{"id":5580,"date":"2026-05-14T03:39:20","date_gmt":"2026-05-14T03:39:20","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/sfp-1g-sx-vs-sfp-1g-lx-multimode-vs-single-mode-network\/"},"modified":"2026-05-25T09:01:52","modified_gmt":"2026-05-25T09:01:52","slug":"sfp-1g-sx-vs-sfp-1g-lx-multimode-vs-single-mode-network","status":"publish","type":"post","link":"https:\/\/lp.szlogic.cn\/ru\/knowledge-center\/sfp-1g-sx-vs-sfp-1g-lx-multimode-vs-single-mode-network","title":{"rendered":"SFP-1G-SX vs SFP-1G-LX Multimode or Single-mode for Your Network"},"content":{"rendered":"
\"SFP-1G-SX<\/figure>\n\n\n\n

Confused between SFP-1G-SX<\/strong> and SFP-1G-LX<\/strong>? This guide demystifies the key differences between SFP-1G-SX (850nm, Multimode) and SFP-1G-LX (1310nm, Single-mode) transceivers. We compare technical specifications, transmission distance, compatible fiber types, typical use cases, cost considerations, and compatibility factors. Includes a detailed comparison table and guidance on selecting the right module for switches, routers, and media converters. Features compatible <\/span>LINK-PP<\/strong><\/span> transceivers.<\/span><\/p>\n\n\n\n

\u27a4 SFP-1G-SX vs SFP-1G-LX: The Ultimate 1G Transceiver Comparison<\/strong><\/h2>\n\n\n\n

Choosing the right Small Form-factor Pluggable (SFP) transceiver is critical for network performance<\/strong>, cost efficiency<\/strong>, and future scalability<\/strong>. Two of the most common 1 Gigabit Ethernet modules\u2014the SFP-1G-SX<\/strong> and SFP-1G-LX<\/strong>\u2014often cause confusion due to their similar naming but distinct applications. Understanding their technical differences<\/strong>, fiber compatibility<\/strong>, and ideal use cases<\/strong> ensures optimal network design<\/strong> and prevents costly mismatches.<\/p>\n\n\n\n

1. Core Technical Specifications Compared<\/h3>\n\n\n\n
\n\n<\/colgroup>

Feature<\/strong><\/p><\/th>

SFP-1G-SX<\/strong><\/a><\/p><\/th>

SFP-1G-LX<\/strong><\/a><\/p><\/th><\/tr>

Wavelength<\/strong><\/p><\/td>

850nm (VCSEL Laser)<\/p><\/td>

1310nm (FP Laser)<\/p><\/td><\/tr>

Fiber Type<\/strong><\/p><\/td>

Multimode Fiber (MMF – OM1\/OM2\/OM3)<\/p><\/td>

Single-mode Fiber (SMF – OS1\/OS2)<\/p><\/td><\/tr>

Max Distance<\/strong><\/p><\/td>

550m (OM3 MMF) \/ 300m (OM1 MMF)<\/p><\/td>

10km (Standard) \/ 20km (Extended LX)<\/p><\/td><\/tr>

Cable Diameter<\/strong><\/p><\/td>

50\u00b5m or 62.5\u00b5m<\/p><\/td>

9\u00b5m<\/p><\/td><\/tr>

Key Standard<\/strong><\/p><\/td>

IEEE 802.3z 1000BASE-SX<\/p><\/td>

IEEE 802.3z 1000BASE-LX<\/p><\/td><\/tr>

Typical Cost<\/strong><\/p><\/td>

Lower<\/p><\/td>

Higher<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n

2. Deep Dive: Wavelength & Fiber Compatibility<\/h3>\n\n\n\n