ficar fora do normal, isso pode ajudar a identificar:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Problemas com as portas do switch<\/li>\n\n\n\n<li>Problemas com a fonte de alimenta\u00e7\u00e3o<\/li>\n\n\n\n<li>Falhas no transceptor<\/li>\n\n\n\n<li>Problemas de compatibilidade de hardware<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-8fdca0f3\">Mais uma vez, compare a leitura com os limites especificados no m\u00f3dulo.<\/p>\n\n\n\n<div class=\"wp-block-wd-divider wd-style-line wd-2d535c9e\"><\/div>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-12368dce\"><strong>O que s\u00e3o \u201cAlarme Alto\u201d e \u201cAlarme Baixo\u201d?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-3cebd04f\">O DDM pode fazer mais do que apenas exibir n\u00fameros.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-ff0a39f8\">Os m\u00f3dulos tamb\u00e9m podem conter limites de diagn\u00f3stico.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-1bf73c3c\">Voc\u00ea pode ver:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Alarme Alto<\/li>\n\n\n\n<li>Alerta de alto risco<\/li>\n\n\n\n<li>Aviso de n\u00edvel baixo<\/li>\n\n\n\n<li>Alarme de n\u00edvel baixo<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-a1111e21\">Por exemplo:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Par\u00e2metro<\/strong><\/td><td><strong>Atual<\/strong><\/td><td><strong>Alarme de n\u00edvel baixo<\/strong><\/td><td><strong>Alarme Alto<\/strong><\/td><\/tr><\/thead><tbody><tr><td>Temperatura<\/td><td>48 \u00b0C<\/td><td>-5 \u00b0C<\/td><td>75 \u00b0C<\/td><\/tr><tr><td>Pot\u00eancia TX<\/td><td>-2,5 dBm<\/td><td>-8 dBm<\/td><td>+1 dBm<\/td><\/tr><tr><td>RX Power<\/td><td>-8,1 dBm<\/td><td>-14 dBm<\/td><td>+0,5 dBm<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-fcf9b519\"><strong>Esses n\u00fameros s\u00e3o apenas um exemplo.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-01a66cd2\">Cada transceptor pode ter limites diferentes.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-a2cc4630\">A especifica\u00e7\u00e3o SFF-8472 exige limites de alarme e aviso quando \u00e9 implementado o monitoramento diagn\u00f3stico digital. <\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-e9ff6548\">Por isso, alguns switches podem exibir avisos como:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-061525d0\"><strong>Aviso de bateria fraca do RX Power<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-68d7e519\">ou:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-62d236eb\"><strong>Alarme de temperatura alta<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-69dcb12d\">em vez de fazer com que voc\u00ea compare manualmente cada valor.<\/p>\n\n\n\n<div class=\"wp-block-wd-divider wd-style-line wd-c2d02ca5\"><\/div>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-029baf1e\"><strong>Como posso verificar se um SFP \u00e9 do tipo DDM ou DOM?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-b506e038\">Isso depende do seu switch, roteador ou placa de rede.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-f008603c\">Por exemplo, muitos dispositivos da Cisco suportam comandos como:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d692bdc5\">mostrar interfaces do transceptor<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-adb0543d\">ou:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-76d17ac6\">show interfaces transceiver detail<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-3de4fb72\">A sa\u00edda do comando da Cisco pode exibir:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-9bdb3b3f\"><strong>Temperatura, tens\u00e3o, corrente de polariza\u00e7\u00e3o, pot\u00eancia de transmiss\u00e3o e pot\u00eancia de recep\u00e7\u00e3o<\/strong> diretamente dos transceptores compat\u00edveis. <\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-96949adf\">Outros fabricantes podem apresentar as mesmas informa\u00e7\u00f5es por meio de:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>CLI<\/li>\n\n\n\n<li>Interface de gerenciamento da Web<\/li>\n\n\n\n<li>SNMP<\/li>\n\n\n\n<li>Controlador de rede<\/li>\n\n\n\n<li>Software de monitoramento<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-f60dc105\">A MikroTik, a Ubiquiti, a Huawei, a H3C e outros fornecedores podem utilizar menus ou comandos diferentes.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-2fb94862\">O importante \u00e9:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-ce06c7da\"><strong>O SFP deve ser compat\u00edvel com DDM, e o dispositivo host tamb\u00e9m deve ser compat\u00edvel com a leitura desse formato.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-wd-divider wd-style-line wd-bae29f97\"><\/div>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-04cc6029\"><strong>Meu SFP \u00e9 compat\u00edvel com DDM, mas n\u00e3o consigo visualizar nenhum dado. Por qu\u00ea?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-faa12603\">Isso acontece com bastante frequ\u00eancia.