Getting Started with the NI PCI-8254R
10
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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
µ
s
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 k
Ω
)
Minimum pulse generated .....................................100
µ
s
Reverse polarity protection ....................................Yes
IEEE 1394
Number of ports .....................................................2
Speed......................................................................100, 200, or 400 Mbps
Power Requirements
IEEE 1394 bus power
1
...........................................18 W, maximum (shared by both ports)
Isolated supply
2
......................................................5 to 30 VDC
Camera interface ....................................................IEEE 1394a
Physical Characteristics
Dimensions ............................................................10.7 cm
×
17.5 cm (4.2 in.
×
6.9 in.)
Weight ....................................................................114 g (4.0 oz)
1
The bus power specification assumes that power is provided to the NI 8254R from the host computer power supply via the
ATX power connector. If power is not supplied through this connector, camera power is supplied by the PCI bus and should
be limited to 5 W, shared by both ports.
2
Do
not
draw more than 500 mA combined from the V
iso
pins on the 44-pin D-SUB connector. Do
not
draw more than 100 mA
from 30 V isolated outputs. Do
not
draw more than 50 mA from 5 V isolated outputs.
Содержание NI VISION PCI-8254R
Страница 1: ...PCI 8254R...
