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Chapter 1 Introduction
Thank you
for buying the USB-4750
data acquisition
mod- ule.
The
USB-4750 is
a powerful data acquisition (DAS) module for the
USB port.
It features a unique
circuit
design
and
complete functions for data
acquisition and control.
1.1 Hardware Features
USB-4750 features excellent measurement &
control functions:
•
32 isolated digital
input/output
channels
•
High-voltage
isolation up to
2,500 VDC on
all
channels
•
Dry/wet contact
support
•
Interrupt handling
capability
•
High-sink current
for
isolated
output channels (100mA max./Channel)
•
Digital output
value retained
after hot
system reset
•
Programmable Power-Up
States for output
channels
•
Wiring ternimals on module
Note:
You can install up
to
sixteen
USB-4750’s to a
system
because
of the restriction of device
BoardID
Note:
The power output
of
an USB port is 500 mA,
while
the
USB-4750 requires 350 mA
(Max.).
This means that if an USB hub is used,
it will
need
an external power supply
to support
more
than one
USB-4750 device.
Note:
For detailed specifications of
USB-4750,
please
refer
to Appendix A,
Specifications.
USB-4750 User Manual 2