I would like to know hoe to make wireless connection between multiple office buildings in 500mtrs distance. what are the equipments required to use to establish internet connectivity in all 4 offices. all 4 offices have clear line of sight. How do i establish this point to multipoint wireless connection?.
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Also you should note that the 3 offices that connect to the office serving as multipoint will share the bandwitdh meaning that if you use G APs (most likely) then you´ll have 54 MB shared between the 3 offices. So if the servers are located at the multipoint site and you have heavy traffic from the 3 offices they might end up making a mess of things.
There is alllottt to consider. Its never as easy as sticking up two aceess points.
Just to name a few,
How reliable does it have to be? Failover?
Channel allocations? - Wide Channels?
Frequency range?
Security Models? - What if someone is bored and decided to slowly probe your network for data?
Interference? - Can cause poor Quality of service
You will have to start with a site plan and do a complete servey of the area, and a budget plan before starting.
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by: Darr247Posted on 2008-12-02 at 21:20:15ID: 23083415
> all 4 offices have clear line of sight.
clear line of sight to/from what?
What is the layout of the 4 buildings?
A rough drawing would work. Doesn't need to be anything fancy.
Have you walked around the area with a laptop running NetStumbler to see what other nearby wireless networks might interfere with your plans?
Here are some antennae and cables to consider...
24 dBi - http://www.hyperlinktech.c
Cables - http://www.hyperlinktech.c
Linksys uses RP-TNC; D-Link uses RP-SMA (not all models of either brand have detachable antennae); et cetera.
24 dBi - http://www.wifi-link.com/p
Cables - N-male to N-male - http://www.wifi-link.com/p
RP-TNC - http://www.wifi-link.com/p
RP-SMA - http://www.wifi-link.com/p
Either of those are rated up to 10km, so 500m should be no problem.
How many of those (and APs to use as bridges) you need depends on how the buildings are arranged.
Each antenna should be mounted at least 20 feet off the ground to provide 'fresnel zone' clearance, so the N-male to N-male cables will need to be long enough to reach the ground potential equalizers (despite what it says on the page, they are NOT lightning arrestors... there is nothing that will save your antenna or AP from a direct lightning strike!) - http://www.wifi-link.com/p