{"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\/fr\/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>Utilisez le tableau de d\u00e9cision pour traduire ce sujet en crit\u00e8res pr\u00e9cis r\u00e9gissant l'achat, la conception et la r\u00e9ception. Chaque ligne doit \u00eatre valid\u00e9e par rapport aux normes en vigueur concernant l'\u00e9quipement, l'itin\u00e9raire et la destination, plut\u00f4t que d'\u00eatre simplement copi\u00e9e \u00e0 partir d'un catalogue g\u00e9n\u00e9rique.<\/p>\n<table>\n<thead>\n<tr>\n<th>Domaine de d\u00e9cision<\/th>\n<th>\u00c9l\u00e9ments \u00e0 pr\u00e9ciser<\/th>\n<th>Pourquoi est-ce important ?<\/th>\n<th>\u00c9l\u00e9ments de preuve \u00e0 conserver<\/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>Les commandes ci-dessous \u00e9tablissent un lien entre le plan, l'\u00e9chantillon, le lot de production et le r\u00e9sultat de l'installation. Elles sont d\u00e9lib\u00e9r\u00e9ment ax\u00e9es sur la praticit\u00e9 : chacune d'entre elles g\u00e9n\u00e8re un document que les \u00e9quipes des achats, de l'ing\u00e9nierie et du terrain peuvent consulter ult\u00e9rieurement.<\/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>Contr\u00f4les de r\u00e9ception et de remise<\/h2>\n<p>Convenez de la m\u00e9thode et de la marche \u00e0 suivre avant le d\u00e9but des essais. Un r\u00e9sultat pour lequel le responsable du dossier ou les mesures \u00e0 prendre en cas d'\u00e9chec n'ont pas \u00e9t\u00e9 d\u00e9finis est difficile \u00e0 exploiter lors de la validation de l'exp\u00e9dition ou de la mise en service.<\/p>\n<table>\n<thead>\n<tr>\n<th>V\u00e9rifier<\/th>\n<th>M\u00e9thode<\/th>\n<th>Enregistrer<\/th>\n<th>Mesure en cas de d\u00e9faillance<\/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>Budget<\/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>Normes et justificatifs \u00e0 joindre au bon de commande<\/h2>\n<p>Le document de 2025 d\u00e9crit les normes GPON, XG(S)-PON, 50G-PON ainsi que les r\u00e9f\u00e9rences relatives \u00e0 la coexistence dans les r\u00e9seaux d'acc\u00e8s. Voir <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\">Document technique de l'UIT sur l'acc\u00e8s \u00e0 haut d\u00e9bit<\/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>La recommandation de 2024 actuellement en vigueur d\u00e9finit les cat\u00e9gories de fibres monomodes insensibles \u00e0 la flexion ainsi que leur champ d'application. Voir <a href=\"https:\/\/www.itu.int\/rec\/T-REC-G.657-202408-I\" target=\"_blank\" rel=\"noopener\">Recommandation UIT-T G.657 relative aux fibres insensibles \u00e0 la courbure<\/a>.<\/p>\n<h2>FAQ<\/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>Pour obtenir un devis sur mesure, consultez le site de Fenxi <a href=\"https:\/\/www.fenxifiber.com\/fr\/product-category\/repartiteur-de-fibre-optique\/\" target=\"_blank\" rel=\"noopener\">PLC splitter range<\/a>, <a href=\"https:\/\/www.fenxifiber.com\/fr\/product-category\/adaptateur-de-fibre-optique\/\" target=\"_blank\" rel=\"noopener\">fiber adapter range<\/a>, <a href=\"https:\/\/www.fenxifiber.com\/fr\/pon-power-budget-split-ratio\/\" target=\"_blank\" rel=\"noopener\">PON split-ratio planning guide<\/a>, et <a href=\"https:\/\/www.fenxifiber.com\/fr\/calcul-du-budget-de-perte-dinsertion\/\" target=\"_blank\" rel=\"noopener\">fiber link loss-budget reference<\/a>. Veuillez nous communiquer le march\u00e9 cible, les interfaces de raccordement, le type de fibre, la structure du c\u00e2ble, les quantit\u00e9s, la r\u00e9vision du plan et les rapports d'essais requis. La r\u00e9ponse permettra alors de distinguer les options standard du catalogue des articles n\u00e9cessitant une confirmation ou un outillage sur mesure.<\/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\/fr\/wp-json\/wp\/v2\/posts\/1248","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fenxifiber.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fenxifiber.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fenxifiber.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fenxifiber.com\/fr\/wp-json\/wp\/v2\/comments?post=1248"}],"version-history":[{"count":1,"href":"https:\/\/www.fenxifiber.com\/fr\/wp-json\/wp\/v2\/posts\/1248\/revisions"}],"predecessor-version":[{"id":1249,"href":"https:\/\/www.fenxifiber.com\/fr\/wp-json\/wp\/v2\/posts\/1248\/revisions\/1249"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fenxifiber.com\/fr\/wp-json\/wp\/v2\/media\/1132"}],"wp:attachment":[{"href":"https:\/\/www.fenxifiber.com\/fr\/wp-json\/wp\/v2\/media?parent=1248"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fenxifiber.com\/fr\/wp-json\/wp\/v2\/categories?post=1248"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fenxifiber.com\/fr\/wp-json\/wp\/v2\/tags?post=1248"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}