{"id":4372,"date":"2025-09-01T00:00:00","date_gmt":"2025-09-01T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/sfp-1g-zx-vs-sfp-1g-ezx-easy-choice-for-long-distance\/"},"modified":"2026-06-22T07:56:12","modified_gmt":"2026-06-22T07:56:12","slug":"sfp-1g-zx-vs-sfp-1g-ezx-easy-choice-for-long-distance","status":"publish","type":"post","link":"https:\/\/resources.l-p.com\/ru\/knowledge-center\/sfp-1g-zx-vs-sfp-1g-ezx-easy-choice-for-long-distance","title":{"rendered":"SFP-1G-ZX vs SFP-1G-EZX: Which Optical Transceiver Wins for Your Network?"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/65407200b5fc4822b43aaedeeee7f35a.webp\" alt=\"sfp-1g-zx vs sfp-1g-ezx\" class=\"wp-image-4370\" srcset=\"https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/65407200b5fc4822b43aaedeeee7f35a.webp 1200w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/65407200b5fc4822b43aaedeeee7f35a-300x178.webp 300w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/65407200b5fc4822b43aaedeeee7f35a-1024x608.webp 1024w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/65407200b5fc4822b43aaedeeee7f35a-768x456.webp 768w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/65407200b5fc4822b43aaedeeee7f35a-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">If you&#8217;ve ever been tasked with procuring long-range fiber <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>optic transceivers<\/strong><\/a>, you&#8217;ve likely encountered the confusingly similar part numbers: <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/476865.htm\"><strong>SFP-1G-ZX<\/strong><\/a> and <a target=\"_blank\" href=\"https:\/\/www.l-p.com\/products\/476870.htm\"><strong>SFP-1G-EZX<\/strong><\/a>. While both promise to extend your network reach up to 80 kilometers, they are not identical.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Choosing the wrong one can lead to performance issues, compatibility headaches, or unnecessary costs. In this definitive guide, we&#8217;ll decode the differences, explore their specifications, and help you make an informed decision. Let&#8217;s dive in!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >&#x1f3c6; Key Takeaways<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Pick <strong>SFP-1G-ZX<\/strong> if you need up to 80km. It saves money for city networks and big campuses.<\/p><\/li><li><p>Use <strong>SFP-1G-EZX<\/strong> for distances up to 100km. This module works best for very long connections.<\/p><\/li><li><p>Always check how far your network needs to reach before you pick an <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>sfp module<\/strong><\/a>. This helps your network work well and stay reliable.<\/p><\/li><li><p>Both modules give gigabit speeds and use the same wavelength. They are good for fast data transfer.<\/p><\/li><li><p>Make sure your equipment works with the module, especially with Cisco devices. This stops problems and keeps things running smoothly.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >&#x1f3c6; <strong>The Core Difference: It&#8217;s All About the Receiver Sensitivity<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">At first glance, both modules are 1000BASE-ZX SFP transceivers operating on a <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/ru\/knowledge-center\/what-is-single-mode-fiber-and-how-does-it-work\/\"><strong>single-mode fiber (SMF)<\/strong><\/a> at a wavelength of 1550nm. The key distinction lies in their internal design and, most importantly, their <strong>receiver sensitivity<\/strong>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>SFP-1G-ZX:<\/strong> This is the standard 80km transceiver. It uses a standard PIN photodiode receiver.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>SFP-1G-EZX (Enhanced ZX):<\/strong> This is the <em>enhanced<\/em> version. It typically incorporates an <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/ru\/knowledge-center\/pin-apd-photodiode-technologies-applications\/\"><strong>APD (Avalanche Photodiode)<\/strong><\/a> receiver. APD receivers are more sensitive, meaning they can detect weaker light signals traveling over long distances.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">This fundamental difference in receiver technology cascades into several practical implications for your network deployment.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >&#x1f3c6; <strong>Head-to-Head Comparison: SFP-1G-ZX vs. SFP-1G-EZX<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">To make the differences crystal clear, let&#8217;s break them down in a side-by-side table.<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p><strong>Feature<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>SFP-1G-ZX<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>SFP-1G-EZX (Enhanced)<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>Winner &amp; Analysis<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Form Factor<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SFP (1G)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SFP (1G)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>Tie<\/strong> &#8211; Both are standard SFP modules.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Fiber Type<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Single-Mode (SMF)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Single-Mode (SMF)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>Tie<\/strong> &#8211; Both require 9\/125\u00b5m single-mode fiber.