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National Instruments Corporation
9
Getting Started with the NI PCI-8254R
The NI 8254R ships with a 2-position power connector that plugs directly into the isolated outputs
power input connector on the NI 8254R. To wire power to the 2-position connector, complete the
following steps:
1.
Wire the voltage output of the isolated power supply to the isolated outputs power input, labeled
V
,
on the 2-position connector.
2.
Wire the common-mode signal (ground) output of the power supply to the isolated outputs
common-mode signal input, labeled
C
, on the 2-position connector.
Configuring the NI 8254R
After you have installed the NI 8254R and powered on your computer, Windows will recognize the
device and assign resources to it. Use Measurement & Automation Explorer (MAX), the National
Instruments configuration utility, to configure the IEEE 1394 camera connected to the NI 8254R for
acquisition. Refer to the
Measurement & Automation Explorer Help for NI-IMAQdx
for additional
information about configuring the NI 8254R.
Note
Before configuring the device in MAX, ensure that you installed the NI-IMAQdx driver
software.
Specifications
The following specifications apply to the NI IEEE 1394a interface device. These specifications are
typical at 25 °C, unless otherwise stated.
TTL Inputs and Outputs
Digital logic levels
TTL Inputs
Number of channels ...............................................2
Maximum pulse rate ..............................................2 MHz
Minimum pulse detected........................................500 ns
Power-on state........................................................Input (high-impedance) 61.9 k
Ω
pull-up to 5V
TTL Outputs
Number of channels ...............................................10
Output voltage range..............................................0 V to 5 V
Maximum pulse rate ..............................................2 MHz
Level
Minimum
Maximum
Input low voltage (V
IL
)
0 V
0.5 V
Input high voltage (V
IH
)
2.2 V
5 V
Output low voltage (V
OL
), at 5 mA
—
0.4 V
Output high voltage (V
OH
), at 5 mA
2.4 V
—
Summary of Contents for NI VISION PCI-8254R
Page 1: ...PCI 8254R...
