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National Instruments Corporation
9
NI High-Speed Digitizers Getting Started Guide
Note
For SMC-based devices, spread-spectrum clocking varies the clock signal to spread the timing
clock signal over a small frequency range. Disabling spread-spectrum clocking may affect the
accuracy of device specifications.
USB Devices
To install a USB device, connect the USB cable to the PC and the digitizer, as shown in Figure 6.
Figure 6.
USB Installation
USB Cable Strain Relief
The two strain relief options for your USB cable are as follows:
•
Groove Method
—Press the USB cable into one of the two grooves on the underside of the USB
device. Choose the USB cable groove that matches your USB cable size, as shown in Figure 7.
•
Zip Tie Method
—Thread a zip tie through the zip tie bar on the underside of the USB device and
tighten around the USB cable, as shown in Figure 7.
1
Laptop Computer
2
NI USB High-Speed Digitizer
3
USB Cable
2
1
3
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