Omega Engineering USB-4761, Руководство пользователя, Страница: 8 / 39

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