[c-nsp] RPS 675 question

[lee.e.rian at census.gov]

Hi Colin,
Try yanking the plug out of the RPS instead of pressing the button on the
front panel to put it back into standby mode.  At least for me, that gets
the switch back to using it's PSU without causing a reboot.

Lee

Colin Whittaker <colin at netech.ie> wrote on 01/23/2007 06:56:10 PM:

> Hi Brad,
>
> We do this all the time. Works fine.
> What is also quite common is placing the main power on a UPS and leaving
> the RPS on raw power just to protect against UPS failure etc.
>
> Things are not rosy in the world though. The RPS is designed to protect
> against PSU failure and is pretty bad at most other tasks which you
> think it would be usefull for.
> In the event of power to the switch psu failing the switch psu goes
> offline and the rps takes over as you would expect.
> However once power is restored to the switch PSU it does not come back
> online. This is not the end of the world as it has saved you an
> unplanned outage and you can schedule a reboot of the device to have the
> PSU become active once more.
> However this reboot can't be invoked remotely it needs to be triggered
> by pressing the button on the front of the RPS to put it back into
> standby mode. Which means sending someone to the site.
>
> Colin
>
> On Tue, Jan 23, 2007 at 11:14:33AM -0800, Brad Beck wrote:
> > Does anyone here have operational experience with the RPS675?  I'm
> working on a design and would like to use this device, but am
> nervous about the installation guide statement which states
> something like: "the RPS must be attached to the same power source
> as the internal switch power supply.  If not, random resets may occur".
> >
> > This suggests to me that the RPS and the switch must be attached
> to the same AC circuit, but this isn't clearly spelled out.  I'd be
> interested in hearing about any deployments where the RPS and
> switch(or whatever) were attached to seperate AC circuits.
> >
> >
> > thanks.
> >
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>
> --
> Colin Whittaker                  +353 (0)86 8211 965
> http://colin.netech.ie               colin@(magnet|netech).ie
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