Input Characteristics - NI SCXI-1127 User Manual

Specifications

Input Characteristics

Transfer Characteristics
© National Instruments Corporation
This appendix lists the specifications for the SCXI-1127 modules. These
specifications are typical at 25° C unless otherwise noted.
Number of relays available
as channels ............................................. 32
Common-mode voltage
Channel to channel.......................... 250 V
Channel to earth .............................. 250 V
Maximum allowed voltage—differential mode or single-ended
AC ................................................... 250 V
DC ................................................... 250 VDC
Maximum switching capacity—differential mode or single-ended
DC ................................................... 1 A at 30 VDC
AC ................................................... 200 mA at 250 V
Maximum switching power per
differential channel or single ended ....... 60 VA, 30 W
Contact on resistance (initial) ................ 100 mΩ
Contact material ..................................... Gold-clad silver alloy
Thermal EMF (differential) ................... <3 µV
Maximum frequency bandwidth 50 Ω termination
Worst-case channel ......................... 10 MHz
Channel to channel crosstalk.................. 50 Ω termination
1 MHz ............................................. <50 dB
0.5 A at 125 V
A-1
A
or DC
rms
or DC
rms
rms
,
rms
rms
SCXI-1127 User Manual