[Nut-upsuser] Q about UPS features / NUT support

[Laurent GUERBY]

Hi,

I have several Linux machines at home and I'm considering buying a UPS
for them. I see that many models are supported by NUT (great!) but since
I'm new to the UPS world I have some questions about UPS features and
NUT support of them I couldn't find an answer for:

1/ are there UPS models who report/meter power usage through USB? per
UPS socket or globally?
2/ are there UPS models who allow turning off/on power on a socket
through USB? (so allow remote hard reboot)

If there exist UPS models with these features, are they supported by
NUT?

The closest thing I found to answering these questions is the
file nut-2.2.1/docs/new-names.txt which has entries that
look interesting:

 ups.realpower  
 battery.voltage
 battery.capacity
 battery.current
 output.voltage 
 output.current 
=> it's unclear wether when not running on battery you get instant power
usage information as I want for 1/, and these look global not per
socket. Also which models do support those reporting?

 outlet.n.switchable  
 outlet.n.switch      
 outlet.n.delay.shutdown  
 outlet.n.delay.shutdown  
=> seems to be what I want for 2/, but I couldn't find which UPS model
do "support" this control and which don't.

I also found:

http://www.vamos-wentworth.org/upsinfo.html

The is a "powerdown" column but I'm not sure it's related to the above
and there is also "Switchable outlets" but there is only one model where
the number of switchable outlets is mentionned ("Pulsar ESV 8"), does
that mean it's zero for all other models?

Thanks in advance and sorry if I missed obvious documents in my
searches,

Laurent