[j-nsp] ACX5448 & ACX710 - Update!

[Baldur Norddahl]

On 29.07.2020 23.18, Mark Tinka wrote:
> On 29/Jul/20 20:18, Baldur Norddahl wrote:
>> I am also going to get a few ACX5448 for our datacentre locations. I am
>> still considering getting some AC to DC powersupplies for the ACX710
>> because the cost saving is considerable. It is not like finding AC to DC
>> devices is hard - every laptop comes with one (yea I know too little
>> voltage).
> If you are deploying 20, not a major issue.
>
> If you're deploying several-hundred or several-thousands units, this is
> not a small issue.
>

Not going to claim what is or is not a small issue for anyone here. Just 
saying that one rack unit external power supplies are plentiful and 
cheap. Like this one (just the first result on Google):

https://www.simplypowersupply.com/Rack-Mount-Power-Supply/RCP-1000-48-Meanwell-48Vdc-1000W-Rack-Mount-Power-Supply.aspx

We only have two datacentre locations and for those two location I would 
consider getting something like that. But I am probably going to go with 
the ACX5448 anyway because I could find a use for the extra 100G ports.

The 20 locations are at the incumbents CO locations where 48 volt DC 
with battery and sometimes generator backup is what you get. You could 
get 230V AC at these locations but it would be without backup.

In the future I might also get some locations in street cabinets, where 
I would put a standard DC UPS of the kind where you have a couple 12V 
batteries in series to make up the 48 volt, the equipment connected 
directly to the battery bank and a charger continuously charging the 
batteries. This is very cheap and extremely stable. The ACX710 device is 
environmentally hardened and clearly made for exactly that kind of 
deployment.

I see that ACX710 is not as much made for a specific customer as it is 
NOT made for a group of customers: the datacenter customers are supposed 
to buy the more expensive ACX5448. But said datacenter customers can 
spend one rack unit on an external DC powersupply and go with it anyway.

Regards,

Baldur