National Instruments PXI Terminal Block NI TB-2709 Manuel utilisateur

INSTALLATION GUIDE

NI TB-2709

PXI Terminal Block for S Series Devices

This installation guide describes how to install and connect signals to the

NI TB-2709 terminal block for use with PXI-6123/6133 S Series devices.

The TB-2709 can also be used with the PXI-6122/6132 devices to access

the first four AI channels.

Introduction

The TB-2709 is a terminal block assembly consisting of nine SMB

connectors and a 14-pin I/O connector. The terminal block assembly

connects directly to the front panel of National Instruments PXI-6122,

PXI-6123, PXI-6132, and PXI-6133 devices, eliminating the need for an

external cable.

Figure 1. TB-2709 Device View

1 Access Door to Configuration Switches

2 14-Pin I/O Connector (Digital Signals)

3 SMB Connectors (Analog Signals)

AI 0

AI 1

AI 2

AI 3

AI 4

AI 5

AI 6

AI 7

ART

TRIG

NI TB-2709 Installation Guide 2 ni.com

The nine SMB connectors on the TB-2709 allow you to easily connect

analog input signals to your National Instruments device. The 14-pin I/O

connector located on the bottom of the TB-2709 allows access to digital

signals.

Caution The TB-2709 is not designed for input voltages greater than 42 Vpk/60 VDC,

even if you install a voltage divider that reduces the voltage to within the input range of the

DAQ device. Input voltages greater than 42 Vpk/60 VDC can damage the TB-2709, any

device connected to it, and the host computer. Overvoltage also can cause an electric shock

hazard for the operator. National Instruments is not liable for damage or injury resulting

from such misuse.

What You Need to Get Started

You need the following to set up and use your terminal block:

❑NI TB-2709 Terminal Block Assembly

❑NI TB-2709 Installation Guide

❑One of the following:

– NI PXI-6122

– NI PXI-6123

– NI PXI-6132

– NI PXI-6133

❑S Series User Manual

❑Number 1 Phillips screwdriver

Safety Information

Cautions Do not operate the device in an explosive atmosphere or where there may be

flammable gases or fumes.

Do not operate damaged equipment. The safety protection features built into this device

can become impaired if the device becomes damaged in any way. If the device is damaged,

turn the device off and do not use it until service-trained personnel can check its safety.

If necessary, return the device to National Instruments for service and repair to ensure that

its safety is not compromised.

Do not operate this equipment in a manner that contradicts the information specified in this

document. Misuse of this equipment could result in a shock hazard.

©National Instruments Corporation 3 NI TB-2709 Installation Guide

Do not substitute parts or modify equipment. Because of the danger of introducing

additional hazards, do not install unauthorized parts or modify the device. Return the

device to National Instruments for service and repair to ensure that its safety features

are not compromised.

You must insulate all of your signal connections to the highest voltage with which the

TB-2709 can come in contact.

Connections, including power signals to ground and vice versa, that exceed any of the

maximum signal ratings on the terminal block can create a shock or fire hazard, or can

damage any or all of the boards connected to the host computer and the terminal block.

National Instruments is not liable for any damages or injuries resulting from incorrect

signal connections.

Clean the module and accessories by brushing off light dust with a soft non-metallic brush.

Remove other contaminants with a stiff non-metallic brush. The unit must be completely

dry and free from contaminants before returning it to service.

Installation

The TB-2709 connects directly to the front panel of the PXI DAQ device,

as shown in Figure 2.

Figure 2. Connecting the TB-2709 to an S Series Device

1 Terminal Block Mounting Screws

2 PXI Chassis

3 68-Pin I/O Connector on PXI Device

NI TB-2709 Installation Guide 4 ni.com

To connect the terminal block to the PXI module I/O connector, refer to

Figure 2 as you complete the following steps:

1. Install the PXI module into the chassis and tighten the two module

screws. You must install the PXI device before connecting the

TB-2709. Refer to the DAQ Getting Started Guide for instructions on

installing your PXI device.

2. Guide the terminal block onto the PXI module connector.

Caution Do not force the terminal block when inserting it into or removing it from the PXI

module I/O connector.

