{"id":2684,"date":"2025-10-24T08:57:56","date_gmt":"2025-10-24T00:57:56","guid":{"rendered":"https:\/\/ceshi.tfngw.com\/?page_id=2684"},"modified":"2025-11-21T17:02:56","modified_gmt":"2025-11-21T09:02:56","slug":"f-d1-handheld-laser-source","status":"publish","type":"page","link":"https:\/\/www.tfngj.com\/fr\/fiber-optic-testers\/f-d1-handheld-laser-source\/","title":{"rendered":"Source laser portative F-D1"},"content":{"rendered":"<div class=\"wp-block-cover alignfull is-light wp-duotone-unset-1\" style=\"border-radius:0px;margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0;font-size:clamp(3.615rem, 3.615rem + ((1vw - 0.2rem) * 4.856), 7.5rem);min-height:461px;aspect-ratio:unset;\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1280\" class=\"wp-block-cover__image-background wp-image-2550 size-full\" alt=\"\" src=\"https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/back-2-scaled.webp\" data-object-fit=\"cover\" srcset=\"https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/back-2-scaled.webp 2560w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/back-2-300x150.webp 300w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/back-2-1024x512.webp 1024w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/back-2-768x384.webp 768w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/back-2-1536x768.webp 1536w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/back-2-2048x1024.webp 2048w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/back-2-18x9.webp 18w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/back-2-600x300.webp 600w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim-30 has-background-dim\" style=\"background-color:#359aca\"><\/span><div class=\"wp-block-cover__inner-container has-global-padding is-layout-constrained wp-container-core-cover-is-layout-ad1af2a0 wp-block-cover-is-layout-constrained\"><h1 class=\"wp-block-heading alignfull has-text-align-center has-neutral-0-color has-text-color has-link-color wp-elements-81ff3b049d816fcaa3fd73286cd3aee6\" style=\"margin-right:0;margin-left:0;font-size:clamp(1.648rem, 1.648rem + ((1vw - 0.2rem) * 1.44), 2.8rem);text-transform:capitalize\" id=\"fd1-handheld-laser%25c2%25a0source\">Source laser portative F-D1<\/h1>\n\n\n\n<p class=\"has-text-align-center has-neutral-0-color has-text-color has-link-color has-large-font-size wp-elements-8fbb312926f09c6403108a59c5352ad4\" style=\"margin-top:var(--wp--preset--spacing--medium)\">Source laser monomode et multimode, un outil id\u00e9al pour tester rapidement la connectivit\u00e9 des fibres et la perte de lien.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-global-padding is-content-justification-center is-layout-constrained wp-container-core-group-is-layout-df757ecc wp-block-group-is-layout-constrained\" style=\"margin-top:0;margin-bottom:0;padding-top:calc( 0.5 * var(--wp--style--root--padding-right, var(--wp--custom--gap--horizontal)));padding-right:var(--wp--style--root--padding-right, var(--wp--custom--gap--horizontal));padding-bottom:calc( 0.5 * var(--wp--style--root--padding-right, var(--wp--custom--gap--horizontal)));padding-left:var(--wp--style--root--padding-left, var(--wp--custom--gap--horizontal))\">\n<div style=\"height:0px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div style=\"height:calc( 0.25 * var(--wp--style--root--padding-right, var(--wp--custom--gap--horizontal)))\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignwide is-nowrap is-layout-flex wp-container-core-group-is-layout-6c531013 wp-block-group-is-layout-flex\"><div class=\"yoast-breadcrumbs\"><span><span><a href=\"https:\/\/www.tfngj.com\/fr\/\">Accueil<\/a><\/span> &gt; <span><a href=\"https:\/\/www.tfngj.com\/fr\/fiber-optic-testers\/\">Testeurs de fibres optiques<\/a><\/span> &gt; <span class=\"breadcrumb_last\" aria-current=\"page\">Source laser portative F-D1<\/span><\/span><\/div><\/div>\n\n\n\n<div class=\"wp-block-columns alignwide are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-b9f7452e