{"id":18989,"date":"2026-10-12T16:39:39","date_gmt":"2026-10-12T08:39:39","guid":{"rendered":"https:\/\/www.wehopower.com\/news\/remote-sense-vs-remote-on-off-do-not-treat-sp-100-12-r-c-as-sense-terminals\/"},"modified":"2026-10-19T12:04:45","modified_gmt":"2026-10-19T04:04:45","slug":"remote-sense-vs-remote-on-off-do-not-treat-sp-100-12-r-c-as-sense-terminals","status":"publish","type":"news","link":"https:\/\/www.wehopower.com\/ms\/news\/remote-sense-vs-remote-on-off-do-not-treat-sp-100-12-r-c-as-sense-terminals\/","title":{"rendered":"Remote Sense vs Remote On\/Off: Do Not Treat SP-100-12 R.C. as Sense Terminals"},"content":{"rendered":"<article>\n<p class=\"updated\">Last updated: October 10, 2026<\/p>\n<p class=\"quick-answer\"><strong>Quick answer:<\/strong> A remote-sense requirement is not satisfied by an R.C. marking. The retained SP-100 sheet identifies optional CN3 as Remote ON\/OFF, with RC\u2212 and RC+ assignments. It does not assign sense terminals. Confirm the ordered interface before approving a harness; the sample&#8217;s optional print does not prove a fitted connector.<\/p>\n<p>When an OEM request says \u201cremote sense power supply,\u201d establish the intended function before choosing a connection. A drawing labelled remote control may concern a different requirement. For this SP-100-12 review, the decisive question is whether the applicable ordered documentation supports the requested interface\u2014not whether two nearby marks look like a pair of sense connections.<\/p>\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\">Jadual Kandungan<\/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=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Togol<\/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-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.wehopower.com\/ms\/news\/remote-sense-vs-remote-on-off-do-not-treat-sp-100-12-r-c-as-sense-terminals\/#Remote_sense_and_remote_onoff_answer_different_questions\" >Remote sense and remote on\/off answer different questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.wehopower.com\/ms\/news\/remote-sense-vs-remote-on-off-do-not-treat-sp-100-12-r-c-as-sense-terminals\/#Keep_the_photographed_sample_and_the_interface_document_together\" >Keep the photographed sample and the interface document together<\/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\/ms\/news\/remote-sense-vs-remote-on-off-do-not-treat-sp-100-12-r-c-as-sense-terminals\/#Write_the_requirement_as_a_function_not_an_abbreviation\" >Write the requirement as a function, not an abbreviation<\/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\/ms\/news\/remote-sense-vs-remote-on-off-do-not-treat-sp-100-12-r-c-as-sense-terminals\/#Use_the_layout_to_identify_the_review_location_not_to_prove_a_function\" >Use the layout to identify the review location, not to prove a function<\/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\/ms\/news\/remote-sense-vs-remote-on-off-do-not-treat-sp-100-12-r-c-as-sense-terminals\/#Close_the_evidence_gap_before_the_harness_is_released\" >Close the evidence gap before the harness is released<\/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\/ms\/news\/remote-sense-vs-remote-on-off-do-not-treat-sp-100-12-r-c-as-sense-terminals\/#Conclusion\" >Kesimpulan<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Remote_sense_and_remote_onoff_answer_different_questions\"><\/span>Remote sense and remote on\/off answer different questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Remote sensing uses a specified measurement point to account for voltage drop in the output leads. <a href=\"https:\/\/www.ni.com\/en\/shop\/electronic-test-instrumentation\/power-supplies-and-loads\/what-are-programmable-power-supplies\/remote-sense-ripple-noise.html\" target=\"_blank\" rel=\"noopener\">The referenced guide to remote sensing<\/a> explains this general principle. It is not evidence that SP-100-12 provides that function. A supported sense interface requires its own model-specific assignments, conditions and limitations.<\/p>\n<p>Remote on\/off concerns a documented output-control function. The <a href=\"https:\/\/www.wehopower.com\/ms\/product\/china-wholesaler-indoor-sp-100-transformer-power-supply\/\">WEHO SP-100 page<\/a> lists optional remote control, while the <a href=\"https:\/\/www.wehopower.com\/wp-content\/uploads\/2021\/11\/SP-100.pdf\">complete SP-100 specification and mechanical sheet<\/a> calls the optional CN3 interface Remote ON\/OFF. Neither title permits a reviewer to rename RC\u2212 and RC+ as sense contacts. This article gives no jumper, actuation-level or energized connection procedure.