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-aec00220\">Entre as poss\u00edveis raz\u00f5es est\u00e3o:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>O switch n\u00e3o oferece suporte ao DOM nessa porta<\/li>\n\n\n\n<li>Na verdade, o SFP n\u00e3o oferece suporte ao DDM<\/li>\n\n\n\n<li>O firmware do switch n\u00e3o divulga informa\u00e7\u00f5es do DDM<\/li>\n\n\n\n<li>As informa\u00e7\u00f5es do transceptor de terceiros n\u00e3o s\u00e3o totalmente reconhecidas<\/li>\n\n\n\n<li>O m\u00f3dulo EEPROM n\u00e3o pode ser lido corretamente<\/li>\n\n\n\n<li>O monitoramento est\u00e1 desativado<\/li>\n\n\n\n<li>O dispositivo tem restri\u00e7\u00f5es de compatibilidade<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-8842c9f7\">Ent\u00e3o:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-98b1bf23\"><strong>O suporte a DDM no SFP n\u00e3o significa automaticamente que todos os switches possam exibir essas informa\u00e7\u00f5es.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d04d81b6\">Ambos os lados precisam apoiar essa iniciativa.<\/p>\n\n\n\n<div class=\"wp-block-wd-divider wd-style-line wd-e2d6c4af\"><\/div>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-65ff46fc\"><strong>\u00c9 poss\u00edvel monitorar o DDM por meio do SNMP?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-88698c38\">Sim, em equipamentos compat\u00edveis.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-30bc160f\">Isso \u00e9 especialmente \u00fatil para redes maiores.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-f2984910\">Em vez de acessar manualmente cada switch, um sistema de monitoramento de rede pode usar o SNMP para coletar informa\u00e7\u00f5es sobre os transceptores.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-fc7a88cd\">A Cisco, por exemplo, documenta o monitoramento do DOM MIB para transceptores \u00f3pticos SFP, incluindo temperatura, tens\u00e3o, corrente de polariza\u00e7\u00e3o do laser, pot\u00eancia \u00f3ptica de transmiss\u00e3o (TX) e pot\u00eancia \u00f3ptica de recep\u00e7\u00e3o (RX). <a href=\"https:\/\/www.cisco.com\/c\/en\/us\/td\/docs\/switches\/lan\/cisco_ie3010\/software\/release\/15-2_2_e\/configuration\/guide\/SwCfg\/swsnmp.pdf?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">Cisco<\/a><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-01389811\">Isso significa que voc\u00ea pode monitorar dezenas ou centenas de interfaces \u00f3pticas e receber alertas quando ocorrer alguma altera\u00e7\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-eb3246d3\">Por exemplo:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-5e6d3464\"><strong>Pot\u00eancia normal de recep\u00e7\u00e3o: -7 dBm<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-de017aa8\">V\u00e1rios meses depois:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d478c1dd\"><strong>Pot\u00eancia de recep\u00e7\u00e3o: -10 dBm<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d27aba3b\">Mais tarde:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-12b257b4\"><strong>Pot\u00eancia de recep\u00e7\u00e3o: -13 dBm<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-021d6f8f\">O link pode ainda estar no ar, mas a tend\u00eancia mostra que:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-07168baa\">Algo no caminho \u00f3ptico est\u00e1 piorando.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-0a430b78\">Isso pode ajudar voc\u00ea a resolver um problema <strong>antes que o link de fibra realmente pare de funcionar<\/strong>.<\/p>\n\n\n\n<div class=\"wp-block-wd-divider wd-style-line wd-63e2b5ac\"><\/div>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-9677756e\"><strong>Todos os SFPs s\u00e3o compat\u00edveis com DDM?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-25ea59e9\">N\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-53f9fa15\">Muitos transceptores \u00f3pticos modernos do tipo SFP e SFP+ s\u00e3o compat\u00edveis com DDM, mas nem todos os m\u00f3dulos o s\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-a0c373a7\">Ao comprar um transceptor \u00f3ptico, procure por termos como:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-806a03b7\"><strong>DDM<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-95a6a0d4\"><strong>DOM<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-382ade8a\"><strong>Diagn\u00f3stico digital<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-498e0959\"><strong>SFF-8472<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-57e39e97\">Lembre-se tamb\u00e9m de que um <strong>SFP de cobre RJ45<\/strong> \u00e9 diferente de um transceptor \u00f3ptico.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-8a5ef30b\">Um m\u00f3dulo Ethernet de cobre n\u00e3o possui pot\u00eancia de transmiss\u00e3o (TX) ou pot\u00eancia de recep\u00e7\u00e3o (RX) \u00f3ptica, pois n\u00e3o transmite luz pela fibra.<\/p>\n\n\n\n<div class=\"wp-block-wd-divider wd-style-line wd-8bc4564b\"><\/div>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-8cbc3dfe\"><strong>O DDM pode substituir um medidor de pot\u00eancia \u00f3ptica?