Ultra Low Power Mode - Sierra Wireless Octave FX30S User Manual

Sierra Wireless FX30S User Guide
Pin 1 (Power)
Pin 3 (On/Off)
Figure 3-6: FX30S On/Off functionality
Typical wake-up time before network attach is 15 seconds.

Ultra Low Power Mode

In Ultra Low Power Mode (ULPM), the FX30S application processor and WWAN radio are
off.
FX30S can be put into ULPM using the "pmtool shutdown" Legato command or the Ultra
Low Power Mode Legato API. Typical wake-up time (including boot and network attach) is
60 to 90 seconds.
The low power micro-controller monitors the following wakeup triggers:
•
•
•
Rev. 5 September 2020
Timer—The timer wakeup must be configured prior to the gateway entering ULPM.
You can use the Legato Timer API or the Legato Power Management tool (pmtool)
command to configure wakeup from ULPM.
Note: The ULPM timer starts when the shutdown command is executed. The FX30S shutdown
process can take up to 30 seconds to complete. For example, if the ULPM timer is set for 60
seconds, Ultra Low Power Mode begins after 30 seconds, and the FX30S wakes up after an
additional ~30 seconds. If the ULPM timer is set to less than 30 seconds, the FX30S may wake
up immediately.
Digital Input I/O 1 —I/O wakeup must be configured prior to the gateway entering
ULPM. I/O 2 must also be connected to ground. You can use the Legato Power API or
pmtool command to configure wakeup from ULPM.
Note: The external digital I/O 1 is routed to two sets of pins on the WP module. The I/O is
routed to a standard digital input as well as ULPM wakeup. See
RS232 DTR signal—DB-9 pin 4 (see
When the DTR signal is "not asserted" (negative voltage), GPIO38 reads as 1. When
the DTR signal is asserted, (positive voltage), GPIO38 reads as 0.
FX30
Internal power circuits
Power input
Enable
Internal GPIO circuits
GPIO58
(power hold) output
GPIO24
(monitors Pin 3) input
If GPIO24 is low (0), Pin 3 is "On".
If GPIO24 is high (1), Pin 3 is "Off".
Table 3-2 on page 41). Pin 4 is routed to GPIO38.
50
Table D-2 on page 79.
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