80 meter external link?

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stuffed

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#90246 17-Sep-2011 10:30

As a community group we are wanting to get an internet connection to a DVR 80 meters external line of site distance. Which way should we go - cable or wireless? Have a budget of about $750. Appreciate any informed comments! Thanks

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sbiddle

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#522273 17-Sep-2011 10:37

It really depends how easy running cable is and what level of performance you want.

Cable will always deliver faster speeds, however a couple of UBNT Loco's will give you 50Mbps full duplex throughput.

stuffed

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#522281 17-Sep-2011 11:02

Thanks. Will run the cable underground in a 50mm duct. Ok not being too tech – guess UBNT Loco's are boosters? How much are they?

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webwat

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#522376 17-Sep-2011 15:48

So how easy is it to lay the duct, or is it already there?

Time to find a new industry!

stuffed

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#522383 17-Sep-2011 15:57

New duct that will put in during major road works. Hopefully our nice council will do it for us (local CCTV network).

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raytaylor

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#522481 17-Sep-2011 22:11

The loco's are an ethernet cable bridge.
BUT

It is ALWAYS best if you can run a cable instead. The reliability will be much better.

Ray Taylor

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LennonNZ

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#522503 17-Sep-2011 23:43

Ethernet over Cat5/6 cable (in a good wind) will only run 100M so 80M might be too far for Cat5/6.

You could get a couple of copper->fibre media convertors and run SingleMode Fibre (cheaper than SingleMode for that short distance) below ground or via or a couple of cheap ubiquity wireless AP's over the ground (for that distance you can cheaply get 80-90Mbps over it)

raytaylor

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#522521 18-Sep-2011 00:53

100mbit ethernet is rated up to 100m over standard cat5e
http://en.wikipedia.org/wiki/Ethernet_over_twisted_pair

I have had no problems pushing it to 110-120m on some projects.

Dont use cheap stranded or aluminuim cat5 - make sure its the normal solid copper core.

Ray Taylor

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webwat

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#522815 19-Sep-2011 01:17

LennonNZ: Ethernet over Cat5/6 cable (in a good wind) will only run 100M so 80M might be too far for Cat5/6.

You could get a couple of copper->fibre media convertors and run SingleMode Fibre (cheaper than SingleMode for that short distance) below ground or via or a couple of cheap ubiquity wireless AP's over the ground (for that distance you can cheaply get 80-90Mbps over it)

I think you meant Multimode fibre, the interfaces being cheaper than Single mode... Still quite enough reach for an 80m link. If you plan to put nodes at each end of the cable then copper also ok, and Cat6 would give you headroom to handle any problems at the edge of 1000baseT reach. If you dont need it to be gigabit initially, at least you may need to allow for gigabit/HDTV in future. Fibre allows you to go faster again, but I can't see the point for such a short distance unless there is likely to be different Earth Potentials at each end.

Time to find a new industry!

PenultimateHop

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#522830 19-Sep-2011 07:16

webwat: Fibre allows you to go faster again, but I can't see the point for such a short distance unless there is likely to be different Earth Potentials at each end.

Electrical isolation is a pretty good motivator. I've recently had some bad experiences with earth potentials killing kit on a copper Ethernet link between a house and a shed.

Throw in some more fiber while you're there and you've got yourself the starting of a community 'nearlynet' fabric!

chevrolux

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#522970 19-Sep-2011 12:15

If you are running underground cat 6 in a 50mm pipe with no other cables then there wont be any trouble with electrical noise. And with it being in a pipe you can easily blow a fibre through in the future if need be.

stuffed

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Ultimate Geek

#522979 19-Sep-2011 12:43

In our village our community association has installed 100mm or 50mm ducting covering the whole CBD. We have done this over the last 5 years whenever there has been road works and now our council has installed a 100mm service duct as well down the whole main street.

Roll out fibre – we are ready!

Why work on Wednesday and stuff up 2 good long weekends