{"id":2484,"date":"2019-08-07T06:36:14","date_gmt":"2019-08-07T06:36:14","guid":{"rendered":"https:\/\/35.94.173.37\/blog\/?p=2484"},"modified":"2024-11-05T06:37:43","modified_gmt":"2024-11-05T06:37:43","slug":"national-instruments-scxipart-8","status":"publish","type":"post","link":"https:\/\/www.apexwaves.com\/blog\/national-instruments-scxipart-8\/","title":{"rendered":"National Instruments SCXI:Part 8"},"content":{"rendered":"

This is part 8 in our ongoing blog series about the\u00a0National Instruments SCXI<\/a><\/strong>\u00a0platform. Part 8 will describe the rack-mountable SCXI Terminal Blocks. If you missed the previous blog posts, you can view them on our blog!<\/p>\n

 <\/p>\n

The\u00a0BNC-2095<\/strong>\u00a0and\u00a0TC-2095<\/strong>\u00a0shielded, rack-mountable terminal accessories for SCXI have BNC and thermocouple connectors, respectively. The\u00a0BNC-2095<\/strong>\u00a0and\u00a0TC-2095<\/strong>\u00a0cable to the\u00a0SCXI-1100<\/strong>,\u00a0SCXI-1102<\/strong>, and\u00a0SCXI-1102B\/C<\/strong>,\u00a0SCX-1104\u00a0<\/strong>32-channel input modules. You cable the\u00a0BNC-2095<\/strong>\u00a0and\u00a0TC-2095<\/strong>\u00a0to the front connector of the SCXI module with the\u00a0SH96-96<\/strong>\u00a0shielded cable or\u00a0R96-96<\/strong>\u00a0ribbon cable.<\/p>\n

 <\/p>\n

\"\"<\/p>\n

 <\/p>\n

The\u00a0TBX-1303<\/a><\/strong>, created for thermocouples, is additionally effective for general-purpose applications. This terminal block has special features for thermocouples, such as isothermal construction with a plastic cover to reduce thermal gradients, open-thermocouple detection circuitry, and automatic ground referencing circuitry. When utilizing the\u00a0TBX-1303<\/strong>\u00a0with the\u00a0SCXI-1102<\/strong>\u00a0Series<\/strong>, this terminal block delivers a high-impedance path to ground, so that systems work dependably with floating or ground-referenced thermocouples. For applications with the\u00a0SCXI-1100<\/strong>, you can configure the channels to be ground-referenced or floating in blocks of eight channels. For general purpose applications, this terminal block is equipped with 108 terminals, including CH+, CH-, and shield for every input channel. The\u00a0TBX-1303<\/strong>\u00a0works with the\u00a0SCXI-1181<\/strong>\u00a0breadboard module as well.<\/p>\n

 <\/p>\n

\"\"<\/p>\n

 <\/p>\n

The\u00a0National Instruments TBX-1316<\/a><\/strong>\u00a0is a high voltage attenuator terminal block created to be used with the\u00a0SCXI-1125<\/strong>,\u00a0SCXI-1120\/D<\/strong>, and\u00a0SCXI-1126<\/strong>\u00a0analog input modules. The\u00a0NI TBX-1316<\/strong>\u00a0extends the input voltage range for AC\/DC signals to 1,000 V for Category I installations and 600 V for Category II installations. For voltage measurements, the\u00a0TBX-1316<\/strong>\u00a0is suggested for use with the\u00a0SCXI-1125<\/strong>\u00a0but can be used with the\u00a0SCXI-1120\/D\u00a0<\/strong>also. For frequency measurements, utilize the\u00a0TBX-1316<\/strong>\u00a0with the\u00a0SCXI-1126<\/strong>.<\/p>\n

 <\/p>\n

The\u00a0TBX-1325<\/strong>\u00a0has 30 screw terminals for signal connections to the\u00a0SCXI-1124<\/strong>\u00a0module. You cable the\u00a0TBX-1325<\/strong>\u00a0to the SCXI module with the\u00a0SH48-48-A<\/strong>\u00a0shielded cable. However, keep in mind that the\u00a0TBX-1325<\/strong>\u00a0and\u00a0SH48-48-A<\/strong>\u00a0limit the maximum working common-mode voltage between banks or between banks and earth ground to 250 Vrms maximum.<\/p>\n

 <\/p>\n

The\u00a0TBX-1326<\/strong>\u00a0is a high-voltage terminal block with 48 screw terminals for signal connections to the\u00a0SCXI-1162<\/strong>,\u00a0SCXI-1162HV<\/strong>,\u00a0SCXI-1163<\/strong>, and\u00a0SCXI-1163R<\/strong>\u00a0modules. You cable the\u00a0TBX-1326<\/strong>\u00a0to the SCXI module with the\u00a0SH48-48-B<\/strong>\u00a0shielded cable.<\/p>\n

