Chapter 3 connector information, I/o connector signal descriptions, Table 3-1. i/o connector signals – National Instruments DAQ M Series User Manual
Page 23: I/o connector signal descriptions -1, Connector information
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3
Connector Information
The I/O Connector Signal Descriptions and
sections contain information about M Series connectors. Refer to
Appendix A,
, 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, AO GND, and D GND are
connected on the device.
Note: AI GND, AO GND, and D GND are isolated from earth
ground and chassis ground.
AI <0..3>±
AI GND
Input
Analog Input Channels 0 to 3±—For differential
measurements, AI 0+ and AI 0– are the positive and negative
inputs of differential analog input channel 0. Similarly, the
following signal pairs also form differential input channels:
Analog Input Ground-Reference Settings
section of Chapter 4,
Note: AI <0..3>± are isolated from earth ground and chassis
ground.
AO <0..3>
AO GND
Output
Analog Output Channels 0 to 3—These terminals supply the
voltage output of AO channels 0 to 3.
Note: AO <0..3> are isolated from earth ground and chassis
ground.