National-instruments Interface Device NI PCI-8254R Manuel d'utilisateur télécharger pdf (Page 12)

NI PCI-8254R Quick Start Guide 12 ni.com

Maximum pulse rate ...............................2 MHz

Optically Isolated Inputs and Outputs

Isolated (Current Sinking) Inputs

Number of channels................................13

Input voltage range .................................0 V to 30 V

Input ON voltage.............................3.5 V to 30 V

Input OFF voltage............................0 V to 2 V

Turn-on current.......................................7.1 mA, typical

14 mA, maximum

Maximum pulse rate ...............................100 kHz

Minimum pulse detected ........................10 μs

Reverse polarity protection.....................Yes, –30 V

Isolated (Current Sourcing) Outputs

Number of channels................................4

On-state voltage range............................5 V to 30 V, maximum

Maximum on-state voltage

drop from V.....................................1.2 V at 100 mA

Output current

5 V isopower....................................50 mA, maximum

24 V isopower..................................100 mA, maximum

30 V isopower..................................100 mA, maximum

Maximum pulse rate ...............................10 kHz (maximum load

resistance 100 kΩ)

Minimum pulse generated ......................100 μs

Reverse polarity protection.....................Yes

IEEE 1394

Number of ports......................................2

Speed ......................................................100, 200, or 400 Mbps

1 2 ... 7 8 9 10 11 12 13 14 15 16

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National-instruments Interface Device NI PCI-8254R Manuel d'utilisateur Page 12