{"id":19333,"date":"2026-10-17T11:18:04","date_gmt":"2026-10-17T03:18:04","guid":{"rendered":"https:\/\/www.wehopower.com\/news\/telecom-backup-inverter-ac-auxiliary-rfq\/"},"modified":"2026-10-17T11:18:04","modified_gmt":"2026-10-17T03:18:04","slug":"telecom-backup-inverter-ac-auxiliary-rfq","status":"publish","type":"news","link":"https:\/\/www.wehopower.com\/es\/news\/telecom-backup-inverter-ac-auxiliary-rfq\/","title":{"rendered":"Telecom Backup Inverters: Separate AC Auxiliaries from the DC Plant"},"content":{"rendered":"<article>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Tabla de contenido<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar tabla de contenidos\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Palanca<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.wehopower.com\/es\/news\/telecom-backup-inverter-ac-auxiliary-rfq\/#Telecom_Backup_Inverters_Separate_AC_Auxiliaries_from_the_DC_Plant\" >Telecom Backup Inverters: Separate AC Auxiliaries from the DC Plant<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.wehopower.com\/es\/news\/telecom-backup-inverter-ac-auxiliary-rfq\/#Separate_the_three_interfaces_in_the_RFQ\" >Separate the three interfaces in the RFQ<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.wehopower.com\/es\/news\/telecom-backup-inverter-ac-auxiliary-rfq\/#Identify_the_auxiliary_load_before_selecting_the_waveform\" >Identify the auxiliary load before selecting the waveform<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.wehopower.com\/es\/news\/telecom-backup-inverter-ac-auxiliary-rfq\/#Turn_the_uptime_target_into_an_energy_requirement\" >Turn the uptime target into an energy requirement<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.wehopower.com\/es\/news\/telecom-backup-inverter-ac-auxiliary-rfq\/#Specify_interruption_fault_and_recovery_behaviour\" >Specify interruption, fault and recovery behaviour<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.wehopower.com\/es\/news\/telecom-backup-inverter-ac-auxiliary-rfq\/#Control_installation_and_repeat-order_changes\" >Control installation and repeat-order changes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.wehopower.com\/es\/news\/telecom-backup-inverter-ac-auxiliary-rfq\/#Buyer_FAQ\" >Buyer FAQ<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.wehopower.com\/es\/news\/telecom-backup-inverter-ac-auxiliary-rfq\/#Can_the_photographed_12_V_unit_connect_directly_to_a_%E2%88%9248_V_telecom_bus\" >Can the photographed 12 V unit connect directly to a \u221248 V telecom bus?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.wehopower.com\/es\/news\/telecom-backup-inverter-ac-auxiliary-rfq\/#Does_a_300_W_rating_establish_four_hours_of_backup\" >Does a 300 W rating establish four hours of backup?<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"Telecom_Backup_Inverters_Separate_AC_Auxiliaries_from_the_DC_Plant\"><\/span>Telecom Backup Inverters: Separate AC Auxiliaries from the DC Plant<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<figure data-image-role=\"application_b\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/02-application-b-101.png\" alt=\"Telecom Backup Inverters: Separate AC Auxiliaries from the DC Plant  title=\" width=\"1536\" height=\"1024\" telecom backup inverters: separate ac auxiliaries from the dc plant title=\"\"><figcaption>Conceptual auxiliary-equipment layout, not a qualified telecom installation or proof of continuity, load compatibility or backup duration.<\/figcaption><\/figure>\n<p>A telecom backup enquiry should distinguish the site\u2019s DC network from the AC auxiliaries that actually need an inverter. Start with a load inventory and one-line architecture, not a single \u201cbase-station watts\u201d figure. A small battery inverter may be evaluated for a defined auxiliary task; it does not automatically become a telecom DC plant, a rectifier, a UPS or a redundant site-power system.<\/p>\n<p>The WHM-300-C example makes that distinction concrete. The photographed unit is marked 12 V, \u201cModified Sine Wave Inverter,\u201d 300 W and \u201cSurge Power 600W.\u201d Its source sheet gives a 10\u201315.5 V input range for the 12 V option. It is not a direct substitute for a \u221248 V telecom power interface, and this article does not claim telecom qualification for the sample.