[j-nsp] MX960 Power Options

[Scott Granados]

8 AC inputs, I was always amazed by he amount of power the MX 960 used.  My drier uses less.:)  Then again when you think about being able to seat 100G cards and all sorts of goodies I suppose the power draw makes sense.

> On Jan 26, 2016, at 8:23 AM, sthaug at nethelp.no wrote:
> 
>>> I recommend 4 x 208V.  The MX960 uses "power zones" in a 2+2
>>> arrangement where half of the chassis is powered by 2 PEMs, and the
>>> other half of the chassis is powered by the other 2 PEMs.  Make sure
>>> the 1st PEM for each zone is powered by the A feed, and the 2nd PEM
>>> for each zone is powered by the B feed.  For dual-input PEMs, you
>>> should put both inputs of a single PEM on the same branch circuit,
>>> either A or B.
>> 
>> Hi Chuck,
>> 
>> why would one want to put both inputs on the same circuit? That kind
>> of defeats the purpose in my mind. Are there caveats?
> 
> He's talking about dual-input PEMs. 4 PEMs, 8 inputs. In this case it
> makes sense to both inputs of a single PEM on the same branch circuit
> (this is explicitly what Juniper recommends).
> 
> Steinar Haug, Nethelp consulting, sthaug at nethelp.no
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