{"id":9283,"date":"2026-01-13T08:39:30","date_gmt":"2026-01-13T08:39:30","guid":{"rendered":"https:\/\/aborrego.inscastellbisbal.net\/?p=9283"},"modified":"2026-01-13T08:40:36","modified_gmt":"2026-01-13T08:40:36","slug":"mitjans-de-suport","status":"publish","type":"post","link":"https:\/\/aborrego.inscastellbisbal.net\/en\/2026\/01\/13\/mitjans-de-suport\/","title":{"rendered":"MItjans de suport"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"9283\" class=\"elementor elementor-9283\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1bb73d9 elementor-section-height-min-height elementor-section-items-top elementor-section-boxed elementor-section-height-default wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no elementor-invisible\" data-id=\"1bb73d9\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;animation&quot;:&quot;fadeIn&quot;,&quot;shape_divider_top&quot;:&quot;mountains&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t<div class=\"elementor-shape elementor-shape-top\" aria-hidden=\"true\" data-negative=\"false\">\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 1000 100\" preserveaspectratio=\"none\">\n\t<path class=\"elementor-shape-fill\" opacity=\"0.33\" d=\"M473,67.3c-203.9,88.3-263.1-34-320.3,0C66,119.1,0,59.7,0,59.7V0h1000v59.7 c0,0-62.1,26.1-94.9,29.3c-32.8,3.3-62.8-12.3-75.8-22.1C806,49.6,745.3,8.7,694.9,4.7S492.4,59,473,67.3z\"\/>\n\t<path class=\"elementor-shape-fill\" opacity=\"0.66\" d=\"M734,67.3c-45.5,0-77.2-23.2-129.1-39.1c-28.6-8.7-150.3-10.1-254,39.1 s-91.7-34.4-149.2,0C115.7,118.3,0,39.8,0,39.8V0h1000v36.5c0,0-28.2-18.5-92.1-18.5C810.2,18.1,775.7,67.3,734,67.3z\"\/>\n\t<path class=\"elementor-shape-fill\" d=\"M766.1,28.9c-200-57.5-266,65.5-395.1,19.5C242,1.8,242,5.4,184.8,20.6C128,35.8,132.3,44.9,89.9,52.5C28.6,63.7,0,0,0,0 h1000c0,0-9.9,40.9-83.6,48.1S829.6,47,766.1,28.9z\"\/>\n<\/svg>\t\t<\/div>\n\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-9353677\" data-id=\"9353677\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-49e9c5f elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"49e9c5f\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:500}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Mitjans de suport<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7ac1d9b elementor-widget elementor-widget-spacer\" data-id=\"7ac1d9b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-334d3d4 elementor-widget elementor-widget-spacer\" data-id=\"334d3d4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-257c484\" data-id=\"257c484\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9310f63 elementor-align-left elementor-widget elementor-widget-button\" data-id=\"9310f63\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-size-sm elementor-animation-float\" role=\"button\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Tornar al repte 2.2<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t<div class=\"elementor-element elementor-element-246d862 e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no e-con e-parent\" data-id=\"246d862\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-13bdaaf elementor-widget elementor-widget-spacer\" data-id=\"13bdaaf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cae1a46 elementor-widget elementor-widget-text-editor\" data-id=\"cae1a46\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>SAI (Sistema d&#8217;Alimentaci\u00f3 Ininterrumpida, o UPS en angl\u00e8s), \u00e9s com una bateria de reserva que mant\u00e9 tot enc\u00e8s uns minuts (o m\u00e9s) perqu\u00e8 puguis apagar-ho amb seguretat o esperar que torni la llum. \u00c9s essencial en entorns com torres de telecomunicacions, on un tall pot significar p\u00e8rdua de connexi\u00f3, dades o fins i tot seguretat.