National Instruments NI TB-2631B User manual

INSTALLATION INSTRUCTIONS
NI TB-2631B
Terminal Block for the NI PXI-2530B
This guide describes how to install and connect signals to the National Instruments TB-2631B terminal
block to configure your NI PXI-2530B switch module as one of the following:
•1-wire4×32 matrix
•2-wire4×16 matrix
This terminal block is a shielded accessory.
Contents
Introduction.......................................................................................................................................... 1
1. Unpack the Terminal Block ............................................................................................................. 1
2. Verify the Components.................................................................................................................... 2
3. Connect Signals ............................................................................................................................... 2
4. Install the Terminal Block ............................................................................................................... 7
Compliance and Certifications............................................................................................................. 7
Introduction
The NI TB-2631B terminal block installs in front of the NI PXI-2530B switch module. The
NI TB-2631B has screw terminals to connect signals to the switch. Screw terminals for the trigger
input and trigger output signals are also available. The NI TB-2631B is designed for use with the
NI PXI-2530B and is not compatible with the NI PXI-2530.
1. Unpack the Terminal Block
To avoid damage when you handle the terminal block, take the following precautions:
Caution Never touch the exposed pins of connectors.
• Ground yourself using a grounding strap or by touching a grounded object.
• Touch the antistatic package to a metal part of the chassis before you remove the terminal block
from the package.
Remove the terminal block from the package and inspect the terminal block for loose components or
any sign of damage. Notify NI if the terminal block appears damaged in any way. Do not install a
damaged terminal block on a switch module.
Store the terminal block in the antistatic package when not in use.
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NI TB-2631B Installation Instructions 2 ni.com
2. Verify the Components
Make sure you have the following:
❑NI TB-2631B terminal block
❑PXI chassis
❑NI PXI-2530B switch module
❑1/8 inch flathead screwdriver
3. Connect Signals
Caution To ensure the specified EMC performance, operate this product only with shielded cables
and accessories.
To connect signals to the terminal block, complete the following steps:
1. Remove the terminal block top cover screws 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. Prepare the signal cable by stripping the insulation no more than 3/16 of an inch.
5. Pull the signal cables through the strain-relief opening shown in Figure 1.
6. Connect the cables to the terminals by inserting the stripped end of the cable into the terminal.
Secure the connection by tightening the screw for each terminal. When connecting the signals, refer
to the connection diagram in Figure 2.
Note When connecting signals to the NI TB-2631B, refer to Tables 1 and 2 to determine where to
connect signals for the chosen topology.
7. Connect the shield of the signal cable to the safety ground lug shown in Figure 1.
8. Tighten the two screws on the strain-relief bar, securing the signal cables.
9. Replace the terminal block top cover to the terminal block.
10. Secure the terminal block top cover with the top cover screws.

©National Instruments Corporation 3 NI TB-2631B Installation Instructions
Figure 1. NI TB-2631B Terminal Block
1 Signal cables
2 Strain-relief opening
3 Strain-relief bar
4 Strain-relief screw
5 Chassis screws
6 Rear connector
7 Terminal block top cover
8 Top cover screws
9 Safety ground lug
10 Screw terminals
8
8
5
6
10
1 4
9
23
NI TB-2631B
4 X 32 Matrix
Terminal Block
7

NI TB-2631B Installation Instructions 4 ni.com
Figure 2. NI TB-2631B Terminal Reference
NI TB-2631B Screw Terminal Reference
NATIONAL
INSTRUMENTS
GND
TRIGOUT
GND
TRIGIN
+5V MAX
60 VDC MAX
0.4 A MAX
01234567
01234567
16 17 1819 20 21 22 23
8910 11 12 1314 15
24 25 26 27 2829 3031
160 POSITION CONNECTOR
1-WIRE
REFERENCE
23
10
COLUMNS
ROWS

