The National Instruments SCXI-1303 is a 32-channel isothermal terminal block designed for high-accuracy thermocouple measurements within an SCXI data acquisition system. Its isothermal construction minimizes temperature gradients across the screw terminals, ensuring a stable and uniform temperature environment for cold-junction connections. This design, combined with an integrated high-precision thermistor for cold-junction compensation (CJC), significantly improves the accuracy of temperature readings. The SCXI-1303 provides a reliable and convenient solution for connecting thermocouple signals directly to SCXI signal conditioning modules like the SCXI-1102, making it an essential component for precision thermal applications.