© National Instruments Corporation A-1 SCXI-1163 User Manual
Appendix ASpecifications

This appendix lists the specifications for the SCXI-1163. These are typical at 25° C and 50%
humidity unless otherwise stated. The operating temperature range is 0° to 50° C.

Digital Outputs

Power requirements (per port)
Supply voltage +5 V ± 0.5 V
+7 V absolute maximum
Supply current 60 mA/port typical
80 mA/port maximum
Outputs Open-collector digital outputs with 4.7 kΩ pullups
Logic low output voltage
(Iout = 12 mA) 0.4 V typical
0.6 V maximum
Output current (outputs low) 15 mA maximum
Isolation Port to port and port to ground
Breakdown 1,900 Vrms maximum
Working 450 Vrms maximum
Maximum speed
Propagation delay (parallel mode) 100 nsec
Rise time1 (into 100 pF) 1 µsec
Serial data rate
Measured using NI-DAQ software
on a 486-50 computer 700 writes/sec
Measured using NI-DAQ software
on a 386-33 computer 350 writes/sec
Common-mode rejection 500 V/µsec typical
100 V/µsec minimum

Physical

Dimensions 1.2 by 6.8 by 8.0 in.
Connectors 50-pin male ribbon-cable rear connector
48-pin DIN C male front connector
(48-screw terminal adapter available)
1You can add pullup resistors to obtain faster rise times. Be aware, however, that adding pullup resistors
accordingly increases the current that the output uses.