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Separate_the_three_interfaces_in_the_RFQ\"><\/span>Separate the three interfaces in the RFQ<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table>\n<thead>\n<tr>\n<th>Interface<\/th>\n<th>Information to obtain<\/th>\n<th>Unacceptable assumption<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Site DC source<\/td>\n<td>Voltage range, polarity\/reference, charging conditions and protective distribution<\/td>\n<td>\u201c48 V\u201d and \u201c12 V\u201d products can share the same direct input<\/td>\n<\/tr>\n<tr>\n<td>Required AC auxiliary<\/td>\n<td>Exact equipment, voltage, frequency, waveform acceptance and startup demand<\/td>\n<td>Every small AC load accepts modified sine wave<\/td>\n<\/tr>\n<tr>\n<td>Continuity and supervision<\/td>\n<td>Allowed interruption, restart behaviour, alarms and maintenance needs<\/td>\n<td>An inverter socket implies UPS transfer or remote monitoring<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><a href=\"https:\/\/portal.etsi.org\/webapp\/WorkProgram\/Report_WorkItem.asp?WKI_ID=69496\" target=\"_blank\" rel=\"noopener\">ETSI\u2019s EN 300 132-2 record<\/a> identifies a specific \u221248 V DC interface for ICT equipment. That scope illustrates why the reference and electrical interface belong in a telecom specification. It is not a compliance claim for this WHM unit, nor a reason to assume every device at the site uses that interface.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Identify_the_auxiliary_load_before_selecting_the_waveform\"><\/span>Identify the auxiliary load before selecting the waveform<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>List which loads need AC during an outage and which can remain on their specified DC supply. An AC service instrument, local maintenance appliance and network equipment power input can have very different requirements. Obtain the receiving equipment manufacturer\u2019s permitted voltage, frequency and waveform, including any restrictions, before offering a modified-sine inverter.<\/p>\n<p>The WHM sheet presents separate ordered AC-output and DC-input variants. The socket appearance does not identify the actual output voltage or frequency. Request the offered unit\u2019s configuration record and label photograph. Do not replace the photographed 12 V sample with a 48 V option in a drawing while keeping the same physical evidence.<\/p>\n<figure data-image-role=\"product_detail\"><img decoding=\"async\" src=\"https:\/\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/03-product-detail-101.png\" alt=\"Telecom Backup Inverters: Separate AC Auxiliaries from the DC Plant  title=\" width=\"1536\" height=\"1024\" telecom backup inverters: separate ac auxiliaries from the dc plant title=\"\"><figcaption>Identify the exact input and output options; the small C chassis does not establish site-level backup qualification.<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Turn_the_uptime_target_into_an_energy_requirement\"><\/span>Turn the uptime target into an energy requirement<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Define the essential loads, their simultaneous operating states and required duration. As a planning example, a constant 60 W auxiliary operating for four hours consumes 240 Wh at its input. That is load energy, not a battery capacity recommendation: inverter losses, idle demand, battery operating limits and reserve requirements still have to be included using the actual system data.<\/p>\n<p>Use the load schedule to decide whether an inverter is even the appropriate path. Avoid adding an AC conversion step solely because the available unit has a familiar outlet. Any alternative DC path must be designed and qualified for the receiving equipment; it cannot be improvised from nominal voltage alone.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Specify_interruption_fault_and_recovery_behaviour\"><\/span>Specify interruption, fault and recovery behaviour<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Ask how the auxiliary should behave when normal power disappears, the battery reaches its permitted limit or power returns. State the maximum interruption the load can tolerate and whether it restarts automatically. The available WHM source does not establish an automatic transfer time, charger function, remote alarm interface or N+1 operation.<\/p>\n<p>If the project requires uninterrupted service or supervised redundancy, request a system explicitly designed for those functions. Do not bridge outputs or add an undocumented transfer arrangement during commissioning. The complete power path and protective measures need an approved design.