User guide

Rev 3.3 May.02 187
Technical
Specifications
16: Technical Specifications
• LED Operation
• Radio Frequency and
Electrical
Specifications
• Environmental
Specifications
This chapter describes the function of the LED, and provides
technical product data for the AirCard 555 wireless network
card.
LED Operation
The AirCard 555 has a single red/green LED on the antenna
end of the card. The LED operates as follows:
* Amber is used to describe the color of the LED when both red and
green are lit.
Table 16-1: LED Operation
LED Behavior Indicates
Solid amber* The AirCard is powering up.
Blinking amber The AirCard is searching for a channel.
Solid green A call is in progress.
Blinking green The AirCard has acquired a channel and is
in idle mode (no call is in progress).
Solid red An error has occurred.