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-da2392bc\">N\u00e3o totalmente.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-1cdb887e\">O DDM \u00e9 excelente para:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Solu\u00e7\u00e3o r\u00e1pida de problemas<\/li>\n\n\n\n<li>Monitoramento remoto<\/li>\n\n\n\n<li>Verifica\u00e7\u00e3o da pot\u00eancia de recep\u00e7\u00e3o<\/li>\n\n\n\n<li>Verifica\u00e7\u00e3o da pot\u00eancia de transmiss\u00e3o<\/li>\n\n\n\n<li>Monitoramento da temperatura do SFP<\/li>\n\n\n\n<li>Acompanhando as tend\u00eancias de longo prazo<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-8b5bfa99\">Mas um externo <strong>medidor de pot\u00eancia \u00f3ptica<\/strong> ainda \u00e9 \u00fatil quando se deseja medir o sinal \u00f3ptico de forma independente.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-289e523a\">Uma maneira bem simples de entender a diferen\u00e7a \u00e9:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-628c3d68\"><strong>DDM = o SFP informa o que est\u00e1 detectando.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-8966d722\"><strong>Medidor de pot\u00eancia \u00f3ptica = outro instrumento que mede a luz diretamente.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-94e00670\">Para o monitoramento di\u00e1rio da rede, o DDM \u00e9 extremamente pr\u00e1tico.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-b5f9130c\">Para a instala\u00e7\u00e3o de fibra \u00f3ptica, verifica\u00e7\u00e3o ou diagn\u00f3stico mais aprofundado de problemas, um medidor de pot\u00eancia \u00f3ptica ainda pode ser muito \u00fatil.<\/p>\n\n\n\n<div class=\"wp-block-wd-divider wd-style-line wd-4efbb0b6\"><\/div>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-a5ff8fff\"><strong>DDM x DOM: Existe alguma diferen\u00e7a?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-32708c16\">Para a maioria dos usu\u00e1rios, n\u00e3o h\u00e1 motivo para se preocupar com a terminologia.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-3198d596\"><strong>DDM<\/strong> geralmente significa <strong>Monitoramento Diagn\u00f3stico Digital<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-e803d770\"><strong>DOM<\/strong> \u00e9 comumente usado como <strong>Monitoramento \u00f3ptico digital<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-0dd41d14\">Na resolu\u00e7\u00e3o pr\u00e1tica de problemas com SFPs, ambos os termos s\u00e3o comumente associados \u00e0 leitura dos mesmos par\u00e2metros importantes do transceptor em tempo real:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-a78cdd77\"><strong>Temperatura<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-3953ea6f\"><strong>Tens\u00e3o<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-6a695031\"><strong>Corrente de polariza\u00e7\u00e3o<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-52eb612b\"><strong>Pot\u00eancia TX<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-9d2f29b5\"><strong>RX Power<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-ef7dcde3\">O importante n\u00e3o \u00e9 se a p\u00e1gina do produto indica DDM ou DOM.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-e0fff2d4\">A quest\u00e3o importante \u00e9:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-a7636ee5\"><strong>Posso ler as informa\u00e7\u00f5es de diagn\u00f3stico de que preciso?<\/strong><\/p>\n\n\n\n<div class=\"wp-block-wd-divider wd-style-line wd-46b16e5b\"><\/div>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-88635dd7\"><strong>Resposta final: Por que o DDM\/DOM \u00e9 \u00fatil?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-c15e7474\">Pense em <strong>DDM\/DOM como um pequeno monitor de integridade integrado ao seu transceptor SFP<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d9527737\">Sem isso, voc\u00ea sabe basicamente:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-5b29aed7\"><strong>Link UP<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-8b784052\">ou:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-aacfa8b5\"><strong>Link INATIVO<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-19351933\">Com o DDM, voc\u00ea pode fazer perguntas muito melhores:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-41e55a88\"><strong>Meu SFP est\u00e1 muito quente?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d347bfec\"><strong>O laser est\u00e1 transmitindo normalmente?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-4f292517\"><strong>O sinal de recep\u00e7\u00e3o est\u00e1 ficando mais fraco?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-510fbb51\"><strong>A tens\u00e3o do m\u00f3dulo est\u00e1 anormal?