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

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