©NationalInstruments Corporation E-1 SerialHardware and Software for Windows
E

Specifications

This appendix describes the characteristicsof the serial hardware, the
NI-Serials oftware,along with the recommended operating conditions.

PCI Serial Hardware

Two-PortBoards
Dimensions.............................................10.67 by 14.22 cm
(4.2 by 5.6 in.)
I/O connector..........................................DB-9
Power requirement (from PCI channel)
PCI-485/2
+5VDC ....................................350 mA typical
750 mA maximum
PCI-232/2
+5VDC ....................................50 mA typical
100 mA maximum
±12VDC ..................................20 mA typical
200 mA maximum
Isolated Two-PortBoards
Dimensions.............................................10.67 by 14.22 cm
(4.2 by5.6 in.)
I/O connector..........................................DB-9
Isolation voltage
From port to port.............................2000 Vrms/60s
Fromany port to host computer...... 2000 Vrms/60s