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-ada1ed57\">Isso torna o DDM particularmente \u00fatil para a resolu\u00e7\u00e3o de problemas:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M\u00f3dulos SFP e SFP+<\/li>\n\n\n\n<li>Liga\u00e7\u00f5es de fibra \u00f3ptica de 10G<\/li>\n\n\n\n<li>SFP+ bidirecional<\/li>\n\n\n\n<li>Liga\u00e7\u00f5es \u00f3pticas de longa dist\u00e2ncia<\/li>\n\n\n\n<li>Redes de data center<\/li>\n\n\n\n<li>Equipamentos FTTH\/PON<\/li>\n\n\n\n<li>Redes de fibra \u00f3ptica corporativas<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-dd3798a9\">Se voc\u00ea \u00e9 novo no DDM, lembre-se apenas destes tr\u00eas valores:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-ee87027d\"><strong>Temperatura \u2014 O m\u00f3dulo est\u00e1 muito quente?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-37e711f5\"><strong>TX Power \u2014 O m\u00f3dulo est\u00e1 emitindo luz normalmente?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-24048642\"><strong>Pot\u00eancia do receptor \u2014 A luz que chega ao receptor \u00e9 suficiente?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-b029bffa\">Esses tr\u00eas valores, por si s\u00f3, podem resolver um n\u00famero surpreendente de problemas em redes de fibra \u00f3ptica.<\/p>\n\n\n\n<div class=\"wp-block-wd-divider wd-style-line wd-64f9ac31\"><\/div>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-88e093bf\"><strong>Perguntas frequentes<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-579578f1\"><strong>Daniel pergunta: O DDM \u00e9 a mesma coisa que o DOM?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-178e53db\">Na maioria das aplica\u00e7\u00f5es pr\u00e1ticas de SFP, esses termos s\u00e3o utilizados para se referir ao mesmo tipo de recurso de monitoramento diagn\u00f3stico. DDM geralmente significa Monitoramento Diagn\u00f3stico Digital, enquanto DOM \u00e9 comumente chamado de Monitoramento \u00d3ptico Digital.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-8e783124\"><strong>Michael pergunta: Todos os SFP+ s\u00e3o compat\u00edveis com DDM?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-65791f97\">N\u00e3o. Muitos transceptores \u00f3pticos SFP e SFP+ modernos s\u00e3o compat\u00edveis com DDM, mas alguns m\u00f3dulos mais antigos, de baixo custo ou especializados podem n\u00e3o ser. Verifique sempre as especifica\u00e7\u00f5es do m\u00f3dulo.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-c2a65c81\"><strong>Alex pergunta: Qual \u00e9 o valor DDM mais \u00fatil para um SFP?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-ff5b0048\">Para solucionar problemas relacionados \u00e0 fibra \u00f3ptica, <strong>RX Power<\/strong> costuma ser um dos valores mais \u00fateis, pois indica a intensidade do sinal \u00f3ptico que realmente est\u00e1 chegando ao receptor.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-0a99e6db\"><strong>Thomas pergunta: Por que a pot\u00eancia de recep\u00e7\u00e3o do meu SFP est\u00e1 negativa?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-63e078ec\">Isso \u00e9 normal. A pot\u00eancia \u00f3ptica \u00e9 comumente expressa em dBm. Por exemplo, -5 dBm \u00e9 mais forte do que -15 dBm. Sempre compare o valor medido com a faixa de recep\u00e7\u00e3o especificada para o seu transceptor.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-8dc10110\"><strong>Kevin pergunta: O DDM consegue detectar um conector de fibra sujo?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-59d70ae8\">N\u00e3o diretamente. No entanto, um conector sujo pode causar perda \u00f3ptica adicional, o que pode se manifestar como um n\u00edvel de pot\u00eancia de recep\u00e7\u00e3o (RX Power) anormalmente baixo. Se a pot\u00eancia de recep\u00e7\u00e3o cair repentinamente, inspecionar e limpar os conectores de fibra \u00e9 uma boa medida para solucionar o problema.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-efe82353\"><strong>James pergunta: Um SFP+ BiDi \u00e9 compat\u00edvel com DDM?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-5d095bbb\">Muitos m\u00f3dulos SFP+ BiDi s\u00e3o compat\u00edveis com DDM. Quando compat\u00edveis, eles normalmente podem fornecer as mesmas informa\u00e7\u00f5es diagn\u00f3sticas essenciais, como temperatura, pot\u00eancia de transmiss\u00e3o (TX), pot\u00eancia de recep\u00e7\u00e3o (RX), tens\u00e3o e corrente de polariza\u00e7\u00e3o.<\/p>\n\n\n\n<div class=\"wp-block-wd-section wd-e54e287f\">\n<div class=\"wp-block-wd-container wd-dir-col wd-align wd-58499612\">\n<h2 class=\"wp-block-wd-title title wd-design-underlined wd-ed5f6cf8\"><span>Produtos relacionados<\/span><\/h2>\n\n\n\t\t\t\n\t\t\t<div id=\"carousel-142\" class=\"wd-carousel-container  wd-cb327014 wd-products-element wd-products products wd-loop-builder-off title-line-two\">\n\t\t\t\t\n\t\t\t\t\t\t\t\n\t\t\t\t<div class=\"wd-carousel-inner\">\n\t\t\t\t\t<div class=\"wd-carousel wd-grid\" data-scroll_per_page=\"yes\" style=\"--wd-col-lg:3;--wd-col-md:3;--wd-col-sm:2;--wd-gap-lg:20px;--wd-gap-sm:10px;\">\n\t\t\t\t\t\t<div class=\"wd-carousel-wrap\">\n\t\t\t\t\t\t\t\t\t<div class=\"wd-carousel-item\">\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"wd-product wd-hover-quick product-grid-item product type-product post-20921 status-publish instock product_cat-sfp-sfp-1g-2-5g-5g-10g product_tag-10g