Any recommendations for local high speed point-to-point network connections?

Hi all. I need to connect networks together between two buildings that are 130 metres apart. As is always the way, the higher the network speed, the better, but it does need to be well above 100Mbps, with a preference for 1Gbps, as there will be at least several people using this link, using network-intensive applications on a regular basis. We have quotes from a couple of wireless point-to-point providers, but I am also looking at alternatives, such as laser, as I am concerned about wireless performance, especially with a tramline running between the two buildings! For what it's worth, we have used Nanostation M5s in the past (and in a different location) with only modest success; the M5s work well but simply did not have the bandwidth required for the number of people working from the remote point. So far we have not had much luck with finding local laser point-to-point network providers who will sell and install gear. Does anyone have any recommendations (for laser or other alternatives)? Thanks in advance, Graeme

The question is how much you have to spend. There are options such as laser links and 60 GHz point to point links that would meet your sped requirements over that distance, but not cheap. At the time I was looking into this sort of gear for a work project (that never eventuated), there wasn't much change out of $10k for the cheapest option. Probably somewhat cheaper these days though, it was several years ago. Laser links also have disadvantages on foggy days! :). 60 GHz has a range limitation of just over 1km, due to absorption by oxygen in the atmosphere, which would work to your advantage, less leakage for outsiders to intercept. On Monday, March 4, 2013, Graeme Cross wrote:
Hi all.
I need to connect networks together between two buildings that are 130 metres apart. As is always the way, the higher the network speed, the better, but it does need to be well above 100Mbps, with a preference for 1Gbps, as there will be at least several people using this link, using network-intensive applications on a regular basis.
We have quotes from a couple of wireless point-to-point providers, but I am also looking at alternatives, such as laser, as I am concerned about wireless performance, especially with a tramline running between the two buildings!
For what it's worth, we have used Nanostation M5s in the past (and in a different location) with only modest success; the M5s work well but simply did not have the bandwidth required for the number of people working from the remote point.
So far we have not had much luck with finding local laser point-to-point network providers who will sell and install gear.
Does anyone have any recommendations (for laser or other alternatives)?
Thanks in advance, Graeme _______________________________________________ luv-talk mailing list luv-talk@lists.luv.asn.au <javascript:;> http://lists.luv.asn.au/listinfo/luv-talk

Graeme Cross <gcross@fastmail.fm> wrote:
We have quotes from a couple of wireless point-to-point providers, but I am also looking at alternatives, such as laser, as I am concerned about wireless performance, especially with a tramline running between the two buildings!
Am I right in assuming that the roadway rules out the possibility of running a fibre cable between the buildings? I don't know what form of state/local government approval you would need for that, even if you could easily run it high overhead for example.

On 04/03/2013, at 18:05, Jason White <jason@jasonjgw.net> wrote:
Am I right in assuming that the roadway rules out the possibility of running a fibre cable between the buildings? I don't know what form of state/local government approval you would need for that, even if you could easily run it high overhead for example.
any time you run a cable across public land, you require a carriage license IIRC. We thought about doing this when linking up the high rise estates, and ended up going with gigabit Free Space Optics instead. I don't know how much it cost, though, since I was only involved from the technical side

Jason White wrote:
Graeme Cross <gcross@fastmail.fm> wrote:
We have quotes from a couple of wireless point-to-point providers, but I am also looking at alternatives, such as laser, as I am concerned about wireless performance, especially with a tramline running between the two buildings!
Am I right in assuming that the roadway rules out the possibility of running a fibre cable between the buildings? I don't know what form of state/local government approval you would need for that, even if you could easily run it high overhead for example.
Last time I looked (a looong time ago) running cable over public land also turned you into a carrier, i.e. like telecom australia, and you had to support 000 on the line and crap like that. Which is why you had these long cable runs out in the bush that turn into a 2m laser link every time they had to hop a road.

On Mon, Mar 4, 2013, at 06:05 PM, Jason White wrote:
Graeme Cross <gcross@fastmail.fm> wrote:
We have quotes from a couple of wireless point-to-point providers, but I am also looking at alternatives, such as laser, as I am concerned about wireless performance, especially with a tramline running between the two buildings!
Am I right in assuming that the roadway rules out the possibility of running a fibre cable between the buildings? I don't know what form of state/local government approval you would need for that, even if you could easily run it high overhead for example.
Hi Jason. We looked into fibre initially, and it seems to not be an option - especially if you want to go above a tram line instead of underground! Regards Graeme

I am currently studying for some Cisco networking certifications and have been thinking about this since the first email.. It just occurred to me that you could quite possibly run multiple (on different channels) wireless N point-to-point bridges and load balance between them. It would require a fair amount of initial equipment but because you wouldn't be renting any lines that's all you'd have to pay.. I have done some point-to-point wireless networking in the labs at RMIT but on older b/g equipment. For antennas you'd just run either a bunch of yagis or panels... On Mon, Mar 4, 2013 at 8:53 PM, Graeme Cross <gcross@fastmail.fm> wrote:
On Mon, Mar 4, 2013, at 06:05 PM, Jason White wrote:
Graeme Cross <gcross@fastmail.fm> wrote:
We have quotes from a couple of wireless point-to-point providers, but I am also looking at alternatives, such as laser, as I am concerned about wireless performance, especially with a tramline running between the two buildings!
Am I right in assuming that the roadway rules out the possibility of running a fibre cable between the buildings? I don't know what form of state/local government approval you would need for that, even if you could easily run it high overhead for example.
Hi Jason.
We looked into fibre initially, and it seems to not be an option - especially if you want to go above a tram line instead of underground!
Regards Graeme _______________________________________________ luv-talk mailing list luv-talk@lists.luv.asn.au http://lists.luv.asn.au/listinfo/luv-talk
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participants (6)
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Graeme Cross
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hannah commodore
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Jason White
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Tom Wilkins
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Tony Langdon
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Trent W. Buck