National Instruments USB-7856 User manual

USB-7856

Getting Started

2023-05-10

Contents

Getting Started. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Safety Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Electromagnetic Compatibility Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Unpacking the Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Verifying the Kit Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Installing Soware on the Host Computer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Installing the Hardware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Connecting the USB Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Powering the Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Verifying Hardware Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Connecting Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Where to Go Next. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Where to Go for Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

ni.com

USB-7856 Getting Started

Getting Started

This document describes how to begin using the NI USB-7856R.

Instruments>\_Legal Information directory for information about NI copyright,

patents, trademarks, warranties, product warnings, and export compliance.

Safety Guidelines

Caution Do not operate the NI USB-7856R in a manner not specified in

this user manual. Product misuse can result in a hazard. You can

compromise the safety protection built into the product if the product is

damaged in any way. If the product is damaged, return it to National

Instruments for repair.

Electromagnetic Compatibility Guidelines

This product was tested and complies with the regulatory requirements and limits

for electromagnetic compatibility (EMC) as stated in the product specifications.

These requirements and limits are designed to provide reasonable protection

against harmful interference when the product is operated in its intended

operational electromagnetic environment.

This product is intended for use in residential, commercial, and industrial locations.

However, harmful interference may occur in some installations or when the product

is connected to a peripheral device or a test object. To minimize interference with

radio and television reception and prevent unacceptable performance degradation,

install and use this product in strict accordance with the instructions in the product

documentation.

Furthermore, any changes or modifications to the product not expressly approved

by National Instruments could void your authority to operate it under your local

regulatory rules.

USB-7856 Getting Started

Caution To ensure the specified EMC performance, you must install the

included snap-on ferrite bead onto the DC power cord of the power supply

as described in this document.

Notice To ensure the specified EMC performance, operate this product

only with shielded cables and accessories.

Unpacking the Kit

Notice To prevent electrostatic discharge (ESD) from damaging the

device, ground yourself using a grounding strap or by holding a grounded

object, such as your computer chassis.

1. Touch the antistatic package to a metal part of the computer chassis.

2. Remove the device from the package and inspect the device for loose

components or any other sign of damage.

Notice Never touch the exposed pins of connectors.

Note Do not install a device if it appears damaged in any way.

3. Unpack any other items and documentation from the kit.

Store the device in the antistatic package when the device is not in use.

Verifying the Kit Contents

Verify the following components are in your kit.

ni.com

USB-7856 Getting Started

Figure 1. Kit Contents for the NI USB-7856R

1. NI USB-7856R Module

2. USB Cable

3. Ferrite Bead

4. NI-RIO Media

5. Power Supply

6. Getting Started Guide

Installing Soware on the Host Computer

Before using the NI USB-7856R, you must install the following application soware

and device drivers on the host computer.

1. Install the driver soware using either the media included in your kit or by

downloading the latest version from ni.com/downloads.

2. Follow the instructions in the installation prompts.

1. Windows users may see access and security messages during

installation. Accept the prompts to complete the installation.

3. When the installer completes, a dialog box asks if you want to restart, shut

down, or restart later. Select Restart.

Installing the Hardware

USB-7856 Getting Started

Connecting the USB Cable

USB modules can be connected directly to the host PC, to a powered USB hub, or to

an NI PXI or PXI Express chassis featuring a USB port.

1. Connect the USB cable to the NI USB-7856R using the cable device port.

2. Connect the other end of the USB cable to the host PC, powered hub, or

chassis.

3. Use the jackscrew on the locking USB cable to securely attach the cable to the

NI USB-7856R.

Powering the Module

Caution To ensure the specified EMC performance, install the included

snap-on ferrite bead onto the DC power cord of the power supply in

accordance with the instructions provided.

1. Install the ferrite bead by opening the housing and looping the power supply

once through the center of the bead. Ensure the ferrite bead is as close to the

end of the cable as practical.

2. Close the ferrite bead until the locking tabs engage securely.

Figure 2. Installing the Ferrite Bead

9-30 V

C V

20 W MAX

1. Power Supply

2. Ferrite

3. Connect the power supply to the NI USB-7856R.

ni.com

USB-7856 Getting Started

4. Connect the other end of the power supply to a user-supplied power cord.

5. Connect the user-supplied power cord to the appropriate power source.

6. Turn the power switch on the NI USB-7856R to the on position.

USB Device Security Cable Slot

The security cable slot allows you to attach an optional laptop lock to your NI

USB-7856R.

