On Sep 1, 2011, at 2:11 PM, Stuart D. Gathman wrote:
If you have a full network link, you wouldn't need a USB hookup.
Perhaps
that is what you meant by "NUT protocol"? You meant the protocol
between
the nut driver and the UPS.
I was originally referring to the TCP protocol between the NUT master
and the slaves (which would still require the master to be connected
to the USB monitoring port), but you're right, it could be pushed back
even further. (In my experience, the monitoring connection between the
UPS and master has always been the easy part - more difficult is to
find out which UPS is powering a given slave.)
If manufacturers were to standardize on an UPS monitoring protocol,
though, I suspect it might be easier to do convince them to do
something like SNMP's UPS MIB - again leaning on something like DNS-SD
for discovery.
I think the networking layer would be easier than multiple USB
connections on an UPS (assuming integrated USB/power cables).
Manufacturers seem to have a hard time supporting both USB and serial
at once, let alone multiple USB device-side connections.
_______________________________________________
Nut-upsdev mailing list
[email protected]
http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/nut-upsdev
