Chapter 3 I/O Information
© National Instruments 3-13 NI PXI-8109 User Manual
Table 3-10. ExpressCard Connector Signals
Pin Signal Name Signal Description
1 GND Ground
2 USBD– USB Data –
3 USBD+ USB Data +
4 CPUSB# USB Presence
5 RESERVED Reserved by spec for future use
6 RESERVED Reserved by spec for future use
7 SMBCLK SMBus Clock
8 SMBDATA SMBus Data
9 +1.5V Power
10 +1.5V Power
11 WAK E # PE Wake
12 +3.3VAUX Power
13 PERST# PE Reset
14 +3.3V Power
15 +3.3V Power
16 CLKREQ# Clock Request
17 CPPE# PE Presence
18 REFCLK– Reference Clock –
19 REFCLK+ Reference Clock +
20 GND Ground
21 PERn PE Data Receive –
22 PERp PE Data Receive +
23 GND Ground
24 PETn PE Data Transmit –
25 PETp PE Data Transmit +
26 GND Ground
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