CyberResearch UMDAS 0802DA User Manual

Data Acquisition

UMDAS 0802DA

USB Data Acquisition Module - 8
Channels of 48kHz 13-bit A/D, 16
DIO, with 2 channels of 12-bit D

USER’S MANUAL

VER. 1.1 • January 2006

No part of this manual may be reproduced without permission

CyberResearch®,Inc.

www.cyberresearch.com

25 Business Park Dr., Branford, CT 06405 USA

®

/A

203-483-8815 (9am to 5pm EST) FAX: [phone]

CyberResearch® Data Acquisition UMDAS 0802DA

©Copyright 2006

All Rights Reserved.

January, 1 2006

The information in this document is subject to change without prior notice
in order to improve reliability, design, and function and does not represent
a commitment on the part of CyberResearch, Inc.

In no event will CyberResearch, Inc. be liable for direct, indirect, special,
incidental, or consequential damages arising out of the use of or inability
to use the product or documentation, even if advised of the possibility of
such damages.

This document contains proprietary information protected by copyright.
All rights are reserved. No part of this manual may be reproduced by any
mechanical, electronic, or other means in any form without prior written
permission of CyberResearch, Inc.

Trademarks

“CyberResearch,” and “UMDAS 0802DA,” are trademarks of
CyberResearch, Inc. Other product names mentioned herein are used for
identification purposes only and may be trademarks and/or registered
trademarks of their respective companies.

• NOTICE •

CyberResearch, Inc. does not authorize any CyberResearch product for
use in life support systems, medical equipment, and/or medical devices
without the written approval of the President of CyberResearch, Inc. Life
support devices and systems are devices or systems which are intended
for surgical implantation into the body, or to support or sustain life and
whose failure to perform can be reasonably expected to result in injury.
Other medical equipment includes devices used for monitoring, data
acquisition, modification, or notification purposes in relation to life
support, life sustaining, or vital statistic recording. CyberResearch
products are not designed with the components required, are not subject
to the testing required, and are not submitted to the certification required
to ensure a level of reliability appropriate for the treatment and diagnosis of
humans.

CyberResearch, Inc. iii

25 Business Park Drive P: [phone]; F: [phone]
Branford, CT USA www.cyberresearch.com

UMDAS 0802DA CyberResearch® Data Acquisition

Intentionally Blank

iv ©Copyright 2006 CyberResearch, Inc.

Table of Contents

Preface

About this User's Guide ......................................................................................................................vi

What you will learn from this user's guide ........................................................................................................vi

Conventions in this user's guide ........................................................................................................................vi

Chapter 1

Introducing the UMDAS 0802DA ..................................................................................................... 1-1

UMDAS 0802DA block diagram................................................................................................................... 1-2

Software features............................................................................................................................................ 1-2

Connecting a UMDAS 0802DA to your computer is easy.............................................................................. 1-3

Chapter 2

Installing the UMDAS 0802DA.............................................................................................................. 2-1

What comes with your UMDAS 0802DA shipment? .................................................................................... 2-1

Hardware ....................................................................................................................................................................... 2-1

Additional documentation.............................................................................................................................................. 2-1

Unpacking the UMDAS 0802DA .................................................................................................................. 2-2

Installing the software .................................................................................................................................... 2-2

Installing the hardware ................................................................................................................................... 2-2

Calibrating the UMDAS 0802DA................................................................................................................... 2-3

Chapter 3

Functional Details ............................................................................................................................. 3-1

Theory of operation - analog input acquisition modes ................................................................................... 3-1

Software paced mode..................................................................................................................................................... 3-1

Continuous scan mode ................................................................................................................................................... 3-1

External components ...................................................................................................................................... 3-1

USB connector............................................................................................................................................................... 3-2

LED ............................................................................................................................................................................... 3-2

Screw terminal wiring.................................................................................................................................................... 3-2

Main connector and pin out ........................................................................................................................................... 3-3

Analog input terminals (CH0 IN - CH7 IN)................................................................................................................... 3-3

Analog output terminals (D/A OUT 0 and D/A OUT 1)................................................................................................ 3-6

Digital I/O terminals (Port A0 to A7, and Port B0 to B7).............................................................................................. 3-6

Power terminals ............................................................................................................................................................. 3-7

External trigger terminal................................................................................................................................................ 3-7

Counter terminal ............................................................................................................................................................ 3-7

+2.5VREF terminal........................................................................................................................................................ 3-8

SYNC terminal ..............................................................................................................................................................3-8

Ground terminals ...........................................................................................................................................................3-8

Accuracy......................................................................................................................................................... 3-8

UMDAS 0802DA channel gain queue feature.............................................................................................. 3-11

Synchronizing multiple units........................................................................................................................ 3-11

Chapter 4

Specifications.................................................................................................................................... 4-1

Analog input ................................................................................................................................................... 4-1

Analog output ................................................................................................................................................. 4-3

Digital input/output......................................................................................................................................... 4-3

External trigger............................................................................................................................................... 4-4

External clock input/output............................................................................................................................. 4-4

Counter section............................................................................................................................................... 4-4

vii

UMDAS 0802DA User's Guide

Non-volatile memory...................................................................................................................................... 4-5

Microcontroller............................................................................................................................................... 4-5

Power.............................................................................................................................................................. 4-5

General ........................................................................................................................................................... 4-6

Environmental ................................................................................................................................................ 4-6

Mechanical ..................................................................................................................................................... 4-6

Main connector and pin out............................................................................................................................ 4-6

4-channel differential mode ........................................................................................................................................... 4-6

8-channel single-ended mode......................................................................................................................................... 4-7

viii

Preface

About this User's Guide

What you will learn from this user's guide

This user's guide explains how to install, configure, and use the UMDAS 0802DA, and also refers you to related
documents available on our web site, and to technical support resources.

Conventions in this user's guide

For more information on …

Text presented in a box signifies additional information and helpful hints related to the subject matter you are
reading.

Caution! Shaded caution statements present information to help you avoid injuring yourself and others,

damaging your hardware, or losing your data.

<#:#> Angle brackets that enclose numbers separated by a colon signify a range of numbers, such as those assigned

to registers, bit settings, etc.

bold text Bold text is used for the names of objects on the screen, such as buttons, text boxes, and check boxes. For

example:

1. Insert the disk or CD and click the OK button.

italic text Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase. For

example:
The InstaCal® installation procedure is explained in the Quick Start Guide.
Never touch the exposed pins or circuit connections on the board

xv

Chapter 1

Introducing the UMDAS 0802DA

This user's guide contains all of the information you need to connect the UMDAS 0802DA to your computer and to
the signals you want to measure. The UMDAS 0802DA is part of the CyberResearch™ brand of USB­based data acquisition products.

