Will this just be for ADSL usage or will there be file transfers over the link as well?
I would suggest you use LocoStations for the link. There is a 2.4Ghz and 5.8Ghz version of each, but 2.4 should be sufficient if it is a small amount of data. They are also slightly cheaper than the 5Ghz products.
http://www.scoopdistribution.co.za/product_info.php?products_id=1029
Looks really awesome!
I take it the antenna + router etc is inside? What is the maximum distance you can do with 2 of these?
Everything is built inside the enclosure. It also has an IP65 rating for weather resistance.
We usually don't advise clients to exceed 2km with these, but results will vary based on different types of interference environments.
I'm assuming this device comes without a directional antennae? I've seen up to 10km reached with a nice well placed directional antenna
In any case, this should work. However, question is, does the device have the ability to take an extra antenna if you do decide to go directional?
I think the enclosure is a 8dbi dual polarity directional antenna.
I personally prefer the bullets: http://www.scoopdistribution.co.za/product_info.php?cPath=101_75&products_id=880
Basically the radio attaches directly to the directional antenna. But for a beginner, the nanostations (loco) are much easier to setup, without having to think too much about waterproofing and insulation issues on you interconnects
Loco's look pretty cool to me. What is the warranty of these?
If I really wanted to cheap out on this could I just buy 2x directional antenna's, attach one to my ADSL at the office and attach another to a cheap indoor router and point them at eachother?
http://www.scoopdistribution.co.za/product_info.php?products_id=584
What cable would I need to connect this?
Although this is possible it is not the type of installation method I would recommend.
If you absolutely had no choice but to attach this external antenna to an indoor router, you would use a RP-SMA-Ntype cable:
http://www.scoopdistribution.co.za/product_info.php?products_id=390