[c-nsp] DC PoE Switch Recommendations

[Patrick Marc Preuß]

Hm a little unusual combination ;-) 

PoE usually is some sort of enterprise line Feature and dc input is more on the Telkom side of things, most data centers I know had two circuits of 3 phase ac.

But anyway Did you have thought about using normal ac powersupplies and on the dc side using a dc / ac inverter? 

Something like: 
RS Pro 1000W Fixed Installation DC-AC Power Inverter Pure sine, 48V dc / 230V ac
They are sold  around 350 Euro here in Europe. 


> Am 04.08.2021 um 14:28 schrieb Shawn L <shawn at rmrf.us>:
> 
> If you're looking for new equipment, what about a 3850 series switch?
> They're getting close to the end-of-sale from Cisco, but will still be
> supported for quite a while.
> 
> If you're looking at used equipment, it can be tough to find DC power
> supplies.  I have a couple of (reputable) larger suppliers that we use that
> can usually find them.
> 
> Shawn
> 
>> On Tue, Aug 3, 2021 at 6:55 PM Mike Hammett <cisco-nsp at ics-il.net> wrote:
>> 
>> I'm looking for recommendations on some used Cisco PoE switches.
>> Requirements are that they take -48 vDC power and have PoE output. They'd
>> mostly be managing OOBM, but they'd also power an IP phone, a couple of
>> cameras, and an AP.
>> 
>> 
>> I was looking at the 3750X, which is available at a very reasonable price,
>> but the power supplies are like $2k/each, which is not very reasonable.
>> 
>> 
>> 
>> 
>> -----
>> Mike Hammett
>> Intelligent Computing Solutions
>> 
>> Midwest Internet Exchange
>> 
>> The Brothers WISP
>> 
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