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Chapter 1 Introduction
Thank you
for buying the USB-4761
data acquisition
module.
The
USB-
4761 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 Features
USB-4761
has the
most requested measurement
& control
functions:
•
8 relay output (Form
C)
and 8 isolated
digital input channels
•
LED indicators
to
show activated relays
•
High-voltage isolation
on
input channels (2,500 VDC)
•
High
ESD protection (2,000 VDC)
•
Wide input range (5 ~ 30 VDC)
•
Interrupt handling
capability
•
Bus-powered
•
Wiring terminal on Modules
Note:
You can install up
to
sixteen
USB-4761’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-4761 requires 400mA (Max.).
This
means that if an USB hub is used, it will need an
external power supply
to support
more
than one
USB-4761 device.
USB-4761 User Manual 2