wp-block-columns-is-layout-flex\" style=\"margin-top:var(--wp--preset--spacing--x-large)\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\"><h2 class=\"wp-block-heading has-5-x-large-font-size\" id=\"highlights\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#2588cc\" class=\"has-inline-color\">Points forts<\/mark><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\" style=\"margin-right:0;margin-left:0;padding-right:0;padding-left:0\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/4-1.jpg\" alt=\"source laser\" class=\"wp-image-2687\" srcset=\"https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/4-1.jpg 800w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/4-1-300x300.jpg 300w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/4-1-150x150.jpg 150w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/4-1-768x768.jpg 768w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/4-1-12x12.jpg 12w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/4-1-600x600.jpg 600w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/4-1-100x100.jpg 100w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\"><ul style=\"margin-right:0;--plover--style--block-gap:var(--wp--preset--spacing--2-x-small);\" class=\"wp-block-list is-style-check-circle\">\n<li>Multimode : Prend en charge les longueurs d'onde 850nm et 1300nm ; monomode : Prend en charge les longueurs d'onde de 1310nm et 1550nm<\/li>\n\n\n\n<li>Prend en charge les fr\u00e9quences de modulation de 270 Hz, 1 kHz et 2 kHz. Convient aux environnements complexes avec une meilleure pr\u00e9cision de reconnaissance des signaux<\/li>\n\n\n\n<li>La stabilit\u00e9 de \u00b10,05dB\/heure garantit la fiabilit\u00e9 des donn\u00e9es d'essai<\/li>\n\n\n\n<li>Jusqu'\u00e0 16 heures d'autonomie de la batterie, id\u00e9ale pour les op\u00e9rations ext\u00e9rieures prolong\u00e9es<\/li>\n\n\n\n<li>VFL en option pour l'identification des fibres auxiliaires et la localisation des d\u00e9fauts<\/li>\n\n\n\n<li>Boutons clairs pour une utilisation facile. La modulation, l'att\u00e9nuation et la longueur d'onde peuvent \u00eatre modifi\u00e9es par une simple pression sur un bouton.<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-a89b3969 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.tfngj.com\/fr\/contact-us\/\">Demande de devis<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-bd93ecdd wp-block-columns-is-layout-flex\" style=\"margin-top:var(--wp--preset--spacing--2-x-large)\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/5-7.jpg\" alt=\"source laser optique\" class=\"wp-image-3197\" style=\"width:374px;height:auto\" srcset=\"https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/5-7.jpg 800w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/5-7-300x300.jpg 300w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/5-7-150x150.jpg 150w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/5-7-768x768.jpg 768w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/5-7-12x12.jpg 12w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/5-7-600x600.jpg 600w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/5-7-100x100.jpg 100w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/3-7.jpg\" alt=\"source laser optique\" class=\"wp-image-3196\" style=\"width:373px;height:auto\" srcset=\"https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/3-7.jpg 800w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/3-7-300x300.jpg 300w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/3-7-150x150.jpg 150w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/3-7-768x768.jpg 768w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/3-7-12x12.jpg 12w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/3-7-600x600.jpg 600w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/3-7-100x100.jpg 100w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/2-8.jpg\" alt=\"source laser optique\" class=\"wp-image-3195\" style=\"width:372px;height:auto\" srcset=\"https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/2-8.jpg 