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373960D
Sep08
Specifications
This section lists additional specifications for the NI TB-2643 used with the
NI PXI-2532. All specifications are subject to change without notice. Visit
ni.com/manuals
for the most current specifications.
Input Characteristics
All input characteristics are DC, AC
pk
, or a combination unless otherwise
specified.
Maximum switching voltage
Channel-to-channel..........................100 V
Channel-to-ground...........................100 V, CAT I
Caution
This module is rated for Measurement Category I and intended to carry signal
voltages no greater than 100 V. This module can withstand up to 500 V impulse voltage.
Do
not
use this module for connections 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 hazardous voltages (>42.4 V
pk
/60 VDC) are present on any relay terminal, safety
low-voltage (<42.4 V
pk
/60 VDC) cannot be connected to any other relay terminal.
Maximum current (per channel) .............0.5 A
DC path resistance ..................................<1.5
Ω
Row and column protection
resistors (when used) .............................100
Ω
Bandwidth (–3 dB, 50
Ω
termination)
Typical
.............................................≥
11 MHz
Crosstalk (50
Ω
termination)
Channel-to-channel
10 kHz ......................................< – 75 dB
100 kHz ....................................< – 60 dB
1 MHz.......................................< – 40 dB
