The switches say 20W max consumption each. Is that not including the
SFP's? I assumed it was 20W when fully populated.
I included a 27CFM ventilation fan for the enclosure. A chart in the
Hoffman catalog suggests that'll keep me 15 degrees above ambient with a
100W heat load.
I can add a bigger fan for not much more money.
------ Original Message ------
From: "Jason McKemie" <[email protected]>
To: "[email protected]" <[email protected]>
Sent: 3/30/2017 7:08:57 PM
Subject: Re: [AFMUG] FTTH construction tiger team
The pigtail is a good way to go, a Tyco FOSC400A closure can be had for
about $100.
Those Mikrotiks are going to get HOT in there. I have a cooled
enclosure, and the one I was testing with got uncomfortably got when
loaded with optics. Definitely get industrial temp SFPs if you're going
that route.
On Thursday, March 30, 2017, Adam Moffett <[email protected]> wrote:
Four of the small mikrotiks with 10 SFP slots each. The enclosure is
12" deep, so we're cutting some L-brackets to mount them facing
towards the door.
I haven't thought much about a pigtail. I think it would be a few
hundred bucks more expensive because I don't actually have a splice
enclosure at this pole and I would have to add one.
------ Original Message ------
From: "Carl Peterson" <[email protected]>
To: "[email protected]" <[email protected]>
Sent: 3/30/2017 5:03:27 PM
Subject: Re: [AFMUG] FTTH construction tiger team
What switch are you using for AE in that enclosure?
Have you thought about using a pre-terminated pigtail? Just run it
from your enclosure into your vault/splice case.
On Thu, Mar 30, 2017 at 4:19 PM, Adam Moffett <[email protected]>
wrote:
I'm on a similar quest for low cost deployment methods. If you find
your super contractor team, you can give me a quote.
I was planning a switch cabinet with rackmount 2U enclosures with
splice trays inside and a patch panel on the front.....now I'm
looking at a plain Hoffman box, fanout the cables and terminate with
SOC's so the cables go straight into a switch. Waaay fewer parts,
waaay cheaper box. You can also put splice trays on the back plane
and splice pigtails onto your fanouts rather than use SOC's. That's
probably cheaper still, but then the box is bigger. With the SOC's
I can keep the box down to 20" wide, and I can mount it right to the
bottom of one of our poles. I could also (as someone said) put a
splice enclosure above this box and splice a bundle of long pigtails
onto the OSP cable. I suspect that would come out slightly more
expensive.
This box for 36 AE users will come in under $1800 and goes right on
the pole. I've already got electric service where I'm putting
it.....if I didn't, then I'd figure on another $1000-1500.
I'm not ready for the PON rabbit hole yet, but I see a lot of room
for scrimping there. The problem I see is to be efficient with the
cost of the OLT you need to aggregate hundreds of customers to one
spot. There won't be a cheap 36 user PON box....unless UBNT is
really cheap. I don't know what there price is like.
------ Original Message ------
From: "Chuck McCown" <[email protected]>
To: [email protected]
Sent: 3/30/2017 1:50:18 PM
Subject: [AFMUG] FTTH construction tiger team
I am considering building a construction team that can drop into a
small town or large subdivision, install fiber and move on.
Something where I own the construction equipment and keep labor
costs low. Want to identify the minimum equipment necessary and
the methods of construction to provide the best value.
HDD with mud truck
Do we need a vacuum excavator?
Mini excavator
One of these drop plows. Whoever said their guy can do 5-8 homes
per day.... yeah that one (to lazy to search who it was).
What to use for hand holes?
Plastic hand holes?
What are the best values for splice cases?
Perhaps try UBNT GPON. Can always throw it in the ditch if it does
not work.
So a best practices/FTTH in a box schedule of equipment and methods
is needed. From that I will look at the ROI needed from the
equipment as well as the labor costs to estimate the costs to do a
subdivision.
From that we will look at the ROI on a competitive ARPU to see if
an area is worth doing.
I keep getting asked to do this, so I guess I better do this.
--
Carl Peterson
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