Installing the software, Configuring the pci-quad04, Channel input mode – Measurement Computing PCI-QUAD04 User Manual

Page 9: Termination resistors

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PCI-QUAD04 User's Guide

Installing the PCI-QUAD04

9

Installing the software

Refer to the Quick Start Guide for instructions on installing the software on the Measurement Computing Data
Acquisition Software CD
. This booklet is available in PDF at

www.mccdaq.com/PDFmanuals/DAQ-Software-

Quick-Start.pdf

.

Configuring the PCI-QUAD04

Before installing the board, configure the channel input mode for either single-ended or differential. You set the
channel configuration with a set of jumper blocks on the board. Each jumper is labeled for its functionality. By
default, the board is shipped with the channels configured for single-ended operation, with no termination
resistors installed.

Channel input mode

To configure for single-ended operation, place a jumper between pin 2 and pin 3 (labeled

SE

). To configure for

differential operation, place a jumper between pin 1 (labeled

DIFF

) and pin 2. A single-ended configuration is

shown in Figure 3.

Figure 3. Channel input mode configured for SE operation

Input mode jumper settings are listed in the table below.

Channel input mode jumper settings

Input channel

Input

1

2

3

4

Phase A

P3

P8

P14

P11

Phase B

P4

P7

P13

P10

Index

P5

P6

P12

P9

Termination resistors

Although termination resistors typically are not required, SMT pads on the PCI-QUAD04 are open and labeled
to allow you to install terminating resistors from the various inputs to ground.

Termination resistor settings

Channel

Input

1

2

3

4

Phase A+

R9

R22

R38

R30

Phase A-

R10

R23

R39

R31

Phase B+

R11

R20

R36

R28

Phase B-

R12

R21

R37

R29

Index+

R14

R19

R35

R27

Index-

R13

R18

R34

R26

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