{"id":2503,"date":"2019-07-26T06:51:39","date_gmt":"2019-07-26T06:51:39","guid":{"rendered":"https:\/\/35.94.173.37\/blog\/?p=2503"},"modified":"2024-11-05T06:53:55","modified_gmt":"2024-11-05T06:53:55","slug":"national-instruments-scxi-part-3","status":"publish","type":"post","link":"https:\/\/www.apexwaves.com\/blog\/national-instruments-scxi-part-3\/","title":{"rendered":"National Instruments SCXI: Part 3"},"content":{"rendered":"

This is the third part in our series about the\u00a0National Instruments SCXI Series<\/strong><\/a>. There are several types of switches in the SCXI series. The first type is the Multiplexer\/Matrix Switch Module. One of these Multiplexer\/Matrix Modules is the\u00a0SCXI-1127<\/strong><\/a>\u00a0(electromechanical relay). Another example is the\u00a0SCXI-1128<\/strong>\u00a0(solid-state relay). Both are devices that function as multiplexer or matrix modules. As a multiplexer, they can operate in different multiplexing modes, such as 1-wire for resistive measurements including RTDs and low-resistance measurements. With the\u00a0SCXI-1332<\/strong>\u00a0front-mounting terminal block, the\u00a0SCXI-1127<\/strong>\u00a0and\u00a0SCXI-1128<\/strong>\u00a0become a 4\u00d78 2-wire matrix. Expanding the multiplexer or matrix channel count is as easy as adding additional modules.<\/p>\n

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The\u00a0NI SCXI-1175<\/strong>\u00a0is a high-density multiplexer switch module. With 196 1-wire channels or 98 2-wire channels, the\u00a0NI SCXI-1175<\/strong>\u00a0is capable of routing hundreds of signals to measurement devices or from source units. Each channel uses robust electromechanical relays and can switch up to 100 VDC\/100 VAC or 1 A. With a scanning speed of up to 140 channels\/s, the\u00a0SCXI-1175<\/strong>\u00a0acts as an excellent front-end for high-channel-count automated test applications.<\/p>\n

The\u00a0National Instruments\u00a0<\/strong>SCXI-1129<\/strong><\/a>\u00a0is a high-density matrix built to serve high-channel-count switching applications. The module is a 2-wire matrix, configurable with front mounting terminal blocks to achieve many different matrix configurations, including 4\u00d764, 8\u00d732, 16\u00d716, dual 4\u00d732, dual 8\u00d716, and quad 4\u00d716. For greater densities, matrix expansion is easily achievable with additional modules. Analog signals are passed between modules via a high-voltage backplane, a matrix expansion cable, and through analog plugs connecting terminal blocks, which virtually eliminate hours of complicated wiring. The\u00a0NI SCXI-1129<\/strong>\u00a0is designed to work well with both low and high-voltage levels. For low-voltage measurements, the\u00a0SCXI-1129<\/strong>\u00a0uses relays with low thermal offset to ensure accurate measurements. These same relays can handle up to 150 Vrms and 150 VDC.<\/p>\n

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The\u00a0National Instruments SCXI-1130<\/strong>\u00a0is a high-density, multiconfiguration multiplexer\/matrix switch module. This module is also a great choice for large or complex-channel-count systems. Multiplexer configurations include 256\u00d71 (1-wire), 128\u00d71 (2-wire), 64\u00d71 (4-wire), or 16 banks of 16\u00d71 (1-wire). Matrix configurations include 4\u00d764 (1-wire), 8\u00d732 (1-wire), or 4\u00d732 (2-wire). These configurations are made available through the selection of an appropriate terminal block. Since this module has the speed of reed relays, the\u00a0SCXI-1130<\/strong>\u00a0is an optimal front-end for high-speed measurement devices, such as the\u00a0NI\u00a0<\/strong>PXI-4070<\/strong><\/a>\u00a06\u00bd-digit FlexDMM. However, for parallel operations requiring lower channel count, consider the\u00a0NI PXI-2576<\/strong>.<\/p>\n

The\u00a0National Instruments SCXI-1166<\/strong>\u00a0is a general-purpose switch module with 32 channels. It has independent SPDT (Form C) nonlatching relays with low on-resistance and low thermal offset. The\u00a0NI SCXI-1166<\/strong>\u00a0can switch up to 2 A at 30 VAC\/30 VDC and can carry 5 A per channel. Hence, it is ideal for switching, routing, and controlling high-current signals. Each relay channel has a normally closed (NC), normally open (NO), and common (COM) terminal.<\/p>\n