product_tag-10g-sfp product_tag-bidi product_tag-bidi-transceiver product_tag-ddm product_tag-lc product_tag-optical-module product_tag-sfp-module product_tag-sfp product_tag-single-mode-fiber product_tag-wdm has-post-thumbnail featured shipping-taxable purchasable product-type-variable has-default-attributes\" data-loop=\"1\" data-id=\"20921\">\n\t\n<div class=\"wd-product-wrapper product-wrapper\">\n\t<div class=\"wd-product-thumb product-element-top wd-quick-shop\">\n\t\t<a href=\"https:\/\/www.luleey.com\/pt\/produto\/ll-sfp-10g-bx20-10g-bidi-sfp-transceiver-20km-lc-smf-ddm\/\" class=\"wd-product-img-link product-image-link\" tabindex=\"-1\" aria-label=\"LL-SFP-10G-BX20 Transceptor SFP+ BiDi de 10 Gb\/s, 20 km, LC, SMF, DDM\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" src=\"https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/LL-SFP-10G-BX20-4-400x400.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"\" srcset=\"https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/LL-SFP-10G-BX20-4-400x400.jpg 400w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/LL-SFP-10G-BX20-4-800x800.jpg 800w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/LL-SFP-10G-BX20-4-1600x1600.jpg 1600w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/LL-SFP-10G-BX20-4-768x768.jpg 768w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/LL-SFP-10G-BX20-4-1536x1536.jpg 1536w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/LL-SFP-10G-BX20-4-12x12.jpg 12w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/LL-SFP-10G-BX20-4-1200x1200.jpg 1200w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/LL-SFP-10G-BX20-4-150x150.jpg 150w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/LL-SFP-10G-BX20-4.jpg 1770w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" title=\"\">\t\t<\/a>\n\n\t\t\t\t\t<div class=\"product-labels labels-rounded-sm\">\n\t\t\t\t<span class=\"featured product-label wd-shape-round-sm\">Quente<\/span> <span class=\"new product-label wd-shape-round-sm\">Novo<\/span>\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"wd-product-img-hover hover-img\">\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" src=\"https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/LL-SFP-10G-BX60-400x400.png\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"\" srcset=\"https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/LL-SFP-10G-BX60-400x400.png 400w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/LL-SFP-10G-BX60-800x800.png 800w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/LL-SFP-10G-BX60-1600x1600.png 1600w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/LL-SFP-10G-BX60-768x768.png 768w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/LL-SFP-10G-BX60-1536x1536.png 1536w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/LL-SFP-10G-BX60-12x12.png 12w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/LL-SFP-10G-BX60-1200x1200.png 1200w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/LL-SFP-10G-BX60-150x150.png 150w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/LL-SFP-10G-BX60.png 2048w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" title=\"\">\t\t\t<\/div>\n\t\t\t\t\t<div class=\"wd-buttons wd-pos-r-t\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div class=\"wd-add-btn wd-add-btn-replace\">\n\t\t\t\t\n\t\t\t\t<a href=\"https:\/\/www.luleey.com\/pt\/produto\/ll-sfp-10g-bx20-10g-bidi-sfp-transceiver-20km-lc-smf-ddm\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_20921\" data-quantity=\"1\" class=\"button product_type_variable add_to_cart_button add-to-cart-loop\" data-product_id=\"20921\" data-product_sku=\"LL-SFP-10G-BX20\" aria-label=\"Selecione as op\u00e7\u00f5es para \u201cLL-SFP-10G-BX20 10G BiDi SFP+ Transceiver, 20km, LC, SMF, DDM\u201d\" rel=\"nofollow\" data-no-translation-aria-label=\"\"><span class=\"wd-action-icon\"><span class=\"wd-check-icon\"><\/span><\/span><span class=\"wd-action-text\" data-no-translation=\"\" data-trp-gettext=\"\">Ver op\u00e7\u00f5es<\/span><\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_20921\" class=\"screen-reader-text\">\n\t\tEste produto tem v\u00e1rias variantes. As op\u00e7\u00f5es podem ser escolhidas na p\u00e1gina do produto\t<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<h3 class=\"wd-entities-title\"><a href=\"https:\/\/www.luleey.com\/pt\/produto\/ll-sfp-10g-bx20-10g-bidi-sfp-transceiver-20km-lc-smf-ddm\/\">LL-SFP-10G-BX20 Transceptor SFP+ BiDi de 10 Gb\/s, 20 km, LC, SMF, DDM<\/a><\/h3>\n\t\t\t<div class=\"wd-product-cats\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.luleey.com\/pt\/categoria-produto\/optical_module_transceivers\/sfp-sfp-1g-2-5g-5g-10g\/\" rel=\"tag\">SFP\/SFP+ (1G\/2,5G\/5G\/10G)<\/a>\t\t<\/div>\n\t\t\t\t\n\t<span class=\"price\"><span class=\"wmc-cache-pid\" data-wmc_product_id=\"20921\"><span class=\"woocommerce-Price-amount amount\"><bdi><span class=\"woocommerce-Price-currencySymbol\">USD $<\/span>29.99<\/bdi><\/span><\/span><\/span>\n<div