National Instruments USB-9201, USB-9221 User Manual

USER GUIDE AND SPECIFICATIONS

USB-9201/9221

8-Channel, 12-Bit Analog Input Devices

This user guide describes how to use the National Instruments
USB-9201/9221 devices and lists the specifications.

Introduction

This user guide describes how to use the National Instruments
USB-9201/9221. In this document, the USB-9201/9221 with screw
terminal and USB-9201/9221 with DSUB are referred to inclusively as the
USB-9201/9221. For information about installing, configuring, and
programming your system, refer to your system documentation.

The USB-9210/9221 data acquisition device provides a USB interface for
eight channels of 12-bit analog inputs with integrated signal conditioning.
The USB-9201/9211 consists of two components: an NI 9201/9221
module and a USB-9162 carrier, as shown in Figure 1.

NI 9201/9221

USB-9162

Hi-SPeed USB Carrier

NI USB-9162

Figure 1. USB-9201/9221 Components

Hi-Speed USB Carrier

NI USB-9162

USB-9201/9221

Dimensions

Figures 2 and 3 show the USB-9201/9221 device dimensions.

Hi-Speed USB Carrier

NI USB-9162

140.23 mm
(5.521 in.)

125.76 mm
(4.951 in.)

137.82 mm
(5.426 in.)

123.38 mm
(4.857 in.)

120.68 mm
(4.751 in.)

120.68 mm
(4.751 in.)

118.26 mm
(4.656 in.)

88.12 mm
(3.469 in.)

25.34 mm
(0.998 in.)

Figure 2. USB-9201/9221 Devices in Inches (Millimeters)

Hi-Speed USB Carrier

NI USB-9162

118.26 mm
(4.656 in.)

88.12 mm
(3.469 in.)

25.34 mm
(0.998 in.)

Figure 3. USB-9201/9221 (DSUB) Devices in Inches (Millimeters)

USB-9201/9221 User Guide and Specifications 2 ni.com

Safety Guidelines

Operate the USB-9201/9221 only as described in these operating
instructions.

Caution Although the NI 9201/9221 might have more stringent certification standards

than the USB-9201/9221, when used with the USB-9162 carrier, the combined system
might be limited. Refer to the Specifications section for more information.

Hot Surface This icon denotes that the component may be hot. Touching this component

may result in bodily injury.

Caution Do not disconnect I/O-side wires or connectors unless power has been switched

off or the area is known to be nonhazardous.

Caution Do not remove modules unless power has been switched off and the area is known

to be nonhazardous.

Caution The USB-9201/9221 is not certified for use in hazardous locations.

Safety Guidelines for Hazardous Voltages

You can connect hazardous voltages to the USB-9201/9221 with the screw
terminal only. Do not connect hazardous voltages to the USB-9201/9221
with DSUB.

If hazardous voltages are connected to the module, take the following
precautions. A hazardous voltage is a voltage >42.4 V

or 60 VDC to earth

pk

ground.

Caution Ensure that hazardous voltage wiring is performed only by qualified personnel

adhering to local electrical standards.

Caution Do not mix hazardous voltage circuits and human-accessible circuits on the same

module.

Caution Make sure that devices and circuits connected to the module are properly

insulated from human contact

Caution When module terminals are live with hazardous voltages, make sure that the

terminals are not accessible by using the high voltage screw terminal backshell. Refer to
the Assembling the High Voltage Screw Terminal Backshell section for more information.

© National Instruments Corporation 3 USB-9201/9221 User Guide and Specifications

Software

Software support for the USB-9201/9221 is provided by NI-DAQmx.

The NI-DAQmx CD contains example programs that you can use to get
started programming with the USB-9201/9221. Refer to the NI-DAQmx for
USB Devices Getting Started Guide that shipped with your device, and is
also accessible from Start»All Programs»National Instruments»
NI-DAQ, for more information.

Installing the USB-9201/9221

Installing the Software

Before installing the device, you must install the software you plan to use
with the device. Refer to the Software section of this guide and the
NI-DAQmx for USB Devices Getting Started Guide that shipped with your
device, and is also accessible from Start»All Programs»National
Instruments»NI-DAQ, for more information.

Installing the NI 9201/9221 in the USB-9162 Carrier

The NI 9201/9221 module and the USB-9162 carrier are packaged
separately. Refer to Figure 2, while completing the following assembly
steps:

1. Make sure that no signals are connected to the NI 9201/9221 module
and that the USB cable is not connected to the device.

2. Remove the protective cover from the 15-pin DSUB connector.

3. Align the I/O module with the carrier, as shown in Figure 4.

USB-9201/9221 User Guide and Specifications 4 ni.com

1

1 High Voltage Screw Terminal Backshell

Figure 4. Module Installation

4. Squeeze the latches and insert the NI 9201/9221 module into the
USB-9162 carrier.

5. Press firmly on the connector side of the NI 9201/9221 module until
the latches lock the module into place, as shown in Figure 5.

Figure 5. Locking Module into Place

6. Connect the USB cable to the assembled USB-9201/9221.

© National Instruments Corporation 5 USB-9201/9221 User Guide and Specifications