National Instruments NI 6232 - Manual (Page 25)

© National Instruments Corporation 3-1 NI 6232/6233 User Manual
3
Connector Information
The I/O Connector Signal Descriptions and RTSI Connector Pinout
sections contain information on M Series connectors. Refer to
Appendix A,
Device-Specific Information , for device I/O connector
pinouts.
I/O Connector Signal Descriptions
Table 3-1 describes the signals found on the I/O connectors. Not all signals
are available on all devices.
Table 3-1. I/O Connector Signals
Signal Name Reference Direction Description
AI GND — — Analog Input Ground—These terminals are the input bias
current return point. AI GND and AO GND are connected on
the device.
Note: AI GND and AO GND are isolated from earth ground,
chassis ground, P0.GND, and P1.GND.
AI <0..15> AI GND Input Analog Input Channels 0 to 15—For single-ended
measurements, each signal is an analog input voltage channel.
In RSE mode, AI GND is the reference for these signals.
For differential measurements, AI 0 and AI 8 are the positive
and negative inputs of differential analog input channel 0.
Similarly, the following signal pairs also form differential
input channels:
<AI 1, AI 9>, <AI 2, AI 10>, <AI 3, AI 11>, <AI 4, AI 12>,
<AI 5, AI 13>, <AI 6, AI 14>, <AI 7, AI 15>
Also refer to the Analog Input Ground-Reference Settings
section of Chapter 4, Analog Input .
Note: AI <0..15> are isolated from earth ground and chassis
ground.
AO <0..1> AO GND Output Analog Output Channels 0 to 1—These terminals supply the
voltage output of AO channels 0 to 1.
Note: AO <0..1> are isolated from earth ground and chassis
ground.