I was thinking the same thing!
> On Nov 27, 2018, at 00:25, Ryan Ray wrote:
>
> You should all pitch in and build a propane backup generator
>
>> On Mon, Nov 26, 2018 at 8:04 PM Nate Burke wrote:
>> All the different companies on the tower bring their own genset.
>>
>>> On November 26, 2018
I get it now, the 48v never changes just the ground reference.
I'm guessing the reason no one uses negative ground loads on a -48 system
is the chassis ground being bonded to the inputs return.
Could I therically isolate my eltek -48 from any ground and operate it as a
negative ground system?
Chuck,
Are you sure the eltek's don't have the chassis ground bonded to the
positive output ?
So I'm assuming the complication here is that if you reverse the wires,
when you try to power a +48v device, and it's negative input is bonded to
chassis ground and you have a ground path between the
& how not to do storage... Can you imagine what a power wall going up
in a house fire would be like?
https://www.youtube.com/watch?v=WdDi1haA71Q
On 11/26/18 4:29 PM, Bill Prince wrote:
Closer to 14,000 homes. California already produces more solar
electricity than it can use. The next big
You should all pitch in and build a propane backup generator
On Mon, Nov 26, 2018 at 8:04 PM Nate Burke wrote:
> All the different companies on the tower bring their own genset.
>
> On November 26, 2018 10:00:36 PM CST, Darin Steffl <
> darin.ste...@mnwifi.com> wrote:
>>
>> How much juice you
All the different companies on the tower bring their own genset.
On November 26, 2018 10:00:36 PM CST, Darin Steffl
wrote:
>How much juice you running that you need that many generators?
>
>Our most heavily loaded WISP site uses about 650 watts so the little
>Honda
>EU2000 is more than enough.
How much juice you running that you need that many generators?
Our most heavily loaded WISP site uses about 650 watts so the little Honda
EU2000 is more than enough.
On Mon, Nov 26, 2018 at 9:38 PM Nate Burke wrote:
> When a tower loses power and there is not a site generator. --
> AF mailing
A long time. In theory if I've got 300 watt load then I've got 300 watts
for charging, so at least 16 hours to go from dead to charged.
Most sites are more like 100-150 Watt, and they're only that high
because the Telrad stuff needs a lot of juice. Still probably 10-12
hours to fully recharge.
Yeah, how many AH worth of batteries you have doesn't really affect how big
of wire you have to use, if the power supply can only give you 7.5 amps,
that's all the wire needs to be able to handle. Of course if you have too
many batteries, it's going to take forever to recharge them, but for our
Sounds like the perfect use for the Tesla Powerpack.
On 11/26/18 4:29 PM, Bill Prince wrote:
Closer to 14,000 homes. California already produces more solar
electricity than it can use. The next big thing is storage.
bp
On 11/26/2018 10:22 AM, Steve Jones wrote:
There were about 9500 homes
Not sure that is true with the J series?
From: AF [mailto:af-boun...@af.afmug.com] On Behalf Of ch...@wbmfg.com
Sent: Monday, November 26, 2018 2:56 PM
To: AnimalFarm Microwave Users Group
Subject: Re: [AFMUG] Eltek Valere J series -48 or +48
It is 48. Period. You choose the reference
Closer to 14,000 homes. California already produces more solar
electricity than it can use. The next big thing is storage.
bp
On 11/26/2018 10:22 AM, Steve Jones wrote:
There were about 9500 homes destroyed in the california wildfires.
Thats 9500 new mandated solar installations in a short
You are probably right. I have the question into the factory about the MX
series. I don’t recall the output terminals indicating they were referenced.
From: Ken Hohhof
Sent: Monday, November 26, 2018 5:06 PM
To: 'AnimalFarm Microwave Users Group'
Subject: Re: [AFMUG] Eltek Valere J series
I don’t know about J series, but their Micropack series is -48V. I seem to
remember because of the control circuitry.
From: AF On Behalf Of ch...@wbmfg.com
Sent: Monday, November 26, 2018 4:56 PM
To: AnimalFarm Microwave Users Group
Subject: Re: [AFMUG] Eltek Valere J series -48 or +48
It's -48VDC. You'll need an isolated DC-DC converter (eg, Meanwell RSD) if
you need to power +48VDC loads.
On Mon, Nov 26, 2018 at 5:41 PM TJ Trout wrote:
> I'm looking at the Valere series and I can't seem determine if it's +48 or
> -48, seems like it's +48 but I thought all the telecom stuff
It is 48. Period. You choose the reference if you want one.
If you tie the + terminal to chassis ground then the – terminal is the hot –48
VDC terminal.
If you tie the – terminal to chassis ground then the + terminal is the hot +48
VDC terminal.