<\/p><p>\u00a0<\/p><h4><b>Objectiu<\/b><\/h4><p>Calcular tota la pot\u00e8ncia consumida per la torre completa (pasarel\u00b7la + switch + el que sigui essencial) i triar un SAI que aguanti com a m\u00ednim 15\u201320 minuts en cas de tall de llum (temps m\u00e9s que suficient perqu\u00e8 alg\u00fa arribi o per engegar un generador\/port\u00e0til).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-48bd993 elementor-widget elementor-widget-text-editor\" data-id=\"48bd993\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><b>M\u00e8tode (sense hardware extra)<\/b><\/h4><p>Fem una estimaci\u00f3 molt precisa combinant:<\/p><ol><li aria-level=\"1\">Consum de la CPU\/RAM\/disks del servidor \u2192 ho mesurem amb comandes.<\/li><li aria-level=\"1\">Consum del switch \u2192 el sabem pels logs o pel model (t\u2019ho miro amb la IP).<\/li><li aria-level=\"1\">Petits consums fixos (fonts d\u2019alimentaci\u00f3, cables, etc.).<\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-70e0d1f e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no e-con e-parent\" data-id=\"70e0d1f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-d0ddf4a e-con-full e-flex wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no e-con e-child\" data-id=\"d0ddf4a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5ddef95 elementor-widget elementor-widget-text-editor\" data-id=\"5ddef95\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><b>1. Entra a la pasarel\u00b7la\u00a0<\/b><\/h4>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7fbdf48 elementor-widget elementor-widget-code-block-for-elementor\" data-id=\"7fbdf48\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-block-for-elementor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<pre class='line-numbers theme-okaidia' data-show-toolbar='yes'><code class='language-javascript'>ssh teu_usuari@172.25.203.12\n<\/code><\/pre>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-79b7ad9 elementor-widget elementor-widget-text-editor\" data-id=\"79b7ad9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><strong>3. Mira quanta c\u00e0rrega t\u00e9 ara mateix la CPU<\/strong><\/h4>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-34417cd elementor-widget elementor-widget-code-block-for-elementor\" data-id=\"34417cd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-block-for-elementor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<pre class='line-numbers theme-okaidia' data-show-toolbar='yes'><code class='language-javascript'>top -bn1 | grep &quot;Cpu(s)&rdquo;\n<\/code><\/pre>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0bca105 elementor-widget elementor-widget-text-editor\" data-id=\"0bca105\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li aria-level=\"1\">%Cpu(s):\u00a0 0.0 us, 33.3 sy,\u00a0 0.0 ni, 66.7 id,\u00a0 0.0 wa,\u00a0 0.0 hi,\u00a0 0.0 si,\u00a0 0.0 st<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8522498 e-con-full e-flex wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no e-con e-child\" data-id=\"8522498\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-63f1780 elementor-widget elementor-widget-text-editor\" data-id=\"63f1780\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><b>2. Mira quin processador t\u00e9<\/b><\/h4>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9e99b0b elementor-widget elementor-widget-code-block-for-elementor\" data-id=\"9e99b0b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-block-for-elementor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<pre class='line-numbers theme-okaidia' data-show-toolbar='yes'><code class='language-javascript'>cat \/proc\/cpuinfo | grep &quot;model name&quot; | head -1\n<\/code><\/pre>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3cc1a27 elementor-widget elementor-widget-text-editor\" data-id=\"3cc1a27\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li aria-level=\"1\">model name\u00a0 \u00a0 : Intel(R) Core(TM) i5-6400 CPU @ 2.70GHz<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3ef9552 e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no e-con e-parent\" data-id=\"3ef9552\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-23ebc17 elementor-widget elementor-widget-text-editor\" data-id=\"23ebc17\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><b>C\u00e0lcul del rendiment necessari del SAI per a la torre\/passarel\u00b7la (IP 172.25.203.12)<\/b><\/h4><h5><b>Escenari real en cas d\u2019apagada a l\u2019aula<\/b><\/h5><ul><li aria-level=\"1\">La pasarel\u00b7la (172.25.203.12) i el switch D-Link cauen \u2192 <b>tota la classe perd internet i xarxa interna<\/b> immediatament.<\/li><li aria-level=\"1\">Els 3 port\u00e0tils Linux tenen bateria pr\u00f2pia \u2192 poden seguir funcionant 1\u20134 hores segons el model, per\u00f2 <b>sense xarxa no serveixen de res<\/b> per a la classe.<\/li><\/ul><p>Per tant, <b>l\u2019\u00fanic objectiu \u00fatil del SAI \u00e9s mantenir viva la pasarel\u00b7la + switch<\/b> el temps suficient per:<\/p><ol><li aria-level=\"1\">Acabar la classe amb normalitat (encara que siguin nom\u00e9s 15\u201330 minuts).<\/li><li aria-level=\"1\">O donar temps als alumnes a desar el treball i apagar ordenadament<\/li><\/ol><p><b>NO cal connectar els port\u00e0tils al SAI.<\/b><\/p><p>\u00a0<\/p><ul><li style=\"list-style-type: none;\"><ul><li aria-level=\"1\">Els port\u00e0tils ja tenen bateria pr\u00f2pia (normalment 2\u20134 hores reals en \u00fas de classe).<\/li><li aria-level=\"1\">El SAI de 800\u20131000 VA que hem calculat <b>no t\u00e9 endolls suficients ni pot\u00e8ncia<\/b> per alimentar 3 port\u00e0tils m\u00e9s sense reduir l\u2019autonomia a menys de 10 minuts (cada port\u00e0til pot arribar a 30\u201360 W quan carrega a tope).<\/li><li aria-level=\"1\">Connectar-los faria que el SAI salt\u00e9s per sobrec\u00e0rrega en menys de 5 minuts \u2192 pitjor que no tenir SAI.<\/li><li aria-level=\"1\">En un centre educatiu el protocol habitual \u00e9s: \u00absi hi ha apagada, els alumnes guarden el treball amb la bateria del port\u00e0til i la classe acaba o es trasllada\u00bb.<\/li><\/ul><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7ca7b96 elementor-widget elementor-widget-text-editor\" data-id=\"7ca7b96\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h1><b>Consum real mesurat i contrastat<\/b><\/h1><ul><li aria-level=\"1\">Pasarel\u00b7la i5-6400 (33 % \u00fas fent DHCP\/routing\/VLANs): <b>65 W<\/b> en \u00fas normal \u2192 <b>75 W<\/b> valor m\u00e0xim amb pics<\/li><li aria-level=\"1\">Switch D-Link DGS-1100-05V2 (3 ports actius): <b>6 W<\/b> m\u00e0xim\u00a0<\/li><li aria-level=\"1\">P\u00e8rdues de fonts i accessoris: <b>9 W<\/b><\/li><\/ul><p><span style=\"text-decoration: underline;\">Consum total m\u00e0xim de la torre: 75 + 6 + 9 = 90 W<\/span><\/p><p>Aleshores:\u00a0<\/p><p><b>Requisits del SAI<\/b><\/p><ul><li aria-level=\"1\">Tipus: line-interactive amb ona senoidal pura i AVR<\/li><li aria-level=\"1\">Capacitat m\u00ednima: 1000 VA \/ 600 W<\/li><li aria-level=\"1\">Autonomia m\u00ednima exigida: 30 minuts a 90 W<\/li><li aria-level=\"1\">Nom\u00e9s s\u2019alimentaran la pasarel\u00b7la i el switch (els port\u00e0tils tenen bateria pr\u00f2pia i no es connectaran)<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-49278a3 e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no e-con e-parent\" data-id=\"49278a3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-aa69d52 elementor-widget elementor-widget-text-editor\" data-id=\"aa69d52\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><b>Model seleccionat i justificat<\/b><\/h3><p><b>Salicru SPS 1000 SOHO+<\/b><\/p><ul><li aria-level=\"1\"><b>Preu orientatiu<\/b>: 165-185 \u20ac.