Hi,
sorry for my imprecise reading of the manual. But it *reboots* after turning
on the replaced PSU. We tested this on two M20s.
Carsten
> -----Ursprüngliche Nachricht-----
> Von: Guy Davies [mailto:Guy.Davies@telindus.co.uk]
> Gesendet: Donnerstag, 13. Dezember 2001 16:11
> An: 'Strahler, Carsten'; Juniper-Nsp (E-Mail)
> Betreff: RE: [j-nsp] Hot-plugable power-supplies in a M20 ?
>
>
>
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>
> Hi Carsten,
>
> No, there is no conflict. If you're going to replace a PSU, you must
> switch off *that* PSU to disengage the interlock mechanism. You can
> then remove the PSU and replace it with a working one. Obviously, if
> that's your only PSU then you must power down the unit. But, if
> you've got a second PSU, it will continue functioning while you
> replace the faulty unit and, when installed, you can power it up
> without any impact on the performance of the box.
>
> Turning on a power supply causes a router to boot if it is not
> already booted. It doesn't cause it to *reboot*. If that were the
> case, you'd get a double hit whenever you turned on a dual PSU box
> (unless you flicked the switches on both PSUs at exactly the same
> time).
>
> Regards,
>
> Guy
>
> > -----Original Message-----
> > From: Strahler, Carsten [mailto:Carsten.Strahler@lambdanet.net]
> > Sent: Thursday, December 13, 2001 3:03 PM
> > To: Juniper-Nsp (E-Mail)
> > Subject: [j-nsp] Hot-plugable power-supplies in a M20 ?
> >
> >
> > In the hardware-manual of the M20 I found these two statements :
> >
> > >Hot-removable and hot-insertable-You can remove and replace these
> > components without
> > >powering down the system and disrupting routing functions.
> > Power supplies,
> > fan assemblies, >and Flexible PIC Concentrators (FPCs) are
> > hot-removable and
> > hot-insertable.
> >
> >
> > >Verify that a DC power supply is installed correctly:
> > >Make certain the ejector is clamped down and the thumbscrew
> > is tightened.
> > >Turn the power switch on the power supply to the ON position.
> > >If the power supply is functioning normally, the green OK
> > power supply LED
> > directly below >the handle lights.
> > >Turning on the power supply causes the router to boot.
> >
> > I guess there is a conflict between these two points. When I use a
> > hot-removable and hot-insertable component, the router
> > mustn't reboot after
> > turning on a replaced component.
> >
> >
> >
> > ----------------------------------------------------------------
> > Carsten Strahler
> >
> > IP Planning
> >
> > Lambdanet Communications GmbH (AS 13237)
> > Guenther-Wagner-Allee 13
> > D-30177 Hannover (Germany)
> >
> > Phone +49 (0)511 / 84 88 - 12 86
> > Fax +49 (0)511 / 84 88 - 12 59
> > mailto:carsten.strahler@lambdanet.net
> >
> > web: www.lambdanet.net
> > -----------------------------------------------------------
> >
>
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> .
>
>
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