If you don’t tie either to chassis ground,
I am an Eltek dealer. Low volume but I can probably get you a decent price.
From: TJ Trout
Sent: Monday, November 26, 2018 3:40 PM
To: AnimalFarm Microwave Users Group
Subject: [AFMUG] Eltek Valere J series -48 or +48
I'm looking at the Valere series and I can't seem determine if it's +48
Yeah, the terminals are on the small side. Also I usually use ferrules, and I
think I have trouble getting them into the compression connectors on the Traco
units.
If I remember right, I use 14 AWG stranded wire.
From: AF On Behalf Of SmarterBroadband
Sent: Monday, November 26, 2018
I'm looking at the Valere series and I can't seem determine if it's +48 or
-48, seems like it's +48 but I thought all the telecom stuff was positive
ground.
How do you go about powering negative ground loads from a positive ground
power source?
I'm assuming you can leave out the neutral and
We have lots of the TSP/BCM in the field. We have anywhere from a string
of 4 12ah to 35ah batteries on them. I want to say that we use 12AWG for
the battery connections into the BCM - but I would have to check.
On Mon, Nov 26, 2018 at 3:33 PM SmarterBroadband wrote:
> Ken
>
>
>
> How many AH
The BCM48A can take 10 gauge wire on the battery terminal.
I would assume the BCM48 is the same, but I don't have any of those.
Keep in mind the 360Watt unit at 48V means there can't be more than a
7.5amp load. On the 600Watt (BCM-48A) you can't have more than 12.5amp,
and in fact there's a
Ken
How many AH of battery do you hang off one of these units?
Battery connections look very small…
Adam
From: AF [mailto:af-boun...@af.afmug.com] On Behalf Of Ken Hohhof
Sent: Friday, November 23, 2018 1:35 PM
To: 'AnimalFarm Microwave Users Group'
Subject: Re: [AFMUG] 48v Power
The beatings will continue until moral improves...
On 11/26/2018 10:29 AM, Adam Moffett wrote:
I think if a given generation seems more professional or motivated than
the following one, it might be because the slackers from the prior
generation have already learned their lessons or filtered
I think if a given generation seems more professional or motivated than
the following one, it might be because the slackers from the prior
generation have already learned their lessons or filtered themselves out
of the work force. Do the slacker a favor and fire them. Failure is
how you
did ubnt get rid of their line of nifty gadgets like this
On Sun, Nov 25, 2018 at 7:33 PM CBB - Jay Fuller
wrote:
>
> a.10-4
>
>
> - Original Message -
> *From:* Robert
> *To:* af@af.afmug.com
> *Sent:* Sunday, November 25, 2018 6:35 PM
> *Subject:* Re: [AFMUG] Simple way to
There were about 9500 homes destroyed in the california wildfires. Thats
9500 new mandated solar installations in a short period. That will bump
demand, with tarrifs supply will be hopefully limited. maybe this will get
some funds floated into 43% efficiency research
On Sun, Nov 25, 2018 at 4:43
just shoot them
On Fri, Nov 23, 2018 at 3:35 PM wrote:
> Get near enough to throw a rock or wrench at them.
>
> Alternately enter their field of vision and start making wild gestures.
>
> Once you think they may have notice you, mouth the words “FUG YOU” in an
> emphatic manner.
>
> Once they
That's good input. In the past I've always gone to used servers as the
secondary market is always flush with gently used Dell and HP.
In this case I have reasons to look for new.
On 11/26/2018 11:43 AM, Dennis Burgess via AF wrote:
You can purchase a 24 core xeon box for 250-300 ish on ebay.
You can purchase a 24 core xeon box for 250-300 ish on ebay. RAM is king
though.
With products like Proxmox, its hard to identify what one is better. I would
state that as long as you have data backups then get smaller boxes with huge
CPU and RAM, where your data comes from don't matter as
On 11/26/2018 10:55 AM, Adam Moffett wrote:
It's been a few years since I last went on this journey.
(1) Will I get better prices on Dell from a VAR than I see on the Dell
website?
(2) I've heard Supermicro touted as a value brand, but when I spec
similar Supermicro and Dell systems Dell
It's been a few years since I last went on this journey.
(1) Will I get better prices on Dell from a VAR than I see on the Dell
website?
(2) I've heard Supermicro touted as a value brand, but when I spec
similar Supermicro and Dell systems Dell comes out cheaper. Am I
missing something?
I used to do a lot of weird stuff to get sites to work with -48V DC with +48V
equipment involving isolated grounding. It all works as long as you know what
you are doing and you are the only one who works on it. It just doesn’t scale
well.Far cheaper in the long run to put in an isolated
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