id=\"wc-stripe-bnpl-shop-msg-20921\" class=\"wc-stripe-bnpl-shop-message\"><\/div>\n\t<div style=\"margin-left: 1em;\"><span class=\"tagged_as\"  style=\"color: #DF5D00; font-size:12px\">Tags: <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/10g\/\" rel=\"tag\">10G<\/a>, <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/10g-sfp\/\" rel=\"tag\">10G SFP+<\/a>, <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/bidi\/\" rel=\"tag\">BIDI<\/a>, <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/bidi-transceiver\/\" rel=\"tag\">Transceptor BiDi<\/a>, <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/ddm\/\" rel=\"tag\">DDM<\/a>, <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/lc\/\" rel=\"tag\">LC<\/a>, <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/optical-module\/\" rel=\"tag\">M\u00f3dulo \u00f3ptico<\/a>, <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/sfp-module\/\" rel=\"tag\">m\u00f3dulo sfp<\/a>, <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/sfp\/\" rel=\"tag\">SFP+<\/a>, <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/single-mode-fiber\/\" rel=\"tag\">Fibra monomodo<\/a>, <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/wdm\/\" rel=\"tag\">WDM<\/a><\/span><\/div>\n\t\n\t\t<\/div>\n<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"wd-carousel-item\">\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"wd-product wd-hover-quick product-grid-item product type-product post-21055 status-publish instock product_cat-sfp-sfp-1g-2-5g-5g-10g product_tag-10km-sfp product_tag-2-5g-sfp product_tag-bidi-sfp-module product_tag-lc-smf product_tag-optical-module has-post-thumbnail featured shipping-taxable purchasable product-type-variable has-default-attributes\" data-loop=\"2\" data-id=\"21055\">\n\t\n<div class=\"wd-product-wrapper product-wrapper\">\n\t<div class=\"wd-product-thumb product-element-top wd-quick-shop\">\n\t\t<a href=\"https:\/\/www.luleey.com\/pt\/produto\/2-5g-lc-optical-module-bidi-smf-sfp-copy\/\" class=\"wd-product-img-link product-image-link\" tabindex=\"-1\" aria-label=\"M\u00f3dulo SFP BiDi de 2,5G, transceptor LC de modo \u00fanico e fibra \u00fanica, 10 km\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" src=\"https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/c5e06760-ffa4-4c57-8b85-fe9932b1ce58-400x400.png\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"\" srcset=\"https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/c5e06760-ffa4-4c57-8b85-fe9932b1ce58-400x400.png 400w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/c5e06760-ffa4-4c57-8b85-fe9932b1ce58-800x800.png 800w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/c5e06760-ffa4-4c57-8b85-fe9932b1ce58-768x768.png 768w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/c5e06760-ffa4-4c57-8b85-fe9932b1ce58-12x12.png 12w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/c5e06760-ffa4-4c57-8b85-fe9932b1ce58-1200x1200.png 1200w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/c5e06760-ffa4-4c57-8b85-fe9932b1ce58-150x150.png 150w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/c5e06760-ffa4-4c57-8b85-fe9932b1ce58.png 1254w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" title=\"\">\t\t<\/a>\n\n\t\t\t\t\t<div class=\"product-labels labels-rounded-sm\">\n\t\t\t\t<span class=\"featured product-label wd-shape-round-sm\">Quente<\/span> <span class=\"new product-label wd-shape-round-sm\">Novo<\/span>\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"wd-product-img-hover hover-img\">\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" src=\"https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/71c08d62-dcd1-44c3-b672-059f9d284c98-400x400.png\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"\" srcset=\"https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/71c08d62-dcd1-44c3-b672-059f9d284c98-400x400.png 400w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/71c08d62-dcd1-44c3-b672-059f9d284c98-800x800.png 800w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/71c08d62-dcd1-44c3-b672-059f9d284c98-768x768.png 768w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/71c08d62-dcd1-44c3-b672-059f9d284c98-12x12.png 12w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/71c08d62-dcd1-44c3-b672-059f9d284c98-1200x1200.png 1200w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/71c08d62-dcd1-44c3-b672-059f9d284c98-150x150.png 150w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/71c08d62-dcd1-44c3-b672-059f9d284c98.png 1254w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" title=\"\">\t\t\t<\/div>\n\t\t\t\t\t<div class=\"wd-buttons wd-pos-r-t\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div class=\"wd-add-btn wd-add-btn-replace\">\n\t\t\t\t\n\t\t\t\t<a href=\"https:\/\/www.luleey.com\/pt\/produto\/2-5g-lc-optical-module-bidi-smf-sfp-copy\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_21055\" data-quantity=\"1\" class=\"button product_type_variable add_to_cart_button