Anyone want a UPS?

From: Fred N. van Kempen <Fred.van.Kempen_at_microwalt.nl>
Date: Sun Dec 15 06:46:00 2002

> Any reasonable UPS will be heavy, because big batteries are heavy :-)

Yes. Although my machine room currently runs on two 2400VA boxes, (note:
we use 220VAC here, not 110..), they will soon be replaced by two new
systems that do 3000VA each, with a 500VAC feed. The fun part is, that
they have modular run time by adding battery boxes ("stack em up!"), AND
(what I just learned half an hour ago! %-] they have a provision for
connecting an external generator. Which I have. :)

(OKOK... legally I am not allowed to run that thing for extended periods
of time, but I _do_ have permission to have it fired up for emergency
purposes, soo... hey! ;-)

I guess I'll spend the week between xmas and new year's rewiring, and doing
power measurements on the circuits....

Oh- and the real fun thing is: both one of the current UPS'es, and the new
ones, have ethernet SNMP monitoring.. I can actually ping my UPS:

H:\>ping ups

Pinging ups0.microwalt.nl [10.0.95.7] with 32 bytes of data:

Reply from 10.0.95.7: bytes=32 time=10ms TTL=255
Reply from 10.0.95.7: bytes=32 time=10ms TTL=255
Reply from 10.0.95.7: bytes=32 time=10ms TTL=255
Reply from 10.0.95.7: bytes=32 time=10ms TTL=255

Ping statistics for 10.0.95.7:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 10ms, Maximum = 10ms, Average = 10ms

H:\>

which is truly fun :)

--fred
Received on Sun Dec 15 2002 - 06:46:00 GMT