Over the course of my career, I do not recall failures due to high temps but
many due to low temps.
From: Trey Scarborough
Sent: Friday, March 31, 2017 10:16 AM
To: af@afmug.com
Subject: Re: [AFMUG] Gigabit ethernet converters?
Forrest,
I think this is a great idea and would be one of the first to want some. If
you could just run power and fiber up and get sync/power and fiber conversion
in one unit it would simplify things greatly. I have been looking in to some of
the gigabit sfp conversion as well for a different fiber device that I am
trying to cobble together. I have found some that I have torn apart there are
the Mikrotik and UBNT ones that seem to probably be more complicated than what
you are looking for. Here is a list of ones I have used.
BB-elec industrial have these in black metal boxes in West Texas with no
cooling and never had an issue.
http://www.bb-elec.com/Products/Ethernet-Media-Converters/Unmanaged-Media-Converters/IE-Giga-MiniMc-LFPT.aspx
Transition networks
https://www.transition.com/products/media-converters/mge-psw-sfp-01/
and some new ones I have started to play with
https://www.aliexpress.com/item/SFP-Gigabit-Fiber-Optical-Media-Converter-Board-SFP-1000Mbps-Media-Conerter-Gigabit-Fiber-Transceiver-Board/32715964991.html
Trey
On 3/31/2017 10:46 AM, Forrest Christian (List Account) wrote:
They want a stand per radio, with a fiber to universal poe converter on each
strand. That way all of their switchgear can be at the bottom. If you
replace all of the Lan ports in a syncinjector with sfp ports, then you get the
idea.
I can think of lots of other ways to make this work, enough that I wouldn't
be inclined to build this except that this is definitely a recurring theme. I
think that the idea is that they really want to limit the quantity of gear at
the top. If it was me, I'd put either a poe switch up top or a bunch of those
ubnt fiber to poe converters, but apparently there are quite a few wisps who
don't like this idea.
On Mar 31, 2017 8:27 AM, "Paul McCall" <pa...@pdmnet.net> wrote:
How do not have a switch up if you have any form of a SyncInjector there?
“the non-POE side of the injector” needs to go somewhere, unless you are saying
that every POE port has a corresponding fiber port that would mate with a fiber
strand coming down the tower and have a router with a bunch of SFPs to match.
The S16 is a good model, just add Sync. Extremely simple. No fiber
terminations at the top. (we use MST’s which are a cheap reliable way to not
have to do the tower top terminations) The next models of 16 will have
additional SFP ports. I assume when UBNT APs have SFPs is when the additional
SFPs would appear on the S16 type device.
VLANing using a single fiber coming down the tower is a simple task.
Paul
From: Af [mailto:af-boun...@afmug.com] On Behalf Of Forrest Christian (List
Account)
Sent: Friday, March 31, 2017 10:08 AM
To: af <af@afmug.com>
Subject: Re: [AFMUG] Gigabit ethernet converters?
What I keep hearing from customers is that they want to run a multistrand
cable up the tower and have an all in one box at the top which they terminate
the cable into, hook up power to it, and then run short jumpers to their
radios. I've heard this from enough different customers that it seems like a
common desire.
They all seem to want the box to do media conversion and power injection
and sync, with remote control and not much more. When quizzed about just
doing a switch and an injector up top, they all expressed how this was
unacceptable.
At this point I'm looking at feasability. I'm not sure if this will ever
see the light of day, a lot depends on the amount of R&D required.
On Mar 31, 2017 7:07 AM, "Paul McCall" <pa...@pdmnet.net> wrote:
Forrest,
For what it is worth, when we went Fiber (MST) up the tower, we run UBNT
S16s up there which is simple and working well, and GPS pucks on the ePMP, or
Syncbox 12 (or Junior) for devices that need sync. We have a handful of 450s,
25 320s, and a dozen or so 900s where we use the SyncBox.
Been very pleased so far with the reliability of the S16 POE. We VLAN
APs in one group and BH’s each on their own VLAN, and bring it down the fiber.
If we have other devices with fiber, we bring them down on their own fiber (off
the same MST). Of course there is core router with fiber inputs only being
used (with the exception of the sitemonitor which I may have to buy a media
converter for just to isolate the electrical connection into the router.
So, as far as anything up top, I would think it would have to be some
form of switch, or it would be quite kludgy.
Paul
From: Af [mailto:af-boun...@afmug.com] On Behalf Of Forrest Christian
(List Account)
Sent: Thursday, March 30, 2017 8:26 PM
To: af <af@afmug.com>
Subject: Re: [AFMUG] Gigabit ethernet converters?
I've torn a couple apart that use a fairly easy to use chipset. But only
available in commercial temperature range.
Some of the battle here is figuring out the vendors who do this type of
stuff. I want to avoid switches since I want this as transparent as possible,
but I might end up having to go there. I have another secret weapon in my
arsenal but I'm hoping I don't have to go there since that's more software and
software takes time.
On Mar 30, 2017 2:21 PM, "Chuck McCown" <ch...@wbmfg.com> wrote:
I looked at doing media converters last year. Not trivial.
From: Forrest Christian (List Account)
Sent: Thursday, March 30, 2017 2:07 PM
To: af
Subject: Re: [AFMUG] Gigabit ethernet converters?
Yeah, maybe I should be clearer what I'm looking at.
I'm looking at various options to build a tower-top box to simplify the
fiber up the tower with syncronized radios at the top.. Think a multiport
ubiquiti fiberpoe with sync over power and a gps receiver built in, along with
tower-top management.
I don't want to include a switch up top - most people want as little as
possible up there, and I'd rather keep the whole thing as simple as possible -
I'd rather just use a copper-to-sfp chipset, but I haven't found any which I
feel comfortable integrating. So I need to tear some more of the units apart
to figure out what chipsets are available.
-forrest
On Thu, Mar 30, 2017 at 8:12 AM, Adam Moffett <dmmoff...@gmail.com>
wrote:
RB260.
Haven't had one fail due to cold yet that I know of. That's a
switch, so maybe it's more complicated than you're going for.
------ Original Message ------
From: "Forrest Christian (List Account)" <li...@packetflux.com>
To: "af" <af@afmug.com>
Sent: 3/30/2017 1:45:52 AM
Subject: [AFMUG] Gigabit ethernet converters?
I want to buy another selection of gigabit copper to sfp converters
for reverse engineering purposes. Ideally some which are known to work well
and especially any which don't fail in non climate controlled environments.
What is everyone using?
--
Forrest Christian CEO, PacketFlux Technologies, Inc.
Tel: 406-449-3345 | Address: 3577 Countryside Road, Helena, MT
59602
forre...@imach.com | http://www.packetflux.com