800w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/2-8-300x300.jpg 300w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/2-8-150x150.jpg 150w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/2-8-768x768.jpg 768w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/2-8-12x12.jpg 12w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/2-8-600x600.jpg 600w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/2-8-100x100.jpg 100w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n<h2 class=\"wp-block-heading alignwide has-text-align-left\" style=\"margin-top:var(--wp--preset--spacing--2-x-large);padding-left:0rem;font-size:clamp(1.743rem, 1.743rem + ((1vw - 0.2rem) * 1.571), 3rem);\" id=\"specifications\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#2588cc\" class=\"has-inline-color\">Sp\u00e9cifications<\/mark><\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-c375d253 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<figure class=\"wp-block-table alignleft is-style-stripes has-large-font-size\" style=\"margin-right:0rem;margin-left:0rem;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\"><table class=\"has-background has-fixed-layout\" style=\"background-color:#90caf191\"><tbody><tr><td>Articles\/Mod\u00e8le<\/td><td>F-D1<\/td><\/tr><tr><td>Longueur d'onde centrale<\/td><td>850\/1300nm\u00b120nm<br>1310\/1550nm\u00b120nm<\/td><\/tr><tr><td>Puissance de sortie<\/td><td>\u2265-10dBm@850\/1300nm<\/td><\/tr><tr><td>Type de laser<\/td><td>FP-LD<\/td><\/tr><tr><td>Stabilit\u00e9<\/td><td>\u00b10,05 dB\/heure ; \u00b10,1 dB\/8 heures<\/td><\/tr><tr><td>Fr\u00e9quence de modulation<\/td><td>270Hz, 1kHz, 2kHz<\/td><\/tr><tr><td>Type d'interface<\/td><td>FC\/PC (personnalisable)<\/td><\/tr><tr><td>Mode de sortie<\/td><td>CW, 270Hz, 1kHz, 2kHz<\/td><\/tr><tr><td>Ajustement de la puissance<\/td><td>Gamme de 6dB, pas de 1dB<\/td><\/tr><tr><td>Type de batterie<\/td><td>3 piles AA<\/td><\/tr><tr><td>Arr\u00eat automatique<\/td><td>10 minutes d'inactivit\u00e9<\/td><\/tr><tr><td>&nbsp;VFL int\u00e9gr\u00e9<\/td><td>1mW\/10mW s\u00e9lectionnable (en option)<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-ghost\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/pdf\/F-D1-F-D2-laser-source.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">T\u00e9l\u00e9chargement du manuel F-D1<\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns alignwide are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-bd93ecdd wp-block-columns-is-layout-flex\" style=\"margin-top:var(--wp--preset--spacing--2-x-large)\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:41%\">\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"684\" src=\"https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/pexels-viethangpham-31832305-1024x684.jpg\" alt=\"\" class=\"wp-image-2690\" srcset=\"https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/pexels-viethangpham-31832305-1024x684.jpg 1024w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/pexels-viethangpham-31832305-300x200.jpg 300w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/pexels-viethangpham-31832305-768x513.jpg 768w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/pexels-viethangpham-31832305-1536x1026.jpg 1536w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/pexels-viethangpham-31832305-18x12.jpg 18w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/pexels-viethangpham-31832305-600x401.jpg 600w, https:\/\/www.tfngj.com\/wp-content\/uploads\/2025\/10\/pexels-viethangpham-31832305.