{"id":1248,"date":"2026-10-16T15:28:00","date_gmt":"2026-10-16T15:28:00","guid":{"rendered":"https:\/\/www.fenxifiber.com\/xgs-pon-coexistence-splitter\/"},"modified":"2026-10-02T10:01:07","modified_gmt":"2026-10-02T10:01:07","slug":"xgs-pon-coexistence-splitter","status":"publish","type":"post","link":"https:\/\/www.fenxifiber.com\/ar\/xgs-pon-coexistence-splitter\/","title":{"rendered":"XGS-PON Coexistence and Passive Splitter Selection"},"content":{"rendered":"<p><strong>XGS-PON coexistence is an end-to-end optical distribution network question, not a special splitter label. Confirm the coexistence architecture, wavelengths, route loss and condition of installed splitters and connectors before assuming that an existing ODN is ready.<\/strong><\/p>\n<p>Passive PLC splitters are broadband devices, but the deployed module, connectors, ageing history and total route still need evidence. Migration planning should identify coexistence equipment, upstream and downstream plans, launch conditions and receiver budgets using the operator&#39;s approved system specifications.<\/p>\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/www.fenxifiber.com\/wp-content\/uploads\/2026\/09\/h2-ftth-topology.jpg\" alt=\"PON topology reviewed for GPON and XGS-PON coexistence\" width=\"1337\" height=\"861\" \/><\/figure>\n<h2>What Must Be Decided for XGS-PON splitter selection?<\/h2>\n<p>\u0627\u0633\u062a\u062e\u062f\u0645 \u062c\u062f\u0648\u0644 \u0627\u0644\u0642\u0631\u0627\u0631 \u0644\u062a\u062d\u0648\u064a\u0644 \u0627\u0644\u0645\u0648\u0636\u0648\u0639 \u0625\u0644\u0649 \u0645\u062f\u062e\u0644\u0627\u062a \u0645\u062d\u062f\u062f\u0629 \u062a\u062a\u0639\u0644\u0642 \u0628\u0627\u0644\u0634\u0631\u0627\u0621 \u0648\u0627\u0644\u062a\u0635\u0645\u064a\u0645 \u0648\u0627\u0644\u0642\u0628\u0648\u0644. \u064a\u062c\u0628 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0643\u0644 \u0635\u0641 \u0648\u0641\u0642\u064b\u0627 \u0644\u0644\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0641\u0639\u0644\u064a\u0629 \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0627\u0644\u0645\u0639\u062f\u0627\u062a \u0648\u0627\u0644\u0645\u0633\u0627\u0631 \u0648\u0627\u0644\u0648\u062c\u0647\u0629\u060c \u0628\u062f\u0644\u0627\u064b \u0645\u0646 \u0646\u0633\u062e\u0647 \u0645\u0646 \u0643\u062a\u0627\u0644\u0648\u062c \u0639\u0627\u0645.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u0645\u062c\u0627\u0644 \u0627\u062a\u062e\u0627\u0630 \u0627\u0644\u0642\u0631\u0627\u0631<\/th>\n<th>\u0645\u0627 \u0627\u0644\u0630\u064a \u064a\u062c\u0628 \u062a\u062d\u062f\u064a\u062f\u0647<\/th>\n<th>\u0644\u0645\u0627\u0630\u0627 \u0647\u0630\u0627 \u0645\u0647\u0645\u061f<\/th>\n<th>\u0627\u0644\u0623\u062f\u0644\u0629 \u0627\u0644\u062a\u064a \u064a\u062c\u0628 \u0627\u0644\u0627\u062d\u062a\u0641\u0627\u0638 \u0628\u0647\u0627<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Coexistence plan<\/td>\n<td>Exact PON systems and wavelengths<\/td>\n<td>Defines passive path requirements<\/td>\n<td>Approved architecture<\/td>\n<\/tr>\n<tr>\n<td>ODN inventory<\/td>\n<td>Splitter ratios, stages