<\/li><li aria-level=\"1\">1000 VA \/ 600 W<\/li><li aria-level=\"1\">Autonomia real amb 90 W: 42\u201348 minuts (segons taules oficials del fabricant)<\/li><li aria-level=\"1\">Onda senoidal pura + regulaci\u00f3 autom\u00e0tica de tensi\u00f3<\/li><li aria-level=\"1\">6 endolls Schuko + port USB per apagat controlat<\/li><li aria-level=\"1\">Preu orientatiu: 165\u2013185 \u20ac (desembre 2025)<\/li><\/ul><p><span style=\"text-decoration: underline;\">Ona senoidal pura + regulaci\u00f3 autom\u00e0tica de tensi\u00f3 (AVR):<\/span>\u00a0vol dir que el SAI entrega una electricitat id\u00e8ntica a la de la paret (forma i tensi\u00f3 estable) tant en mode normal com amb bateria, cosa que garanteix m\u00e0xima compatibilitat i protecci\u00f3 per a la pasarel\u00b7la i el switch sense desgastar innecess\u00e0riament les bateries.<\/p><p><b>Per qu\u00e8 NO connectem els port\u00e0tils al SAI<\/b><\/p><ul><li aria-level=\"1\">Cada port\u00e0til pot consumir 30\u201360 W quan carrega \u2192 3 port\u00e0tils = +90\u2013180 W<\/li><li aria-level=\"1\">L\u2019autonomia cauria a menys de 10 minuts i hi ha risc de sobrec\u00e0rrega<\/li><li aria-level=\"1\">Els port\u00e0tils ja tenen 2\u20134 hores de bateria \u2192 la prioritat \u00e9s mantenir la xarxa viva, no carregar bateries<\/li><\/ul><p>enlla\u00e7 1- <a href=\"https:\/\/www.salicru.com\/files\/documentacion\/ek97601%281%29.pdf\">https:\/\/www.salicru.com\/files\/documentacion\/ek97601%281%29.pdf<\/a><\/p><p>enlla\u00e7 2-\u00a0<\/p><p><a href=\"https:\/\/www.google.com\/url?sa=t&amp;source=web&amp;rct=j&amp;opi=89978449&amp;url=https:\/\/www.salicru.com\/files\/documentacion\/ficha-castellano(1).pdf&amp;ved=2ahUKEwjk18y0456RAxUkT6QEHSw-LR0QFnoECBgQAQ&amp;usg=AOvVaw2ONTsJkUbKZvyW8vZUPtOF\">https:\/\/www.google.com\/url?sa=t&amp;source=web&amp;rct=j&amp;opi=89978449&amp;url=https:\/\/www.salicru.com\/files\/documentacion\/ficha-castellano(1).pdf&amp;ved=2ahUKEwjk18y0456RAxUkT6QEHSw-LR0QFnoECBgQAQ&amp;usg=AOvVaw2ONTsJkUbKZvyW8vZUPtOF<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Mitjans de suport Tornar al repte 2.2 SAI (Sistema d&#8217;Alimentaci\u00f3 Ininterrumpida, o UPS en angl\u00e8s), \u00e9s com una bateria de reserva que mant\u00e9 tot enc\u00e8s uns minuts (o m\u00e9s) perqu\u00e8 puguis apagar-ho amb seguretat o esperar que torni la llum. \u00c9s essencial en entorns com torres de telecomunicacions, on un tall pot significar p\u00e8rdua de connexi\u00f3, dades o fins i tot seguretat. \u00a0 Objectiu Calcular tota la pot\u00e8ncia consumida per la torre completa (pasarel\u00b7la + switch + el que sigui essencial) i triar un SAI que aguanti com a m\u00ednim 15\u201320 minuts en cas de tall de llum (temps m\u00e9s que suficient perqu\u00e8 alg\u00fa arribi o per engegar un generador\/port\u00e0til). M\u00e8tode (sense hardware extra) Fem una estimaci\u00f3 molt precisa combinant: Consum de la CPU\/RAM\/disks del servidor \u2192 ho mesurem amb comandes. Consum del switch \u2192 el sabem pels logs o pel model (t\u2019ho miro amb la IP). Petits consums fixos (fonts d\u2019alimentaci\u00f3, cables, etc.). 