The UMDAS 0802DA is a USB 2.0 full-speed, device that is supported under popular Microsoft
operating systems. The UMDAS 0802DA is fully compatible with both USB 1.1 and USB 2.0 ports. Refer to the
"Be sure you are using the latest system software" note in Chapter 2, "Installing the UMDAS 0802DA," to make
sure you are using the latest USB drivers.

The UMDAS 0802DA features eight analog inputs, two 12-bit analog outputs, 16 digital I/O connections, and one
32-bit external event counter.

The analog inputs are software configurable for either eight 13-bit single-ended inputs or four 14-bit differential
inputs. The 16 digital I/O lines are independently selectable as input or output in two 8-bit ports. The 32-bit
counter can count TTL pulses. A SYNC (synchronization) input/output line allows you to pace the analog input
acquisition of one USB module from the clock output of another.

The UMDAS 0802DA is powered by the +5 volt USB supply from your computer. No external power is required.

The UMDAS 0802DA is shown in Figure 1-1. I/O connections are made to the screw terminals located along each
side of the UMDAS 0802DA.

®

Windows®

Figure 1-1. UMDAS 0802DA

1-1

UMDAS 0802DA User's Guide Introducing the UMDAS 0802DA

A

A

UMDAS 0802DA block diagram

UMDAS 0802DA functions are illustrated in the block diagram shown here.

USB

Full-speed

USB 2.0

Compliant

Interface

16

DIO

SPI

Port A

8

Port B

USB

Microcontroller

Screw terminal I/O connector

SYNC

TRIG_IN

nalog Input

8 single-ended

(13-bit) channels

or

4 differential

(14-bit) channels

nalog Output

2

channels
(12-bit)

Event Counter

1 channel

(32-bit)

8

2

1

Figure 1-2. UMDAS 0802DA functional block diagram

Software features

For information on the features of InstaCal and the other software included with your UMDAS 0802DA, refer to the
Quick Start Guide that shipped in PDF format on the CD which accompanies your device.

Screw terminal I/O connector

1-2

UMDAS 0802DA User's Guide Introducing the UMDAS 0802DA

Connecting a UMDAS 0802DA to your computer is easy

Installing a data acquisition device has never been easier.

! The UMDAS 0802DA relies upon the Microsoft Human Interface Device (HID) class drivers. The HID class

drivers ship with every copy of Windows that is designed to work with USB ports. We use the Microsoft
HID because it is a standard, and its performance delivers full control and maximizes data transfer rates for
your UMDAS 0802DA. No third-party device driver is required.

! The UMDAS 0802DA is plug-and-play. There are no jumpers to position, DIP switches to set, or interrupts to

configure.

! You can connect the UMDAS 0802DA before or after you install the software, and without powering down

your computer first. When you connect an HID to your system, your computer automatically detects it and
configures the necessary software. You can connect and power multiple HID peripherals to your system
using a USB hub.

! You can connect your system to various devices using a standard four-wire cable. The USB connector

replaces the serial and parallel port connectors with one standardized plug and port combination.

! You do not need a separate power supply module. The USB automatically delivers the electrical power

required by each peripheral connected to your system.

! Data can flow two ways between a computer and peripheral over USB connections.

1-3

Installing the UMDAS 0802DA

What comes with your UMDAS 0802DA shipment?

As you unpack your UMDAS 0802DA, verify that the following components are included.

Hardware

! UMDAS 0802DA

Chapter 2

! USB cable (2 meter length)

Additional documentation

In addition to this hardware user's guide, you should also receive the Quick Start Guide (available in PDF on
the software CD that ships with your device. This document supplies a brief description of

the software you received with your UMDAS 0802DA and information regarding installation of that software.

2-1

UMDAS 0802DA User's Guide Installing the UMDAS 0802DA

Unpacking the UMDAS 0802DA

As with any electronic device, you should take care while handling to avoid damage from static
electricity. Before removing the UMDAS 0802DA from its packaging, ground yourself using a wrist strap or by
simply touching the computer chassis or other grounded object to eliminate any stored static charge.

If any components are missing or damaged, notify CyberResearch, Inc. immediately by
phone, fax, or e-mail:

! Phone: [phone] and follow the instructions for reaching Tech Support.
! Fax: [phone] to the attention of Tech Support
! Email: [e-mail]

Installing the software

Refer to the Quick Start Guide for instructions on installing the software. This booklet is available in PDF format
Ton the software CD which accompanies your device.

Installing the hardware

Be sure you are using the latest system software

Before you connect the UMDAS 0802DA, make sure that you are using the latest versions of the USB drivers.

Before installing the UMDAS 0802DA, download and install the latest Microsoft Windows updates. In particular,
when using Windows XP, make sure you have XP Hotfix KB822603 installed. This update is intended to
address a serious error in Usbport.sys when you operate a USB device. You can run Windows Update or
download the update from www.microsoft.com/downloads/details.aspx?familyid=733dd867-56a0-4956-b7fe-

e85b688b7f86&displaylang=en. For more information, refer to the Microsoft Knowledge Base article

"Availability of the Windows XP SP1 USB 1.1 and 2.0 update." This article is available at

support.microsoft.com/?kbid=822603.

To connect the UMDAS 0802DA to your system, turn your computer on, and connect the USB cable to a USB port
on your computer or to an external USB hub that is connected to your computer. The USB cable provides power
and communication to the UMDAS 0802DA.

When you connect the UMDAS 0802DA for the first time, a series of
(Windows XP) or dialogs (other Windows versions) open as the UMDAS 0802DA is detected by your computer.

Found New Hardware popup balloons

It is normal for multiple dialogs to open when you connect the UMDAS 0802DA for the first time.

2-2

UMDAS 0802DA User's Guide Installing the UMDAS 0802DA

The last popup balloon or dialog states "Your new hardware is installed and ready to use," and the LED on the
UMDAS 0802DA should flash and then remain lit. This indicates that communication is established between the
UMDAS 0802DA and your computer.

On most computers, you can install up to two UMDAS 0802DA units. If you need to connect more than two UMDAS
0802DAunits to your computer, contact Tech Support by phone [phone]), fax [phone]), or email
([e-mail])

Caution! Do not disconnect any device from the USB bus while the computer is communicating with the

UMDAS 0802DA, or you may lose data and/or your ability to communicate with your unit.

