High-Density Multiconfiguration Matrix Switch Modules
NI PXI-2531, NI PXIe-2531, NI PXI-2532, NI PXIe-2532
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512-crosspoint matrix in a single
3U PXI slot
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4x128 (1-wire), 8x64 (1-wire),
4x64 (2-wire), and 8x32 (2-wire)
matrix configurations
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Switch capacity
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NI 2531: Up to 60 VDC/30 VAC, 0.5 A
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NI 2532: Up to 100 VDC/100 VAC, 0.5 A
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2,000 cycles/s
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32,000-step scan list for
deterministic scanning
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Fully software programmable
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Onboard relay count tracking
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Multiple-module synchronization
with hardware triggers
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Sixteen 2x16 matrix banks for
custom matrix configurations
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Available in both PXI and PXI Express
versions for optimal slot placement
Operating Systems
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Windows XP/2000/NT
Recommended Software
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LabVIEW
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LabWindows
™
/CVI
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Measurement Studio
for Visual C++
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NI Switch Executive
Other Compatible Software
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Visual Basic
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ANSI C/C++
Driver Software (included)
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NI-SWITCH
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NI-DAQmx
Compliance
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UL (NI 2532 only)
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CE
Module
NI 2531
NI 2532
Maximum Voltage
60 VDC, 30 VAC
100 VDC, 100 VAC
Maximum Current
0.5 A per channel (10 W max)
0.5 A per channel (10 W max)
Module Connector
2x 150 pos, Samtec ERM8 series (optimized for ruggedness)
2x 160 pos, Samtec BTE-EM (optimized for high voltage)
Terminal Block Connector
2x female VHDCI (with optional screw terminal breakout)
Standard 0.050 in. pitch headers to ribbon cables
(with optional screw terminal breakout)
Overview
The NI PXI-2531, PXIe-2531, PXI-2532, and PXIe-2532 are 512-crosspoint,
high-speed matrix switch modules. With the ability to create up to a 4x2176 or
8x1088 one-wire matrix in a single PXI chassis and even larger configurations
with multichassis solutions, an NI 2531/2 is ideal for high-channel-count
automated test configurations. Featuring compact reed relays with switching
speeds up to 2,000 cycles/s and the ability to synchronize with instruments,
these modules provide maximum throughput in a test system for signals up to
100 VDC/100 VAC or 0.5 A.
modules are built with sixteen 2x16 matrices, you can also create matrix sizes
outside the standard terminal block configurations. Other one-wire configurations
include a 16x32 matrix or four independent 4x32 matrices. In a two-wire
configuration, you can build a dual 4x32 or 16x16 matrix. Contact NI for more
information on creating custom configurations.
Relay Count Tracking
An NI 2531/2 counts relay closures on each of its 512 relays. Relay counts are
incremented each time a relay is actuated. You can programmatically retrieve
the counts, which are stored on board the module, and use them for predictive
maintenance to reduce unexpected system downtime.
Matrix Operation
The NI 2531/2 modules are general-purpose matrices used to route referenced
or differential signals. Through software, you can control the modules to connect
any row to any column. One of the key advantages of these matrices is you can
adapt them to your switching needs. You can configure them in many different
matrix configurations by using NI terminal blocks listed. For example, you can
create a 4x128 one-wire matrix by using the TB-2640 terminal block with an NI
2531/2 module. You can easily transform the same module into an 8x64
one-wire matrix by using a TB-2641 terminal block. Because the NI 2531/2
Automatic Scanning
These modules maximize throughput in automated test applications by the
use of scanning. Scanning improves throughput by downloading a list of up to
32,000 connections to the switch and cycling through the list using an event
(trigger) without any interruption from the host processor. You can most
efficiently implement scanning by mating an NI 2531/2 with an instrument
such as the NI PXI-4070 6�½-digit FlexDMM, which issues a trigger after
each measurement.
NI [ NATIONAL INSTRUMENTS CORPORATION ]
