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Rev 7.2
June 19, 2013
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6. Signals and Indicators
6.1.
Alarm Mode
The FX Series can be turned on using the Alarm mode when power supply is applied. The FX Series
will remain in Low Power mode until the alarm is triggered to start the FX Series up.
Note:
Refer to section 5.1.1.2 ON/OFF Pin for more information on how to turn the FX Series ON or OFF
using the ON/OFF pin.
Table 36.
Alarm Mode (Low Power Mode)
Steps
State
Power Supply
Operation
1
AT+CALA=“YY/MM/DD,H
H:MM”
4.75V to 32V supply is
applied.
The alarm is set.
The FX Series remains ON.
2
Pulled ON/OFF PIN to
GND
4.75V to 32V supply is
applied.
The FX Series remains ON.
3
AT+CPOF
4.75V to 32V supply is
applied. (The ON/OFF signal
remains at GND.)
The FX Series turns OFF and will
remain OFF until the Alarm mode is
activated to turn the device ON.
Note:
The
FX Series’ clock must be set before Alarm mode is activated. To set the clock, refer to the
AT+CCLK
command of documents [1] Open AT Application Framework AT Commands Interface
Guide and [2] AirPrime SL808xT and Q2698 Open AT Framework Commands Interface Guide.
6.2.
BOOT Signal Connection (FXT009 only)
A specific control pin, BOOT, is available to download to the FXT009. Specific PC software, provided
by Sierra Wireless, is needed to perform this download, specifically for the first download of the Flash
memory.
Caution:
This signal must not be connected. Its use is strictly reserved for Sierra Wireless or competent
retailers.
6.3.
RESET Signal Connection
This signal is used to force a reset procedure by providing the FX Series with a LOW level that lasts at
least 200µs (when the power supply is already stabilized). It is activated by either an external Reset
signal or by an internal signal (from the Reset generator); and is automatically driven by an internal
hardware during the power ON sequence.
Note:
The FX Series remains in Reset mode for as long as the Reset signal is held LOW.
A software reset is always preferred to a hardware reset. Refer to document documents [1] Open
AT Application Framework AT Commands Interface Guide and [2] AirPrime SL808xT and Q2698
Open AT Framework Commands Interface Guide for more information regarding software resets.
This signal may also be used to provide a reset to an external device when the pin is configured as an
output. If no external reset is necessary, this input may be left open.
When used (as an emergency reset), it has to be driven by either an open collector or an open drain
output.
Содержание AirLink FX100
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