National Instruments NI PXI-2527 Specifications

NI PXI-2527 Specifications
32 × 1 Relay Multiplexer
This document lists specifications for the NI PXI-2527
32 × 1 multiplexer relay module. All specifications are subject
to change without notice. Visit
current specifications.
Topologies ...................................... 1-wire 64 × 1 multiplexer,
Refer to the NI Switches Help for detailed topology and
pinout information.
Input Characteristics
All input characteristics are DC, AC
unless otherwise specified.
Maximum switching voltage
Channel-to-channel .................... 300 V
Channel-to-ground...................... 300 V, CAT I
Caution This module is rated for Measurement
Category I and is intended to carry signal voltages
no greater than 300 V. This module can withstand up
to 1,500 V impulse voltage. Do not use this module
for connections to signals or for measurements
within Measurement Categories II, III, or IV.
Caution Do not connect to MAINs supply circuits
(e.g., wall outlets) of 115 or 230 VAC. Refer to the
Read Me First: Safety and Radio-Frequency
Interference document for more information about
Measurement Categories.
for the most
ni.com/manuals
1-wire dual 32 × 1
multiplexer,
2-wire 32 × 1
multiplexer,
2-wire dual 16 × 1
multiplexer,
4-wire 16 × 1 multiplexer
, or a combination
rms
Caution When hazardous voltages
(>42.4 V /60 VDC) are present on any relay
pk
terminal, safety low-voltage (≤42.4 V
cannot be connected to any other relay terminal.
Caution The maximum switching power is limited
by the maximum switching current, the maximum
voltage, and must not exceed 60 W, 62.5 VA.
Maximum switching power (per channel)
AC systems .................................60 W, 62.5 VA
DC systems .................................Refer to Figure 1
2.50
2.00
1.50
1.00
0.50
0.00
0 50 100 150 200 250 300 350
Figure 1. Maximum Switching Power for DC Loads (per channel)
Maximum total current....................2 A
(switching or carry)
DC path resistance
Initial...........................................<1 Ω
End-of-life...................................≥2 Ω
DC path resistance typically remains low for the life of the
relay. At the end of relay life, the path resistance rapidly rises
above 1 Ω. Load ratings apply to relays used within the
specification before the end of relay life.
/60 VDC)
pk
(up to 60 Hz)
Voltage (V)