and packages<\/td>\n<td>Reveals unknown components<\/td>\n<td>Route database<\/td>\n<\/tr>\n<tr>\n<td>Loss evidence<\/td>\n<td>Measured and calculated path margins<\/td>\n<td>Confirms feasibility<\/td>\n<td>Per-route budget<\/td>\n<\/tr>\n<tr>\n<td>Connector condition<\/td>\n<td>Inspection and cleaning records<\/td>\n<td>Contamination affects margin<\/td>\n<td>Saved images<\/td>\n<\/tr>\n<tr>\n<td>Migration stage<\/td>\n<td>Pilot, overlay and cutover sequence<\/td>\n<td>Controls service risk<\/td>\n<td>Change plan<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>How to Control XGS-PON splitter selection in the Project<\/h2>\n<p>\u062a\u0631\u0628\u0637 \u0639\u0646\u0627\u0635\u0631 \u0627\u0644\u062a\u062d\u0643\u0645 \u0623\u062f\u0646\u0627\u0647 \u0628\u064a\u0646 \u0627\u0644\u0631\u0633\u0645\u060c \u0648\u0627\u0644\u0639\u064a\u0646\u0629\u060c \u0648\u062f\u0641\u0639\u0629 \u0627\u0644\u0625\u0646\u062a\u0627\u062c\u060c \u0648\u0627\u0644\u0646\u062a\u064a\u062c\u0629 \u0627\u0644\u0646\u0647\u0627\u0626\u064a\u0629. \u0648\u0642\u062f \u0635\u064f\u0645\u0645\u062a \u0647\u0630\u0647 \u0627\u0644\u0639\u0646\u0627\u0635\u0631 \u0644\u062a\u0643\u0648\u0646 \u0639\u0645\u0644\u064a\u0629 \u0628\u0634\u0643\u0644 \u0645\u062a\u0639\u0645\u062f: \u0641\u0643\u0644 \u0645\u0646\u0647\u0627 \u064a\u064f\u0646\u0634\u0626 \u0633\u062c\u0644\u0627\u064b \u064a\u0645\u0643\u0646 \u0644\u0641\u0631\u0642 \u0627\u0644\u0645\u0634\u062a\u0631\u064a\u0627\u062a \u0648\u0627\u0644\u0647\u0646\u062f\u0633\u0629 \u0648\u0627\u0644\u0639\u0645\u0644 \u0627\u0644\u0645\u064a\u062f\u0627\u0646\u064a \u0645\u0631\u0627\u062c\u0639\u062a\u0647 \u0644\u0627\u062d\u0642\u064b\u0627.<\/p>\n<h3>Start with the system plan<\/h3>\n<p>Use the operator-approved wavelength and coexistence design. Do not infer compatibility from the words broadband or PON on a splitter datasheet.<\/p>\n<h3>Audit the installed route<\/h3>\n<p>Trace splitter stages, connector points, splices and fibre length for representative and worst-case customers. Resolve unknown field components before assigning margin.<\/p>\n<h3>Measure before and after change<\/h3>\n<p>Keep baseline and post-migration optical results under the same route identity. This separates a new-system issue from pre-existing loss or contamination.<\/p>\n<h3>Pilot the hardest paths<\/h3>\n<p>Include long routes, multiple connection points and field cabinets with uncertain history. An easy laboratory path does not prove the service-area ODN.<\/p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.fenxifiber.com\/wp-content\/uploads\/2026\/09\/h2-package-styles.jpg\" alt=\"PLC splitter packages used in an existing optical distribution network\" width=\"1337\" height=\"861\" \/><\/figure>\n<h2>\u0641\u062d\u0648\u0635\u0627\u062a \u0627\u0644\u0642\u0628\u0648\u0644 \u0648\u0627\u0644\u062a\u0633\u0644\u064a\u0645<\/h2>\n<p>\u064a\u062c\u0628 \u0627\u0644\u0627\u062a\u0641\u0627\u0642 \u0639\u0644\u0649 \u0627\u0644\u0637\u0631\u064a\u0642\u0629 \u0648\u0627\u0644\u0625\u062c\u0631\u0627\u0621\u0627\u062a \u0642\u0628\u0644 \u0628\u062f\u0621 