Isothermal Compact FieldPoint Connector Block—The cFP-CB-3 connector block is designed for use with NI cFP-TC-120 and cFP-TC-125 thermocouple input modules. The cFP-CB-3 uses isothermal construction to minimize thermal gradients on the I/O terminals. Although the cFP-CB-1, cFP-CB-2, cFP-CB-3, and cFP-CB-4 all feature a built-in thermistor for cold-junction compensation, NI strongly recommends using the cFP-CB-3 when measuring thermocouples for increased accuracy. The cFP-CB-3 also features both a built-in strain relief bar and a separate wire tie connector, making it easy to create secure wiring setups for high shock and vibration applications.