Something you need to know if you plan to take any level of Cisco wireless certifications and more importantly in the field is the status LEDs on the Cisco Wireless CB21.
Easy way to remember:
Alternate blinking; think of SCANNING back and forth looking for a network
Both LEDs blinking slowly; means connected. Think of a pulse
Both LEDs blinking fast; transfer data
The 2 other status LEDs you need to worry about are the POWER SAVE indications. Only the GREEN indicator is used.