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:59%\"><h2 class=\"wp-block-heading has-2-x-large-font-size\" id=\"application-scenarios\">Sc\u00e9narios d'application<\/h2>\n\n\n\n<p>&nbsp;Personnel charg\u00e9 de la construction et de la r\u00e9ception des r\u00e9seaux en fibre optique<\/p>\n\n\n\n<p>&nbsp;\u00c9quipes d'exploitation et de maintenance des t\u00e9l\u00e9communications<\/p>\n\n\n\n<p>&nbsp;Test des liaisons par fibre optique dans les centres de donn\u00e9es<\/p>\n\n\n\n<p>&nbsp;Laboratoires, \u00e9tablissements d'enseignement et organismes de recherche<\/p>\n\n\n\n<p>&nbsp;Fabricants et int\u00e9grateurs d'\u00e9quipements \u00e0 fibres optiques<\/p>\n<\/div>\n<\/div>\n\n\n<h2 class=\"wp-block-heading alignwide has-text-align-center\" style=\"margin-top:var(--wp--preset--spacing--2-x-large);padding-left:0rem;font-size:clamp(1.743rem, 1.743rem + ((1vw - 0.2rem) * 1.571), 3rem);\" id=\"faqs\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#2588cc\" class=\"has-inline-color\">FAQ<\/mark><\/h2>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Quel est le d\u00e9lai de livraison habituel ?<\/summary>\n<p>Le d\u00e9lai de livraison d\u00e9pend de la complexit\u00e9 du produit et de l'\u00e9tat actuel de la commande.<\/p>\n\n\n\n<p>Les mod\u00e8les standard sont g\u00e9n\u00e9ralement en stock et peuvent \u00eatre exp\u00e9di\u00e9s dans les 3 \u00e0 7 jours ouvrables suivant la r\u00e9ception du paiement.<\/p>\n\n\n\n<p>Les mod\u00e8les personnalis\u00e9s ou \u00e0 configuration \u00e9lev\u00e9e peuvent n\u00e9cessiter un d\u00e9lai de 2 \u00e0 6 semaines pour la production et les essais.<\/p>\n\n\n\n<p>Le d\u00e9lai de livraison exact sera confirm\u00e9 par \u00e9crit par votre responsable des ventes apr\u00e8s que vous ayez pass\u00e9 votre commande.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Existe-t-il une quantit\u00e9 minimale de commande pour votre produit ?<\/summary>\n<p>Afin de garantir l'efficacit\u00e9 de la production et d'offrir \u00e0 nos clients les prix les plus comp\u00e9titifs, nous imposons g\u00e9n\u00e9ralement une quantit\u00e9 minimale de commande pour nos produits standard.<\/p>\n\n\n\n<p>Pour la plupart des instruments de test de communication, la quantit\u00e9 minimale de commande est de 1 unit\u00e9. Pour les outils et accessoires de soutien, des quantit\u00e9s minimales de commande plus \u00e9lev\u00e9es peuvent s'appliquer.<\/p>\n\n\n\n<p>Si vous avez des exigences particuli\u00e8res, veuillez contacter directement notre \u00e9quipe de vente pour en discuter.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Quelle est la dur\u00e9e de la garantie du produit ?<\/summary>\n<p>Nous sommes convaincus de la qualit\u00e9 et de la fiabilit\u00e9 de nos produits.<\/p>\n\n\n\n<p>Nous offrons une garantie standard de 12 mois sur tous les instruments, \u00e0 compter de la date d'arriv\u00e9e au port de destination.<\/p>\n\n\n\n<p>Des extensions de garantie sont \u00e9galement disponibles ; veuillez contacter notre \u00e9quipe de vente pour plus de d\u00e9tails.<\/p>\n<\/details>\n\n\n\n<div style=\"height:109px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Highlights Specifications Items\/Model F-D1 Center Wavelength 850\/1300nm\u00b120nm1310\/1550nm\u00b120nm Output Power \u2265-10dBm@850\/1300nm Laser Type FP-LD Stability \u00b10.05 dB\/hour; \u00b10.1 dB\/8 hours Modulation Frequency 270Hz, 1kHz, 2kHz Interface Type FC\/PC (customizable) Output Mode CW, 270Hz, 1kHz, 2kHz Power Adjustment 6dB range, 1dB steps Battery Type 3 AA batteries Auto Shutdown 10 minutes of inactivity &nbsp;Built-in VFL 1mW\/10mW selectable [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"parent":4225,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2684","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>F-D1 Handheld Laser Source - Communication Test Expert<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tfngj.com\/fr\/fiber-optic-testers\/f-d1-handheld-laser-source\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"F-D1 Handheld Laser Source - Communication Test Expert\" \/>\n<meta property=\"og:description\" content=\"Highlights Specifications Items\/Model F-D1 Center Wavelength 850\/1300nm\u00b120nm1310\/1550nm\u00b120nm Output Power \u2265-10dBm@850\/1300nm Laser Type FP-LD Stability \u00b10.05 dB\/hour; 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