If the LED turns off

If the LED is illuminated but then turns off, the computer has lost communication with the UMDAS 0802DA. To
restore communication, disconnect the USB cable from the computer, and then reconnect it. This should restore
communication, and the LED should turn back on.

Allow the UMDAS 0802DA to operate for at least 30 minutes before using the device. This warm up time is
required to achieve the specified rated accuracy of measurements.

.

Calibrating the UMDAS 0802DA

The UMDAS 0802DA is shipped fully calibrated. Calibration coefficients are stored in EEPROM. Return the device
to CyberResearch, Inc. when calibration is required. The normal calibration interval is once per year.

2-3

Chapter 3

Functional Details

Theory of operation - analog input acquisition modes

The UMDAS 0802DA can acquire analog input data in two different modes – software paced and continuous scan.

Software paced mode

In software paced mode, you can acquire one analog sample at a time. You initiate the A/D conversion by
calling a software command. The analog value is converted to digital and returned to the computer. You can
repeat this procedure until you have the total number of samples that you want from one channel.

The maximum throughput sample rate in software paced mode is system-dependent.

Continuous scan mode

In continuous scan mode, you can acquire data from up to eight channels. The analog data is continuously
acquired, converted to digital values, and written to an on-board FIFO buffer until you stop the scan. The FIFO
buffer is serviced in blocks as the data is transferred from the UMDAS 0802DA to the memory buffer on your
computer.

The maximum continuous scan rate of 48 kS/s is an aggregate rate. The total acquisition rate for all channels
cannot exceed 48 kS/s. You can acquire data from one channel at 48 kS/s, two channels at 24 kS/s, and four
channels at 12 kS/s. You can start a continuous scan with either a software command or with an external
hardware trigger event.

External components

The UMDAS 0802DA has the following external components, as shown in Figure 3-1.

! USB connector
! LED
! Screw terminal banks (2)

LED

Screw terminal

Pins 1 to 20

Screw terminal

Pins 21 to 40

USB

connector

Figure 3-1. UMDAS 0802DA external components

3-1

UMDAS 0802DA User's Guide Functional Details

USB connector

The USB connector is on the right side of the UMDAS 0802DA. This connector provides +5 V power and
communication. The voltage supplied through the USB connector is system-dependent, and may be less than
5 V. No external power supply is required.

LED

The LED on the front of the housing indicates the communication status of the UMDAS 0802DA. It uses up to 5 mA
of current and cannot be disabled. Table 3-1 defines the function of the UMDAS 0802DA's LED.

Table 3-1. LED Illumination

LED Illumination Indication

Steady green The UMDAS 0802DA is connected to a computer or external USB hub.

Blinks continuously Data is being transferred.

Screw terminal wiring

The UMDAS 0802DA has two rows of screw terminals—one row on the top edge of the housing, and one row on
the bottom edge. Each row has 20 connections. Pin numbers are identified in Fi . gure 3-2

Figure 3-2. UMDAS 0802DA Screw terminal pin numbers

Screw terminal – pins 1-20

The screw terminals on the top edge of the UMDAS 0802DA (pins 1 to 20) provide the following connections:

! Eight analog input connections (
! Two analog output connections (
! One external trigger source (
! One SYNC terminal for external clocking and multi-unit synchronization (
! One voltage output source (
! Five analog ground connections (
! One ground connection (

GND)

! One external event counter connection (

CH0 IN to CH7 IN)

D/A OUT 0 to D/A OUT 1)

TRIG_IN)

SYNC)

2.5VREF)
AGND)

CTR)

3-2

UMDAS 0802DA User's Guide Functional Details

Screw terminal – pins 21-40

The screw terminals on the bottom edge of the (pins 21 to 40) provide the following connections:

! 16 digital I/O connections (
! One power connection (
! Three ground connections (

PortA0 to Port A7, and Port B0 to Port B7)

PC+5 V)

GND)

Main connector and pin out

Connector type Screw terminal

Wire gauge range 16 AWG to 30 AWG

AGND

AGND

CH7 IN

CH6 IN

AGND

CH5 IN

20 CTR

19 SYNC

18 TRIG IN

17 GND

16 +2.5VREF1514 D/A OUT 1

13 D/A OUT 01211109

8

7 CH4 IN

6AGND

5 CH3 IN

4 CH2 IN

3AGND

2 CH1 IN

1 CH0 IN

AGND

AGND

CH3 IN LO

CH3 IN HI

AGND

20 CTR

19 SYNC

18 TRIG_IN

17 GND

16 +2.5VREF1514 D/A OUT 1

13 D/A OUT 01211109

CH2 IN LO

8

7CH2 IN HI

6AGND

5CH1 IN LO

4CH1 IN HI

3AGND

2CH0 IN LO

1CH0 IN HI

GND 40

Port B7 39

Port B6 38

Port B5 37

Port B4 36

8-channel single-ended mode pin out

GND 31

PC +5 V 30

GND 29

Port B3 35

Port B2 34

Port B1 33

Port A7 28

Port B0 32

Port A6 27

Port A5 26

Port A4 25

Port A3 24

Port A2 23

Port A1 22

Port A0 21

GND 40

Port B7 39

Port B6 38

Port B5 37

Port B4 36

GND 31

PC +5 V 30

GND 29

Port B3 35

Port B2 34

Port B1 33

Port A7 28

Port B0 32

Port A6 27

Port A5 26

Port A4 25

Port A3 24

Port A2 23

Port A1 22

Port A0 21

4-channel differential mode pin out

Analog input terminals (CH0 IN - CH7 IN)

You can connect up to eight analog input connections to the screw terminal containing pins 1 to 20 (CH0 IN
through

You can configure the analog input channels as eight single-ended channels or four differential channels. When
configured for differential mode, each analog input has 14-bit resolution. When configured for single-ended
mode, each analog input has 13-bit resolution, due to restrictions imposed by the A/D converter.

Single-ended configuration

When all of the analog input channels are configured for single-ended input mode, eight analog channels are
available. The input signal is referenced to signal ground (GND), and delivered through two wires:

! The wire carrying the signal to be measured connects to CH# IN.
! The second wire connects to AGND.

The input range for single-ended mode is ±10 V. No other ranges are supported in this mode. Figure 3-3
illustrates a typical single-ended measurement connection.

CH7 IN.) Refer to the "Main connector and pin out" diagrams above for the location of these pins.

3-3

UMDAS 0802DA User's Guide Functional Details

Pin 3

AGND

Pin 1

CH0

Figure 3-3. Single-ended measurement connection

The following example shows the single-ended measurement data acquired by TracerDAQ.

