Which outdoor access points to connect two buildings (500ft distance)?
We have a client that needs to wirelessly connect two buildings at their location, around 500ft over a parking lot. There are no significant line-of-sight obstructions. Which outdoor access points would be most suitable for this, and what is the maximum speed we can expect from such a connection?
Next, you can use either indoor access point or outdoor/mesh access point. I'd recommend indoor. Since it's going to be point-to-point, no need to get an AP that can support 802.11n because it's not supported. This brings your choices down to a Cisco 1242 (dual radios).
In regards to antennaes, AIR-ANT2410Y is a contender. Have a look at the complete portfolio for more information.
Cisco Aironet 2.4 GHz and 5 GHz Antennas and Accessories