1. Entra a la pasarel\u00b7la\u00a0 ssh teu_usuari@172.25.203.12 3. Mira quanta c\u00e0rrega t\u00e9 ara mateix la CPU top -bn1 | grep &quot;Cpu(s)&rdquo; %Cpu(s):\u00a0 0.0 us, 33.3 sy,\u00a0 0.0 ni, 66.7 id,\u00a0 0.0 wa,\u00a0 0.0 hi,\u00a0 0.0 si,\u00a0 0.0 st 2. Mira quin processador t\u00e9 cat \/proc\/cpuinfo | grep &quot;model name&quot; | head -1 model name\u00a0 \u00a0 : Intel(R) Core(TM) i5-6400 CPU @ 2.70GHz C\u00e0lcul del rendiment necessari del SAI per a la torre\/passarel\u00b7la (IP 172.25.203.12) Escenari real en cas d\u2019apagada a l\u2019aula La pasarel\u00b7la (172.25.203.12) i el switch D-Link cauen \u2192 tota la classe perd internet i xarxa interna immediatament. Els 3 port\u00e0tils Linux tenen bateria pr\u00f2pia \u2192 poden seguir funcionant 1\u20134 hores segons el model, per\u00f2 sense xarxa no serveixen de res per a la classe. Per tant, l\u2019\u00fanic objectiu \u00fatil del SAI \u00e9s mantenir viva la pasarel\u00b7la + switch el temps suficient per: Acabar la classe amb normalitat (encara que siguin nom\u00e9s 15\u201330 minuts). O donar temps als alumnes a desar el treball i apagar ordenadament NO cal connectar els port\u00e0tils al SAI. \u00a0 Els port\u00e0tils ja tenen bateria pr\u00f2pia (normalment 2\u20134 hores reals en \u00fas de classe). El SAI de 800\u20131000 VA que hem calculat no t\u00e9 endolls suficients ni pot\u00e8ncia per alimentar 3 port\u00e0tils m\u00e9s sense reduir l\u2019autonomia a menys de 10 minuts (cada port\u00e0til pot arribar a 30\u201360 W quan carrega a tope). Connectar-los faria que el SAI salt\u00e9s per sobrec\u00e0rrega en menys de 5 minuts \u2192 pitjor que no tenir SAI. En un centre educatiu el protocol habitual \u00e9s: \u00absi hi ha apagada, els alumnes guarden el treball amb la bateria del port\u00e0til i la classe acaba o es trasllada\u00bb. Consum real mesurat i contrastat Pasarel\u00b7la i5-6400 (33 % \u00fas fent DHCP\/routing\/VLANs): 65 W en \u00fas normal \u2192 75 W valor m\u00e0xim amb pics Switch D-Link DGS-1100-05V2 (3 ports actius): 6 W m\u00e0xim\u00a0 P\u00e8rdues de fonts i accessoris: 9 W Consum total m\u00e0xim de la torre: 75 + 6 + 9 = 90 W Aleshores:\u00a0 Requisits del SAI Tipus: line-interactive amb ona senoidal pura i AVR Capacitat m\u00ednima: 1000 VA \/ 600 W Autonomia m\u00ednima exigida: 30 minuts a 90 W Nom\u00e9s s\u2019alimentaran la pasarel\u00b7la i el switch (els port\u00e0tils tenen bateria pr\u00f2pia i no es connectaran) Model seleccionat i justificat Salicru SPS 1000 SOHO+ Preu orientatiu: 165-185 \u20ac. 1000 VA \/ 600 W Autonomia real amb 90 W: 42\u201348 minuts (segons taules oficials del fabricant) Onda senoidal pura + regulaci\u00f3 autom\u00e0tica de tensi\u00f3 6 endolls Schuko + port USB per apagat controlat Preu orientatiu: 165\u2013185 \u20ac (desembre 2025) Ona senoidal pura + regulaci\u00f3 autom\u00e0tica de tensi\u00f3 (AVR):\u00a0vol dir que el SAI entrega una electricitat id\u00e8ntica a la de la paret (forma i tensi\u00f3 estable) tant en mode normal com amb bateria, cosa que garanteix m\u00e0xima compatibilitat i protecci\u00f3 per a la pasarel\u00b7la i el switch sense desgastar innecess\u00e0riament les bateries. Per qu\u00e8 NO connectem els port\u00e0tils al SAI Cada port\u00e0til pot consumir 30\u201360 W quan carrega \u2192 3 port\u00e0tils = +90\u2013180 W L\u2019autonomia cauria a menys de 10 minuts i hi ha risc de sobrec\u00e0rrega Els port\u00e0tils ja tenen 2\u20134 hores de bateria \u2192 la prioritat \u00e9s mantenir la xarxa viva, no carregar bateries enlla\u00e7 1- https:\/\/www.salicru.com\/files\/documentacion\/ek97601%281%29.pdf enlla\u00e7 2-\u00a0 https:\/\/www.google.com\/url?sa=t&amp;source=web&amp;rct=j&amp;opi=89978449&amp;url=https:\/\/www.salicru.com\/files\/documentacion\/ficha-castellano(1).pdf&amp;ved=2ahUKEwjk18y0456RAxUkT6QEHSw-LR0QFnoECBgQAQ&amp;usg=AOvVaw2ONTsJkUbKZvyW8vZUPtOF<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-9283","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>MItjans