The built-in GPS in the 450 works reasonably well. Now that they have
the option of internal GPS and freerun it's reasonably safe to let them
run that way. We still have most of our units powered by CTM's but have
increasingly gone to turning off sync-over-power. There is some risk
of the unit losing GPS and going into freerun and then drifting off
timing but I have not seen an issue with it to date.
Other tower top GPS solutions are available if you don't want to risk
the internal GPS unit - Cambium uGPS, Packetflux, Last Mile Gear.
Mark
On 9/28/14, 10:27 AM, Josh Baird via Af wrote:
If the radios did have SFPs, wouldn't you still need to provide sync
(which would mean additional cables)?
On Sun, Sep 28, 2014 at 10:12 AM, Mark Radabaugh via Af <af@afmug.com
<mailto:af@afmug.com>> wrote:
http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CC0QFjAA&url=http%3A%2F%2Fwww.commscope.com%2FDocs%2FHELIAX_FFDirect_Brochure_BR-107083.pdf&ei=uhQoVLffMIWayQSu5YCoBA&usg=AFQjCNFvqSzEDLibQ4WCTebhIbt3KgEQYQ&sig2=gR3vElbGdefgDpcYEtvB2Q&bvm=bv.76247554,d.aWw
I'm getting pricing on this - if it's anything remotely reasonable
I'm really thinking about using this for tower sites. With 3
fiber feeds and 3 power feeds I can use one power/fiber pair to
each of the SAF Integra's, and use the other one to go to a
enclosure with power and a switch to connect to the APs'.
I'm trying to find out if I can get a small switch and a
PacketFlux Syncinjector stuffed into a 3M Tower Dome Closure:
http://multimedia.3m.com/mws/mediawebserver?mwsId=66666UgxGCuNyXTtoxMVlxMVEVtQEcuZgVs6EVs6E666666--&fn=Tower_Dome_Terminal_TDT_T_25_6RS
The combination seems like it would solve a lot of problems. It
gives us one cable up the tower and the cable fits properly into
standard tower hangers. The dome closure can be built on the
ground with appropriate length cables to each AP so that the whole
thing can be assembled on the ground and then hoisted into place
so that the tower monkeys only have to plug things in.
The other nice part is if you are using contract tower crews the
whole thing looks just like installing a standard Remote Radio
Unit (RRU) radio head, so they should both not need a lot of
retraining.
If we could get our radio manufacturers to start making equipment
with SFP's this would be even easier. That's a hint there Cambium.
Mark
On 9/28/14, 9:50 AM, Chuck Hogg via Af wrote:
We do power and fiber up the tower as our standard...ever since
that standard has been used, I don't think we've lost a site yet.
Regards,
Chuck
On Sat, Sep 27, 2014 at 4:32 PM, Matt via Af <af@afmug.com
<mailto:af@afmug.com>> wrote:
This is what we have used for all our CMM units for years.
http://www.outdoorspeakerdepot.com/14ga2inspca5.html
Outdoor, UV resistant, etc.
On Sat, Sep 27, 2014 at 1:16 PM, Gino Villarini via Af
<af@afmug.com <mailto:af@afmug.com>> wrote:
> Planning on hanging a DC box on the tower
>
> 30-40w total power
>
> Cat5 using multiple pairs or 2 conductor cable?
>
> We are inclined on cat 5 for standardization purposes...
>
> Sent from Marconi's and Graham Bell's fused thoughts!!!
>
--
Mark Radabaugh
Amplex
m...@amplex.net <mailto:m...@amplex.net> 419.837.5015 x 1021
<tel:419.837.5015%20x%201021>
--
Mark Radabaugh
Amplex
m...@amplex.net 419.837.5015 x 1021
