{"id":3193,"date":"2026-02-26T00:00:00","date_gmt":"2026-02-26T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/products\/sr-sfp-module-specs-compatibility-distance-selection\/"},"modified":"2026-06-22T04:11:38","modified_gmt":"2026-06-22T04:11:38","slug":"sr-sfp-module-specs-compatibility-distance-selection","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/products\/sr-sfp-module-specs-compatibility-distance-selection","title":{"rendered":"M\u00f4-\u0111un SR SFP: Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u00e0 h\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn"},"content":{"rendered":"
\"SR<\/figure>\n\n\n\n

M\u1ed9t SR (Short-Range) <\/strong>SFP<\/strong><\/a>\/<\/strong>SFP+<\/strong><\/a> Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m:<\/strong> is a multimode optical transceiver designed for short-distance Ethernet links, typically operating at 850 nm over MMF<\/strong>. It is widely deployed in enterprise networks and data centers to provide cost-efficient, high-speed connectivity between switches, servers, and patch panels.<\/p>\n\n\n\n

In modern high-density environments, SR optics remain the default choice for links inside racks, rows, and aggregation layers where distances generally fall within tens to hundreds of meters. Compared with single-mode alternatives, SR modules offer lower optical cost, simpler fiber infrastructure (OM3\/OM4<\/a>), and high port density\u2014making them a practical baseline for 10G access and leaf-spine architectures.<\/p>\n\n\n\n

This guide explains the key technical specifications<\/strong>, s\u1ef1 tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n<\/strong>, and real-world compatibility considerations<\/strong> for SR SFP\/SFP+ modules, and provides a structured selection methodology to help engineers, purchasers, and network designers choose the correct optic for their deployment.<\/p>\n\n\n\n

⏩ What Is an SR SFP Module?<\/strong><\/h2>\n\n\n\n

M\u1ed9t SFP-SR<\/strong><\/a> (Short-Reach Small Form-Factor Pluggable) module<\/strong> is an optical transceiver designed for short-distance Ethernet transmission over multimode fiber, typically operating at 850 nm using a <\/strong>Laser VCSEL<\/strong><\/a>, and widely deployed in enterprise and data-center links for high-speed, cost-efficient connectivity.<\/p>\n\n\n\n

\"What<\/figure>\n\n\n\n

Key Characteristics of SR SFP Module<\/h3>\n\n\n\n

\u25cf Multimode Fiber Operation<\/strong>SR SFP modules are engineered for MMF (OM2\/OM3\/OM4)<\/strong> infrastructure, enabling simplified cabling within racks, rows, and equipment rooms where multimode fiber is already standardized.<\/p>\n\n\n\n

\u25cf Short-Reach Transmission Distance<\/strong>Typical reach depends on the Ethernet standard and fiber grade\u2014for example, up to ~300 m on OM3<\/strong> and up to ~400\u2013550 m on OM4<\/strong> for common SR variants such as 10GBASE-SR\u2014making them ideal for intra-data-center connectivity.<\/p>\n\n\n\n

\u25cf 850 nm VCSEL Optical Technology<\/strong>Most SR modules use Laser ph\u00e1t x\u1ea1 b\u1ec1 m\u1eb7t h\u1ed1c \u0111\u1ee9ng (VCSEL)<\/strong> sources at 850 nm, which provide stable performance, lower manufacturing cost, and efficient coupling into multimode fiber.<\/p>\n\n\n\n

\u25cf Low Power Consumption<\/strong>Compared with long-reach single-mode optics, SR SFP modules typically operate with lower optical output power and reduced electrical consumption<\/strong>, supporting high-density switch deployments.<\/p>\n\n\n\n

\u25cf Cost-Efficient for High-Volume Deployment<\/strong>Because multimode infrastructure and VCSEL components are economical at scale, SR SFP modules are widely selected for large-scale enterprise and hyperscale data-center environments<\/strong> where many short links are required.<\/p>\n\n\n\n

⏩ SR SFP Technical Specifications <\/strong><\/h2>\n\n\n\n
\"SR<\/figure>\n\n\n\n

Core Optical Parameters of SR Modules<\/h3>\n\n\n\n

Short-reach (SR) SFP\/m\u00f4-\u0111un quang h\u1ecdc SFP+<\/a> are designed for high-speed transmission over multimode fiber using an 850 nm VCSEL light source. Typical deployments use OM2, OM3, or OM4 MMF, with achievable distances varying by fiber grade and data rate.<\/p>\n\n\n\n