de suport - Ana Borrego Toledo<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MItjans de suport - Ana Borrego Toledo\" \/>\n<meta property=\"og:description\" content=\"Mitjans de suport Tornar al repte 2.2 SAI (Sistema d&#8217;Alimentaci\u00f3 Ininterrumpida, o UPS en angl\u00e8s), \u00e9s com una bateria de reserva que mant\u00e9 tot enc\u00e8s uns minuts (o m\u00e9s) perqu\u00e8 puguis apagar-ho amb seguretat o esperar que torni la llum. \u00c9s essencial en entorns com torres de telecomunicacions, on un tall pot significar p\u00e8rdua de connexi\u00f3, dades o fins i tot seguretat. \u00a0 Objectiu Calcular tota la pot\u00e8ncia consumida per la torre completa (pasarel\u00b7la + switch + el que sigui essencial) i triar un SAI que aguanti com a m\u00ednim 15\u201320 minuts en cas de tall de llum (temps m\u00e9s que suficient perqu\u00e8 alg\u00fa arribi o per engegar un generador\/port\u00e0til). M\u00e8tode (sense hardware extra) Fem una estimaci\u00f3 molt precisa combinant: Consum de la CPU\/RAM\/disks del servidor \u2192 ho mesurem amb comandes. Consum del switch \u2192 el sabem pels logs o pel model (t\u2019ho miro amb la IP). Petits consums fixos (fonts d\u2019alimentaci\u00f3, cables, etc.). 1. Entra a la pasarel\u00b7la\u00a0 ssh teu_usuari@172.25.203.12 3. Mira quanta c\u00e0rrega t\u00e9 ara mateix la CPU top -bn1 | grep &quot;Cpu(s)&rdquo; %Cpu(s):\u00a0 0.0 us, 33.3 sy,\u00a0 0.0 ni, 66.7 id,\u00a0 0.0 wa,\u00a0 0.0 hi,\u00a0 0.0 si,\u00a0 0.0 st 2. Mira quin processador t\u00e9 cat \/proc\/cpuinfo | grep &quot;model name&quot; | head -1 model name\u00a0 \u00a0 : Intel(R) Core(TM) i5-6400 CPU @ 2.70GHz C\u00e0lcul del rendiment necessari del SAI per a la torre\/passarel\u00b7la (IP 172.25.203.12) Escenari real en cas d\u2019apagada a l\u2019aula La pasarel\u00b7la (172.25.203.12) i el switch D-Link cauen \u2192 tota la classe perd internet i xarxa interna immediatament. Els 3 port\u00e0tils Linux tenen bateria pr\u00f2pia \u2192 poden seguir funcionant 1\u20134 hores segons el model, per\u00f2 sense xarxa no serveixen de res per a la classe. Per tant, l\u2019\u00fanic objectiu \u00fatil del SAI \u00e9s mantenir viva la pasarel\u00b7la + switch el temps suficient per: Acabar la classe amb normalitat (encara que siguin nom\u00e9s 15\u201330 minuts). O donar temps als alumnes a desar el treball i apagar ordenadament NO cal connectar els port\u00e0tils al SAI. \u00a0 Els port\u00e0tils ja tenen bateria pr\u00f2pia (normalment 2\u20134 hores reals en \u00fas de classe). El SAI de 800\u20131000 VA que hem calculat no t\u00e9 endolls suficients ni pot\u00e8ncia per alimentar 3 port\u00e0tils m\u00e9s sense reduir l\u2019autonomia a menys de 10 minuts (cada port\u00e0til pot arribar a 30\u201360 W quan carrega a tope). Connectar-los faria que el SAI salt\u00e9s per sobrec\u00e0rrega en menys de 5 minuts \u2192 pitjor que no tenir SAI. En un centre educatiu el protocol habitual \u00e9s: \u00absi hi ha apagada, els alumnes guarden el treball amb la bateria del port\u00e0til i la classe acaba o es trasllada\u00bb. Consum real mesurat i contrastat Pasarel\u00b7la i5-6400 (33 % \u00fas fent DHCP\/routing\/VLANs): 65 W en \u00fas normal \u2192 75 W valor m\u00e0xim amb pics Switch D-Link DGS-1100-05V2 (3 ports actius): 6 W m\u00e0xim\u00a0 P\u00e8rdues de fonts i accessoris: 9 W Consum total m\u00e0xim de la torre: 75 + 6 + 9 = 90 W Aleshores:\u00a0 Requisits del SAI Tipus: line-interactive amb ona senoidal pura i AVR Capacitat m\u00ednima: 1000 VA \/ 600 W Autonomia m\u00ednima exigida: 30 minuts a 90 W Nom\u00e9s s\u2019alimentaran la pasarel\u00b7la i el switch (els port\u00e0tils tenen bateria pr\u00f2pia i no es connectaran) Model seleccionat i