3. Tighten the two terminal block mounting screws.

Signal Descriptions

Figure 3 shows the front panel of the TB-2709, and Figure 4 shows the

TB-2709 block diagram. Refer to Table 1 for a brief description of each

signal available on the TB-2709.

Figure 3. NI TB-2709 Front Panel

©National Instruments Corporation 5 NI TB-2709 Installation Guide

Figure 4. NI TB-2709 Block Diagram

For more detailed descriptions of these signals, refer to the S Series User

Manual.

Additional signal configuration information is available in Measurement &

Automation Explorer (MAX). To access this information in MAX, select

your device under Devices and Interfaces, and click the Device Routes

tab.

Measuring Floating Signals

You can use the TB-2709 to measure floating and ground-referenced

analog input signals. To measure floating signal sources, move the switch

located under the rubber-sealed door on the enclosure cover for the AI

channel you are using to the ON (floating source) switch position. In the

floating source switch position, the amplifier negative terminal connects to

ground through a 5 kΩresistor in parallel with a 0.1 μF capacitor. Table 2

shows the TB-2709 switch configuration options.

Table 1. TB-2709 Signal Descriptions

Signal Name Reference Direction Description

AI <0..7> AI GND Input Analog Input channels 0 through 7.

PFI 0/AI Start Trig D GND Input As an input, this pin is a programmable

function input (PFI).

Output As an output, this pin is the AI Start

Trigger signal.

AI <0..7> +

AI <0..7> –

Front Panel

SMB Connectors

DAQ Device

Signals

AI <0..7> GND

AI Start Trig

D GND

5 kΩ

0.1 μF

NI TB-2709 Installation Guide 6 ni.com

Measuring Ground-Referenced Signals

It is possible to set the switch on the TB-2709 to either the floating or

ground-referenced source position to measure ground-referenced signals.

However, for best results, use the OFF (ground-referenced source) switch

position to avoid ground loops. Refer to the S Series User Manual for more

information on measuring floating and ground-referenced signals.

Cabling Options

This section describes the cabling options for accessing digital signals on

the TB-2709.

A 14-pin connector on the bottom of the TB-2709 provides access to

digital I/O signals. Use the MFIT-Pigtail Cable Assembly (part number

194123-01) to access digital signals on the TB-2709. The MFIT-Pigtail

Cable Assembly features a 14-pin I/O connector on one end and pigtail

Table 2. Configuration Summary

TB-2709 Switch

Configuration

Signal Source Types for S Series Devices

Floating Source Ground-Referenced Source

Floating Source

Ground-

Referenced Source

–

Signal

Source TB-2709

DAQ Device

(Differential Input

Mode)

AI GND

–

Recommended

–

Signal

Source TB-2709

DAQ Device

(Differential Input

Mode)

AI GND

–

Not Recommended

–

Signal

Source TB-2709

Improper Configuration

DAQ Device

(Differential Input

Mode)

–

AI GND

–

Signal

Source TB-2709

DAQ Device

(Differential Input

Mode)

AI GND

–

Recommended

©National Instruments Corporation 7 NI TB-2709 Installation Guide

conductors on the other end. The pigtail conductors on the cable assembly

can be used to terminate digital signals to the connector(s) your application

requires. Figure 5 and Table 3 list the pin assignments and wiring

information necessary for connecting the TB-2709 to DIO signals.

Figure 5. 14-Pin Digital I/O Connector

Table 3. TB-2709 Wiring Information for 14-Pos MFIT-Pigtail

Cable Assembly (Part Number 194123-01)

Pin Number Wire Color Signal Name

1Black D GND

1Brown D GND

2Red P0.0

3Orange P0.1

4Yellow P0.2

5Green P0.3

6Blue CTR 0 OUT

7Violet D GND

7Gray D GND

8White P0.4

Pin 14

Pin 8

Pin 7

Pin 1

PFI 9

CTR 1 OUT

CHASSIS GND

P0.7

P0.6

P0.5

P0.4

GND

CTR 0 OUT

P0.3

P0.2

P0.1

P0.0

GND

NI TB-2709 Installation Guide 8 ni.com

Table 4 lists the National Instruments cables available for connecting the

TB-2709 to both analog and digital user signals.

Specifications

This section lists the specifications of the TB-2709. These specifications

are typical at 25 °C unless otherwise specified.