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631. \u0641\u0645\u0646 \u0627\u0644\u0635\u0639\u0628 \u0627\u0644\u0627\u0633\u062a\u0641\u0627\u062f\u0629 \u0645\u0646 \u0623\u064a \u0646\u062a\u064a\u062c\u0629 \u0644\u0627 \u064a\u0648\u062c\u062f \u0644\u0647\u0627 \u0645\u0633\u0624\u0648\u0644 \u0645\u062d\u062f\u062f \u0639\u0646 \u0627\u0644\u0633\u062c\u0644 \u0623\u0648 \u0625\u062c\u0631\u0627\u0621 \u0645\u062d\u062f\u062f \u0641\u064a \u062d\u0627\u0644\u0629 \u0627\u0644\u0641\u0634\u0644\u060c \u0648\u0630\u0644\u0643 \u0623\u062b\u0646\u0627\u0621 \u0627\u0644\u0625\u0641\u0631\u0627\u062c \u0639\u0646 \u0627\u0644\u0634\u062d\u0646\u0629 \u0623\u0648 \u0628\u062f\u0621 \u0627\u0644\u062a\u0634\u063a\u064a\u0644.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u062a\u062d\u0642\u0642<\/th>\n<th>\u0627\u0644\u0637\u0631\u064a\u0642\u0629<\/th>\n<th>\u0627\u0644\u0633\u062c\u0644<\/th>\n<th>\u0625\u062c\u0631\u0627\u0621 \u0627\u0644\u0641\u0634\u0644<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Architecture<\/td>\n<td>Review coexistence design<\/td>\n<td>Signed diagram<\/td>\n<td>Resolve unsupported combination<\/td>\n<\/tr>\n<tr>\n<td>Inventory<\/td>\n<td>Verify field components<\/td>\n<td>ODN record<\/td>\n<td>Inspect unknown item<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u0644\u0645\u064a\u0632\u0627\u0646\u064a\u0629<\/td>\n<td>Calculate worst-case margin<\/td>\n<td>Engineering file<\/td>\n<td>Reduce loss or split<\/td>\n<\/tr>\n<tr>\n<td>Pilot<\/td>\n<td>Test representative routes<\/td>\n<td>Before-after dataset<\/td>\n<td>Correct route issues<\/td>\n<\/tr>\n<tr>\n<td>Handover<\/td>\n<td>Update route and port records<\/td>\n<td>As-built export<\/td>\n<td>Block cutover until complete<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.fenxifiber.com\/wp-content\/uploads\/2026\/01\/Optical-Splitter-SC-APC-2.jpg\" alt=\"Connectorized PLC splitter whose condition affects migration readiness\" width=\"800\" height=\"800\" \/><\/figure>\n<h2>\u0627\u0644\u0645\u0639\u0627\u064a\u064a\u0631 \u0648\u0627\u0644\u0623\u062f\u0644\u0629 \u0627\u0644\u062a\u064a \u064a\u062c\u0628 \u0627\u0644\u0627\u0633\u062a\u0646\u0627\u062f \u0625\u0644\u064a\u0647\u0627 \u0639\u0646\u062f \u0625\u0635\u062f\u0627\u0631 \u0623\u0645\u0631 \u0627\u0644\u0634\u0631\u0627\u0621<\/h2>\n<p>\u062a\u062a\u0646\u0627\u0648\u0644 \u0648\u0631\u0642\u0629 \u0639\u0627\u0645 2025 \u062a\u0642\u0646\u064a\u0627\u062a GPON \u0648XG(S)-PON \u064850G-PON \u0648\u0627\u0644\u0645\u0631\u0627\u062c\u0639 \u0627\u0644\u0645\u062a\u0639\u0644\u0642\u0629 \u0628\u0627\u0644\u062a\u0639\u0627\u064a\u0634 \u0641\u064a \u0634\u0628\u0643\u0627\u062a \u0627\u0644\u0648\u0635\u0648\u0644. \u0627\u0646\u0638\u0631 <a href=\"https:\/\/www.itu.int\/epublications\/en\/publication\/itu-t-gstp-bain-2025-03-broadband-access-and-in-premises-networks\" target=\"_blank\" rel=\"noopener\">\u0648\u0631\u0642\u0629 \u0641\u0646\u064a\u0629 \u0635\u0627\u062f\u0631\u0629 \u0639\u0646 \u0627\u0644\u0627\u062a\u062d\u0627\u062f \u0627\u0644\u062f\u0648\u0644\u064a \u0644\u0644\u0627\u062a\u0635\u0627\u0644\u0627\u062a (ITU) \u062d\u0648\u0644 \u0627\u0644\u0648\u0635\u0648\u0644 \u0625\u0644\u0649 \u0627\u0644\u0646\u0637\u0627\u0642 \u0627\u0644\u0639\u0631\u064a\u0636<\/a>.