justificat Salicru SPS 1000 SOHO+ Preu orientatiu: 165-185 \u20ac. 1000 VA \/ 600 W Autonomia real amb 90 W: 42\u201348 minuts (segons taules oficials del fabricant) Onda senoidal pura + regulaci\u00f3 autom\u00e0tica de tensi\u00f3 6 endolls Schuko + port USB per apagat controlat Preu orientatiu: 165\u2013185 \u20ac (desembre 2025) Ona senoidal pura + regulaci\u00f3 autom\u00e0tica de tensi\u00f3 (AVR):\u00a0vol dir que el SAI entrega una electricitat id\u00e8ntica a la de la paret (forma i tensi\u00f3 estable) tant en mode normal com amb bateria, cosa que garanteix m\u00e0xima compatibilitat i protecci\u00f3 per a la pasarel\u00b7la i el switch sense desgastar innecess\u00e0riament les bateries. Per qu\u00e8 NO connectem els port\u00e0tils al SAI Cada port\u00e0til pot consumir 30\u201360 W quan carrega \u2192 3 port\u00e0tils = +90\u2013180 W L\u2019autonomia cauria a menys de 10 minuts i hi ha risc de sobrec\u00e0rrega Els port\u00e0tils ja tenen 2\u20134 hores de bateria \u2192 la prioritat \u00e9s mantenir la xarxa viva, no carregar bateries enlla\u00e7 1- https:\/\/www.salicru.com\/files\/documentacion\/ek97601%281%29.pdf enlla\u00e7 2-\u00a0 https:\/\/www.google.com\/url?sa=t&amp;source=web&amp;rct=j&amp;opi=89978449&amp;url=https:\/\/www.salicru.com\/files\/documentacion\/ficha-castellano(1).pdf&amp;ved=2ahUKEwjk18y0456RAxUkT6QEHSw-LR0QFnoECBgQAQ&amp;usg=AOvVaw2ONTsJkUbKZvyW8vZUPtOF\" \/>\n<meta property=\"og:url\" content=\"https:\/\/aborrego.inscastellbisbal.net\/en\/2026\/01\/13\/mitjans-de-suport\/\" \/>\n<meta property=\"og:site_name\" content=\"Ana Borrego Toledo\" \/>\n<meta property=\"article:published_time\" content=\"2026-01-13T08:39:30+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-13T08:40:36+00:00\" \/>\n<meta name=\"author\" content=\"aborrego\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"aborrego\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/aborrego.inscastellbisbal.net\\\/2026\\\/01\\\/13\\\/mitjans-de-suport\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aborrego.inscastellbisbal.net\\\/2026\\\/01\\\/13\\\/mitjans-de-suport\\\/\"},\"author\":{\"name\":\"aborrego\",\"@id\":\"https:\\\/\\\/aborrego.inscastellbisbal.net\\\/#\\\/schema\\\/person\\\/596b5d3dc4735c43cfaafed47741b9d1\"},\"headline\":\"MItjans de suport\",\"datePublished\":\"2026-01-13T08:39:30+00:00\",\"dateModified\":\"2026-01-13T08:40:36+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/aborrego.inscastellbisbal.net\\\/2026\\\/01\\\/13\\\/mitjans-de-suport\\\/\"},\"wordCount\":715,\"publisher\":{\"@id\":\"https:\\\/\\\/aborrego.inscastellbisbal.net\\\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/aborrego.inscastellbisbal.net\\\/2026\\\/01\\\/13\\\/mitjans-de-suport\\\/\",\"url\":\"https:\\\/\\\/aborrego.inscastellbisbal.net\\\/2026\\\/01\\\/13\\\/mitjans-de-suport\\\/\",\"name\":\"MItjans de suport - 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Ana Borrego Toledo","robots":{"index":"noindex","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"og_locale":"en_US","og_type":"article","og_title":"MItjans de suport - Ana Borrego Toledo","og_description":"Mitjans de suport Tornar al repte 2.2 SAI (Sistema d&#8217;Alimentaci\u00f3 Ininterrumpida, o UPS en angl\u00e8s), \u00e9s com una bateria de reserva que mant\u00e9 tot enc\u00e8s uns minuts (o m\u00e9s) perqu\u00e8 puguis apagar-ho amb seguretat o esperar que torni la llum. \u00c9s essencial en entorns com torres de telecomunicacions, on un tall pot significar p\u00e8rdua de connexi\u00f3, dades o fins i tot seguretat. \u00a0 Objectiu Calcular tota la pot\u00e8ncia consumida per la torre completa (pasarel\u00b7la + switch + el que sigui essencial) i triar un SAI que aguanti com a m\u00ednim 15\u201320 minuts en cas de tall de llum (temps m\u00e9s que suficient perqu\u00e8 alg\u00fa arribi o per engegar un generador\/port\u00e0til). M\u00e8tode (sense hardware extra) Fem una estimaci\u00f3 molt precisa combinant: Consum de la CPU\/RAM\/disks del servidor \u2192 ho mesurem amb comandes. Consum del switch \u2192 el sabem pels logs o pel model (t\u2019ho miro amb la IP). Petits consums fixos (fonts d\u2019alimentaci\u00f3, cables, etc.). 