[j-nsp] Activating FPC's on an EX8208

[Kevin Wormington]

That's right the power zones are only for DC power.  AC has only one 
zone, but according to the link below 2 high line AC supplies are 
mandatory and 3 low-line.  I guess it might come up on a single high 
line depending on what line cards you have.

http://www.juniper.net/documentation/en_US/release-independent/junos/topics/reference/specifications/calculating-power-requirements-mx480.html

On 03/05/2015 12:48 AM, Mark Tinka wrote:
>
>
> On 4/Mar/15 18:21, Kevin Wormington wrote:
>> I don't have any experience the the large EXs, but is there a chance
>> you don't have enough power to the chassis to bring the line cards
>> online? I know the larger MXs require a certain number of supplies and
>> IIRC certain supplies power certain slots.  So if you just have one
>> supply plugged into 120VAC it may not bring the line cards online.
>
> For the MX routers, I think this is only if you run DC or the AC low
> power units (i.e., 120VAC).
>
> IIRC, a single 240VAC PSU on an MX should be able to drive an entire MX
> chassis, non?
>
> Mark.
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