<\/p>\n<p>The G.9804.3 series defines the physical-media-dependent layer for 50G-PON. See <a href=\"https:\/\/www.itu.int\/rec\/T-REC-G.9804.3\/en\" target=\"_blank\" rel=\"noopener\">ITU-T G.9804.3 50G-PON specification<\/a>.<\/p>\n<p>\u062a\u062d\u062f\u062f \u0627\u0644\u062a\u0648\u0635\u064a\u0629 \u0627\u0644\u0633\u0627\u0631\u064a\u0629 \u0644\u0639\u0627\u0645 2024 \u0641\u0626\u0627\u062a \u0627\u0644\u0623\u0644\u064a\u0627\u0641 \u0623\u062d\u0627\u062f\u064a\u0629 \u0627\u0644\u0646\u0645\u0637 \u063a\u064a\u0631 \u0627\u0644\u062d\u0633\u0627\u0633\u0629 \u0644\u0644\u0627\u0646\u062d\u0646\u0627\u0621 \u0648\u0646\u0637\u0627\u0642 \u062a\u0637\u0628\u064a\u0642\u0627\u062a\u0647\u0627. \u0627\u0646\u0638\u0631 <a href=\"https:\/\/www.itu.int\/rec\/T-REC-G.657-202408-I\" target=\"_blank\" rel=\"noopener\">\u062a\u0648\u0635\u064a\u0629 \u0627\u0644\u0627\u062a\u062d\u0627\u062f \u0627\u0644\u062f\u0648\u0644\u064a \u0644\u0644\u0627\u062a\u0635\u0627\u0644\u0627\u062a (ITU-T) G.657 \u0628\u0634\u0623\u0646 \u0627\u0644\u0623\u0644\u064a\u0627\u0641 \u063a\u064a\u0631 \u0627\u0644\u062d\u0633\u0627\u0633\u0629 \u0644\u0644\u0627\u0646\u062d\u0646\u0627\u0621<\/a>.<\/p>\n<h2>\u0627\u0644\u0623\u0633\u0626\u0644\u0629 \u0627\u0644\u0634\u0627\u0626\u0639\u0629<\/h2>\n<p>Treat XGS-PON migration as a measured ODN audit. Splitter selection is one input alongside coexistence equipment, route loss, connector condition and operational records.<\/p>\n<h3>Does an existing GPON splitter automatically support XGS-PON?<\/h3>\n<p>Not automatically. Verify the specific splitter, wavelength plan, route loss and deployed ODN condition against the approved coexistence design.<\/p>\n<h3>Should the split ratio stay unchanged?<\/h3>\n<p>Only if the complete link budget and service design support it. Recalculate representative and worst-case paths.<\/p>\n<h3>What evidence is most useful before cutover?<\/h3>\n<p>An accurate route inventory, baseline loss data, connector inspection records and a pilot covering difficult field paths.<\/p>\n<p>\u0644\u0644\u062d\u0635\u0648\u0644 \u0639\u0644\u0649 \u0639\u0631\u0636 \u0623\u0633\u0639\u0627\u0631 \u062e\u0627\u0635 \u0628\u0645\u0634\u0631\u0648\u0639 \u0645\u0639\u064a\u0646\u060c \u064a\u0631\u062c\u0649 \u0627\u0644\u0627\u0637\u0644\u0627\u0639 \u0639\u0644\u0649 \u0645\u0648\u0642\u0639 Fenxi <a href=\"https:\/\/www.fenxifiber.com\/ar\/product-category\/%d9%85%d9%82%d8%b3%d9%90%d9%91%d9%85-%d8%a7%d9%84%d8%a3%d9%84%d9%8a%d8%a7%d9%81-%d8%a7%d9%84%d8%a8%d8%b5%d8%b1%d9%8a%d8%a9\/\" target=\"_blank\" rel=\"noopener\">PLC splitter range<\/a>, <a href=\"https:\/\/www.fenxifiber.com\/ar\/product-category\/%d9%85%d8%ad%d9%88%d9%84-%d8%a7%d9%84%d8%a3%d9%84%d9%8a%d8%a7%d9%81-%d8%a7%d9%84%d8%a8%d8%b5%d8%b1%d9%8a%d8%a9\/\" target=\"_blank\" rel=\"noopener\">fiber adapter range<\/a>, <a href=\"https:\/\/www.fenxifiber.com\/ar\/pon-power-budget-split-ratio\/\" target=\"_blank\" rel=\"noopener\">PON