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Control_installation_and_repeat-order_changes\"><\/span>Control installation and repeat-order changes<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The source identifies the compact C chassis as 162 \u00d7 106 \u00d7 63 mm, with a front AC interface and rear DC posts beside the fan. Keep the original mounting flanges, fan path and cable access in the equipment layout. The source does not establish an outdoor environmental rating or a completed telecom-cabinet thermal test.<\/p>\n<p>For an auxiliary evaluation, agree checks of identity, load compatibility, startup, steady operation, low-input response and recovery in the intended cabinet. Record the actual AC output option, battery arrangement and receiving equipment revision. Retain the accepted sample and specify notification of substitutions that could affect waveform, protection, cooling or terminals.<\/p>\n<figure data-image-role=\"engineering_context\"><img decoding=\"async\" src=\"https:\/\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/04-engineering-context-105.png\" alt=\"Telecom Backup Inverters: Separate AC Auxiliaries from the DC Plant  title=\" width=\"1536\" height=\"1024\" telecom backup inverters: separate ac auxiliaries from the dc plant title=\"\"><figcaption>Define an auxiliary role and its acceptance limits before treating an inverter as part of a site-power solution.<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Buyer_FAQ\"><\/span>Buyer FAQ<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Can_the_photographed_12_V_unit_connect_directly_to_a_%E2%88%9248_V_telecom_bus\"><\/span>Can the photographed 12 V unit connect directly to a \u221248 V telecom bus?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>No. The sample\u2019s documented input range does not match that interface. Specify a suitable engineered architecture; neither the model family\u2019s alternative options nor a connector change resolves the mismatch.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Does_a_300_W_rating_establish_four_hours_of_backup\"><\/span>Does a 300 W rating establish four hours of backup?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>No. Watts describe power, while duration depends on load energy and the usable storage and conversion system. Specify both the load profile and the required service period.<\/p>\n<p>Send <a href=\"https:\/\/www.wehopower.com\/es\/contact\/\">WEHO an auxiliary-power enquiry<\/a> with the site DC interface, exact AC loads, waveform requirements, interruption target and required documentation. Ask whether an offered inverter is appropriate for that limited role before discussing a repeated supply order; no site-level reliability or delivery commitment follows from this example.<\/p>\n<\/article>","protected":false},"excerpt":{"rendered":"<p>Specify DC interface, AC load compatibility, energy and continuity requirements before evaluating a telecom-site auxiliary inverter.<\/p>","protected":false},"author":2,"featured_media":19330,"parent":0,"menu_order":41,"comment_status":"","ping_status":"","template":"","format":"standard","meta":{"_acf_changed":false,"_joinchat":[],"footnotes":""},"news_category":[149,284],"class_list":["post-19333","news","type-news","status-publish","format-standard","has-post-thumbnail","hentry","news_category-blog","news_category-product-articles","entry"],"acf":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/www.wehopower.com\/es\/wp-json\/wp\/v2\/news\/19333","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wehopower.com\/es\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/www.wehopower.com\/es\/wp-json\/wp\/v2\/types\/news"}],"author":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/es\/wp-json\/wp\/v2\/comments?post=19333"}],"version-history":[{"count":0,"href":"https:\/\/www.wehopower.com\/es\/wp-json\/wp\/v2\/news\/19333\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/es\/wp-json\/wp\/v2\/media\/19330"}],"wp:attachment":[{"href":"https:\/\/www.wehopower.com\/es\/wp-json\/wp\/v2\/media?parent=19333"}],"wp:term":[{"taxonomy":"news_category","embeddable":true,"href":"https:\/\/www.wehopower.com\/es\/wp-json\/wp\/v2\/news_category?post=19333"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}