Power up first time

[ummar]

I have ni-usb-6255. I want to power it up for first time. There is no power requirements mentioned in specs. So I am confused ? should I use 220v or 110v ac, how can I know?

If the device required 120v ac , can I use 110v ac instead?

[crossrulz]

Learn to read a data sheet...It is quite clear that the USB-6255 requires 10-30VDC to it.  It if came with an AC power adapter, read the label on it.