Cat5 Cable from one rooftop to another rooftop

Are the two buildings using the same transformer? If so what about something like Ethernet Over Power or some type of power line communication?

If they use the share the same electricity supply/source I would go for the Ethernet Over Power also, some nice and cheap product around. I would explore other options and would be slow to run cable across using trunking or any other support unless it is very very secure, away from general access so you don't risk it falling months/years down the line and damaging someone or thing... If I had to run the cable, run it alone.
 
Good Point, we always run 2 cables. This is industry standard.

Chris
No it's not. What's the advantage of running two cables directly parallel to one another? If one gets damaged the chances are the other will also be damaged. If you run two seperate cables for redundancy they should be run in seperate conduits. Not many businesses will see the need for such an expensive addition.
 
I have over 100ft of cat 5 cable on the outside, from the house, stretched all the way over the garden to the workshop at the bottom of the garden. It isnt inside a conduit of any kind, and has been working fine for the past 6 years+

I couldn't bury it down a path, as most of the garden is flagged, along that particular stretch.

Wireless was my first option, but with the tin roof, the signal was not getting down here, hence the option to cat 5 it. There is also a made up cat5 telephone cable, attached to the ethernet cable coming down here. Upto now, touch wood, no issues have arisen.
 
This has been mentioned before but the professional way to do this would be to use a Catenary wire to suspend the Cat5e cable from. Also I would only use outdoor UTP\FTP solid core cable. Outdoor approved cabling uses UV resistant materials so that outer sheath doesn't become brittle and brake down.
 
If there is metal in the buildings or siding/roofing, wireless would have to be mounted on the outside of each building. Proper radios for this sort of thing help a lot. I try to never use home quality wireless gear for these situations.

I would agree with everyone else though who says go with wire if you can. Use a good UV rated cable with a catenary wire as TLE suggested.

My home/office is connected to the internet by a wireless service provider. To get a clear shot at the main tower, my dish is placed away from the building on a pole and runs about 60 feet to my house, with no catenary cable. It has been there for 4 years with no issues and shows no signs of breaking down at this point. We did not use catenary wire because the run is susceptible to trees and tree debri falling over the line which would likely break the catenary wire anyhow or pull the anchors out of the building or pole. I figured it would be simpler to run a new cable in the event of an incident.

I have seen many of these installations and with the proper cable, I regularly see aerial runs of cable without catenary wires as long as 80 feet that hold up fine. Most of them would benefit from a catenary cable and if it were my business installing these runs, I would likely use them if the clients were willing to pay the cost.

It is also worth emphasizing that you use different cable for different applications for a reason. Direct burial requires a different cable than aerial routing.
 
Iptech,

Leviton certifications call for two cat5 cables per run. This is helpful if a rat chews a wire or if another cat 5 cable is needed in the future, possibly a printer. This is industry standard and no this does not require two seperate conduits. The cost isn't that much more expensive, mostly just the cost of the cable.
 
Iptech,

Leviton certifications call for two cat5 cables per run. This is helpful if a rat chews a wire or if another cat 5 cable is needed in the future, possibly a printer. This is industry standard and no this does not require two seperate conduits. The cost isn't that much more expensive, mostly just the cost of the cable.
It may be the recommendation of a company selling Certification programmes, but it is not industry standard. Running two cables side-by-side will not stop rats chewing both cables if they're already inclinded to chew one.
 
The cable would need to be shielded like coax as I believe cat 6 is. Just twisted pair will pick up too much emf noise.
 
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