Input/Output

Refer to the documentation for your PXI-6123/6133 or PXI-6122/6132

S Series device to determine the input/output specifications for your

application.

Caution Do not apply an input voltage greater than 42 Vpk/60 VDC to the TB-2709. Input

voltages greater than 42 Vpk/60 VDC can damage the TB-2709 and any device connected

to it, including the host computer. Overvoltage can also cause an electric shock hazard for

the operator. National Instruments is not liable for damage or injury resulting from such

misuse.

9White/Black P0.5

10 White/Brown P0.6

11 White/Red P0.7

12 Drain Wire CHASSIS GND

13 White/Orange CTR 1 OUT

14 White/Yellow PFI 9

Table 4. TB-2709 Cabling Options

Cable Length Part Number

SMB-100, SMB Female to BNC

Female Coaxial, 50 Ω

0.6 m 763389-01

SMB110, SMB to BNC Male

Coaxial, 50 Ω

1 m 763405-01

14-Pos MFIT-Pigtail Cable

Assembly

1 m 194123-01

Table 3. TB-2709 Wiring Information for 14-Pos MFIT-Pigtail

Cable Assembly (Part Number 194123-01) (Continued)

Pin Number Wire Color Signal Name

©National Instruments Corporation 9 NI TB-2709 Installation Guide

Physical

Dimensions

Height.............................................. 10.7 ×8.6 ×2.0 cm

(4.2 ×3.4 ×0.8 in.)

Weight............................................. 144.6 g (5.1 oz)

I/O connectors

68-position SCSI-II type................. 1, female

SMB jacks....................................... 9

14-pin auxiliary connector .............. One, Molex 14-pin microfit

connector

Shock and Vibration

Operational shock .................................. 30 g peak, half-sine, 11 ms pulse

(Tested in accordance with

IEC-60068-2-27. Test profile

developed in accordance with

MIL-PRF-28800F.)

Random vibration

Operating ........................................ 5 to 500 Hz, 0.3 grms

Nonoperating .................................. 5 to 500 Hz, 2.4 grms

(Tested in accordance with

IEC-60068-2-64. Nonoperating

test profile exceeds the

requirements of

MIL-PRF-28800F, Class 3.)

Environment

The NI TB-2709 is intended for indoor use only.

Operating temperature............................ 0 to 55 °C

Storage temperature ............................... –20 to 70 °C

Relative humidity................................... 10 to 90% noncondensing

Pollution Degree .................................... 2

NI TB-2709 Installation Guide 10 ni.com

Safety

This product is designed to meet the requirements of the following

standards of safety for electrical equipment for measurement, control,

and laboratory use:

• IEC 61010-1, EN 61010-1

• UL 61010-1, CSA 61010-1

Note For UL and other safety certifications, refer to the product label, or visit ni.com/

certification, search by model number or product line, and click the appropriate link

in the Certification column.

Waste Electrical and Electronic Equipment (WEEE)

EU Customers At the end of their life cycle, all products must be sent to a WEEE recycling

center. For more information about WEEE recycling centers and National Instruments

WEEE initiatives, visit ni.com/environment/weee.htm.

Where to Go for Support

The National Instruments Web site is your complete resource for technical

support. At ni.com/support you have access to everything from

troubleshooting and application development self-help resources to email

and phone assistance from NI Application Engineers.

A Declaration of Conformity (DoC) is our claim of compliance with the

Council of the European Communities using the manufacturer’s

declaration of conformity. This system affords the user protection for

electronic compatibility (EMC) and product safety. You can obtain the DoC

for your product by visiting ni.com/certification. If your product

supports calibration, you can obtain the calibration certificate for your

product at ni.com/calibration.

National Instruments corporate headquarters is located at

11500 North Mopac Expressway, Austin, Texas, 78759-3504.

National Instruments also has offices located around the world to help

address your support needs. For telephone support in the United States,

create your service request at ni.com/support and follow the calling

instructions or dial 512 795 8248. For telephone support outside the United

States, contact your local branch office:

Australia 1800 300 800, Austria 43 662 457990-0,

Belgium 32 (0) 2 757 0020, Brazil 55 11 3262 3599,

Canada 800 433 3488, China 86 21 5050 9800,

Czech Republic 420 224 235 774, Denmark 45 45 76 26 00,

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