That looks intriguing. DC power on the relays says only up to 30V
though. And Would still require external fusing for each link?
I have a couple sites where I ran multiple fibers but only a single 12/3
to the top to power an Edgepoint that was powering AF11's. I'm
upgrading more sites from AF11 to Bigger radios, and am trying to
minimize having to pull new cables. At most sites it's easy enough to
just pull new cables for each radio, but at some of the grain elevators,
the cable path is quite convoluted, and the installers yell and complain
about having to pull wires. Interestingly, they also yelled and
complained about wanting to pull spares initially.
The Mikrotik NetFiber9 will give me the extra 10G ports on the existing
fiber, can power it off the Edgepoint, so that part is easy. Just need
to figure out the power to the radios. Aviat can do POE, but not the
POE that the edgepoint outputs, so I run it through a double set of
GIGE-POE, one to take the UBNT 56v and convert to 2 wire, then a 2nd to
convert the 2wire into Aviat POE. But at that site, I have a large NEMA
on a nice platform, so everything is DIN mounted in that with lots of room.
On 11/17/2022 11:34 AM, Jason Wilson wrote:
I'm just starting to use these for some VERY remote sites.
https://www.tyconsystems.com/tpdin-monitor-web3
Jason Wilson
Remotely Located
Critical Infrastructure Service Provider
Providing High Speed Internet to out of the way places.
530-651-1736
530-748-9608 Cell
www.remotelylocated.com <http://www.remotelylocated.com>
On Thu, Nov 17, 2022, 09:31 <[email protected]
<mailto:[email protected]>> wrote:
I've used the PDU at the bottom of the tower. My only complaint
at the time
was the character limit on port description. I think it was 11
characters
or some such....I had to come up with some cryptic abbreviations
when I
really wanted to say "Power to Telrad Compact 1000 - 270
azimuth". I think
they were talking about fixing that in a future version of the
base unit,
but I haven't used any packetflux lately so I don't know if that's
still an
issue or not. If you're powering 100W radios then you'd be
limited to 3 per
PDU. A fourth radio would put you over the 8A total. That wasn't
an issue
in my deployment, but if you're planning 4+ sectors per tower then
that's
something to be aware of. Next problem is wire gauge. Anything
bigger than
14ga is gonna have trouble squeezing into the connector on the
packet flux
PDU. Voltage drop on 48V /8A with 14ga is going to be pretty
severe at
300ft, but if the tower is short then it's probably ok. I was
deploying on
70ft poles, and we ran 16ga up to each radio so it was acceptable, but
feeding the 8A input on the packetflux PDU on a taller site could
be an
issue.
In any case I'd advise separate cables. I know it seems wasteful,
but you
can have any tower dude climb up there and put the green plug into
the green
hole. If you want the tower climber to strip and terminate DC
cables then
you'd have to be careful who you send up there. If you're dead
set on a
single power run then something with built in breakers is a good idea.
Packetflux PDU would fit that bill.
-----Original Message-----
From: AF <[email protected]
<mailto:[email protected]>> On Behalf Of Nate Burke
Sent: Thursday, November 17, 2022 11:48 AM
To: Animal Farm <[email protected] <mailto:[email protected]>>
Subject: [AFMUG] Outdoor DC Distribution
Mikrotik makes a nice outdoor fiber switch with a handfull of 10G
ports.
Does anyone make something similar for DC Distribution? Run a
single power
cable up a tower and DC to multiple radios? I'm thinking like 3 or 4
licensed radios each needing 2 wire DC input and 10G fiber.
Rather than running individual power wires for each one. I've
used a UBNT
Edgepoint S16, taking the 56v POE Output ports, and running them
through the
MCT GIGE-POE to extract 2wire power to run to the radio.
But that's extra pieces needing a place to be mounted.
Would the Site Monitor 5 channel PDU fit the bill? IT says 3A per
channel,
and 8A total. So in theory that should be able to provide about
140w per
radio. Could put it in some sort of NEMA with a DIN mount. The
Sitemonitor
base is hardened, would the PDU be as well?
Are there other options?
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