Meanwell RSD-300C-48 makes a 48V output from any input from 33-62v. Up
to 6A output.
Maybe the Ubiquiti switch you mention is special in some way, but in my
experience the 48v and 54v equipment are really the same thing. Voltage
varies for any number of reasons, so the device should have an upper and
lower bound of acceptable voltage, and if something is stated to be
"48v" or "54v" you tend to find deeper in the specs that they're both
accepting a range from 40 something to 50 something.
On 6/19/2019 1:19 AM, Sterling Jacobson wrote:
Having a hard time figuring out the exact part/price for something
like this.
Which Meanwell part would take 48v and make it 50v or 54v 5A?
*From:*AF <af-boun...@af.afmug.com> *On Behalf Of *Adam Moffett
*Sent:* Tuesday, June 18, 2019 10:21 PM
*To:* af@af.afmug.com
*Subject:* Re: [AFMUG] UPS and DC to DC conversion
That's weird to me. Any telecom equipment made for 48v I would have
assumed they intended it to be used with a rectifier, and consequently
I would assume it'd be ok up to at least 56v continuous; and maybe
more like 60-70v for a short duration. But yeah, DC-DC converter is
the fix.
On 6/18/2019 11:36 PM, Sean Heskett wrote:
You need to use a DC-DC converter for sensitive equipment like
that. Meanwell has a good selection.
On Tue, Jun 18, 2019 at 8:12 PM Sterling Jacobson
<sterl...@avative.net <mailto:sterl...@avative.net>> wrote:
Apparently the UBNT EP-S16 freaks out if it goes above 54v.
Is there any way to assure it doesn’t float/charge above 54v,
or maybe even just 50v?
*From:* AF <af-boun...@af.afmug.com
<mailto:af-boun...@af.afmug.com>> *On Behalf Of *TJ Trout
*Sent:* Tuesday, June 18, 2019 7:26 PM
*To:* AnimalFarm Microwave Users Group <af@af.afmug.com
<mailto:af@af.afmug.com>>
*Subject:* Re: [AFMUG] UPS and DC to DC conversion
contact talley or tessco for a price, don't trust what you see
on google, it's like 50% less
On Tue, Jun 18, 2019 at 6:25 PM TJ Trout <t...@voltbb.com
<mailto:t...@voltbb.com>> wrote:
all 48v systems for battery power will float at 54v, it's
also adjustable via the battery chemistry
On Tue, Jun 18, 2019 at 3:33 PM Sterling Jacobson
<sterl...@avative.net <mailto:sterl...@avative.net>> wrote:
Ok, cool.
So can the 7bc2 be adjusted slightly to output 50v
instead of just 48v?
There will be some loss going 100’ or so, right?
*From:* AF <af-boun...@af.afmug.com
<mailto:af-boun...@af.afmug.com>> *On Behalf Of *TJ Trout
*Sent:* Tuesday, June 18, 2019 4:23 PM
*To:* AnimalFarm Microwave Users Group
<af@af.afmug.com <mailto:af@af.afmug.com>>
*Subject:* Re: [AFMUG] UPS and DC to DC conversion
12-54v is inefficient, if you want 200ah of battery
use 4x50ah batteries for a 48v string
ICT24048-7BC2 360W 54v AC-DC + LVD + Charger
ICT-TMP - Temp sensor for charge compensation if
batt's outside
ICT-WMB - Wall mount bracket
SITE Monitor - Voltage monitoring
Or
Alternativly;
48v din mount PSU
48v 'dc ups' to charge batt's and provide LVD
OR
48v din 'dc ups' with integrated psu + lvd + charger
(i.e. DIN-UPS 48-5 cheaper options available)
On Tue, Jun 18, 2019 at 2:50 PM Sterling Jacobson
<sterl...@avative.net <mailto:sterl...@avative.net>>
wrote:
I’m trying to put a “box” system together for our
house POP sites and need help with the DIN stuff
and UPS.
Can you guys give me an idea or example of the
following?
I want to take standard AC 15A in from a breaker
outside the box.
And using maybe one or two 12v 105AH AGM
batteries, supply 50v 6A up the side of the house.
I have never ordered DIN parts like this, guess I
don’t have to use DIN, but would be nice.
Having a problem finding a DC to DC converter that
takes 12v and upconverts to 50v 5-6A.
Is this the cost effective method? Something like
this:
Monitoring Sitemonitor Base Unit II SMON Base II
1.00 $100.00 $100.00
UPS Monitor Sitemonitor Int MorningStar
MeterBus SMON MorningStar 1.00 $60.00
$60.00
UPS Charge MorningStar Sunsaver Dual
1.00 $165.00 $165.00
Battery AGM Deep Cycle 105AH NPP FT12-105AH
2.00 $225.00 $450.00
DIN Parts like DC fuse/breakers and trunk stuff
1.00 $100.00 $100.00
DC 12v to 50v 5A 1.00 $150.00
$150.00
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