National Instruments NI USB-621x User Manual page 65

Chapter 6 Connecting AI Signals on the USB-6215/6218 Devices
NI USB-621x User Manual
Table 6-1. I/O Connector Signals (Continued)
Channel
3
4
5
6
7
16*
17*
18*
19*
20*
21*
22*
23*
* USB-6218 devices only.
Refer to Figure 6-1 for an illustration of a differential connection
configuration.
V
1
V
V
cm
2
Figure 6-1. Connecting a Device to a USB-6215/6218 Using Differential Connections
Signal +
A I3
A I4
A I5
A I6
A I7
AI 16
AI 17
AI 18
AI 19
AI 20
AI 21
AI 22
AI 23
AI0+
1
AI0– (AI8)
MUX
AI1+
1
AI1– (AI9)
AI GND
1 This signal name indicates the differential pair. Refer to
Table1 for a list of differential signal pairs.
6-2
Signal –
AI 11
AI 12
AI 13
AI 14
AI 15
AI 24
AI 25
AI 26
AI 27
AI 28
AI 29
AI 30
AI 31
PGIA ADC
USB-6215/6218
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