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Wavelength<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1550nm TX \/ 1550nm RX<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1550nm TX \/ 1550nm RX<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>Tie<\/strong> &#8211; Standard wavelength for long-haul transmission.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Max Distance<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~80 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~100 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>Tie<\/strong> &#8211; Both are marketed for 80km reach.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Receiver Type<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>PIN Photodiode<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>APD (Avalanche Photodiode)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>EZX<\/strong> &#8211; APD offers superior receiver sensitivity.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Receiver Sensitivity<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Typically around -23dBm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Typically <strong>-28dBm<\/strong> or better<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>EZX<\/strong> &#8211; Can detect much fainter signals, crucial for marginal links.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Transmit Power<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0 to +5dBm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>-5 to 0dBm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>Contextual<\/strong> &#8211; EZX doesn&#8217;t need as much power due to its sensitive receiver.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Power Consumption<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Lower<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Slightly Higher<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>ZX<\/strong> &#8211; APD receivers require a higher bias voltage.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Cost<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Generally <strong>Lower<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Generally <strong>Higher<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>ZX<\/strong> &#8211; The simpler PIN receiver design is less expensive.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Use Case<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Stable, well-planned fiber links with low attenuation.<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>Challenging links<\/strong> with higher splice\/connector loss, older fiber, or variable conditions.<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>Contextual<\/strong> &#8211; EZX is the &#8220;insurance policy&#8221; for difficult deployments.<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >When to Choose SFP-1G-ZX<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Choose the standard <strong>SFP-1G-ZX<\/strong> module if:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\">Your fiber optic path is well-characterized and has low signal loss (attenuation).<\/p><\/li><li><p style=\"margin: 0px;\">The link is relatively new with high-quality splices and connectors.<\/p><\/li><li><p style=\"margin: 0px;\">Your budget is a primary concern, and you are confident the standard module will suffice.<\/p><\/li><li><p style=\"margin: 0px;\">You are replacing an existing ZX module that worked perfectly.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A reliable and cost-effective option for this scenario is the <strong>LINK-PP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/476865.htm\"><strong>LS-SM551G-80C<\/strong><\/a>, known for its compatibility and stable performance in standard 80km applications.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >When to Choose SFP-1G-EZX (Enhanced)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Opt for the enhanced <strong>SFP-1G-EZX<\/strong> module if:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\">You are pushing the maximum distance and are concerned about <strong>link margin<\/strong>.<\/p><\/li><li><p style=\"margin: 0px;\">Your fiber infrastructure is older, has many splices, or has higher-than-expected attenuation.<\/p><\/li><li><p style=\"margin: 0px;\">You need a &#8220;set-it-and-forget-it&#8221; solution for a critical link where reliability is paramount.<\/p><\/li><li><p style=\"margin: 0px;\">Environmental factors might cause minor fluctuations in fiber performance.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">For these demanding scenarios, the <strong>LINK-PP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/476870.htm\"><strong>LS-SM551G-A0C<\/strong><\/a> is engineered to provide that extra margin of safety. Its superior receiver sensitivity ensures a stable and robust connection even on less-than-perfect fiber lines, making it a premier choice for <strong>mission-critical network links<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"613\" src=\"https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/e4135b035e7d4f289f585ae0cbc74d20.webp\" alt=\"OPTICAL TRANSCEIVER\" class=\"wp-image-4371\" srcset=\"https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/e4135b035e7d4f289f585ae0cbc74d20.webp 1200w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/e4135b035e7d4f289f585ae0cbc74d20-300x153.webp 300w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/e4135b035e7d4f289f585ae0cbc74d20-1024x523.webp 1024w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/e4135b035e7d4f289f585ae0cbc74d20-768x392.webp 768w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/e4135b035e7d4f289f585ae0cbc74d20-18x9.