2-7 
Item  Requirements 
Lightning 
rod
 
In a plain area, the protection angel of the lightning 
rod should be less than 45 degrees. In a 
mountainous area or lightning intensified area, the 
protection angle should be less than 30 degrees. 
The lightning protection ground (for example, the 
ground of the lightning rod) and the protection 
ground of the equipment room should be connected 
to the same earthing conductor. 
 
Feeder
 
z  The antenna support is ready and in accordance 
with the design requirement.  
z  A feeder lightning rod is already installed and 
grounded according to the design requirement.  
Outdoor 
lightning 
arresters
 
In case of outdoor installation, a power supply 
lightning arrester, a feeder lightning arrester and a 
network port lightning arrester are required. The 
power supply lightning arrester and feeder lightning 
arrester are located close to the AP while the 
network port lightning arrester is installed close to 
the peer device where the network cable goes out of 
the room. 
 
Network 
cable
 
In case of outdoor installation, make sure to use a 
shielded network cable and the interconnected 
devices are well grounded. 
 
 
After you have completed the preparations, you can start installing the 
AP. For details, refer to 
3  "Installing the AP" on page 3-1.