Installation guide

6: Technical Specifications
6
LED operation
Radio frequency and
electrical
specifications
Environmental
specifications
Sending GSM
commands to the
network
This chapter describes the operation of the LED and provides
technical data for the AirCard modem.
LED operation
The number and function of the LEDs depends on the type of
AirCard modem you have.
If the AirCard modem has a single LED on the antenna end of
the card beneath the SIM slot, use the following table to
determine the status of the AirCard modem:
Table 6-1: LEDs for AirCard 850 / 860 modem
LED state How to interpret
Solid
amber
a
The AirCard modem is powering up, or a
firmware download is in progress.
Blinking
amber
The AirCard modem is scanning for
service.
Blinking
green
The AirCard modem is in service and
registered on the network.
Solid green A voice call is in progress.
Solid / blinking
red
There is a hardware problem.
Off The AirCard modem is powered down.
a. The LED is red/green. The amber color occurs when both red and
green are lit.
If the AirCard modem has four LEDs on the top of the modem,
use the following table to determine the status of the AirCard
modem:
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