Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.sys.raspberry-pi > #9035

Re: UPS recommendations?

Show all headers | View raw

In article <u18i6cxiv7.ln2@news.ducksburg.com>,
Adam Funk  <a24061@ducksburg.com> wrote:
>Hi,
>
>I've used one of those plug-through energy monitors to measure the Pi
>and some other equipment that I'd like to protect with a UPS.
>
>networking stuff: 
>   26 W (average over 6 hours)
>   27 W (instantaneous reading when I checked)
>   49 VA (" ")
>   PF 0.54 (" ")
>
>Pi + external hard drive
>   6 W (average over 14 hours, including some intensive file transfers)
>   5 W (instantaneous reading when I checked)
>   13 VA (" ")
>   PF 0.41 (" ")
>
>So I figure 65 VA + safety margin.  I'd prefer a small, quiet UPS (to
>go in a cupboard) with surge protection.  
>
>It would be a bonus if it can be configured not to shut the Pi down
>immediately when the power goes out (in case of brief interruptions) &
>to wait a few minutes after the power comes back on before turning the
>Pi back on (in case the power flickers before staying on).
>
>I'd be grateful for any recommendations.

APC Back-UPS 500 (500VA)

It has serial and USB interfaces and I think it is compatible with upsd.

The Back-UPS 300 is a little smaller/cheaper but only has the serial
output.

I have a few of the 300's.

Most small UPSs have IEC (kettle) sockets, so you might need to make
up a standard 4-way 13A extension with an IEC plug on it...

Gordon

Back to comp.sys.raspberry-pi | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

UPS recommendations? Adam Funk <a24061@ducksburg.com> - 2015-07-03 12:25 +0100
  Re: UPS recommendations? Gordon Henderson <gordon+usenet@drogon.net> - 2015-07-03 14:08 +0000
    Re: UPS recommendations? "Dave Liquorice" <allsortsnotthisbit@howhill.com> - 2015-07-05 17:17 +0100
      Re: UPS recommendations? Martin Gregorie <martin@address-in-sig.invalid> - 2015-07-05 17:03 +0000
        Re: UPS recommendations? "Dave Liquorice" <allsortsnotthisbit@howhill.com> - 2015-07-05 20:58 +0100
    Re: UPS recommendations? Adam Funk <a24061@ducksburg.com> - 2015-07-07 17:00 +0100
  Re: UPS recommendations? "Dave Liquorice" <allsortsnotthisbit@howhill.com> - 2015-07-05 17:40 +0100
    Re: UPS recommendations? Martin Gregorie <martin@address-in-sig.invalid> - 2015-07-05 17:19 +0000
      Re: UPS recommendations? "Dave Liquorice" <allsortsnotthisbit@howhill.com> - 2015-07-05 20:39 +0100
        Re: UPS recommendations? Folderol <general@musically.me.uk> - 2015-07-05 21:24 +0100
  Re: UPS recommendations? Adam Funk <a24061@ducksburg.com> - 2015-07-07 16:57 +0100
  Re: UPS recommendations? Adam Funk <a24061@ducksburg.com> - 2015-07-10 21:18 +0100
    Re: UPS recommendations? Martin Gregorie <martin@address-in-sig.invalid> - 2015-07-10 22:42 +0000
  Re: UPS recommendations? David Taylor <david-taylor@blueyonder.co.uk.invalid> - 2015-07-11 16:19 +0100

csiph-web