user manual

Mounting the NI USB-9421 to a Panel

Threaded inserts are located in the NI USB-9421 for mounting it to a panel.

Refer to Figure 6 for dimensions.

Figure 6. Module Dimensions in Millimeters (Inches)

Connecting the NI USB-9421 to a Computer

Plug one end of the USB cable into the NI USB-9421 and the other end into

an available USB port on the computer. Refer to the NI-DAQmx for USB

Devices Getting Started Guide that shipped with your device, and is also

accessible from Start»All Programs»National Instruments»NI-DAQ,

for more information.

LED Indicator

The NI USB-9421 device has a green LED next to the USB connector. The

LED indicator indicates device status, as listed in Table 1. When the device

is connected to a USB port, the LED blinks steadily to indicate that the

device is initialized and is receiving power from the connection.

If the LED is not blinking, it may mean that the device is not initialized or

the computer is in standby mode. In order for the device to be recognized,

the device must be connected to a computer that has NI-DAQmx installed

on it. If your device is not blinking, make sure your computer has the latest

version of NI-DAQmx installed on it, and the computer is not in standby

mode.

Threaded Insert

M3 x 0.5

8.5 mm (0.34 in.) Max Depth

72.2 mm

(2.84 in.)

85.7 mm

(3.37 in.)

76.1 mm

(3.00 in.)