Installation Guide

Draft 1A - CISCO CONFIDENTIAL
2-14
Cisco Aironet 1240AG Series Access Point Hardware Installation Guide
OL-7293-01
Chapter 2 Installing the Access Point
Powering Up the Access Point
Connecting to an Ethernet Network with Local Power
Caution Be careful when handling the access point; the bottom plate might be hot.
Note If your access point is connected to in-line 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.
Follow these steps to connect the access point to an Ethernet LAN when you are using a local power
source:
Step 1 Connect a Category 5 Ethernet cable to the RJ-45 Ethernet connector labeled Ethernet on the access
point (see Figure 2-9).
Step 2 Connect the power module output connector to the access point’s 48-VDC power port (see Figure 2-9).
Step 3 Plug the other end of the Ethernet cable into an unpowered Ethernet port on your LAN network.
Step 4 Plug the other end of the power module into an approved 100- to 240-VAC outlet.
For information on securing your access point, see the “Securing the Access Point” section on page 2-17.
Powering Up the Access Point
When power is applied to the access point, it begins a routine power-up sequence that you can monitor
by observing the three LEDs on top of the access point. After you observe all three LEDs turning green
to indicate the starting of the IOS operating system, the Status LED blinks green signifying that IOS is
operational. When in an operational status, the Ethernet LED is steady green when no traffic is being
passed and dark during periods when traffic is being passed. The sequence takes about 1 minute to
complete. Refer to Chapter 6, “Troubleshooting,” for LED descriptions.
When the sequence is complete, you are ready to obtain the access point’s IP address and perform an
initial configuration. Refer to Chapter 3, “Configuring the Access Point for the First Time.” for
instructions on assigning basic settings to the access point.
Caution Be careful when handling the access point; the bottom plate might be hot.
Note If your access point is connected to in-line 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.