Note The security cable is designed to act as a deterrent, but might not

prevent the device from being mishandled or stolen. For more

information, refer to the documentation that accompanied the security

cable.

Note The security cable slot on the USB device might not be compatible

with all laptop lock cables.

Refer to the documentation that accompanied the security cable for installation

instructions.

Verifying Hardware Installation

You can verify that the system recognizes the USB device by using Measurement &

Automation Explorer (MAX).

1. Launch MAX by navigating to Start » All Programs » National

Instruments » MAX or by clicking the MAX desktop icon.

2. Expand Devices and Interfaces.

3. Verify that the device appears under Devices and Interfaces.

If the device does not appear, press <F5> to refresh the view in MAX. If the

device does not appear aer refreshing the view, visit ni.com/support for

troubleshooting information.

Connecting Signals

The following figure shows the I/O connector pin assignments and locations for the

NI USB-7856R.

USB-7856 Getting Started

Caution To ensure the specified EMC performance, operate this product

only with shielded cables and accessories.

Note NI is not liable for connections that exceed any of the maximum

ratings of input or output signals on the NI USB-7856R and on the

computer chassis. For the maximum input and output ratings for each

signal, refer to the NI USB-7856R Specifications, available at ni.com/

manuals.

Figure 3. NI USB-7856R Connector Pin Assignments and Locations

DIO30

GND

DIO28

GND

DIO26

GND

DIO24

GND

DIO22

GND

DIO20

GND

DIO18

GND

DIO16

GND

DIO14

GND

DIO12

GND

DIO10

GND

DIO8

GND

DIO6

GND

DIO4

GND

DIO2

GND

DIO0

GND

DIO31

DIO29

GND

DIO25

GND

DIO23

GND

DIO27

GND

DIO21

GND

DIO19

GND

DIO17

GND

DIO15

GND

DIO13

GND

DIO11

GND

DIO9

GND

DIO7

GND

DIO5

GND

DIO3

GND

DIO1

GND

68 34

67 33

66 32

65 31

64 30

63 29

62 28

61 27

60 26

59 25

58 24

57 23

56 22

55 21

54 20

53 19

52 18

51 17

50 16

49 15

48 14

47 13

46 12

45 11

44 10

43 9

42 8

41 7

40 6

39 5

38 4

37 3

36 2

35 1 +5V

DIO0

DIO1

DIO2

DIO3

DIO4

DIO5

DIO6

DIO7

DIO9

DIO11

DIO13

DIO15

AO7

AO6

AO5

AO4

AO3

AO2

AO1

AO0

AISENSE

AI7+

AIGND6

AI6+

AI5+

AIGND4

AI4+

AI3+

AIGND2

AI2+

AI1+

AIGND0

AI0+

+5V

DGND

DIO8

DIO10

DIO12

DIO14

AOGND7

AOGND6

AOGND5

AOGND4

AOGND3

AOGND2

AOGND1

AOGND0

AI7–

AIGND7

AI6–

AI5–

AIGND5

AI4–

AI3–

AIGND3

AI2–

AI1–

AIGND1

AI0–

68 34

67 33

66 32

65 31

64 30

63 29

62 28

61 27

60 26

59 25

58 24

57 23

56 22

55 21

54 20

53 19

52 18

51 17

50 16

49 15

48 14

47 13

46 12

45 11

44 10

43 9

42 8

41 7

40 6

39 5

38 4

37 3

36 2

35 1

CONNECTOR 0

(DIO)

CONNECTOR 1

(MIO)

TERMINAL 34

TERMINAL 68

TERMINAL 1

TERMINAL 35

TERMINAL 34

TERMINAL 68

TERMINAL 1

TERMINAL 35

Where to Go Next

Refer to the following figure for information about other product tasks and

associated resources for those tasks.

ni.com

USB-7856 Getting Started

Where to Go for Support

USB-7856 Getting Started

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