Instruction Manual

Connector Information

The I/O Connector Signal Descriptions and RTSI Connector Pinout

sections contain information about M Series connectors. Refer to

Appendix A, NI 6236 Device 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, 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:

Also refer to the Analog Input Ground-Reference Settings

section of Chapter 4, Analog Input.

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.