Getting Started with the NI PCIe-8255R
10
ni.com
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 Interface
Number of ports .....................................................2
Speed......................................................................100, 200, 400, or 800 Mbps
PCI Express Interface
PCI Express compliance ........................................Version 1.0a
Native link width....................................................x1
Up-plugging link width availability.......................x4, x8, x16
Power Requirements
IEEE 1394 bus power
1
...........................................18 W, maximum (shared by both ports)
Isolated supply
2
......................................................5 VDC to 30 VDC
Camera interface
3
...................................................IEEE 1394b, compatible with IEEE 1394a cameras
Physical Characteristics
Dimensions ............................................................11.2 cm
×
16.8 cm (4.4 in.
×
6.6 in.)
Weight ....................................................................130 g (4.5 oz)
Environment
The NI 8255R is intended for indoor use only.
Operating temperature ........................................... 0 °C to 55 °C
Storage temperature ...............................................–20 °C to 70 °C
Relative humidity...................................................5% to 90%, noncondensing
Pollution Degree ....................................................2
Caution
Do
not
use the NI 8255R for connection to signals within Measurement Categories II, III,
or IV.
Measurement Category ..........................................I
Approved at altitudes up to 2,000 m.
1
The bus power specification assumes that power is provided to the NI 8255R device from the host computer power supply
using the ATX power connector. If power is not supplied through the ATX power connector, camera power is supplied by the
PCIe bus and should be limited to 3 W, shared by both ports.
2
Do
not
draw more than 100 mA from 30 V isolated outputs. Do
not
draw more than 50 mA from 5 V isolated outputs.
3
To connect an IEEE 1394a camera to the NI 8255R, you will need a 6-pin to 9-pin cable or a 6-pin to 9-pin adapter.
