National Instruments NI 2590/2591 - Manual (Page 24)

© National Instruments Corporation A-1 NI 2590/2591 User Manual
A
Specifications
This appendix lists the specifications for the NI 2590/2591 switch module.
These specifications are typical at 25
°C unless otherwise noted.
NI 2590
Input Characteristics
Number of relays.................................... 3
Common-mode voltage
Channel to earth .............................. 24 VDC
Maximum switching voltage
AC ................................................... 24 V
rms
DC ................................................... 24 VDC
Maximum switching capacity per channel
DC ................................................... 1 A at 24 V
AC ................................................... 1 A
rms
at 24 V
Maximum switching
power per channel .................................. 24 W
Contact on resistance (initial) ................ 100 m
Ω max
Contact material ..................................... Gold-clad silver
RF Performance Characteristics
Characteristic impedance (Z
0
)................ 50
Ω
Insertion loss at:
< 100 MHz ...................................... < 0.4 dB
< 500 MHz ...................................... < 0.9 dB
< 1.3 GHz........................................ < 1.5 dB