Measurement USB-2404-UI User Manual

USB-2020

User's Guide

12-bit, Ultra High-Speed USB Device

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HM USB-2020

Table of Contents

Preface

About this User's Guide ....................................................................................................................... 5

What you will learn from this user's guide ......................................................................................................... 5

Conventions in this user's guide ......................................................................................................................... 5

Where to find more information ......................................................................................................................... 5

Chapter 1

Introducing the USB-2020 .................................................................................................................... 6

Functional block diagram ................................................................................................................................... 6

Chapter 2

Installing the USB-2020 ........................................................................................................................ 7

What comes with your USB-2020 shipment? ..................................................................................................... 7

Hardware .......................................................................................................................................................................... 7

Software ............................................................................................................................................................................ 7

Documentation .................................................................................................................................................................. 7

Optional components ........................................................................................................................................................ 7

Unpacking........................................................................................................................................................... 7

Installing the software ........................................................................................................................................ 7

Installing the hardware ....................................................................................................................................... 8

Connecting the external power supply .............................................................................................................................. 8

Calibrating the hardware..................................................................................................................................... 9

Connecting the board for I/O operations ............................................................................................................ 9

Connectors, cables, and accessory products ...................................................................................................................... 9

Cabling ............................................................................................................................................................. 10

Field wiring, signal termination and conditioning ...........................................................................................................10

Chapter 3

Functional Details ............................................................................................................................... 11

Analog input acquisition modes ....................................................................................................................... 11

Software paced .................................................................................................................................................................11

Continuous scan (hardware paced) ..................................................................................................................................11

BURSTIO ........................................................................................................................................................................11

Connectors and LEDs ....................................................................................................................................... 12

BNC connectors ...............................................................................................................................................................12

Status LEDs .....................................................................................................................................................................12

USB connector .................................................................................................................................................................12

External power connector ................................................................................................................................................12

40-pin auxiliary connector (J9) ........................................................................................................................................13

Signal connections ............................................................................................................................................ 14

Analog input ....................................................................................................................................................................14

External clock I/O ............................................................................................................................................................15

Digital I/O ........................................................................................................................................................................15

Trigger input ....................................................................................................................................................................16

Mechanical drawing ......................................................................................................................................... 17

Chapter 4

Specifications ...................................................................................................................................... 18

Analog input ..................................................................................................................................................... 18

Accuracy ..........................................................................................................................................................................19

Noise performance ...........................................................................................................................................................19

Analog input calibration ................................................................................................................................... 19

Digital input/output........................................................................................................................................... 20

External trigger ................................................................................................................................................. 21

USB-2020 User's Guide

External clock input/output............................................................................................................................... 21

Memory ............................................................................................................................................................ 21

Power ................................................................................................................................................................ 22

Environmental .................................................................................................................................................. 22

Mechanical ....................................................................................................................................................... 22

USB .................................................................................................................................................................. 22

Signal I/O connectors ....................................................................................................................................... 23

BNC connectors ...............................................................................................................................................................23

Auxiliary connector .........................................................................................................................................................23

About this User's Guide

What you will learn from this user's guide

This user's guide describes the Measurement Computing USB-2020 data acquisition device and lists device specifications.

Conventions in this user's guide

For more information

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.

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

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

Preface

Where to find more inf orm a ti on

Additional information about the USB-2020 is available on our website at www.mccdaq.com. You can also contact Measurement Computing Corporation by phone, fax, or email with specific questions.

 Knowledgebase:  Phone: 508-946-5100 and follow the instructions for reaching Tech Support  Fax: 508-946-9500 to the attention of Tech Support  Email:

techsupport@mccdaq.com

kb.mccdaq.com

Chapter 1

Introducing the USB-2020

The USB-2020 is a high-speed data acquisition USB board supported under the Windows® operating system.

The USB-2020 is compatible with both USB 1.1 and USB 2.0 ports. The speed of the device may be limited when using a USB 1.1 port due to the difference in transfer rates on the USB 1.1 versions of the protocol (lowspeed and full-speed).

