Cisco Cisco Aironet 1240 AG Access Point 설치 가이드

If your access point is connected to inline power, do not connect the 
power module to the access point. Using two power sources on the 
access point might cause the access point to shut down to protect 
internal components and might cause the switch to shut down the 
port to which the access point is connected. If your access point 
shuts down, you must remove all power and reconnect only a single 
power source.

To browse to the access point Express Setup page, you must either obtain or 
assign the access point IP address using these methods:

The access point does not have a default IP address

Assign a static IP address by connecting to its console port and accessing 
the access point CLI.

Use a DHCP server (if available) to automatically assign an IP address. 
You can find out the DHCP-assigned IP address by using one of the 
following methods: