{"id":4541,"date":"2025-10-31T11:12:00","date_gmt":"2025-10-31T11:12:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/how-25gbase-sr-works-in-modern-data-centers\/"},"modified":"2026-06-22T05:43:04","modified_gmt":"2026-06-22T05:43:04","slug":"how-25gbase-sr-works-in-modern-data-centers","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/pt\/knowledge-center\/how-25gbase-sr-works-in-modern-data-centers","title":{"rendered":"Como o 25GBASE-SR Funciona nos Data Centers Modernos"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"852\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c14847fbc9c644ac937d61918081b3c9.webp\" alt=\"25GBASE-SR SFP28 Module in Data Centers\" class=\"wp-image-4538\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c14847fbc9c644ac937d61918081b3c9.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c14847fbc9c644ac937d61918081b3c9-300x213.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c14847fbc9c644ac937d61918081b3c9-1024x727.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c14847fbc9c644ac937d61918081b3c9-768x545.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c14847fbc9c644ac937d61918081b3c9-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >\u27a1\ufe0f Introdu\u00e7\u00e3o: Por que o 25GBASE-SR \u00e9 importante<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/476099.htm\"><strong>M\u00f3dulos \u00f3pticos 25GBASE-SR<\/strong><\/a> tornaram-se um bloco construtivo fundamental para a conectividade servidor\u2013switch em ambientes hipercalibrados modernos e corporativos <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/pt\/knowledge-center\/what-is-a-data-center\/\"><strong>centros de dados<\/strong><\/a>. Projetados com base no fator de forma SFP28 e otimizados para <strong>fibras multimodo de curto alcance (MMF)<\/strong>, esses m\u00f3dulos fornecem 25 Gbps por canal \u2014 tornando-os o sucessor natural dos links de 10G e um passo cr\u00edtico rumo a infraestruturas escal\u00e1veis de 100G e 400G.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Projetado para ambientes de alta densidade, o 25GBASE-SR oferece um excelente equil\u00edbrio entre <strong>largura de banda, efici\u00eancia energ\u00e9tica, simplicidade de atualiza\u00e7\u00e3o e custo<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u27a1\ufe0f Padr\u00e3o e fator de forma<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O 25GBASE-SR segue a arquitetura IEEE 802.3 para Ethernet de 25 Gbps e normalmente \u00e9 disponibilizado no <strong>SFP28<\/strong> formato. Os m\u00f3dulos SFP28 mant\u00eam compatibilidade mec\u00e2nica reversa com portas SFP+, ao mesmo tempo que oferecem sinaliza\u00e7\u00e3o el\u00e9trica aprimorada para suportar opera\u00e7\u00e3o a 25 Gbps.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Caracter\u00edsticas principais:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Velocidade:<\/strong> 25 Gbps por lane<\/p><\/li><li><p><strong>Conector:<\/strong> LC duplex<\/p><\/li><li><p><strong>Tipo de fibra:<\/strong> Multimodo (MMF)<\/p><\/li><li><p><strong>Comprimento de onda:<\/strong> ~850 nm<\/p><\/li><li><p><strong>Tipo de laser:<\/strong> Tipo de Laser<\/p><\/li><li><p><strong>Interface:<\/strong> Interface el\u00e9trica do host SFP28<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >\u27a1\ufe0f Tecnologia \u00f3ptica: projeto com VCSEL a 850 nm<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Os m\u00f3dulos 25GBASE-SR transmitem pr\u00f3ximo de <strong>850 nm<\/strong> usando esquemas de <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/pt\/glossary\/overview-of-vcsel\/\"><strong>VCSEL (Laser de Emiss\u00e3o Superficial de Cavidade Vertical)<\/strong><\/a> tecnologia. Os VCSELs oferecem diversas vantagens para infraestruturas de data center de curto alcance:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Alta largura de banda de modula\u00e7\u00e3o para sinaliza\u00e7\u00e3o a 25 Gbps<\/p><\/li><li><p>Boa efici\u00eancia de acoplamento com MMF<\/p><\/li><li><p>Consumo de energia inferior ao de muitas solu\u00e7\u00f5es em modo \u00fanico<\/p><\/li><li><p>Custo reduzido e alto rendimento de fabrica\u00e7\u00e3o<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">O lado receptor normalmente utiliza um fotodiodo PIN para detec\u00e7\u00e3o de alta sensibilidade a 25 Gbps.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u27a1\ufe0f Alcance e tipos de fibra (OM3 \/ OM4 \/ OM5)<\/h2>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 135px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"135\"><p>Tipo de fibra<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Alcance t\u00edpico a 25G<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>SFP (definido pelo MSA)<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"135\"><p>OM3<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~70 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Custo-eficiente para dist\u00e2ncias curtas<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"135\"><p>OM4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~100 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Escolha comum para novas instala\u00e7\u00f5es<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"135\"><p>OM5<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>At\u00e9 ~150 m em implanta\u00e7\u00f5es selecionadas<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>MMF de largura de banda expandida<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">O alcance depende da qualidade da fibra, da perda nos conectores e de se<strong> <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/pt\/glossary\/fec-forward-error-correction-in-optical-communication\/\"><strong>corre\u00e7\u00e3o de erro para frente (FEC)<br><\/strong><\/a> est\u00e1 habilitado no dispositivo host.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u27a1\ufe0f Papel na arquitetura de data center<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >Top-of-Rack (ToR) e malhas Leaf-Spine<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>25GBASE-SR<\/strong> \u00e9 amplamente utilizado para conex\u00f5es ToR de <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/pt\/glossary\/what-is-nic-network-interface-card\/\">NICs para servidores<\/a> servidores a switches leaf. Fornece a largura de banda necess\u00e1ria por n\u00f3s de computa\u00e7\u00e3o ricos em CPU e GPU sem alterar extensivamente as pr\u00e1ticas f\u00edsicas de cabeamento.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Caminho de migra\u00e7\u00e3o: 10G \u2192 25G \u2192 100G<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">As implanta\u00e7\u00f5es de 25G seguem uma evolu\u00e7\u00e3o natural:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 133px;\"\/><col style=\"width: 231px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"133\"><p>Etapa<\/p><\/th><th colspan=\"1\" rowspan=\"1\" colwidth=\"231\"><p>Estrutura t\u00edpica de canal<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Benef\u00edcio<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"133\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26192-10g-sfp.htm\">10G<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"231\"><p>1\u00d710G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Implanta\u00e7\u00f5es legadas<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"133\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26225-25g-sfp28.htm\">25G<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"231\"><p>1\u00d725G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Servidores modernos e switches leaf<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"133\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-27045-100g-qsfp28-sfp-dd.htm\">100G<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"231\"><p>4\u00d725 G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Utiliza os mesmos canais de 25G para uplinks<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Esse alinhamento simplifica a escalabilidade da infraestrutura \u00f3ptica e garante uma estrat\u00e9gia de atualiza\u00e7\u00e3o suave.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u27a1\ufe0f Considera\u00e7\u00f5es sobre desempenho e interoperabilidade<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >FEC e confiabilidade do link<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Muitos switches e NICs contam com <strong>RS-FEC<\/strong> para estender o alcance e manter baixa <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/pt\/glossary\/understanding-what-is-bit-error-rate\/\"><strong>BER (taxa de erro de bit)<\/strong><\/a>. Verifique se sua plataforma exige FEC para alcan\u00e7ar a dist\u00e2ncia m\u00e1xima.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Projeto de pot\u00eancia e t\u00e9rmico<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u00d3pticos SFP28<\/strong> s\u00e3o energeticamente eficientes, mas portas de switch densas ainda exigem planejamento adequado de fluxo de ar. Os operadores devem verificar as classifica\u00e7\u00f5es de pot\u00eancia dos transceptores e os limites t\u00e9rmicos do chassi.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Diagn\u00f3sticos digitais<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A maioria dos m\u00f3dulos 25GBASE-SR suporta <strong>DOM\/DDM<\/strong>, permitindo o monitoramento de temperatura, pot\u00eancia \u00f3ptica, corrente de polariza\u00e7\u00e3o e tens\u00e3o \u2014 \u00fatil para solu\u00e7\u00e3o de problemas e manuten\u00e7\u00e3o preditiva.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u27a1\ufe0f Pr\u00e1ticas recomendadas para implanta\u00e7\u00e3o<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >Utilize o grau correto de fibra<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Para novas implanta\u00e7\u00f5es, <strong>OM4<\/strong> oferece margem ideal e valor de ciclo de vida. <strong>OM3<\/strong> permanece vi\u00e1vel para dist\u00e2ncias curtas dentro do rack ou entre racks adjacentes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Limpe e inspecione os conectores<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Poeira e contamina\u00e7\u00e3o causam perdas e erros \u2014 inspe\u00e7\u00e3o e limpeza devem ser pr\u00e1tica padr\u00e3o em toda instala\u00e7\u00e3o.