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INSTALLATION INSTRUCTIONS
NI TB-2640
4 × 128 1-Wire Matrix Terminal Block for the NI PXI-2532
Introduction
Note
Refer to the
assemblies.
Connecting Ribbon Cables
The NI TB-2640 terminal block configures the NI PXI-2532 as a 4 × 128
1-wire matrix. The NI TB-2640 has ribbon cable headers to connect signals
to the switch, and it provides optional isolation resistors to protect the reed
relays from capacitive loads.
Refer to the NI Switches Getting Started Guide to determine when to install
the NI TB-2640.
Make sure you have the following:
•
NI TB-2640 terminal block
•
1/8 in. flathead and #1 Phillips screwdrivers
•
Four 2 mm jumpers
•
Four 34 conductor, 28 AWG, .050 in. pitch ribbon cable assemblies
(not included)
•
One 16 conductor, 28 AWG, .050 in. pitch ribbon cable assembly
(not included)
Accessories
section for information about ordering the appropriate cable
To connect ribbon cables to the terminal block, refer to Figures 1 and 2
while completing the following steps:
1.
Remove the top cover screw.
2.
Gently remove the top cover from the terminal block.
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Summary of Contents for National Instruments TB-2640
- Page 1 4 × 128 1-Wire Matrix Terminal Block for the NI PXI-2532 Introduction The NI TB-2640 terminal block configures the NI PXI-2532 as a 4 × 128 1-wire matrix. The NI TB-2640 has ribbon cable headers to connect signals to the switch, and it provides optional isolation resistors to protect the reed relays from capacitive loads.
- Page 2 2 Top Cover 8 Module Interface Board 3 Strain-relief Screws 9 Column Headers 4 Strain-relief Bar 10 Row Headers 5 Column Connection Board Screws 11 Housing 6 Lower Column Connection Board Figure 1. NI TB-2640 Terminal Block NI TB-2640 Installation Instructions ni.com...
- Page 3 0 (Pin 1) LOWER COLUMN UPPER COLUMN CONNECTION BOARD CONNECTION BOARD COLUMNS COLUMNS Figure 2. NI TB-2640 Terminal Block Signal Connections Accessories Table 1. Accessories for the NI TB-2640 Accessory Manufacturer Part Number NI SCB-264X screw terminal block National Instruments...
- Page 4 100 kHz ........<–55 dB 1 MHz........<–35 dB National Instruments, NI, ni.com, and LabVIEW are trademarks of National Instruments Corporation. Refer to the Terms of Use section on ni.com/legal for more information about National Instruments trademarks. Other product and company names mentioned herein are trademarks or trade names of their respective companies.
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