User's Manual

Confidential Preliminary – Subject to Change
 2010 China Mark, Ltd. T/A Montage Asia Page 18 of 19
LEDs
The two status LEDs directly convey the status of the GSM and GPS subsystems as
described in the table. Indirectly, through their absence of a valid indication, they also
provide power and operational status. These LEDs are color coded and located as shown
in Figure 7.
LED
Status
Green
On: GPS satellites acquired
Flash: 250ms/250ms duty cycle indicates GPS satellite search is in progress
Off: GPS subsystem fault
Red
On: Indicates GPRS connection is made
Flash: 250ms/250ms duty cycle indicates GSM subsystem initialization
Off: GSM subsystem fault