<\/p>\n<figure><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/03-product-detail-37.png?quality=85&#038;strip=all\" alt=\"Remote Sense vs Remote On\/Off: Do Not Treat SP-100-12 R.C. as Sense Terminals  title=\" width=\"1536\" height=\"1024\" remote sense vs><figcaption>Documentary source photograph, framed without enlargement or product repainting. The printed optional marking is not proof of an ordered interface.<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Keep_the_photographed_sample_and_the_interface_document_together\"><\/span>Keep the photographed sample and the interface document together<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The authentic sample carries SP-100-12, DC OUTPUT 12V 8.5A, and AC INPUT 100\u2013240VAC 50\/60Hz 1.7A. Its front strip has seven physical contacts: two +V, two \u2212V, protective earth, N and L, seen left to right. The R.C. +\/\u2212 (OPT.) print occupies a separate region beside the adjustment marking. Do not invent additional populated pins in that region.<\/p>\n<p>The formal CN3 table assigns RC\u2212 and RC+ under the optional on\/off heading. That assignment and the photographed print are useful evidence of the documented function, but they do not establish that a particular purchase includes the option. A family name, a catalogue image and an order-specific configuration are different records.<\/p>\n<table>\n<thead>\n<tr>\n<th>Review object<\/th>\n<th>Available evidence<\/th>\n<th>Unresolved question<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Front power contacts<\/td>\n<td>Actual seven-contact strip and formal power-pin table<\/td>\n<td>Approved equipment harness and operating conditions<\/td>\n<\/tr>\n<tr>\n<td>Optional CN3<\/td>\n<td>Remote ON\/OFF title; RC\u2212\/RC+ assignments<\/td>\n<td>Ordered option, supplied hardware and applicable interface instructions<\/td>\n<\/tr>\n<tr>\n<td>Requested remote sensing<\/td>\n<td>No sense assignment in the retained SP-100 sheet<\/td>\n<td>Supplier confirmation or another appropriately documented selection<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Write_the_requirement_as_a_function_not_an_abbreviation\"><\/span>Write the requirement as a function, not an abbreviation<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Separate the buyer&#8217;s need from the sample&#8217;s markings. If the requirement concerns voltage at a remote receiving point, state that requirement explicitly and ask for the relevant supported interface. If it concerns component output control, identify that duty separately. Do not combine them under an unqualified \u201cremote\u201d checkbox.<\/p>\n<p>A useful supplier question names the full model and order revision, describes the required function, and asks which document establishes it. Request confirmation of whether the option is included, the supplied connection hardware, its permitted electrical conditions, and the handling of unspecified states. Leave unresolved answers visible in the review record instead of deriving them from another SP model.<\/p>\n<ul>\n<li>Requirement: what function is needed, and at which equipment boundary?<\/li>\n<li>Authority: which exact ordered document supports the assignment?<\/li>\n<li>Configuration: is the option included in the delivered unit?<\/li>\n<li>Disposition: who resolves missing evidence before harness release?<\/li>\n<\/ul>\n<figure><img decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/01-application-a-40.png?quality=85&#038;strip=all\" alt=\"Remote Sense vs Remote On\/Off: Do Not Treat SP-100-12 R.C. as Sense Terminals  title=\" width=\"1536\" height=\"1024\" remote sense vs><figcaption>Illustrative dry signal-routing equipment layout. Empty contacts show an interface-review stage, not a tested receiver pairing.<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Use_the_layout_to_identify_the_review_location_not_to_prove_a_function\"><\/span>Use the layout to identify the review location, not to prove a function<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The new signal-routing bay illustration places the sample on a continuous electronics plate with separate receiver hardware. The second illustration uses an inkjet coding-station service drawer with a different mechanism and composition. That second view preserves the authentic product photograph rather than reconstructing its housing or labels. These views make the handover location concrete; neither supplies a missing CN3 specification, establishes a receiver load, or demonstrates a remote-sense or on\/off test.