The USB-2020 device provides the following features:

 two 20 MS/s analog inputs

o simultaneous sampling o 1 A/D per channel o 12-bit resolution o ±10 V, ±5 V, ±2 V, ±1 V voltage ranges (software-selectable) o 17 MHz input bandwidth

 64 megasample onboard memory

o 40 MS/s overall rate to onboard memory when acquiring from both channels (20 MS/s per channel) o 8 MS/s throughput to host computer

 Analog and digital triggering (level and edge )  Analog and digital gating  Eight digital I/O lines  Internal or external pacing of analog scans  Eight digital I/O lines  BNC connectors and 40-pin auxiliary connector for signal connections

Functional block diagram

USB-2020 functions are illustrated in the block diagram shown here.

Figure 1. Functional block diagr am

Chapter 2

Installing the USB-2020

What comes with your USB-2020 shipment?

Hardware

 USB-2020  USB cable (2-meter length)  External power supply and cord: 9 VDC, 3 A power adapter. MCC part number CB-PWR-9  Four nylon standoffs

Software

MCC DAQ Software CD

Documentation

MCC DAQ Quick Start Guide

The Quick Start Guide booklet provides an overview of the MCC DAQ software you received with the device, and includes information about installing the software. Please read this booklet completely before installing any software or hardware.

Optional components

 Cables

o Standard BNC cable o C40FF-x o C40-37F-x

 Screw termination boards

o CIO-MINI40 o CIO-MINI37 o SCB-37

Unpacking

As with any electronic device, you should take care while handling to avoid damage from static electricity. Before removing the USB-2020 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 your USB-2020 arrives already damaged, notify Measurement Computing Corporation immediately by phone, fax, or email.

 Knowledgebase:  Phone  Fax: 508-946-9500 to the attention of Tech Support  Email:

For website at

: 508-946-5100 and follow the instructions for reaching Tech Support

techsupport@mccdaq.com

international customers, contact your local distributor. Refer to the International Distributors section on our

www.mccdaq.com/International.

kb.mccdaq.com

Installing the software

Refer to the Quick Start Guide for instructions on installing the software on the MCC DAQ CD. This booklet is

available in PDF at

www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf.

USB-2020 User's Guide Installing the USB-2020

Installing the hardware

Before you connect the USB-2020 to your computer, connect the external power supply that was shipped with the device.

Disconnect USB, then power supply

When disconnecting the USB-2020, disconnect the USB cable first, and then disconnect the power supply.

Connecting the external power supply

Refer to Figure 8 on page 12 for the location of the connectors and LEDs mentioned in the following procedure.

Power to the USB-2020 is provided with the 9 VDC external power supply (CB-PWR-9). Connect the external

power supply before connecting the USB cable to the USB-2020 and your computer.

Complete the following steps to connect the power supply to the USB-2020:

1. Connect the external power cord to the USB-2020-power connector.

2. Plug the power supply into a power outlet.

The top ( is established. If the voltage supply is less than 7.3 V and/or a USB connection is not established, the

Ready LED is off.

Device Ready) LED is on (blue) when 9 VDC power is supplied the USB-2020 and a USB connection

Device

To connect the USB-2020 to your system, complete the following steps:

3. Connect the USB cable that was shipped with the device to the USB connector on the USB-2020.

The USB cable supplied with the USB-2020 has a higher gauge wire (24 AWG minimum VBUS/GND, 28 AWG minimum D+/D–) than generic USB cables, and is required for proper enumeration of the USB-2020.

4. Connect the other end of the USB cable to a USB port on your computer or to an external USB hub that is connected to your computer. The bottom (

USB Activity) LED turns on. The USB cable only provides

communication to the USB-2020.

If you are running Windows XP and connect the device to a USB 1.1 port, a balloon displays the message

USB device can perform faster if you connect to a USB 2.0 port. You can ignore this message. The

Your

USB-2020 functions properly when connected to a USB 1.1 port, although USB bandwidth is limited.

If the Device Ready LED turns off

If communication is lost between the device and the computer, the Device Ready LED turns off. Disconnect the USB cable from the computer and then reconnect it. This should restore communication, and the Device

Ready LED should turn on.

If your system does not detect the USB-2020

USB device not recognized message appears when you connect the USB-2020, complete the following

If a steps:

1. Unplug the USB cable from the USB-2020.

2. Unplug the external power cord from the power connector.

3. Plug the external power cord back into the power connector.

4. Plug the USB cable back into the USB-2020.

Your system should now properly detect the USB-2020 hardware. Contact technical support if your system still does not detect the USB-2020.

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