 <\/p>\n

The\u00a0TBX-1328<\/strong>\u00a0can be used in conjunction with the\u00a0S<\/strong>CXI-1120<\/strong>,\u00a0SCXI-1120D<\/strong>,\u00a0SCXI-1121<\/strong>,\u00a0SCXI-1125<\/strong>, and\u00a0SCXI-1126\u00a0<\/strong>modules. The\u00a0TBX-1328<\/strong>\u00a0has 24 screw terminals, including three terminals (CH+, CH-, and chassis ground) for every input channel and sockets for the installation of resistors for 4-20 mA inputs. When used with thermocouples, the\u00a0TBX-1328<\/strong>\u00a0optimizes measurement preciseness with an isothermal construction and a plastic cover that decreases thermal gradients across the terminal block and the subsequent errors.<\/p>\n

 <\/p>\n

The\u00a0TBX-1329<\/a><\/strong>\u00a0delivers selectable AC coupling for the\u00a0SCXI-1120<\/strong>,\u00a0SCXI-1120D<\/strong>,\u00a0SCXI-1121<\/strong>,\u00a0SCXI-1125<\/strong>, and\u00a0SCXI-1126<\/strong>\u00a0modules. Every channel of the\u00a0TBX-1329<\/strong>\u00a0terminal block includes selectable AC coupling circuitry that can reject up to 250 VDC. The screw terminals on the\u00a0TBX-1329<\/strong>\u00a0are pluggable.<\/p>\n

 <\/p>\n

The\u00a0NI TBX-24F<\/strong>\u00a0general-purpose screw terminal block has feed-through connections for 24 signal lines. The\u00a0TBX-24F<\/strong>\u00a0can be linked to the SCXI module with discrete wires connected to a regular SCXI terminal block. For example, you can utilize two\u00a0TBX-24F<\/strong>\u00a0blocks to terminate the I\/O lines for one\u00a0SCXI-1160<\/strong>\u00a0relay module, which needs 48 signal connections (16 relays, 3 lines per relay). You separately wire the\u00a0TBX-24F<\/strong>\u00a0to a regular\u00a0SCXI-1324<\/strong>\u00a0terminal block, which attaches to the front of the\u00a0SCXI-1160<\/strong>\u00a0module.<\/p>\n

 <\/p>\n

Lastly, the\u00a0National Instruments BNC-2096<\/strong>\u00a0is a 19 in. rack-mountable BNC terminal block for\u00a0NI PXI-447x<\/strong>,\u00a0PXI-4461<\/strong>, and\u00a0SCXI-153x<\/strong>\u00a0modules. It provides 16 channels of Class I smart TEDS sensor inputs for IEPE sensors such as microphones and accelerometers. The\u00a0NI BNC-2096<\/strong>\u00a0requires digital control from a\u00a0NI 4021<\/strong>\u00a0switch controller or data acquisition device. Two or more\u00a0BNC-2096<\/strong>\u00a0blocks can be controlled by a single device, enabling multidrop configurations for high-channel-count systems.<\/p>\n","protected":false},"excerpt":{"rendered":"

This is part 8 in our ongoing blog series about the\u00a0National Instruments SCXI\u00a0platform. Part 8 will describe the rack-mountable SCXI Terminal Blocks. If you missed the previous blog posts, you can view them on our blog!   The\u00a0BNC-2095\u00a0and\u00a0TC-2095\u00a0shielded, rack-mountable terminal accessories for SCXI have BNC and thermocouple connectors, respectively. The\u00a0BNC-2095\u00a0and\u00a0TC-2095\u00a0cable to the\u00a0SCXI-1100,\u00a0SCXI-1102, and\u00a0SCXI-1102B\/C,\u00a0SCX-1104\u00a032-channel input modules. […]<\/p>\n","protected":false},"author":1,"featured_media":2485,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[8],"tags":[30,82,393,421,474],"class_list":["post-2484","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-national-instruments","tag-aerospace","tag-aviation","tag-national-instruments","tag-national-instruments-scxi","tag-ni-scxi"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.apexwaves.com\/blog\/wp-json\/wp\/v2\/posts\/2484","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=2484"}],"version-history":[{"count":1,"href":"https:\/\/www.apexwaves.com\/blog\/wp-json\/wp\/v2\/posts\/2484\/revisions"}],"predecessor-version":[{"id":2486,"href":"https:\/\/www.apexwaves.com\/blog\/wp-json\/wp\/v2\/posts\/2484\/revisions\/2486"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.apexwaves.com\/blog\/wp-json\/wp\/v2\/media\/2485"}],"wp:attachment":[{"href":"https:\/\/www.apexwaves.com\/blog\/wp-json\/wp\/v2\/media?parent=2484"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.apexwaves.com\/blog\/wp-json\/wp\/v2\/categories?post=2484"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.apexwaves.com\/blog\/wp-json\/wp\/v2\/tags?post=2484"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}