Figure 3-4. Measurement data (9 volt) plotted on TracerDAQ's Strip Chart

Single-ended measurements using differential channels

To perform a single-ended measurement using differential channels, connect the signal to "CHn IN HI" input,
and ground the associated "CHn IN LO" input.

Differential configuration

When all of the analog input channels are configured for differential input mode, four analog channels are
available. In differential mode, the input signal is measured with respect to the low input.

The input signal is delivered through three wires:

! The wire carrying the signal to be measured connects to CH0 IN HI, CH1 IN HI, CH2 IN HI, or CH3 IN

HI.

! The wire carrying the reference signal connects to CH0 IN LO, CH1 IN LO, CH2 IN LO, or CH3 IN LO.
! The third wire connects to GND.

A low-noise precision programmable gain amplifier (PGA) is available on differential channels to provide gains
of up to 20 and a dynamic range of up to 14-bits. Differential mode input voltage ranges are ±20 V, ±10 V,
±5 V, ±4 V, ±2.5 V, ±2.0 V, 1.25 V, and ±1.0 V.

3-4

UMDAS 0802DA User's Guide Functional Details

In differential mode, the following two requirements must be met for linear operation:

! Any analog input must remain in the −10V to +20V range with respect to ground at all times.
! The maximum differential voltage on any given analog input pair must remain within the selected voltage

range.

The input [common-mode voltage + signal] of the differential channel must be in the

−10 V to +20 V range in order to yield a useful result. For example, you input a 4 V pp sine wave to CHHI, and
apply the same sine wave 180° out of phase to CHLO. The common mode voltage is 0 V. The differential input
voltage swings from 4 V− (−4 V) = 8 V to (−4 V) − 4 V = −8V. Both inputs satisfy the

−10 V to +20 V input range requirement, and the differential voltage is suited for the ±10 V input range (see
). Figure 3-5

+4V

CHHI

0V

-4V

Measur ed Signa l

8V Differentia l

+4V

CHLO

-4V

+/-8V

Figure 3-5. Differential voltage example: common mode voltage of 0 V

If you increase the common mode voltage to 11 V, the differential remains at ±8 V. Although the [common­mode voltage + signal] on each input now has a range of +7 V to +15 V, both inputs still satisfy the −10 V to

+20 V input requirement (see ). Figure 3-6

+15V

+11V

CHHI

+/-8V

CHLO

8V Differential

+11V

+7V

Figure 3-6. Differential voltage example: common mode voltage of 11 V

Measured Signal

If you decrease the common-mode voltage to −7 V, the differential stays at ±8 V. However, the solution now
violates the input range condition of −10 V to +20 V. The voltage on each analog input now swings from −3V
to −11V. Voltages between −10 V and −3 V are resolved, but those below -10 V are clipped (see ). Figure 3-7

CHHI

CHLO

-3V

-7V

-11V

-3V

-7V

-11V

3V

8V Differential

+/-7V

Measured Signal

Figure 3-7. Differential voltage example: common mode voltage of -7 V

3-5

UMDAS 0802DA User's Guide Functional Details

Since the analog inputs are restricted to a −10 V to +20 V signal swing with respect to ground, all ranges except
±20V can realize a linear output for any differential signal with zero common mode voltage and full scale signal
inputs. The ±20 V range is the exception. You cannot put −20 V on CHHI and 0 V on CHLO since this violates
the input range criteria. shows some possible inputs and the expected results. Table 3-2

Table 3-2. Sample inputs and differential results

CHHI CHLO Result

−20 V 0 V In Valid

−15 V +5 V In Valid

−10 V 0 V −10 V

−10 V +10 V −20 V

0 V +10 V −10 V

0 V +20 V −20 V

+10 V −10 V +20 V

+10 V 0 V +10 V

+15 V −5 V +20 V

+20 V 0 +20 V

For more information on analog signal connections

For more information on single-ended and differential inputs, refer to the Guide to Signal Connections (this
document is available on the software CD which accompanies your device.

Analog output terminals (D/A OUT 0 and D/A OUT 1)

You can connect up to two analog output connections to the screw terminal pins 13 and 14 (D/A OUT 0 and
D/A OUT 1). Refer to the "Main connector and pin out" diagrams on page 3-3 for the location of these pins.

Each channel can be paced individually at rates up to 10,000 updates per second. Both channels can be paced
simultaneously using the same time base at 5000 updates per channel. The 0-4.096 V output range provides a
convenient 1 mV per LSB when setting the output voltage levels.

Digital I/O terminals (Port A0 to A7, and Port B0 to B7)

You can connect up to 16 digital I/O lines to the screw terminal containing pins 21 to 40 (Port A0 to Port A7,
and Port B0 to Port B7.) Refer to the "Main connector and pin out
these pins. You can configure each digital port for either input or output.

When you configure the digital bits for input, you can use the digital I/O terminals to detect the state of any
TTL level input. Refer to the switch shown in Figure and the schematic shown in . If the switch is

3-8

set to the +5 V input, Port A0 reads TRUE (1). If you move the switch to GND, Port A0 reads FALSE.

4

" diagrams on page 3-3 for the location of

Figure 3-9

Figure 3-8. Digital connection Port A0 detecting the state of a switch

3-6

UMDAS 0802DA User's Guide Functional Details

Port A0

+5V+GND

Figure 3-9. Schematic showing switch detection by digital channel Port A0

For more information on digital signal connections

For more information on digital signal connections and digital I/O techniques, available on the software CD
which accompanies your device.

Power terminals

The PC +5V connection (pin 30) draws power from the USB connector. This terminal is a 5 V output that is
supplied by the host computer. Refer to the "Main connector and pin out
of this pin.

Caution! The +5 V terminal is an output. Do not connect to an external power supply or you may damage

the UMDAS 0802DA and possibly the computer.

The maximum total output current that can be drawn from all UMDAS 0802DA connections (power, analog and
digital outputs) is 420 mA. This maximum applies to most personal computers and self-powered USB hubs.
Bus-powered hubs and notebook computers may limit the maximum available output current to 100 mA.

Just connecting the UMDAS 0802DA to your computer draws 80 mA of current from the USB +5 V supply. Once
you start running applications with the UMDAS 0802DA, each DIO bit can draw up to 2.5 mA, and each analog
output can draw 15 mA. The maximum amount of +5 V current available for experimental use, over and above
that required by the UMDAS 0802DA, is the difference between the total current requirement of the USB (based on
the application), and the allowed current draw of the PC platform (500 mA for desktop PCs and self-powered
hubs, or 100 mA for bus-powered hubs and notebook computers). With all outputs at their maximum output
current, you can calculate the total current requirement of the UMDAS 0802DA USB +5 V supply as follows:

(UMDAS 0802DA @ 80 mA) + (16 DIO @ 2.5 mA ea) + (2 AO @ 15 mA ea ) = 150 mA

For an application running on a PC or powered hub, the maximum available excess current is
500 mA − 150 mA = 350 mA. This number is the total maximum available current at the PC +5 V screw
terminals. CyberResearch, Inc. highly recommends that you figure in a safety factor of 20% below this
maximum current loading for your applications. A conservative, safe user maximum in this case would be
280 mA.