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >&#x1f3c6; <strong>Conclusion and Final Recommendation<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">So, which one should you choose?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\">For <strong>cost-efficiency and proven links<\/strong>: The standard <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/476865.htm\"><strong>SFP-1G-ZX<\/strong><\/a> is a perfect fit.<\/p><\/li><li><p style=\"margin: 0px;\">For <strong>performance margin and challenging conditions<\/strong>: The enhanced <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/476870.htm\"><strong>SFP-1G-EZX<\/strong><\/a> is worth the extra investment.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Always remember to calculate your <strong>fiber link budget<\/strong> before purchasing. If the total loss (fiber attenuation + splice loss + connector loss) is close to the maximum allowed by a ZX module, upgrading to an EZX module is a wise and proactive decision.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Still Unsure About Your Link Budget?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Don&#8217;t leave your network performance to chance. <strong>Browse our extensive selection of certified SFP-1G-ZX and SFP-1G-EZX modules<\/strong> at <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/page\/aboutus.htm\"><strong>LINK-PP<\/strong><\/a>. Our technical experts can help you analyze your needs and recommend the perfect transceiver for your specific infrastructure. Ensure unwavering reliability\u2014choose LINK-PP for your <strong>high-performance fiber optic connectivity<\/strong> needs.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>Explore LINK-PP Transceivers Now!<\/strong><\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >&#x1f3c6; <strong>FAQ<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >What is the main difference between SFP-1G-ZX and SFP-1G-EZX?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">You will see the biggest difference in distance. Sfp-1g-zx supports up to 80km. Sfp-1g-ezx reaches up to 100km. Both use the same speed and wavelength.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Can I use both modules in the same network?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes, you can use both modules in one network if your devices support them. Just make sure each link matches the right distance for the module.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Which module should I choose for future network growth?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">If you plan to expand your network over longer distances, pick sfp-1g-ezx. It gives you more range and flexibility for future upgrades.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Are SFP-1G-ZX and SFP-1G-EZX compatible with Cisco switches?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">You can use both modules with most Cisco switches. Always check your switch model for compatibility before you buy.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Do both modules support the same data rate?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes, both sfp-1g-zx and sfp-1g-ezx support 1.25Gbps (1000base). You get the same gigabit speed with either module.<\/p>","protected":false},"excerpt":{"rendered":"<p>Compare sfp-1g-zx vs sfp-1g-ezx for long-distance fiber. Find out which SFP suits your network\u2019s range, from 80 km to 120 km, and ensure reliable gigabit links.<\/p>","protected":false},"author":1,"featured_media":4370,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[15,24,26],"class_list":["post-4372","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-link-pp-1g-sfp-modules","tag-link-pp","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resources.l-p.com\/ru\/wp-json\/wp\/v2\/posts\/4372","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resources.l-p.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resources.l-p.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resources.l-p.com\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resources.l-p.com\/ru\/wp-json\/wp\/v2\/comments?post=4372"}],"version-history":[{"count":4,"href":"https:\/\/resources.l-p.com\/ru\/wp-json\/wp\/v2\/posts\/4372\/revisions"}],"predecessor-version":[{"id":11199,"href":"https:\/\/resources.l-p.com\/ru\/wp-json\/wp\/v2\/posts\/4372\/revisions\/11199"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resources.l-p.com\/ru\/wp-json\/wp\/v2\/media\/4370"}],"wp:attachment":[{"href":"https:\/\/resources.l-p.com\/ru\/wp-json\/wp\/v2\/media?parent=4372"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resources.l-p.com\/ru\/wp-json\/wp\/v2\/categories?post=4372"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resources.l-p.com\/ru\/wp-json\/wp\/v2\/tags?post=4372"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}