[j-nsp] MX960 Power Options

[Chuck Anderson]

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.

I would use two PDUs to break out the two 208V/30AMP outlets to
multiple C19's (plus any C13's you need), and then use C19/C20 cords.
Each branch circuit PDU will have 4 C19/C20 cords connected (2 PEMs x
2 inputs per PEM).  Alternatively you could use L6-20 PDU
outlets/cords.

On Mon, Jan 25, 2016 at 09:25:02PM -0600, Colton Conor wrote:
> What are the options for powering a MX960 using AC power? The datacenter
> provider is offering us power  in the following options:
> 
> 120V/20AMP A/B Power
> 120V/30AMP A/B Power
> 208V/30AMP A/B Power
> 
> We are leaning towards using a MX960 with 4 AC power supplies and limited
> cards installed. More than likely we will order the 208V/30AMP A/B Power
> from the datacenter, but want to know if this will be enough? What does
> Juniper recommend?