Appendix A Specifications
PC-DIO-24/PnP User Manual A-2
©
National Instruments Corporation
Output Signals
Pin 49 (at 4.65 to 5.25 VDC).............. 1.0 A max
Power Requirement
+5 VDC (±10%)................................. 0.45 A typ, 1 A max
Physical
Dimensions........................................ 11.7 by 10.6 cm (4.6 by 4.2 in.)
I/O connector..................................... 50-pin male ribbon-cable
connector
Input high current
(Vin = 5 V, W1 set to pulldown) — 65 µA
Input logic low current
(Vin = 0 V, W1 set to pullup) —–65 µA
Input logic low current
(Vin = 0 V, W1 set to pulldown) —–11 µA
Level Min Max
Output logic high voltage
(Iol = –2.5 mA) 3.7 V 5.0 V
Output logic high voltage
(Ioh = –4 mA) 2.7 V 5.0 V
Output logic low voltage
(Iol = 2.5 mA) 0 V 0.4 V
Output logic low voltage
(Iol = 4 mA) 0 V 0.5 V
Level Min Max