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Cabling – Measurement Computing AI-EXP48 User Manual

Page 13

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AI-EXP48 User's Guide

Installing the AI-EXP48

13

Cabling

If the parent device has a 25-pin expansion connector, you can use the CA-96A cable to connect with the AI-
EXP48.

Figure 4. CA-96A cable

Information on signal connections

General information regarding signal connection and configuration is available in the Guide to Signal
Connections
(available at

www.mccdaq.com/signals/signals.pdf

).

Associating CJC channels with thermocouple channels

TC channels must immediately follow their associated CJC channels in the channel array. For accurate
thermocouple measurements, associate CJC channels with the TC channels as listed below.

CJC channels

TC channels

CJC6

TC8 through TC11

CJC7

TC12 through TC15

CJC8

TC16 through TC19

CJC9

TC20 through TC23

CJC10

TC24 through TC27

CJC11

TC28 through TC31

When measuring thermocouples, the parent device must be configured for differential inputs.