If the radio will take + or -, then that tells me that neither input is
bonded to ground (as it should be if the world was perfect).
bp
<part15sbs{at}gmail{dot}com>
On 8/15/2016 6:07 PM, George Skorup wrote:
+ or - directly. So does that mean the return is chassis bonded or
not? As you know from years of experience with this stuff, you can't
mix +48 and -48 gear when the returns are chassis bonded. Meaning the
same DC bus, without DC-DC converters for isolation.
I have (perhaps too much) experience with Trango "-48" power supplies
blowing up. Replace them with a regular +48 power supply and it works
fine. Doesn't matter because neither side of the supply output is
referencing ground. And that's fine for one radio, or even two of the
same type, but still have to fall back to not mixing things.
This is such a PITA. I really wish everyone would standardize on
802.3at and/or make their power inputs polarity agnostic.
On 8/15/2016 7:41 PM, Erich Kaiser wrote:
I found a post on the forums about IP20C working, BTW these units
work + or - 48v DC directly into the unit. Also if you have the POE
Unit it can do a range from 24vdc up to like 50vdc or something.
Erich Kaiser
North Central Tower
er...@northcentraltower.com <mailto:er...@northcentraltower.com>
Office: 630-621-4804
Cell: 630-777-9291
On Mon, Aug 15, 2016 at 7:36 PM, Faisal Imtiaz
<fai...@snappytelecom.net <mailto:fai...@snappytelecom.net>> wrote:
>>I think it's -48 or optional +24
Correct... the optional = another piece of equipment which is
basically a dual port dc to dc converted (it can take 24vdc on
any polarity and and put out -48dc for the radio).
Faisal Imtiaz
Snappy Internet & Telecom
7266 SW 48 Street
Miami, FL 33155
Tel: 305 663 5518 x 232 <tel:305%20663%205518%20x%20232>
Help-desk: (305)663-5518 <tel:%28305%29663-5518> Option 2 or
Email: supp...@snappytelecom.net
------------------------------------------------------------------------
*From: *"Sean Heskett" <af...@zirkel.us <mailto:af...@zirkel.us>>
*To: *af@afmug.com <mailto:af@afmug.com>
*Sent: *Monday, August 15, 2016 7:57:50 PM
*Subject: *Re: [AFMUG] netonix work with PTP820S?
I think it's -48 or optional +24
-Sean
On Monday, August 15, 2016, George Skorup <geo...@cbcast.com
<mailto:geo...@cbcast.com>> wrote:
The ± is confusing. Does it support either polarity like
the SAF Lumina?
On 8/15/2016 5:58 PM, Sean Heskett wrote:
here's the data from the manual. we installed ours a
year ago and i thought the PoE cambium supplied was
an 802.3at but that could have been for the PMP450i
APs we deployed at the same time.
Power Input Specifications
• Standard Input: ‐48 VDC
• IDU DC Input range: ‐40 to ‐60 VDC
Power Consumption Specifications
• Maximum Power Consumption 6‐11 GHz:
40W; 13‐38 GHz: 35W
PoE Injector Mechanical Specifications
• Dimensions – 134mm(H), 190mm(W),
62mm(D), 1 kg
PoE Injector Environmental Specifications
• 33°C to +55°C (‐45°C to +60°C extended)
PoE Injector Power Input Specifications
*
Standard Input: ‐48 or +24 VDC (Optional)
*
DC Input range: ±(18/40.5 to 60) VDC
(+18VDC extended range is supported as part of
the nominal +24VDC support)
PoE Injector Interfaces
o
GbE Data Port supporting
10/100/1000Base‐T
o
Power‐Over‐Ethernet (PoE) Port
o
DC Power Port –40V to ‐60V (a PoE
supporting two redundant DC feeds each
supporting ±(18‐60)V is available)
On Mon, Aug 15, 2016 at 4:35 PM, George Skorup
<geo...@cbcast.com> wrote:
I thought they were -48? Or is that only the
direct power input?
On 8/15/2016 5:33 PM, Sean Heskett wrote:
PTP820S is 802.3at (i believe 30W)
-sean
On Mon, Aug 15, 2016 at 3:59 PM, Erich Kaiser
<er...@northcentraltower.com> wrote:
Do the Netonix switches work with
PTP820S? Has anyone used them togther?
Erich Kaiser
North Central Tower
er...@northcentraltower.com
Office: 630-621-4804 <tel:630-621-4804>
Cell: 630-777-9291 <tel:630-777-9291>
