[j-nsp] 208v power and 110...

[Chuck Anderson]

https://www.juniper.net/documentation/en_US/release-independent/junos/topics/concept/power-supply-mx240-ac.html

You can run the power supplies on either 120v or 208/240v .  If you use the lower voltage, you need 4 power supplies for redundancy.  If you use the higher voltage, you only need 2 for full redundancy.

You decide what kind of power to use by what you already have available, how many power supplies/circuits you have, etc.  If you are in a position to decide what kind of power to make available, then choose the higher voltage if possible--it is more efficient and requires fewer power supplies.

On Wed, May 09, 2018 at 10:38:50AM -0700, mike+jnsp at willitsonline.com wrote:
> Hi.
> 
> 
> I now have an MX240 router and my god what a beast this is....!
> 
> My system has the 'high line' 208v power supplies and this is my first time
> dealing with non-110v ac power. I have the two power supplies installed and
> I am thinking I may want to add a switch to this configuration and to date,
> I have no experience with any switches using this high of juice. I'm looking
> for something with 10G sfp+ interfaces and I'm just at a loss as this is a
> different world. Is the strategy in this situation that I need to commit to
> everything being high voltage, or do I get a power strip of some kind to
> feed my 110v stuff?
> 
> 
> Mike-
> 
> -- 
> Mike Ireton
> Your Town Online, Inc