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777687-31 Datasheet(PDF) 1 Page - National Instruments Corporation |
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777687-31 Datasheet(HTML) 1 Page - National Instruments Corporation |
1 / 9 page SCXI Terminal Blocks Overview National Instruments SCXI terminal blocks provide a convenient method for connecting and disconnecting signals to your system. The NI SCXI-13xx front-mount terminal blocks feature direct connections to transducers at the screw terminals located within a fully shielded enclosure or at front-mounted BNC connectors. Strain-relief clamps hold the signal wires safely in place. You can also choose either the TC-2095 or BNC-2095 rack-mount terminal blocks for minithermocouple connectors or BNC connectors. These terminal blocks are ideal solutions for high-channel-count temperature or voltage applications. TBX DIN-rail mount terminal blocks are an alternative to the SCXI-13xx terminal blocks which attach directly to the front of an SCXI module. The TBX system includes shielded cables that connect the front I/O connector of an SCXI module to a TBX terminal block. Some terminal blocks are designed for specific input types, such as thermocouples, strain gages, and high-voltage inputs. See tables 2, 3, and 4 to determine which SCXI terminal blocks are compatible with your SCXI module. • Terminal blocks for quick, easy connections • Strain-relief clamps for reliable wiring • Connectivity options including BNC and thermocouple plugs • Shielded front-mount terminal blocks • Rack and DIN-rail mount options available • Terminal block options for specific measurement types • Onboard temperature sensor for cold-junction compensation • Isothermal construction for high-accuracy thermocouple measurements • High-voltage attenuation • AC/DC coupling • Bridge offset nulling, shunt calibration • Current inputs SCXI Terminal Blocks Terminal Block Compatible SCXI Modules Cabling CJC Special Features TBX-1303 SCXI-1100, SCXI-1102, SCXI-1102B/C, SCXI-1181 SH96-96 or R96-96 Open TC detection isothermal construction, selectable ground referencing TBX-1316 SCXI-1120/D, SCXI-1125, SCXI-1126 SH32-32-A – 200:1 attenuation (up to 1,000 VDC) TBX-1325 SCXI-1124 SH48-48-A – High-voltage 250 VDC TBX-1326 SCXI-1162, SCXI-1162HV, SCXI-1163, SCXI-1163R SH48-48-B – High-voltage 250 VDC TBX-1328 SCXI-1120, SCXI-1120D, SCXI-1121, SCXI-1125, SCXI-1126 SH32-32-A Sockets for current input resistors, isothermal construction, high-voltage 250 VDC TBX-1329 SCXI-1120, SCXI-1120D, SCXI-1121, SCXI-1125, SCXI-1126 SH32-32-A – Selectable AC coupling (rejects up to 250 VDC) TBX-96 SCXI-1100, SCXI-1102, SCXI-1102B/C SH96-96 or R96-96 – – SCXI-1104, SCXI-1181, SCXI-1104C TBX-24F1 All modules User-supplied wiring – – CB-50 SCXI-1180 NB1 – – 1 The TBX-24F is a general-purpose feedthrough terminal block that you can use with any SCXI module or front mounting terminal blocks. Table 1. TBX Terminal Block Selection Guide Figure 1. Terminal Block Configuration |
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