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INSTALLATION INSTRUCTIONS
NI TB-2633
4 × 64 1-Wire Terminal Block for the NI PXI-2533
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This document describes how to install and connect signals to the
National Instruments TB-2633 terminal block. Refer to the NI Switches
Getting Started Guide to determine when to install the NI TB-2633.
Introduction
The NI TB-2633 terminal block installs in front of the NI PXI-2533 switch
module and has screw terminals that provide access to the rows and
columns of the matrix.
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 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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2. Verify the Components
Make sure you have the following:
❑ NI TB-2633 terminal block
❑ PXI chassis
❑ NI PXI-2533 switch module
❑ 1/8 in. flathead screwdriver
3. Connect Signals
To connect signals to the terminal block, complete the following steps
while referring to Figure 1.
1. Loosen the terminal block top 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 signal wires through the strain-relief opening shown in
Figure 1.
5. Connect the safety earth ground to the safety ground lug.
6. Connect the wires to the terminals by inserting the stripped end of the
wire into the terminal. Secure the wire by tightening the screw for each
terminal. No bare wire should extend past the screw terminal. Exposed
wire increases the risk of a short-circuit and can result in a failure.
7. Remove the slack in the terminal block wiring by pulling the wires
through the strain-relief bar.
8. Tighten the two screws on the strain-relief bar until the signal wires are
secured.
9. Replace the terminal block top cover.
10. Secure the terminal block top cover with the top cover screw.
NI TB-2633 Installation Instructions 2 ni.com
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8
7
6
10
1 Strain-Relief Bar
2 Strain-Relief Opening
3 Signal Wires
4 Strain-Relief Screws
5 Jackscrews
9
5
4
5
1
4
3
2
6 Safety Ground Lug
7 Terminal Block Top Cover
8 Top Cover Screw
9 Rear Connector
10 Screw Terminals
© National Instruments Corporation 3 NI TB-2633 Installation Instructions
Figure 1. NI TB-2633 Terminal Block
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NATIONAL
INSTRUMENTS
NI TB-2633 Te r m i n al Reference Guide
C26
C27
C28
C29
C30
C31
R0
R1
R2
R3
C37
C36
C35
C34
C33
C32
C8
C9
C10
C11
C12
C13
C14
C15
C45
C44
C43
C42
C41
C40
C39
C38
C0
C1
C2
C3
C4
C5
C6
C7
C53
C52
C51
C50
C49
C48
C47
C46
C16
C17
C18
C19
C20
C21
C22
C23
C24
C25
C63
C62
C61
C60
C59
C58
C57
C56
C55
C54
68 POSITION CONNECTOR
NI TB-2633 Installation Instructions 4 ni.com
Figure 2. NI TB-2633 Terminal Reference
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4. Install the Terminal Block
To connect the NI TB-2633 terminal block to the NI PXI-2533 front panel,
complete the following steps while referring to Figure 3.
1. Connect the NI PXI-2533 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.
2
1
3
1 Jackscrews 2 Front Connector 3 NI PXI-2533 4 NI TB-2633
© National Instruments Corporation 5 NI TB-2633 Installation Instructions
1
4
Figure 3. Installing the NI TB-2633 Terminal Block
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Compliance and Certifications
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
in the Certification column.
Electromagnetic Compatibility
, search by model number or product line, and click the appropriate link
This product is designed to meet the requirements of the following
standards of EMC for electrical equipment for measurement, control,
and laboratory use:
Note For EMC compliance, operate this device with shielded cabling.
CE Compliance
Note Refer to the Declaration of Conformity (DoC) for this product for any additional
regulatory compliance information. To obtain the DoC for this product, visit
certification
in the Certification column.
• EN 61326 EMC requirements; Minimum Immunity
• EN 55011 Emissions; Group 1, Class A
• CE, C-Tick, ICES, and FCC Part 15 Emissions; Class A
This product meets the essential requirements of applicable European
Directives, as amended for CE marking, as follows:
•
2006/95/EC; Low-Voltage Directive (safety)
• 2004/108/EC; Electromagnetic Compatibility Directive (EMC)
ni.com/
, search by model number or product line, and click the appropriate link
NI TB-2633 Installation Instructions 6 ni.com
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Environmental Management
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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 additional environmental information, refer to the NI and the
Environment Web page at
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)
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.
ni.com/environment. This page contains the
RoHS
National Instruments
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National Instruments
(For information about China RoHS compliance, go to
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ni.com/environment/rohs_china
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© National Instruments Corporation 7 NI TB-2633 Installation Instructions
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374932B Feb08
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