{"id":14080,"date":"2010-10-28T00:00:00","date_gmt":"2010-10-28T00:00:00","guid":{"rendered":"https:\/\/www.dmcinfo.com\/our-work\/custom-relay-multiplexer-system-for-high-channel-count-data-acquisition\/"},"modified":"2025-05-29T22:31:52","modified_gmt":"2025-05-29T22:31:52","slug":"custom-relay-multiplexer-system-for-high-channel-count-data-acquisition","status":"publish","type":"our_work","link":"https:\/\/www.dmcinfo.com\/our-work\/custom-relay-multiplexer-system-for-high-channel-count-data-acquisition\/","title":{"rendered":"Custom Relay Multiplexer System for High Channel Count Data Acquisition"},"content":{"rendered":"<p>DMC started this project by exploring existing commercial solutions for DMM multiplexing and found that these systems\u00a0were either outside of the Client budget, and\/or did not provide the 1kV isolation required for the application.\u00a0As a result,\u00a0DMC leveraged its printed circuit board (PCB) design and development expertise to manufacture several custom printed circuit boards to provide the required performance within the Client\u2019s budget.\u00a0These PCBs were assembled in a standard rack mount card cage to provide a single, compact and integrated multiplexing solution for the Client\u2019s data acquisition system.<\/p>\r\n\r\n<p>Overall this custom fixture approach saved our Client time, complexity, and costs over an off the shelf solutions.<\/p>\r\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\"><figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"674\" height=\"674\" data-id=\"14077\" src=\"https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2025\/05\/27170218\/PCB-Electrical-Schematic.jpg\" alt=\"Multiplexer Card PCB Electrical Schematic\" class=\"wp-image-14077\" srcset=\"https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2025\/05\/27170218\/PCB-Electrical-Schematic.jpg 674w, https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2025\/05\/27170218\/PCB-Electrical-Schematic-300x300.jpg 300w, https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2025\/05\/27170218\/PCB-Electrical-Schematic-150x150.jpg 150w\" sizes=\"(max-width: 674px) 100vw, 674px\" \/><figcaption class=\"wp-element-caption\">PCB Electrical Schematic<\/figcaption><\/figure><figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"674\" height=\"533\" data-id=\"14078\" src=\"https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2025\/05\/27170217\/Multiplexer-For-BMS-Testing.jpg\" alt=\"Multiplexer For BMS Testing\" class=\"wp-image-14078\" srcset=\"https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2025\/05\/27170217\/Multiplexer-For-BMS-Testing.jpg 674w, https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2025\/05\/27170217\/Multiplexer-For-BMS-Testing-300x237.jpg 300w\" sizes=\"(max-width: 674px) 100vw, 674px\" \/><figcaption class=\"wp-element-caption\">Multiplexer For BMS Testing<\/figcaption><\/figure><figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"706\" height=\"596\" data-id=\"14079\" src=\"https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2025\/05\/27170217\/Multiplexer-System-Cards.jpg\" alt=\"Custom Multiplexer System Cards\" class=\"wp-image-14079\" srcset=\"https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2025\/05\/27170217\/Multiplexer-System-Cards.jpg 706w, https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2025\/05\/27170217\/Multiplexer-System-Cards-300x253.jpg 300w\" sizes=\"(max-width: 706px) 100vw, 706px\" \/><figcaption class=\"wp-element-caption\">Multiplexer System Cards<\/figcaption><\/figure><\/figure>","protected":false},"excerpt":{"rendered":"<p>DMC started this project by exploring existing commercial solutions for DMM multiplexing and found that these systems\u00a0were either outside of the Client budget, and\/or did not provide the 1kV isolation required for the application.\u00a0As a result,\u00a0DMC leveraged its printed circuit board (PCB) design and development expertise to manufacture several custom printed circuit boards to provide [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":14076,"template":"","meta":{"customer":"Compact Power","summary":"<p>DMC designed and developed a relay-based multiplexing system&nbsp;for a Client&#39;s&nbsp;<a href=\"https:\/\/www.dmcinfo.com\/latest-thinking\/case-studies\/view\/id\/236\/battery-management-system-bms-test-stand-2nd-generation\" target=\"_blank\">large-channel-count data acquisition system<\/a>. For this project DMC was required to produce a reliable, yet low-cost, system to make current and voltage measurements&nbsp;using a high accuracy Digital Multi-Meter (DMM) on over 200 signal lines with 1kV isolation.<\/p>\r\n","description":"","customer_benefits":"<ul>\r\n <li><strong>Lower Hardware Costs --<\/strong>&nbsp;versus off-the-shelf solutions, especially&nbsp;for repeat systems.<\/li>\r\n <li><strong>Compact Size<\/strong> -- afforded by integrating signal routing and relays&nbsp;on a single PCB.<\/li>\r\n <li><strong>Improved Performance<\/strong>&nbsp; -- by providing the required&nbsp;1kV isolation&nbsp;into the&nbsp;design.<\/li>\r\n <li><strong>Shorter Lead Time<\/strong> -- compared to&nbsp;commercial solutions with 4-6 week delivery times.&nbsp;<\/li>\r\n<\/ul>\r\n","components_used":"<ul>\r\n <li>PC&nbsp;Board Layout using <a href=\"http:\/\/www.altium.com\/products\/altium-designer\/en\/altium-designer_home.cfm\" target=\"_blank\">Altium Designer<\/a><\/li>\r\n <li>Relay System Control using <a href=\"http:\/\/www.ni.com\/dataacquisition\/\" target=\"_blank\">National Instruments DAQmx<\/a><\/li>\r\n <li>Rack mount card cage by <a href=\"http:\/\/www.vectorelect.com\/\" target=\"_blank\">Vector Electronics<\/a><\/li>\r\n<\/ul>\r\n","project":"BMS Test Stand - Ford","author":"Brent H","notes":""},"work_category":[678,693,697,704,692,698,684,706],"class_list":["post-14080","our_work","type-our_work","status-publish","has-post-thumbnail","hentry","work_category-automotive","work_category-battery-pack-test-systems","work_category-embedded-development-programming","work_category-energy-and-utilities","work_category-green-technology","work_category-product-development","work_category-test-measurement-automation","work_category-test-stand"],"yoast_head":"<title>Custom Relay Multiplexer System for High Channel Count Data Acquisition | DMC, Inc.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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