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Verifique a compatibilidade<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26225-25g-sfp28.htm\"><strong>M\u00f3dulos SFP28<\/strong><\/a> s\u00e3o mecanicamente compat\u00edveis com <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-24689-sfp-cages-connectors.htm\"><strong>SFP+ existentes<\/strong><\/a>, mas o suporte completo a 25G depende do firmware do host e da pol\u00edtica do fornecedor do switch. Valide sempre a compatibilidade.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u27a1\ufe0f Principais casos de uso<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Racks de servidores de alta densidade (computa\u00e7\u00e3o, virtualiza\u00e7\u00e3o, clusters de IA)<\/p><\/li><li><p>Malhas leaf-spine de data center<\/p><\/li><li><p>Data centers de borda e micro data centers<\/p><\/li><li><p>Segmentos de acesso de telecomunica\u00e7\u00f5es e fronthaul 5G, quando aplic\u00e1vel a MMF<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >\u27a1\ufe0f Exemplo de produto: M\u00f3dulo LINK-PP SFP28 25GBASE-SR<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ad1fc9e056854a1abffed59610842559.webp\" alt=\"LINK-PP SFP28 25GBASE-SR\" class=\"wp-image-4539\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ad1fc9e056854a1abffed59610842559.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ad1fc9e056854a1abffed59610842559-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ad1fc9e056854a1abffed59610842559-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ad1fc9e056854a1abffed59610842559-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ad1fc9e056854a1abffed59610842559-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Para implanta\u00e7\u00f5es industriais e em nuvem, o <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/476099.htm\"><strong>LINK-PP LS-MM8525-S1I<\/strong><\/a> m\u00f3dulo SFP28 25GBASE-SR fornece:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Taxa de canal de 25 Gbps<\/p><\/li><li><p>Transmissor VCSEL a 850 nm<\/p><\/li><li><p>interface dupla LC<\/p><\/li><li><p>Alcance em OM3\/OM4 de at\u00e9 ~70 m \/ ~100 m<\/p><\/li><li><p>Monitoramento digital de diagn\u00f3stico (DOM)<\/p><\/li><li><p>Op\u00e7\u00f5es de temperatura para uso industrial<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >\u27a1\ufe0f Perguntas frequentes<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >O 25GBASE-SR \u00e9 compat\u00edvel com SFP+ em modo reverso?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Fisicamente sim, mas dispositivos de 10G n\u00e3o conseguem interpretar um sinal \u00f3ptico de 25G. A plataforma host deve suportar 25 Gbps.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Devo escolher OM3 ou OM4?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">OM3 \u00e9 economicamente vantajoso para dist\u00e2ncias mais curtas; <strong>OM4 \u00e9 recomendado<\/strong> para novas instala\u00e7\u00f5es devido \u00e0 melhor margem e alcance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u27a1\ufe0f Conclus\u00e3o<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>25GBASE-SR<\/strong> oferece um m\u00e9todo eficiente e escal\u00e1vel para conectar servidores e switches leaf em data centers modernos de alta densidade. Com <strong>\u00f3pticos VCSEL a 850 nm<\/strong> , baixo consumo de energia e suporte a <strong>Fibra multimodo OM3\/OM4<br><\/strong>, permite uma atualiza\u00e7\u00e3o limpa a partir de 10G e fornece a base \u00f3ptica para agrega\u00e7\u00e3o de 100G (4\u00d725G) e al\u00e9m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Para conectividade confi\u00e1vel e de n\u00edvel industrial, <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/476099.htm\"><strong>o m\u00f3dulo SFP28 25GBASE-SR da LINK-PP<\/strong><\/a> oferece desempenho e interoperabilidade adaptados \u00e0s redes modernas em nuvem e corporativas.<\/p>","protected":false},"excerpt":{"rendered":"<p>Saiba como os m\u00f3dulos \u00f3pticos SFP28 25GBASE-SR permitem liga\u00e7\u00f5es de curto alcance e alta densidade entre servidores e switches nos data centers modernos, incluindo alcance em OM3\/OM4, VCSELs e boas pr\u00e1ticas de implanta\u00e7\u00e3o.<\/p>","protected":false},"author":1,"featured_media":4540,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[16,21,26],"class_list":["post-4541","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-link-pp-25g-sfp28-optical-modules","tag-fiber-optic-cage-and-connector","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/posts\/4541","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/comments?post=4541"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/posts\/4541\/revisions"}],"predecessor-version":[{"id":10950,"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/posts\/4541\/revisions\/10950"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/media\/4540"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/media?parent=4541"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/categories?post=4541"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/tags?post=4541"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}