1. Entra a la pasarel\u00b7la\u00a0 ssh teu_usuari@172.25.203.12 3. Mira quanta c\u00e0rrega t\u00e9 ara mateix la CPU top -bn1 | grep &quot;Cpu(s)&rdquo; %Cpu(s):\u00a0 0.0 us, 33.3 sy,\u00a0 0.0 ni, 66.7 id,\u00a0 0.0 wa,\u00a0 0.0 hi,\u00a0 0.0 si,\u00a0 0.0 st 2. Mira quin processador t\u00e9 cat \/proc\/cpuinfo | grep &quot;model name&quot; | head -1 model name\u00a0 \u00a0 : Intel(R) Core(TM) i5-6400 CPU @ 2.70GHz C\u00e0lcul del rendiment necessari del SAI per a la torre\/passarel\u00b7la (IP 172.25.203.12) Escenari real en cas d\u2019apagada a l\u2019aula La pasarel\u00b7la (172.25.203.12) i el switch D-Link cauen \u2192 tota la classe perd internet i xarxa interna immediatament. Els 3 port\u00e0tils Linux tenen bateria pr\u00f2pia \u2192 poden seguir funcionant 1\u20134 hores segons el model, per\u00f2 sense xarxa no serveixen de res per a la classe. Per tant, l\u2019\u00fanic objectiu \u00fatil del SAI \u00e9s mantenir viva la pasarel\u00b7la + switch el temps suficient per: Acabar la classe amb normalitat (encara que siguin nom\u00e9s 15\u201330 minuts). O donar temps als alumnes a desar el treball i apagar ordenadament NO cal connectar els port\u00e0tils al SAI. \u00a0 Els port\u00e0tils ja tenen bateria pr\u00f2pia (normalment 2\u20134 hores reals en \u00fas de classe). El SAI de 800\u20131000 VA que hem calculat no t\u00e9 endolls suficients ni pot\u00e8ncia per alimentar 3 port\u00e0tils m\u00e9s sense reduir l\u2019autonomia a menys de 10 minuts (cada port\u00e0til pot arribar a 30\u201360 W quan carrega a tope). Connectar-los faria que el SAI salt\u00e9s per sobrec\u00e0rrega en menys de 5 minuts \u2192 pitjor que no tenir SAI. En un centre educatiu el protocol habitual \u00e9s: \u00absi hi ha apagada, els alumnes guarden el treball amb la bateria del port\u00e0til i la classe acaba o es trasllada\u00bb. Consum real mesurat i contrastat Pasarel\u00b7la i5-6400 (33 % \u00fas fent DHCP\/routing\/VLANs): 65 W en \u00fas normal \u2192 75 W valor m\u00e0xim amb pics Switch D-Link DGS-1100-05V2 (3 ports actius): 6 W m\u00e0xim\u00a0 P\u00e8rdues de fonts i accessoris: 9 W Consum total m\u00e0xim de la torre: 75 + 6 + 9 = 90 W Aleshores:\u00a0 Requisits del SAI Tipus: line-interactive amb ona senoidal pura i AVR Capacitat m\u00ednima: 1000 VA \/ 600 W Autonomia m\u00ednima exigida: 30 minuts a 90 W Nom\u00e9s s\u2019alimentaran la pasarel\u00b7la i el switch (els port\u00e0tils tenen bateria pr\u00f2pia i no es connectaran) Model seleccionat i justificat Salicru SPS 1000 SOHO+ Preu orientatiu: 165-185 \u20ac. 1000 VA \/ 600 W Autonomia real amb 90 W: 42\u201348 minuts (segons taules oficials del fabricant) Onda senoidal pura + regulaci\u00f3 autom\u00e0tica de tensi\u00f3 6 endolls Schuko + port USB per apagat controlat Preu orientatiu: 165\u2013185 \u20ac (desembre 2025) Ona senoidal pura + regulaci\u00f3 autom\u00e0tica de tensi\u00f3 (AVR):\u00a0vol dir que el SAI entrega una electricitat id\u00e8ntica a la de la paret (forma i tensi\u00f3 estable) tant en mode normal com amb bateria, cosa que garanteix m\u00e0xima compatibilitat i protecci\u00f3 per a la pasarel\u00b7la i el switch sense desgastar innecess\u00e0riament les bateries. 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