The\u00a0National Instruments SCXI-1194<\/strong>\u00a0is a quad 4\u00d71 high-frequency unterminated multiplexing switch capable of switching signals from DC to 2.5 GHz. The characteristic impedance of the channels on this module is 50 \u03a9. The\u00a0NI SCXI-1194<\/strong>\u00a0has a maximum voltage rating of 30 Vrms with a maximum switching current of 500 mA. This module is perfect for applications that involve the routing of high-frequency signals inside automated test equipment systems since it has the capability to switch signals with low insertion loss. Furthermore, the astounding voltage standing-wave ratio (VSWR) and isolation parameters make this module the ideal solution in any system with high-frequency applications. The\u00a0SCXI-1194<\/strong>\u00a0additionally features relay count tracking to aid in decreasing unforeseen system downtime.<\/p>\n

The\u00a0National Instruments SCXI-1195<\/strong>\u00a0is similar to the\u00a0SCXI-1194<\/strong>\u00a0because it is also a quad 4\u00d71 high-frequency unterminated multiplexing switch with similar specifications and features. Although, the\u00a0NI SCXI-1195<\/strong>\u00a0can switch signals from DC to 5 GHz. The characteristic impedance of the channels on this module is 50 \u03a9. The\u00a0NI SCXI-1195<\/strong>\u00a0has a maximum voltage rating of 30 Vrms with a maximum switching current of 500 mA.<\/p>\n

The\u00a0National Instruments SCXI-1190<\/strong>\u00a0is a general-purpose, quad 4\u00d71 RF multiplexing switch for use in automated measurements. The\u00a0NI SCXI-1190<\/strong>\u00a0uses single-pole double-throw high-bandwidth relays capable of switching signals from DC to 1.3 GHz. The characteristic impedance of the channels is 50 \u03a9. The maximum rated voltage of the switch is 30 VDC and the maximum rated current is 330 mA.<\/p>\n

The\u00a0National Instruments\u00a0<\/strong>SCXI-1193<\/strong><\/a>\u00a0is a high-density 50 \u03a9 RF relay module, which can be programmatically arranged in several ways: as an unterminated multiplexer, externally terminated multiplexer, or dimensionally versatile sparse matrix. Each configuration handles signal frequencies ranging from DC to more than 500 MHz. This one-slot switch module utilizes high-density push-on MCX connectors for manageable cabling. The\u00a0NI SCXI-1193<\/strong>\u00a0module is created to be used with high-frequency instruments such as the\u00a0NI PXI-5404<\/strong>\u00a0frequency generator and the\u00a0NI PXI-5112<\/strong>\u00a0high-speed digitizer.<\/p>\n

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Stay up to date on our blog posts by checking daily for new posts in our\u00a0National Instruments SCXI<\/strong>\u00a0series!<\/p>\n","protected":false},"excerpt":{"rendered":"

This is the third part in our series about the\u00a0National Instruments SCXI Series. There are several types of switches in the SCXI series. The first type is the Multiplexer\/Matrix Switch Module. One of these Multiplexer\/Matrix Modules is the\u00a0SCXI-1127\u00a0(electromechanical relay). Another example is the\u00a0SCXI-1128\u00a0(solid-state relay). Both are devices that function as multiplexer or matrix modules. As […]<\/p>\n","protected":false},"author":1,"featured_media":2504,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[8],"tags":[30,31,393,423,736],"class_list":["post-2503","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-national-instruments","tag-aerospace","tag-aerospace-and-defense","tag-national-instruments","tag-national-instruments-scxi-end-of-life","tag-scxi-obsolete"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.apexwaves.com\/blog\/wp-json\/wp\/v2\/posts\/2503","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.apexwaves.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.apexwaves.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.apexwaves.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.apexwaves.com\/blog\/wp-json\/wp\/v2\/comments?post=2503"}],"version-history":[{"count":1,"href":"https:\/\/www.apexwaves.com\/blog\/wp-json\/wp\/v2\/posts\/2503\/revisions"}],"predecessor-version":[{"id":2505,"href":"https:\/\/www.apexwaves.com\/blog\/wp-json\/wp\/v2\/posts\/2503\/revisions\/2505"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.apexwaves.com\/blog\/wp-json\/wp\/v2\/media\/2504"}],"wp:attachment":[{"href":"https:\/\/www.apexwaves.com\/blog\/wp-json\/wp\/v2\/media?parent=2503"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.apexwaves.com\/blog\/wp-json\/wp\/v2\/categories?post=2503"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.apexwaves.com\/blog\/wp-json\/wp\/v2\/tags?post=2503"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}