Cisco Aironet 1850 Series, Deployment Manual

Page: 19 / 67

Revised: January 25, 2017,
Installations Inside and Around Elevators
Elevator coverage can sometimes be accomplished by placing APs in the near field of an elevator, typically on each floor near the
elevator door. Because, elevators often have metal doors and the shafts are often concrete or contain other materials that degrade
Wi-Fi coverage. It is important to check the coverage inside the elevator. Though such coverage can be challenging, it is often do-able,
especially if the elevator is only a few floors.
High rise elevators are more challenging because roaming issues are problematic; the client is cycling through a large number of APs
quickly. Some companies that do in-elevator advertising put a patch antenna on the floor inside the shaft and a patch antenna on the
bottom of the elevator car, while other companies use leaky coaxial cable running on the side of the shaft.
When installing any Wi-Fi equipment inside the elevator cars or shafts, local regulations need to be followed. Because, many times
such installations are prohibited either for safety reasons or because the building owner or local fire department may prohibit the
same. Only elevator repair persons or contractors who have experience with this kind of work should be in those areas.