" diagrams on page 3-3 for the location

Since laptop computers typically allow up to 100 mA, the UMDAS 0802DA in a fully-loaded configuration may be
above that allowed by the computer. In this case, you must determine the per-pin loading in the application to
ensure that the maximum loading criteria is met. The per-pin loading is calculated by simply dividing the +5 V
by the load impedance of the pin in question.

External trigger terminal

The TRIG_IN connection (pin 18) can be configured for either rising or falling edge. Refer to the "Main

connector and pin out" diagrams on page 3-3 for the location of this pin.

Counter terminal

The CTR connection (pin 20) is input to the 32-bit external event. Refer to the "Main connector and pin out"
diagrams on page 3-3 for the location of this pin. The internal counter increments when the TTL levels
transition from low to high. The counter can count frequencies of up to 1 MHz.

3-7

UMDAS 0802DA User's Guide Functional Details

+2.5VREF terminal

The +2.5VREF connection (pin 16) is an output terminal that supplies 2.5 volts. The images below show the
+2.5VREF pin configured as the voltage source for channel 0.

Single-ended measurement

Differential measurement

SYNC terminal

The SYNC connection (pin 19) is a bidirectional I/O signal. You can use it for two purposes:

! Configure as an external clock input to externally source the A/D conversions. The SYNC terminal

supports TTL-level input signals of up to 48 kHz.

! Configure as an output to synchronize with a second UMDAS 0802DA and acquire data from 16 channels. For

information on synchronizing multiple units, refer to page 3-11.

Ground terminals

The four analog ground (AGND) connections provide a common ground for all UMDAS 0802DA input channels.
Four ground (GND) connections provide a common ground for the DIO, TRIG_IN, CTR, SYNC and PC +5V
connections. Refer to the "Main connector and pin out" diagrams on page 3-3 for the location of these pins.

Accuracy

The overall accuracy of any instrument is limited by the error components within the system. Quite often,
resolution is incorrectly used to quantify the performance of a measurement product. While "14-bits" or "1 part
in 16383" does indicate what can be resolved, it provides little insight into the quality of an absolute
measurement. Accuracy specifications describe the actual results that can be realized with a measurement
device.

There are three types of errors which affect the accuracy of a measurement system:

! offset
! gain
! nonlinearity

The primary error sources in the UMDAS 0802DA are offset and gain. Nonlinearity is small in the UMDAS 0802DA,
and is not significant as an error source with respect to offset and gain.

Figure 3-10 shows an example of an ideal, error-free, UMDAS 0802DA transfer function. The typical calibrated
accuracy of the UMDAS 0802DA is range-dependent, as explained in the "Specifications" chapter of this document.
We use a ±10 V range here as an example of what you can expect when performing a measurement in this
range.

3-8

UMDAS 0802DA User's Guide Functional Details

Input Voltage

+10V

Output Code

0

8192

-10V

16383

Figure 3-10. Ideal ADC transfer function

The offset error is measured at mid-scale. Ideally, a zero volt input should produce an output code of 8192. Any
deviation from this is an offset error.

Figure 3-11

shows an example of a UMDAS 0802DA transfer function with a ±2.44 mV offset error. Offset error

affects all codes equally by shifting the entire transfer function up or down along the input voltage axis.

The accuracy plots in Figure 3-11 are drawn for clarity and are not drawn to scale.

Input Voltage

+10V

Ideal

0

Actual

Offset=2.44mV

8192

-10V

2.44mV

16383

Output Code

Figure 3-11. ADC transfer function with offset error

Gain error is a change in the slope of the transfer function from the ideal, and is typically expressed as a
percentage of full-scale. Gain error is easily converted to voltage by multiplying the full-scale (FS) input by the
error.

3-9

A

UMDAS 0802DA User's Guide Functional Details

The accuracy plots in Figure 3-12 are drawn for clarity and are not drawn to scale.

Input Voltage

+10V

0

-10V

Ideal

8192

Gain error = +0.02% or +2 mV
Gain error = -0.02%, or -2 mV

ctual

Output Code

16383

Figure 3-12. ADC Transfer function with gain error

Figure 3-12 shows an example of a UMDAS 0802DA transfer function with a calibrated gain error of ±0.02%, or
±2 mV. This means that at full scale, neglecting the effect of offset for the moment, the measurement would be
within 2 mV of the actual value. Note that gain error is expressed as a ratio. Values near ±FS are more affected
from an absolute voltage standpoint than are values near mid-scale, which see little or no voltage error.

Combining these two error sources in , we have a plot of the error band of the UMDAS 0802DA for the

Figure 3-13

±10 V range. This is a graphical version of the typical accuracy specification of the product.

The accuracy plots in Figure 3-13 are drawn for clarity and are not drawn to scale

Ideal +2.44 mV + 2 mV

Ideal

Ideal -(2.44 mV + 2 mV)

Input Voltage

+10V

2.44 mV

0

-10V

Figure 3-13. Error band plot

8192

Ideal +2.44 mV + 2 mV

Ideal

Ideal -(2.44 mV + 2 mV)

Output Code

16383

3-10

UMDAS 0802DA User's Guide Functional Details

UMDAS 0802DA channel gain queue feature

The UMDAS 0802DA's channel gain queue feature allows you to set up a scan sequence with a unique per-channel
gain setting and channel sequence.

The channel gain queue feature removes the restriction of using an ascending channel sequence at a fixed gain.
This feature creates a channel list which is written to local memory on the UMDAS 0802DA. Each element of the
channel list is made up of a channel number and range setting. An example of a four-element list is shown in

. Table 3-3

Table 3-3. Sample channel gain queue list

Element Channel Range

0 CH0 BIP10V

1 CH3 BIP5V

2 CH1 BIP10V

3 CH2 BIP1V

When a scan begins with the gain queue enabled, the UMDAS 0802DA reads the first element, sets the appropriate
channel number and range, and then acquires a sample. The properties of the next element are then retrieved,
and another sample is acquired. This sequence continues until all elements in the gain queue have been selected.
When the end of the channel list is detected, the sequence returns to the first element in the list.

