Appendix A Specifications for SCXI-1127
SCXI-1127/1128 User Manual A-2 ni.com
Channel to channel crosstalk..................50 Ω termination
10 kHz .............................................≤ –70 dB
100 kHz ...........................................≤ –57.79 dB
1 MHz..............................................≤ –53.31 dB
5 MHz..............................................≤ –41.47 dB
11 MHz............................................≤ –27.23 dB
Dynamic Characteristics
Maximum operating speed .....................100 cycles/s
Relay operate time (at 20 °C).................3 ms typical, 5 ms max
Relay release time (at 20 °C) .................1.5 ms typical, 5 ms max
Expected life
Mechanical (at 180 cpm).................5 × 107 operations
Electrical at maximum load.............2 × 105 operations
Operating life variations versus switching conditions (differential or
single-ended mode operation) at 20 cpm
Trigger Characteristics
Scanner advanced pulsewidth.................1.1 µs
External trigger input pulsewidth ...........500 ns (min)
Stability
Recommended warm-up time.................5 minutes
Vol t s Amps Operational Life Cycles
30 VDC 1 A 200,000
250 Vrms 200 mA 50,000
250 VDC 200 mA 50,000
250 Vrms 250 µA100,000
250 VDC 250 µA100,000