add-to-cart-loop\" data-product_id=\"21055\" data-product_sku=\"LL-SFP-2.5G-BX10\" aria-label=\"Selecione as op\u00e7\u00f5es para \u201c2.5G BiDi SFP Module, LC Single Mode Single Fiber Transceiver, 10km\u201d\" rel=\"nofollow\" data-no-translation-aria-label=\"\"><span class=\"wd-action-icon\"><span class=\"wd-check-icon\"><\/span><\/span><span class=\"wd-action-text\" data-no-translation=\"\" data-trp-gettext=\"\">Ver op\u00e7\u00f5es<\/span><\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_21055\" class=\"screen-reader-text\">\n\t\tEste produto tem v\u00e1rias variantes. As op\u00e7\u00f5es podem ser escolhidas na p\u00e1gina do produto\t<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<h3 class=\"wd-entities-title\"><a href=\"https:\/\/www.luleey.com\/pt\/produto\/2-5g-lc-optical-module-bidi-smf-sfp-copy\/\">M\u00f3dulo SFP BiDi de 2,5G, transceptor LC de modo \u00fanico e fibra \u00fanica, 10 km<\/a><\/h3>\n\t\t\t<div class=\"wd-product-cats\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.luleey.com\/pt\/categoria-produto\/optical_module_transceivers\/sfp-sfp-1g-2-5g-5g-10g\/\" rel=\"tag\">SFP\/SFP+ (1G\/2,5G\/5G\/10G)<\/a>\t\t<\/div>\n\t\t\t\t\n\t<span class=\"price\"><span class=\"wmc-cache-pid\" data-wmc_product_id=\"21055\"><span class=\"woocommerce-Price-amount amount\"><bdi><span class=\"woocommerce-Price-currencySymbol\">USD $<\/span>24.99<\/bdi><\/span><\/span><\/span>\n<div id=\"wc-stripe-bnpl-shop-msg-21055\" class=\"wc-stripe-bnpl-shop-message\"><\/div>\n\t<div style=\"margin-left: 1em;\"><span class=\"tagged_as\"  style=\"color: #DF5D00; font-size:12px\">Tags: <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/10km-sfp\/\" rel=\"tag\">10 km SFP<\/a>, <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/2-5g-sfp\/\" rel=\"tag\">SFP de 2,5G<\/a>, <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/bidi-sfp-module\/\" rel=\"tag\">M\u00f3dulo SFP BiDi<\/a>, <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/lc-smf\/\" rel=\"tag\">LC SMF<\/a>, <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/optical-module\/\" rel=\"tag\">M\u00f3dulo \u00f3ptico<\/a><\/span><\/div>\n\t\n\t\t<\/div>\n<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"wd-carousel-item\">\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"wd-product wd-hover-quick product-grid-item product type-product post-21049 status-publish last instock product_cat-sfp-sfp-1g-2-5g-5g-10g product_tag-1-25g-sfp product_tag-10km-sfp product_tag-bidi-sfp-module product_tag-optical-module product_tag-sc-smf has-post-thumbnail shipping-taxable purchasable product-type-variable has-default-attributes\" data-loop=\"3\" data-id=\"21049\">\n\t\n<div class=\"wd-product-wrapper product-wrapper\">\n\t<div class=\"wd-product-thumb product-element-top wd-quick-shop\">\n\t\t<a href=\"https:\/\/www.luleey.com\/pt\/produto\/1-25g-bidi-sfp-module-gigabit-sc-smf-10km-ddm-transceiver-pair\/\" class=\"wd-product-img-link product-image-link\" tabindex=\"-1\" aria-label=\"M\u00f3dulo SFP BiDi de 1,25 G, par de transceptores Gigabit SC SMF de 10 km DDM\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" src=\"https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/db1a1b64-c7c3-4021-a25e-503a3fe17f75-400x400.png\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"SFP-BX10-SC\" srcset=\"https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/db1a1b64-c7c3-4021-a25e-503a3fe17f75-400x400.png 400w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/db1a1b64-c7c3-4021-a25e-503a3fe17f75-800x800.png 800w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/db1a1b64-c7c3-4021-a25e-503a3fe17f75-768x768.png 768w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/db1a1b64-c7c3-4021-a25e-503a3fe17f75-12x12.png 12w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/db1a1b64-c7c3-4021-a25e-503a3fe17f75-1200x1200.png 1200w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/db1a1b64-c7c3-4021-a25e-503a3fe17f75-150x150.png 150w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/06\/db1a1b64-c7c3-4021-a25e-503a3fe17f75.png 1254w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" title=\"\">\t\t<\/a>\n\n\t\t\t\t\t<div class=\"product-labels labels-rounded-sm\">\n\t\t\t\t<span class=\"new product-label wd-shape-round-sm\">Novo<\/span>\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"wd-product-img-hover hover-img\">\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" src=\"https:\/\/www.luleey.com\/wp-content\/uploads\/2024\/07\/0000-400x400.