split-ratio planning guide<\/a>, \u0648 <a href=\"https:\/\/www.fenxifiber.com\/ar\/%d8%ad%d8%b3%d8%a7%d8%a8-%d9%85%d9%8a%d8%b2%d8%a7%d9%86%d9%8a%d8%a9-%d8%ae%d8%b3%d8%a7%d8%b1%d8%a9-%d8%a7%d9%84%d8%a5%d8%af%d8%ae%d8%a7%d9%84\/\" target=\"_blank\" rel=\"noopener\">fiber link loss-budget reference<\/a>. \u064a\u0631\u062c\u0649 \u0625\u0631\u0633\u0627\u0644 \u0645\u0639\u0644\u0648\u0645\u0627\u062a \u062d\u0648\u0644 \u0627\u0644\u0633\u0648\u0642 \u0627\u0644\u0645\u0633\u062a\u0647\u062f\u0641\u0629\u060c \u0648\u0648\u0627\u062c\u0647\u0627\u062a \u0627\u0644\u062a\u0648\u0635\u064a\u0644\u060c \u0648\u0646\u0648\u0639 \u0627\u0644\u0623\u0644\u064a\u0627\u0641\u060c \u0648\u062a\u0631\u0643\u064a\u0628 \u0627\u0644\u0643\u0627\u0628\u0644\u060c \u0648\u0627\u0644\u0643\u0645\u064a\u0627\u062a\u060c \u0648\u0631\u0642\u0645 \u0645\u0631\u0627\u062c\u0639\u0629 \u0627\u0644\u0645\u062e\u0637\u0637\u060c \u0648\u0633\u062c\u0644\u0627\u062a \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629. \u0648\u064a\u0645\u0643\u0646 \u0639\u0646\u062f\u0626\u0630\u064d \u0623\u0646 \u062a\u0645\u064a\u0632 \u0627\u0644\u0631\u062f \u0628\u064a\u0646 \u0627\u0644\u062e\u064a\u0627\u0631\u0627\u062a \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629 \u0627\u0644\u0648\u0627\u0631\u062f\u0629 \u0641\u064a \u0627\u0644\u0643\u062a\u0627\u0644\u0648\u062c \u0648\u0627\u0644\u0628\u0646\u0648\u062f \u0627\u0644\u062a\u064a \u062a\u062d\u062a\u0627\u062c \u0625\u0644\u0649 \u062a\u0623\u0643\u064a\u062f \u0623\u0648 \u0623\u062f\u0648\u0627\u062a \u062a\u0635\u0646\u064a\u0639 \u0645\u062e\u0635\u0635\u0629.<\/p>","protected":false},"excerpt":{"rendered":"<p>Audit XGS-PON splitter selection for coexistence through wavelength plans, ODN loss, splitter condition, connector cleanliness, route records, and staged migration.<\/p>","protected":false},"author":1,"featured_media":1132,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1248","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.fenxifiber.com\/ar\/wp-json\/wp\/v2\/posts\/1248","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fenxifiber.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fenxifiber.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fenxifiber.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fenxifiber.com\/ar\/wp-json\/wp\/v2\/comments?post=1248"}],"version-history":[{"count":1,"href":"https:\/\/www.fenxifiber.com\/ar\/wp-json\/wp\/v2\/posts\/1248\/revisions"}],"predecessor-version":[{"id":1249,"href":"https:\/\/www.fenxifiber.com\/ar\/wp-json\/wp\/v2\/posts\/1248\/revisions\/1249"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fenxifiber.com\/ar\/wp-json\/wp\/v2\/media\/1132"}],"wp:attachment":[{"href":"https:\/\/www.fenxifiber.com\/ar\/wp-json\/wp\/v2\/media?parent=1248"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fenxifiber.com\/ar\/wp-json\/wp\/v2\/categories?post=1248"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fenxifiber.com\/ar\/wp-json\/wp\/v2\/tags?post=1248"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}