The table below shows general values for resistors in either pull-up or pull-down configuration.
Note: Not all devices in a single family will have these values. Please consult your specific device's specifications document for the most accurate information.
| Device Family/Name | Pull-up/Pull-down | Resistance |
|---|---|---|
NI 63xx (Formerly X Series) | Pull-down | 50 kΩ |
NI 62xx (Formerly M Series) | Pull-down | 50 kΩ |
NI 60xxE (Formerly E Series) 1 | Pull-up | 50 kΩ |
NI 61xx (Formerly S Series) 2 | Pull-up | 10 kΩ - 100 kΩ |
NI USB-6001/2/3 | Pull-down | 47.5 kΩ |
NI USB-6008/9 | Pull-up | 4.7 kΩ |
NI PCIe-6509 | User-defined 3 | |
NI 4350/1 | Pull-up | 10-100 kΩ |
| Legacy Devices | ||
| Device Name | Pull-up/Pull-down | Resistance |
NI-6533/6534 | User-defined 3 | 100 kΩ |
PC-DIO-24/96 | User-defined 3 | 100 kΩ |
PCI-DIO-96 | Pull-up | 100 kΩ |
AT-DIO-32F | Pull-Up (IN1, IN2 only) | 4.7kΩ |
AT-MIO-16D/16DE-10 | Pull-up | 100 kΩ |
PC-LPM-16 | Pull-up | 10 kΩ |
DAQCard-700 | Pull-up | 10 kΩ |
1 Some E Series devices have a second chip (the 8255) that provides additional digital lines. On these devices, port 0 uses a 50 kΩ pull-up resistor while ports 2, 3, and 4 use a 100 kΩ pull-up resistor. | ||
3 The DIO-24/96 and the USB-6503/6509 cards allow jumper-selectable pull-up/pull-down configuration. The NI-6533/6534 family of devices similarly allows the user to configure pulled up or pulled down DIO via the DPULL pin. See your user manual for more information. | ||