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"\" srcset=\"https:\/\/www.luleey.com\/wp-content\/uploads\/2024\/07\/0000-400x400.jpg 400w, https:\/\/www.luleey.com\/wp-content\/uploads\/2024\/07\/0000-150x150.jpg 150w, https:\/\/www.luleey.com\/wp-content\/uploads\/2024\/07\/0000-600x600.jpg 600w, https:\/\/www.luleey.com\/wp-content\/uploads\/2024\/07\/0000-768x768.jpg 768w, https:\/\/www.luleey.com\/wp-content\/uploads\/2024\/07\/0000-12x12.jpg 12w, https:\/\/www.luleey.com\/wp-content\/uploads\/2024\/07\/0000.jpg 800w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" title=\"\">\t\t\t<\/div>\n\t\t\t\t\t<div class=\"wd-buttons wd-pos-r-t\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div class=\"wd-add-btn wd-add-btn-replace\">\n\t\t\t\t\n\t\t\t\t<a href=\"https:\/\/www.luleey.com\/pt\/produto\/1-25g-bidi-sfp-module-gigabit-sc-smf-10km-ddm-transceiver-pair\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_21049\" data-quantity=\"1\" class=\"button product_type_variable add_to_cart_button add-to-cart-loop\" data-product_id=\"21049\" data-product_sku=\"SFP-BX10-SC\" aria-label=\"Selecione as op\u00e7\u00f5es para \u201c1.25G BiDi SFP Module, Gigabit SC SMF 10km DDM Transceiver Pair\u201d\" rel=\"nofollow\" data-no-translation-aria-label=\"\"><span class=\"wd-action-icon\"><span class=\"wd-check-icon\"><\/span><\/span><span class=\"wd-action-text\" data-no-translation=\"\" data-trp-gettext=\"\">Ver op\u00e7\u00f5es<\/span><\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_21049\" class=\"screen-reader-text\">\n\t\tEste produto tem v\u00e1rias variantes. As op\u00e7\u00f5es podem ser escolhidas na p\u00e1gina do produto\t<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<h3 class=\"wd-entities-title\"><a href=\"https:\/\/www.luleey.com\/pt\/produto\/1-25g-bidi-sfp-module-gigabit-sc-smf-10km-ddm-transceiver-pair\/\">M\u00f3dulo SFP BiDi de 1,25 G, par de transceptores Gigabit SC SMF de 10 km DDM<\/a><\/h3>\n\t\t\t<div class=\"wd-product-cats\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.luleey.com\/pt\/categoria-produto\/optical_module_transceivers\/sfp-sfp-1g-2-5g-5g-10g\/\" rel=\"tag\">SFP\/SFP+ (1G\/2,5G\/5G\/10G)<\/a>\t\t<\/div>\n\t\t\t\t\n\t<span class=\"price\"><span class=\"wmc-cache-pid\" data-wmc_product_id=\"21049\"><span class=\"woocommerce-Price-amount amount\"><bdi><span class=\"woocommerce-Price-currencySymbol\">USD $<\/span>13.99<\/bdi><\/span><\/span><\/span>\n<div id=\"wc-stripe-bnpl-shop-msg-21049\" class=\"wc-stripe-bnpl-shop-message\"><\/div>\n\t<div style=\"margin-left: 1em;\"><span class=\"tagged_as\"  style=\"color: #DF5D00; font-size:12px\">Tags: <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/1-25g-sfp\/\" rel=\"tag\">SFP de 1,25 G<\/a>, <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/10km-sfp\/\" rel=\"tag\">10 km SFP<\/a>, <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/bidi-sfp-module\/\" rel=\"tag\">M\u00f3dulo SFP BiDi<\/a>, <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/optical-module\/\" rel=\"tag\">M\u00f3dulo \u00f3ptico<\/a>, <a href=\"https:\/\/www.luleey.com\/pt\/produto-tag\/sc-smf\/\" rel=\"tag\">SC SMF<\/a><\/span><\/div>\n\t\n\t\t<\/div>\n<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t<div class=\"wd-nav-arrows wd-pos-sep wd-hover-1 wd-icon-1\">\n\t\t\t<div class=\"wd-btn-arrow wd-prev wd-disabled\">\n\t\t\t\t<div class=\"wd-arrow-inner\"><\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"wd-btn-arrow wd-next\">\n\t\t\t\t<div class=\"wd-arrow-inner\"><\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t<div class=\"wd-nav-pagin-wrap text-center wd-style-shape wd-hide-lg wd-hide-sm\">\n\t\t\t<ul class=\"wd-nav-pagin\"><\/ul>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\n\n\n<a class=\"wp-block-wd-button btn btn-style-default btn-color-primary btn-size-large btn-shape-round wd-83ea51b5\" href=\"#\"><span>Ver todas as ofertas<\/span><\/a>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Par\u00e2metro DDM: O que ele indica? Temperatura: Qu\u00e3o quente est\u00e1 o m\u00f3dulo SFP Tens\u00e3o: Se o m\u00f3dulo est\u00e1 recebendo<\/p>","protected":false},"author":1,"featured_media":21624,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[887],"tags":[1382,1391,1388,1389,1390],"class_list":["post-21623","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-data-transmission-conversion","tag-optical-transceiver","tag-fiber-troubleshooting","tag-sfp-ddm","tag-sfp-dom","tag-sfp-optical-power"],"_links":{"self":[{"href":"https:\/\/www.luleey.com\/pt\/wp-json\/wp\/v2\/posts\/21623","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.luleey.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.luleey.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.luleey.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.luleey.com\/pt\/wp-json\/wp\/v2\/comments?post=21623"}],"version-history":[{"count":1,"href":"https:\/\/www.luleey.com\/pt\/wp-json\/wp\/v2\/posts\/21623\/revisions"}],"predecessor-version":[{"id":21625,"href":"https:\/\/www.luleey.com\/pt\/wp-json\/wp\/v2\/posts\/21623\/revisions\/21625"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.luleey.com\/pt\/wp-json\/wp\/v2\/media\/21624"}],"wp:attachment":[{"href":"https:\/\/www.luleey.com\/pt\/wp-json\/wp\/v2\/media?parent=21623"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.luleey.com\/pt\/wp-json\/wp\/v2\/categories?post=21623"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.luleey.com\/pt\/wp-json\/wp\/v2\/tags?post=21623"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}