3  Deployment 
3.1  AP Placement & Guidelines 
3.1.1  General Recommendations 
-  Position the APs above obstructions. 
-  Position the APs vertically near the ceiling in the center of each coverage area, 
if possible. APs are designed to be installed vertically, either standing up in a 
plenum or hanging from a ceiling, to create the largest coverage area per AP. 
Hanging the AP from the ceiling provides the best coverage. 
-  Position APs in locations where users are expected to be. For example, large 
rooms are typically a better location for APs than a hallway. 
-  Place APs no more than 40 meters apart from each other. Placing APs further 
apart almost always results in poor coverage. 
-  Do not mount APs outside buildings. 
-  Do not mount APs on building perimeter walls unless the operator wants to 
provide coverage outside the building. 
-  Important: Do not mount AP antennas within one meter (3 feet) of any metal 
obstructions. The radio frequency waves from the APs are blocked and/or 
reflected by metal objects, such as ducts, conduit, pipes, bookcases, elevator 
shafts, stairwells, and walls. 
 
3.1.2  Three Sample Solutions to AP Placement Problems 
In the first example, there is a large concrete wall in the middle of one coverage area.