On 5/Mar/15 17:30, Tom Storey wrote: > Interesting, Ive got a couple of MX960's with high line AC PEMs in front of > me, and if I only turn one of them on, I only get half a router powered up. > As far as I know, there is still zoning with high line AC PEMs. > > PEM0 and PEM2 supply one half of the router (slots 0-5 and RE0 and one fan > tray), and PEM1 and PEM3 the other half (RE1 and slots 6-11 and the other > fan tray) - as I understand it. > > So we do PEM0 and PEM1 as A feeds and PEM2 and PEM3 as B feeds, therefore > if you lose A or B the router keeps running with all slots. > > So 2 may be mandatory, but you have to do one for each zone. > > Smaller boxes like MX240 we can power entirely with a single PEM.
Thanks for the feedback, Tom. My tests were on an MX480, IIRC. So it's likely that an MX960 would need more power. Mark. _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
