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WA_DEV_FEX20_UGD_002
Rev 002
April 26, 2010
53
6. Signals and Indicators
6.1. Alarm Mode
The Fastrack Xtend can be turned on using the Alarm mode when power supply is applied. The
Fastrack Xtend will remain in Low Power mode until the alarm is triggered to start the Fastrack Xtend
up.
Note:
Refer to section 5.1.1.2 ON/OFF Pin for more information on how to turn the Fastrack Xtend ON or
OFF using the ON/OFF pin.
Table 30: 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 Fastrack Xtend remains ON.
2
Pulled ON/OFF PIN to
GND
4.75V to 32V supply is
applied.
The Fastrack Xtend remains ON.
3
AT+CPOF
4.75V to 32V supply is
applied. (The ON/OFF signal
remains at GND.)
The Fastrack Xtend turns OFF and
will remain OFF until the Alarm mode
is activated to turn the device ON.
Note:
The Fastrack Xtend’s clock must be set before Alarm mode is activated. To set the clock, refer to the
AT+CCLK
command of document [7] Firmware 7.4a
AT Commands Manual (Sierra Wireless
Software Suite 2.31)/Firmware 7.4 AT Commands Manual (Sierra Wireless Software Suite 2.30).
6.2. BOOT Signal Connection
A specific control pin, BOOT, is available to download to the Fastrack Xtend. 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 Fastrack Xtend 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 Fastrack Xtend 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 [7] Firmware 7.4a
Commands Manual (Sierra Wireless Software Suite 2.31)/Firmware 7.4 AT Commands Manual
(Sierra Wireless Software Suite 2.30) 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.
Содержание AirLink FXT Series
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