<\/p>\n<p>The retained body drawing is 179 mm front-to-rear depth, 99 mm terminal-front width and 45 mm height. Its 119 mm mounting envelope is separate from the body width. The complete underside and side mounting details belong in the mechanical review; this chassis is not a DIN-rail product. No universal clearance, screw torque, thermal orientation or equipment fit is inferred from the illustrations.<\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/02-application-b-38.png?quality=85&#038;strip=all\" alt=\"Remote Sense vs Remote On\/Off: Do Not Treat SP-100-12 R.C. as Sense Terminals  title=\" width=\"1536\" height=\"1024\" remote sense vs><figcaption>Different illustrative coding-station host compartment, with the original product pixels preserved. No remote leads, energized operation or commissioned installation are represented.<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Close_the_evidence_gap_before_the_harness_is_released\"><\/span>Close the evidence gap before the harness is released<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>If only R.C. (OPT.) is visible and ordered hardware is unconfirmed, record the optional interface as unconfirmed. If the supplied document identifies Remote ON\/OFF but the requirement asks for remote sensing, record a function mismatch pending clarification. Do not convert either result into a connection experiment.<\/p>\n<p>A supplier response can resolve the review only when it is tied to the purchased configuration and the required function. The electrical owner still checks the equipment interface against that response. A confirmed optional interface is not, by itself, machine safety authorization or permission for an equipment action.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/04-engineering-context-41.png?quality=85&#038;strip=all\" alt=\"Remote Sense vs Remote On\/Off: Do Not Treat SP-100-12 R.C. as Sense Terminals  title=\" width=\"1536\" height=\"1024\" remote sense vs><figcaption>Proposed documentary decision map, not a wiring schematic or an approval record.<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Kesimpulan<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>For a remote sense power supply request, confirm the function first and the ordered hardware second. The SP-100-12 R.C. marking and retained optional CN3 on\/off table do not establish a sense interface. Keep unresolved assignments on hold and <a href=\"https:\/\/www.wehopower.com\/ms\/contact\/\">ask WEHO for order-specific documentation<\/a> before releasing the relevant harness.<\/p>\n<\/article>","protected":false},"excerpt":{"rendered":"<p>Quick answer: A remote-sense requirement is not satisfied by an R.C. marking. The retained SP-100 sheet identifies optional CN3 as Remote ON\/OFF, with RC\u2212 and RC+ assignments. It does not assign sense terminals. Confirm the ordered interface before approving a harness; the sample&#8217;s optional print does not prove a fitted connector.<\/p>","protected":false},"author":2,"featured_media":18985,"parent":0,"menu_order":87,"comment_status":"closed","ping_status":"","template":"","format":"standard","meta":{"_acf_changed":false,"_joinchat":[],"footnotes":""},"news_category":[149,284],"class_list":["post-18989","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\/ms\/wp-json\/wp\/v2\/news\/18989","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wehopower.com\/ms\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/www.wehopower.com\/ms\/wp-json\/wp\/v2\/types\/news"}],"author":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/ms\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/ms\/wp-json\/wp\/v2\/comments?post=18989"}],"version-history":[{"count":1,"href":"https:\/\/www.wehopower.com\/ms\/wp-json\/wp\/v2\/news\/18989\/revisions"}],"predecessor-version":[{"id":19610,"href":"https:\/\/www.wehopower.com\/ms\/wp-json\/wp\/v2\/news\/18989\/revisions\/19610"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/ms\/wp-json\/wp\/v2\/media\/18985"}],"wp:attachment":[{"href":"https:\/\/www.wehopower.com\/ms\/wp-json\/wp\/v2\/media?parent=18989"}],"wp:term":[{"taxonomy":"news_category","embeddable":true,"href":"https:\/\/www.wehopower.com\/ms\/wp-json\/wp\/v2\/news_category?post=18989"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}