This sequence repeats until the specified number of samples is gathered. You must carefully match the gain to
the expected voltage range of the associated channel — otherwise, an over range condition can occur. Although
this condition does not damage the UMDAS 0802DA, it does produce a useless full-scale reading. It can also
introduce a long recovery time from saturation, which can affect the next measurement in the queue.

Synchronizing multiple units

You can connect the SYNC pin of two UMDAS 0802DA units together in a master/slave configuration and acquire
data from the analog inputs of both devices using one clock.

By default, the SYNC pin (pin 19) is set for pacer output, and sends the internal pacer A/D clock signal to the
screw terminal. You can use this signal as a clock input to a second USB unit by connecting it to the SYNC pin
of the second USB unit.

When used as a clock input, the SYNC pin operates in one of two modes – Continuous or Gated. The mode is
software-selectable using InstaCal.

! In the default Continuous mode, the UMDAS 0802DA ignores the first clock pulse in order to ensure adequate

setup time.

Use Continuous mode if the unit is being paced from a continuous clock source, such as a generator.

! In the Gated mode, it is assumed that the clock signal will be held off for an adequate amount of time for

setup to occur. No clock pulses are ignored.

Use Gated mode if you want to use the UMDAS 0802DA unit as a slave, and the source of the external clock is
another USB unit.

To synchronize a master UMDAS 0802DA with a slave UMDAS 0802DA and acquire data from the analog inputs of
both devices using one clock, follow the steps below.

1.

Connect the SYNC pin of the master UMDAS 0802DA to the SYNC pin of the slave UMDAS 0802DA.

2.

Run InstaCal.

3.

From the
slave. The

PC Board List on the InstaCal main form, double-click on the UMDAS 0802DA you want to use as a

Board Configuration dialog opens.

3-11

UMDAS 0802DA User's Guide Functional Details

4. Select Gated from the Ext. Clock Type drop-down list.

5. Set the Universal Library EXTCLOCK option with cbAInScan()/AInScan for the slave UMDAS 0802DA to

enable pacing from the master USB device.

This InstaCal option does not affect internally paced acquisition. It only affects scans that use the

EXTCLOCK

option.

An example of a master/slave configuration is shown here.

For the slave UMDAS 0802DA,

Master

Slave

UMDAS 0802DA

P

Set the Universal Library option
with .

SYNC pin

pin 19

Figure 3-14. Configuring for synchronous data acquisition

Slave

UMDAS 0802DA

cbAInScan()/AInScan()

This configures the SYNC pin on the slave
unit for input and enables pacing from the
master UMDAS 0802DA.

EXTCLOCK

When you are operating one UMDAS 0802DA, do not set the EXTCLOCK option unless you are using an external
clock for A/D pacing.

3-12

Chapter 4

Specifications

Typical for 25°C unless otherwise specified.

Specifications in italic text are guaranteed by design.

Analog input

Table 4-1. Analog input specifications

Parameter Conditions Specification

A/D converter type

Input voltage range for linear operation, single-ended
mode

Input common-mode voltage range for linear
operation, differential mode

Absolute maximum input voltage CHx to GND ±28 V max

Input current (Note 1)

Number of channels

Input ranges, single-ended mode

Input ranges, differential mode

Throughput (Note 2)

Channel gain queue

Integral linearity error

Differential linearity error

Absolute Accuracy Long Term Drift
(Note 4)

2.5VREF accuracy (pin 16) ±36.25 mV max.

Trigger source

Note 1: Input current is a function of applied voltage on the analog input channels. For a given input

voltage, V

, the input leakage is approximately equal to (8.181*Vin-12) µA.

in

CHx to GND ±10 volts (V) max

CHx to GND –10 V min, +20 V max

Vin = +10 V 70 microamperes (µA) typ

Vin = 0 V –12 µA typ

Vin = –10 V –94 µA typ

Software paced

Continuous scan 48 kilosamples per second (kS/s)

Up to 16
elements

Differential 14-bits, no missing codes Resolution (Note 3)

Single-ended 13-bits

±20V range ±3LSB typ. (delta t = 1000 hrs)

±4V range ±6LSB typ. (delta t = 1000 hrs)

±1V range ±8LSB typ. (delta t = 1000 hrs)

Source 5 mA max. 2.5VREF output current (pin 16)

Sink 20 µA min, 100 µA typ

Software
selectable

Successive approximation type

8 single-ended / 4 differential,
software selectable

±10 V, G=2

±20 V, G=1
±10 V, G=2
±5 V, G=4
±4 V, G=5
±2.5 V, G=8
±2.0 V, G=10
±1.25 V, G=16
±1.0 V, G=20
Software selectable

250 samples per second (S/s) typ,
PC-dependent

Software configurable channel, range,
and gain.

±2 least significant bit (LSB) typ

±0.5 LSB typ

External digital: TRIG_IN

4-1

UMDAS 0802DA User's Guide Specifications

Note 2:

Maximum throughput scanning to PC memory is machine dependent. The rates specified are for
Windows XP only. Maximum rates on operating systems that predate XP may be less and must
be determined through testing on your machine

Note 3:

Note 4:

The ADS7871 converter only returns 13-bits (0 to 8192 codes) in single-ended mode.

Extrapolating the long term drift accuracy specifications will provide the approximate long term
drift of the UMDAS 0802DA intermediate input ranges.

Table 4-2. Accuracy, differential mode

Range Absolute Accuracy 25°C (±mV) Absolute Accuracy 0 to 50°C (±mV)

±20 V 10.98 49.08

±10 V 7.32 33.42

±5 V 3.66 20.76

±4 V 2.92 19.02

±2.5 V 1.83 14.97

±2 V 1.70 14.29

±1.25 V 1.21 12.18

±1 V 1.09 11.63

Table 4-3. Accuracy, single-ended mode

Range Absolute Accuracy 25°C (±mV) Absolute Accuracy 0 to 50°C (±mV)

±10 V 10.98 49.08

Table 4-4. Noise performance, differential mode

Range Typical counts Least significant bit

±20 V 8 1.21

±10 V 8 1.21

±5 V 9 1.36

±4 V 10 1.51

±2.5 V 12 1.81

±2 V 14 2.12

±1.25 V 18 2.72

±1 V 22 3.33

Table 4-5. Noise performance, single-ended mode

Range Typical Counts LSB

rms

±10 V 8.0 1.21

root mean square

(LSB

rms)

4-2

UMDAS 0802DA User's Guide Specifications

Analog output

Table 4-6. Analog output specifications

Parameter Conditions Specification

Resolution

Output range

Number of channels

Throughput (Note 5)

Power on and reset voltage

Output drive Each D/A OUT ±15 mA

Slew rate

Note 5: Maximum throughput scanning from PC memory is machine dependent. The rates specified are

for Windows XP only. Maximum rates on operating systems that predate XP may be less and
must be determined through testing on your machine.

