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Triggers
Bus Interface
Power Requirement
© National Instruments Corporation
DMA modes ........................................... Scatter gather
Analog Trigger
Source
PCI-4451 ......................................... ACH<0..1>
PCI-4452 ......................................... ACH<0..3>
Level....................................................... ± full-scale
Slope....................................................... Positive or negative
Resolution .............................................. 16 bits
Hysteresis ............................................... Programmable
Digital Trigger
Compatibility ......................................... TTL
Response ................................................ Rising or falling edge
Pulse width ............................................. 10 ns min
Type ....................................................... PCI Master/Slave
Power (PCI-4451) .................................. +5 V, 1.7 A idle, 2.0 A active
Power (PCI-4452) .................................. +5 V, 2.2 A idle, 2.5 A active
(software selectable)
+12 V, 11 mA typical
(not including momentary relay
switching)
12 V, 40 mA typical
+3.3 V, unused
+12 V, 150 mA typical
(not including momentary relay
switching)
12 V, unused
+3.3 V, unused
A-9
Appendix A
Specifications
PCI-4451/4452 User Manual
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