Chapter 3
I/O Information
©
National Instruments Corporation
3-9
Universal Serial Bus
Figure 3-6 shows the location and pinouts for the Universal Serial Bus
(USB) connectors on the NI PXI-8108. Table 3-7 lists and describes the
USB connector signals.
Note
Install a noise-suppression ferrite (included in your shipping kit) onto the external
USB cable when using a USB mouse or keyboard to ensure that your device meets all EMC
standards applicable to your country. For more information on installing the ferrite, refer
to KnowledgeBase 4NEDT4P6 at
ni.com
.
Figure 3-6.
USB Connector Location and Pinout
Table 3-7.
USB Connector Signals
Pin
Signal Name
Signal Description
1
VCC
Cable Power (+5 V)
2
D–
USB Data –
3
D+
USB Data +
4
GND
Ground
USB
4
1
NI PXI-8108
Embedded Controller