Software paced 250 S/s single channel typical, PC dependent

Single channel, continuous scan 10 kS/s

Dual channel, continuous scan,
simultaneous update

Table 4-7. Analog output accuracy

12-bits, 1 in 4096

0 to 4.096 V, 1 mV per LSB.

2

5 kS/s

0V, ±20 mV typ. (initializes to 000h code)

0.8 V/microsecond (µs) typ

Range Accuracy (±LSB)

0 to 4.096 V 4.0 typ, 45.0 max

Table 4-8. Analog output accuracy components

Range % of FSR (±) Gain Error at FS (±mV) Offset (±mV)

(Note 6)

0 to 4.096 V 0.1 typ, 0.9 max 4.0 typ, 36.0 max 1.0 typ, 9.0 max 4.0 typ, 45.0 max

Note 6: Zero-scale offsets may result in a fixed zero-scale error producing a "dead-band” digital input

Accuracy at FS (±mV)

code region.. In this case, changes in digital input code at values less than 0x040 may not
produce a corresponding change in the output voltage. The UMDAS 0802DA offset error is tested and
specified at code 0x040.

Digital input/output

Table 4-9. Digital I/O specifications

Digital type CMOS

Number of I/O 16 (Port A0 through A7, Port B0 through B7)

Configuration 2 banks of 8

Pull-up/pull-down
configuration

Input high voltage 2.0 V min, 5.5 V absolute max

Input low voltage 0.8 V max, –0.5 V absolute min

Output high voltage
(IOH = –2.5 mA)

Output low voltage
(IOL = 2.5 mA)

Power on and reset state Input

All pins pulled up to Vs via 47 K resistors (default). Positions available for pull-down
to ground. Hardware selectable via zero ohm (Ω) resistors as a factory option.

3.8 V min

0.7 V max

4-3

(

r

d

V

L

UMDAS 0802DA User's Guide Specifications

External trigger

Table 4-10. Digital trigger specifications

Parameter Conditions Specification

Trigger source (Note 7) External digital TRIG_IN

Trigger mode

Trigger latency

Trigger pulse width

Input high voltage

Input low voltage

Input leakage current

Note 7: TRIG_IN is a Schmitt trigger input protected with a 1.5 kilohm (kΩ) series resistor.

Software
selectable

Edge sensitive: user configurable for CMOS compatible rising or
falling edge.

10 µs max

1 µs min

4.0 V min, 5.5 V absolute max

1.0 V max, –0.5 V absolute min

±1.0 µA

External clock input/output

Table 4-11. External clock I/O specifications

Parameter Conditions Specification

Pin name

Pin type

Input clock rate

Input leakage current Input mode ±1.0 µA

Input high voltage

Input low voltage

Note 8: SYNC is a Schmitt trigger input and is over-current protected with a 200 Ω series resistor.

Output (default) Outputs internal A/D pacer clock. Software selectable direction

Input Receives A/D pacer clock from external source.

Input mode 1 µs min Clock pulse width

Output mode 5 µs min

IOH = –2.5 mA 3.3 V min Output high voltage (Note 8)

No load 3.8 V min

IOL = 2.5 mA 1.1 V max Output low voltage (Note 8)

No load 0.6 V max

SYNC

Bidirectional

48 KHz, maximum

4.0 V min, 5.5 V absolute max

1.0 V max, –0.5 V absolute min

Counter section

Table 4-12. Counter specifications

Pin name
Counter type Event counte
Number of channels 1
Input type TTL, rising edge triggere

Input source CTR screw terminal

Resolution 32 bits

Schmidt trigger hysteresis 20 mV to 100 m
Input leakage current ±1 µA

Maximum input frequency 1 MHz

High pulse width 500 ns min

ow pulse width 500 ns min

Input high voltage 4.0 V min, 5.5 V absolute max
Input low voltage 1.0 V max, –0.5 V absolute min

Note 9) CTR

Note 9: CTR is a Schmitt trigger input protected with a 1.5K Ω series resistor.

4-4

UMDAS 0802DA User's Guide Specifications

Non-volatile memory

Table 4-13. Non-volatile memory specifications

EEPROM 1,024 bytes

EEPROM Configuration

Address Range Access Description

0x000-0x07F Reserved 128 bytes system data

0x080-0x1FF Read/write 384 bytes cal data

0x200-0x3FF Read/write 512 bytes user area

Microcontroller

Table 4-14. Microcontroller specifications

Type High performance 8-bit RISC microcontroller

Program memory 16,384 words

Data memory 2,048 bytes

Power

Table 4-15. Power specifications

Parameter Conditions Specification

Supply current (Note 10)

+5V USB power available
(Note 11)

Note 10:

This is the total current requirement for the UMDAS 0802DA which includes up to 10 mA for the

Connected to self-powered hub
Connected to externally-powered root port hub

Connected to bus-powered hub 4.1 V min, 5.25 V max

Connected to self-powered hub
Connected to externally-powered root port hub

Connected to bus-powered hub 20 mA max

80 mA

4.5 V min, 5.25 V max

420 mA max Output current (Note 12)

status LED.

Note 11:

Self-powered hub refers to a USB hub with an external power supply. Self-powered hubs allow a
connected USB device to draw up to 500 mA.

Root port hubs reside in the PC’s USB host controller. The USB port(s) on your PC are root port
hubs. All externally powered root port hubs (desktop PCs) provide up to 500 mA of current for a
USB device. Battery-powered root port hubs provide 100 mA or 500 mA, depending upon the
manufacturer. A laptop PC that is not connected to an external power adapter is an example of a
battery-powered root port hub.

Bus powered hubs receive power from a self-powered or root port hub. In this case the maximum
current available from the USB +5 V is 100 mA. The minimum USB +5 V voltage level can be
as low as 4.1 V.

Note 12:

Output current refers to the total amount of current that can be sourced from the USB +5 V,
analog outputs and digital outputs.

