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1.1.1 Robust Protection
The USB-4761 digital input
channels
feature a robust isolation protection
for industrial,
lab and machinery automation applications.
It durably
withstands voltage up to
2,500 VDC, preventing your host system from
any incidental
harms. If
connected to
an external input source
with surge
protection, the USB-4761 can
offer
up
to
a maximum of 2,000 VDC ESD
(Electrostatic Discharge) protection.
1.1.2 Wide Input Range
The
USB-4761
has a wide range
of
input voltage from 5
to
30 V
DC
, and
it
is
suitable for most industrial applications with 12
and 24 V
DC
input volt-
age.
1.1.3 Reset Protection for Industrial Applications
When the system has
undergone a hot
reset
(i.e. without turning off
the
system power), USB-4761
can either retain outputs values of
each
chan-
nel, or
return to its default
configuration
as open
status,
depending on its
onboard jumper setting. This function protects the system
from wrong
operations during unexpected system
resets.
1.1.4 Plug &
Play Function
USB-4761 is
a portable Plug-&-Play device that
fully complies with the
USB 1.1/2.0 specification. During module installation, all bus-related
configurations such as
base
I/O address
and interrupts are conveniently
taken care of
by the Plug-&-Play function.
You have
virtually
no need to
set any jumpers
or
DIP switches.
Note:
For detailed specifications of
USB-4761,
please
refer
to Appendix A,
Specifications.
3 Chapter 1