If it's about "Ethernet vs. USB" queston I would always suggest
Ethernet. - With any kind of equipment in question!
Ethernet is simpy much better: you don't need device drivers, it works
with longer cables (over 10 times longer than USB), it's routable, you
can use it remotely (VPN), you can turn it wireless (WLAN) and because
there are no need for drivers it's much more platform / OS independent
than USB.
USB is good for devices which can draw their power from USB port, like
mices or keyboards. But it has many drawbacks: some USB devices won't
work with Windows Vista. Some USB devices has stupid drivers which need
to be installed for each USB port in the computer. I'm talking about the
issue when you install a driver and later plug it into different USB
port the system will ask you to isntall the driver again. Also, many USB
devices based on some kind of USB-Serial chip (like FTDI) may have
different COM-addresses for different USB ports and this leads to same
kind of issue: it works only with one USB port witout changing some
settings. In the worst case you must remember the corrent USB port for
each device.
With Ethernet it's not essential which port (or to which switch) you
plug in your device, as long the switch you are using is a part of your
local network (or there is VPN remote connection to your network).
But... of course this in only my opinion. :-)
I have used the Prologix (LAN version) with KE5FX GPIB toolkit. You can
use it for capturing plots from oscilloscopes, spectrum analyzers etc.
and write some kind of command scripts for the instruments. Maybe it's
not best possible software for Prologix but it it's free.
--
73s!
Esa
OH4KJU
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