4-5

UMDAS 0802DA User's Guide Specifications

General

Table 4-16. General specifications

Parameter Conditions Specification

Device type

Device compatibility

USB 2.0 full speed

USB 1.1, USB 2.0

Environmental

Table 4-17. Environmental specifications

Operating temperature range 0 to 70 °C

Storage temperature range –40 to 70 °C

Humidity 0 to 90% non-condensing

Mechanical

Table 4-18. Mechanical specifications

Dimensions 79 millimeters (mm) long x 82 mm wide x 25 mm high

USB cable length 3 meters max

User connection length 3 meters max

Main connector and pin out

Table 4-19. Main connector specifications

Connector type Screw terminal

Wire gauge range 16 AWG to 30 AWG

4-channel differential mode

Pin Signal Name Pin Signal Name

1 CH0 IN HI 21 Port A0
2 CH0 IN LO 22 Port A1
3 AGND 23 Port A2
4 CH1 IN HI 24 Port A3
5 CH1 IN LO 25 Port A4
6 AGND 26 Port A5
7 CH2 IN HI 27 Port A6
8 CH2 IN LO 28 Port A7
9 AGND 29 GND
10 CH3 IN HI 30 PC+5V
11 CH3 IN LO 31 GND
12 AGND 32 Port B0
13 D/A OUT 0 33 Port B1
14 D/A OUT 1 34 Port B2
15 AGND 35 Port B3
16 +2.5VREF 36 Port B4
17 GND 37 Port B5
18 TRIG IN 38 Port B6
19 SYNC 39 Port B7
20 CTR 40 GND

4-6

UMDAS 0802DA User's Guide Specifications

8-channel single-ended mode

Pin Signal Name Pin Signal Name

1 CH0 IN 21 Port A0
2 CH1 IN 22 Port A1
3 AGND 23 Port A2
4 CH2 IN 24 Port A3
5 CH3 IN 25 Port A4
6 AGND 26 Port A5
7 CH4 IN 27 Port A6
8 CH5 IN 28 Port A7
9 AGND 29 GND
10 CH6 IN 30 PC+5V
11 CH7 IN 31 GND
12 AGND 32 Port B0
13 D/A OUT 0 33 Port B1
14 D/A OUT 1 34 Port B2
15 AGND 35 Port B3
16 +2.5VREF 36 Port B4
17 GND 37 Port B5
18 TRIG IN 38 Port B6
19 SYNC 39 Port B7
20 CTR 40 GND

4-7

CyberResearch® Data Acquisition UMDAS 0802DA

Product Service

Diagnosis and Debug

CyberResearch, Inc. maintains technical support lines staffed by experienced
Applications Engineers and Technicians. There is no charge to call and we will
return your call promptly if it is received while our lines are busy. Most problems
encountered with data acquisition products can be solved over the phone. Signal
connections and programming are the two most common sources of difficulty.
CyberResearch support personnel can help you solve these problems, especially
if you are prepared for the call.

To ensure your call’s overall success and expediency:

1) Have the phone close to the PC so you can conveniently and quickly take

action that the Applications Engineer might suggest.

2) Be prepared to open your PC, remove boards, report back-switch or

jumper settings, and possibly change settings before reinstalling the
modules.

3) Have a volt meter handy to take measurements of the signals you are

trying to measure as well as the signals on the board, module, or power
supply.

4) Isolate problem areas that are not working as you expected.

5) Have the source code to the program you are having trouble with available

so that preceding and prerequisite modes can be referenced and
discussed.

6) Have the manual at hand. Also have the product’s utility disks and any

other relevant disks nearby so programs and version numbers can be
checked.

Preparation will facilitate the diagnosis procedure, save you time, and avoid
repeated calls. Here are a few preliminary actions you can take before you call
which may solve some of the more common problems:

1) Check the PC-bus power and any power supply signals.

2) Check the voltage level of the signal between SIGNAL HIGH and SIGNAL

LOW, or SIGNAL+ and SIGNAL– . It CANNOT exceed the full scale range
of the board.

3) Check the other boards in your PC or modules on the network for address

and interrupt conflicts.

4) Refer to the example programs as a baseline for comparing code.

CyberResearch, Inc. 31

25 Business Park Drive P: [phone]; F: [phone]
Branford, CT USA www.cyberresearch.com

UMDAS 0802DA CyberResearch® Data Acquisition

Intentionally Blank

32 ©Copyright 2006 CyberResearch, Inc.

CyberResearch® Data Acquisition UMDAS 0802DA

Warranty Notice

CyberResearch, Inc. warrants that this equipment as furnished will be free from
defects in material and workmanship for a period of one year from the confirmed
date of purchase by the original buyer and that upon written notice of any such
defect, CyberResearch, Inc. will, at its option, repair or replace the defective item
under the terms of this warranty, subject to the provisions and specific exclusions
listed herein.

This warranty shall not apply to equipment that has been previously repaired or
altered outside our plant in any way which may, in the judgment of the manufacturer,
affect its reliability. Nor will it apply if the equipment has been used in a manner
exceeding or inconsistent with its specifications or if the serial number has been
removed.

CyberResearch, Inc. does not assume any liability for consequential damages as a
result from our products uses, and in any event our liability shall not exceed the
original selling price of the equipment.

The equipment warranty shall constitute the sole and exclusive remedy of any Buyer
of Seller equipment and the sole and exclusive liability of the Seller, its successors
or assigns, in connection with equipment purchased and in lieu of all other
warranties expressed implied or statutory, including, but not limited to, any implied
warranty of merchant ability or fitness and all other obligations or liabilities of seller,
its successors or assigns.

The equipment must be returned postage prepaid. Package it securely and insure it.
You will be charged for parts and labor if the warranty period has expired.

Returns and RMAs

If a CyberResearch product has been diagnosed as being non-functional, is visibly
damaged, or must be returned for any other reason, please call for an assigned
RMA number. The RMA number is a key piece of information that lets us track and
process returned merchandise with the fastest possible turnaround time.

PLEASE CALL FOR AN RMA NUMBER!

Packages returned without an RMA number will be refused!

In most cases, a returned package will be refused at the receiving dock if its
contents are not known. The RMA number allows us to reference the history of
returned products and determine if they are meeting your application’s requirements.
When you call customer service for your RMA number, you will be asked to provide
information about the product you are returning, your address, and a contact person
at your organization.

Please make sure that the RMA number is prominently

displayed on the outside of the box.

• Thank You •

CyberResearch, Inc. 33

25 Business Park Drive P: [phone]; F: [phone]
Branford, CT USA www.cyberresearch.com

UMDAS 0802DA CyberResearch® Data Acquisition

Intentionally Blank

34 ©Copyright 2006 CyberResearch, Inc.

CyberResearch, Inc.

25 Business Park Drive

Branford, CT 06405 USA

P: [phone]; F: [phone]

www.cyberresearch.com