ADLINK Technology PCIe-7432, Manual, Page: 11 / 32

Introduction 1
PCIe-7432
1 Introduction
ADLINK'S PCIe-7432 for PCIe bus provides 32CH isolated DI and
32CH isolated DO and robust 2,500V isolation protection, suitable
for most industrial applications.
All digital input channels are identical non-polar and opto-isolated.
All channels are isolated and suitable for collecting digital inputs in
noisy environments. Digital input channel 0 & 1 interrupt are sup-
ported.
Common input junction can be common ground or common
power, depending on the environment, such that digital input can
be either current source or current sink. When isolated digital out-
put is ON, sink current is through transistors, and when OFF, none
is.
The extra connection is utilized for the flywheel diode, forming a
current-release closed loop, whereby transistors are protected
from high reverse voltage generated by the inductance load when
output is switched from ON to OFF.
1.1 Features
X
PCI Express x1, Plug and Play
X
32CH isolated digital input & 32CH isolated digital output
X
Isolation Voltage 2500V RMS
X
Sink current up to 500mA@24V on single isolated output,
120mA@24V for all ON channels
X
Isolated input voltage up to 24V
X
Digital input channels 0 & 1 interrupt
1.2 Applications
X
Laboratory and industrial automation
X
Watchdog timer (WDT)
X
Event counter
X
Frequency counter and generator
X
Low level pulse generator
X
Time delay