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INSTALLATION INSTRUCTIONS

NI TB-2634

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32 2-Wire Terminal Block for the NI PXI-2529

This document describes how to install and connect signals to the 
National Instruments TB-2634 terminal block. Refer to the 

NI Switches 

Getting Started Guide

 to determine when to install the NI TB-2634.

Introduction 

The NI TB-2634 terminal block installs in front of the NI PXI-2529 switch 
module and has ribbon cable headers that provide access to the rows and 
columns of the matrix. Connections for the trigger input and trigger output 
signals also are available. 

Caution

This terminal block is rated for Measurement Category I and intended to carry 

signal voltages no greater than 150 V. This module can withstand up to 800 V impulse 
voltage. Do 

not

 use this module for connection to signals or for measurements within 

Categories II, III, or IV. Do 

not

 connect to MAINS supply circuits (for example, wall 

outlets) of 115 or 230 VAC. Refer to the 

Read Me First: Safety and Electromagnetic 

Compatibility 

document for more information on measurement categories.

When module terminals are hazardous voltage LIVE (> 42.4 Vpk/60 VDC), you must 
ensure that devices and circuits connected to the module are properly insulated from 
human contact.

Conventions

The following conventions are used in this document:

»

The 

»

 symbol leads you through nested menu items and dialog box options 

to a final action. The sequence 

File»Page Setup»Options

 directs you to 

pull down the 

File

 menu, select the 

Page Setup

 item, and select 

Options

 

from the last dialog box.

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Summary of Contents for NI TB-2634

Page 1: ...than 150 V This module can withstand up to 800 V impulse voltage Do not use this module for connection to signals or for measurements within Categories II III or IV Do not connect to MAINS supply circuits for example wall outlets of 115 or 230 VAC Refer to the Read Me First Safety and Electromagnetic Compatibility document for more information on measurement categories When module terminals are ha...

Page 2: ...the proper names of disk drives paths directories programs subprograms subroutines device names functions operations variables filenames and extensions 1 Unpack the Terminal Block The terminal block is shipped in an antistatic package to prevent electrostatic discharge ESD that can damage several components on the terminal block To avoid such damage when you handle the terminal block take the foll...

Page 3: ...p cover screw with a flathead screwdriver 2 Gently lift the terminal block top cover off the terminal block 3 Loosen the two screws on the strain relief bar leaving plenty of space for the signal cables 4 Pull the ribbon cables through the strain relief opening as shown in Figure 1 5 Connect the safety earth ground to the safety ground lug 6 Connect each ribbon cable socket to a ribbon cable heade...

Page 4: ...NI TB 2634 Terminal Block 1 Strain Relief Bar 2 Ribbon Cable not included 3 Strain Relief Opening 4 Strain Relief Screw 5 Jackscrew 6 Safety Ground Lug 7 Terminal Block Top Cover 8 Top Cover Screw 9 Rear Connector 10 Ribbon Cable Header 1 2 5 3 4 7 6 10 9 8 ...

Page 5: ...I TB 2634 Terminal Reference Guide TRIGOUT GND GND TRIGIN COLUMNS 16 31 17 18 19 20 21 22 23 24 25 26 27 28 29 30 0 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ROWS 0 1 2 3 0 1 2 3 NO CONNECT NO CONNECT NO CONNECT NO CONNECT NO CONNECT NO CONNECT NO CONNECT NO CONNECT USE SHIELDED CABLE ON TRIGGERS 100 POSITION CONNECTOR ...

Page 6: ...lowing steps while referring to Figure 3 1 Connect the NI PXI 2529 front connector to its mating connector on the terminal block 2 Tighten the top and bottom jackscrews on the terminal block to hold it securely in place Do not overtighten the screws Figure 3 Installing the NI TB 2634 Terminal Block 1 Jackscrew 2 Front Connector 3 NI PXI 2529 4 NI TB 2634 3 4 2 1 ...

Page 7: ... product label or visit ni com certification search by model number or product line and click the appropriate link in the Certification column Electromagnetic Compatibility This product is designed to meet the requirements of the following standards of EMC for electrical equipment for measurement control and laboratory use EN 61326 EMC requirements Minimum Immunity EN 55011 Emissions Group 1 Class...

Page 8: ...ication search by model number or product line and click the appropriate link in the Certification column Environmental Management National Instruments is committed to designing and manufacturing products in an environmentally responsible manner NI recognizes that eliminating certain hazardous substances from our products is beneficial not only to the environment but also to NI customers For addit...

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