©National Instruments Corporation 5 NI TB-2631B Installation Instructions
Table 1. 1-Wire 4×32 Topology Terminal Mapping
Software Name Hardware Name Software Name Hardware Name
r0 ROW 0 c14 COLUMN 14
r1 ROW 2 c15 COLUMN 15
r2 ROW 4 c16 COLUMN 16
r3 ROW 6 c17 COLUMN 17
c0 COLUMN 0 c18 COLUMN 18
c1 COLUMN 1 c19 COLUMN 19
c2 COLUMN 2 c20 COLUMN 20
c3 COLUMN 3 c21 COLUMN 21
c4 COLUMN 4 c22 COLUMN 22
c5 COLUMN 5 c23 COLUMN 23
c6 COLUMN 6 c24 COLUMN 24
c7 COLUMN 7 c25 COLUMN 25
c8 COLUMN 8 c26 COLUMN 26
c9 COLUMN 9 c27 COLUMN 27
c10 COLUMN 10 c28 COLUMN 28
c11 COLUMN 11 c29 COLUMN 29
c12 COLUMN 12 c30 COLUMN 30
c13 COLUMN 13 c31 COLUMN 31

NI TB-2631B Installation Instructions 6 ni.com
Table 2. 2-Wire 4×16 Topology Terminal Mapping
Software
Name
Hardware Name Software
Name
Hardware Name
+ – + –
r0 ROW 0 ROW 1 c6 COLUMN 6 COLUMN 22
r1 ROW 2 ROW 3 c7 COLUMN 7 COLUMN 23
r2 ROW 4 ROW 5 c8 COLUMN 8 COLUMN 24
r3 ROW 6 ROW 7 c9 COLUMN 9 COLUMN 25
c0 COLUMN 0 COLUMN 16 c10 COLUMN 10 COLUMN 26
c1 COLUMN 1 COLUMN 17 c11 COLUMN 11 COLUMN 27
c2 COLUMN 2 COLUMN 18 c12 COLUMN 12 COLUMN 28
c3 COLUMN 3 COLUMN 19 c13 COLUMN 13 COLUMN 29
c4 COLUMN 4 COLUMN 20 c14 COLUMN 14 COLUMN 30
c5 COLUMN 5 COLUMN 21 c15 COLUMN 15 COLUMN 31

©National Instruments Corporation 7 NI TB-2631B Installation Instructions
4. Install the Terminal Block
To connect the NI TB-2631B terminal block to the NI PXI-2530B front panel, complete the following
steps (the NI PXI-2530B should already be installed in a PXI chassis):
1. Plug the NI TB-2631B on to the front connector of the NI PXI-2530B as shown in Figure 3.
2. Tighten the top and bottom chassis screws on the back of the terminal block rear panel to hold it
securely in place.
Figure 3. Installing the NI TB-2631B Terminal Block
Compliance and Certifications
Safety
This product meets 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 the Online Product
Certification section.
1 Chassis screw 2 Front connector 3 NI PXI-2530B 4 NI TB-2631B
1
2
3
4
NI PXI-2531B
128-Channel
Reed Relay
Multiplexer / Matrix
NITB-2631B
4 X 32 Matrix
Terminal Block

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Electromagnetic Compatibility
This product meets the requirements of the following EMC standards for electrical equipment for
measurement, control, and laboratory use:
• EN 61326-1 (IEC 61326-1): Class A emissions; Basic immunity
• EN 55011 (CISPR 11): Group 1, Class A emissions
• AS/NZS CISPR 11: Group 1, Class A emissions
• FCC 47 CFR Part 15B: Class A emissions
• ICES-001: Class A emissions
Note For EMC declarations and certifications, refer to the Online Product Certification section.
CE Compliance
This product meets the essential requirements of applicable European Directives as follows:
• 2006/95/EC; Low-Voltage Directive (safety)
• 2004/108/EC; Electromagnetic Compatibility Directive (EMC)
Online Product Certification
To obtain product certifications for this product, visit ni.com/certification, search by model
number or product line, and click the appropriate link in the Certification column.
Environmental Management
NI is committed to designing and manufacturing products in an environmentally responsible manner.
NI recognizes that eliminating certain hazardous substances from our products is beneficial to the
environment and to NI customers.
For additional environmental information, refer to the NI and the Environment Web page at
ni.com/environment. This page contains the environmental regulations and directives with which
NI complies, as well as other environmental information not included in this document.
Waste Electrical and Electronic Equipment (WEEE)
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center. For more information about WEEE recycling centers, National Instruments WEEE initiatives,
and compliance with WEEE Directive 2002/96/EC on Waste Electrical and Electronic Equipment,
visit ni.com/environment/weee.
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