+5 V Power Source

The NI USB-6501 supplies a nominal 5 V from two pins, one on each screw terminal block. The voltage source is provided by the USB host. The voltage is nominally 5 V but varies from system to system. Refer to the NI USB-6501 Device Specifications for more information about USB bus power specifications. This source can be used to power external components.

Note Output is disabled when the device is in USB suspend.
Caution When using the 5 V source, understand the current requirements of the load connected. Do not exceed the specified limits of the +5 V output current specification.