Specifications - National Instruments PCI-8254R Getting Started

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
Input low voltage (V
Input high voltage (V
Output low voltage (V
Output high voltage (V
TTL Inputs
Number of channels ...............................................2
Maximum pulse rate ..............................................2 MHz
Minimum pulse detected........................................500 ns
Power-on state........................................................Input (high-impedance) 61.9 kΩ pull-up to 5V
TTL Outputs
Number of channels ...............................................10
Output voltage range..............................................0 V to 5 V
Maximum pulse rate ..............................................2 MHz
© National Instruments Corporation
Level
)
IL
)
IH
), at 5 mA
OL
), at 5 mA
OH
9
Minimum
0 V
2.2 V
—
2.4 V
Getting Started with the NI PCI-8254R
Maximum
0.5 V
5 V
0.4 V
—