Calling NUT users in America (and other 110V countries)

Daniel O'Connor doconnor at
Mon Mar 16 17:31:17 PDT 2009

Does anyone have a 110V MGE Pulsar connected to NUT via RS232?

The reason I am asking is that we ship systems overseas (from Australia land 
of 230V) and typically have the customer purchase a UPS (or arrange for one to 
be delivered to the site) and I find that I can't communicate with them using 

All of the MGE UPSs we have shipped from Australia work fine, and the hardware 
and software is identical to 110V sites (Super micro C2SBA, FreeBSD 6.3).

I have talked to the NUT maintainers but they are primarily Linux oriented  
and haven't yet cranked up a FreeBSD box to have a look at it.

The symptoms are that it can talk to the UPS but there are frequent drops in 
communication (very annoying as it fills the logs with crap), yet 230V units 
work flawlessly.

I am not using USB because it was not reliable until very recently (and still 
reconnects alarmingly often..)

Daniel O'Connor software and network engineer
for Genesis Software -
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C

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