DNx-AI-208 Analog Input Layer
Chapter 1
5
Introduction
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Vers:
4.6
Date: November 2013
File:
AI208 Chap1.fm
© Copyright 2009
United Electronic Industries, Inc.
The AI-208 layer can measure voltage on every channel between the S- and S+
terminals (differential mode, channels 0-7), between the Px+ lines (channels
0x10-0x17) and signal ground, and between the PSx+ and signal ground (chan-
nels (0x20-0x27).
The AI-208 layer can also be used to measure signals from differential signal
sources other than bridges, using the S+ and S- terminals. In such application
situations, sensor excitation is usually not required. Precise measurement is
achieved through the use of more than 8 channels internally in the AI-208 board.
NOTE:
For descriptions of connections used with quarter-, half-, and full-bridge
circuits, refer to
, and
in the
Appendix.
1.4.1
Connectors
The pinout of the 37-pin connector for the DNA/DNR-AI-208 Layer board is
shown in
. A physical layout of the board is shown in
.
Figure 1-3. DB-37 I/O Connector Pinout
When using a long cable to a sensor, be sure to use the same gauge
wire for the excitation source, GND, and GND Sense lines.
External Trigger
(Input only)
