User guide

WA_DEV_GL6100_PTS_001 Rev 002 May 24, 2010 36
GL61x0 Product Technical
Specification and User Guide
Interfaces and Peripherals
6.1.2. LED Status Indicator
The GL61x0 has a red LED that indicates the current operational status of the device.
Table 20: GL61x0 LED Status
GL61x0 State
LED Status
Description
ON
Permanently lighted
The GL61x0 is powered ON, but not registered
in the network.
Slow flash (LED is switched ON
for 200ms, OFF for 2s)
The GL61x0 is powered ON, and registered in
the network.
Quick flash (LED is switched ON
for 200ms, OFF for 600ms)
The GL61x0 is powered ON, registered on the
network, and communication is in progress.
Very quick flash (LED is
switched ON for 100ms, OFF for
200ms)
The GL61x0 is powered ON, but the software
downloaded is either corrupted or non-
compatible ("BAD SOFTWARE").
OFF
OFF
The GL61x0 is either switched OFF, or the
Flash LED has been disabled by the user*.
* The Flash LED can be disabled by the user when in Sleep Mode in order to save power consumption. Refer to
section 10.1 Enabling/Disabling the Flash LED and document [7] Firmware 7.42 AT Commands Manual (Sierra Wireless
Software Suite 2.32) for more information on how to disable the Flash LED using an AT command.
The LED state is set to HIGH during RESET time and undefined during software initialization time.
During software initialization time, and for a maximum of 2 seconds after RESET cancellation, the
LED signal of the GL61x0 is toggling and will not provide any indication of the GL61x0’s status. After
the software initialization time or the 2 seconds after RESET cancellation, the LED will resume to
displaying the true status of the GL61x0.
The following diagram shows the LED state during reset and GL61x0 initialization.
Figure 20. LED State During Reset and Initialization Time