User Manual

Chapter 3: Operation
98-148232-B Power-saving 32
For configuration with AT commands, use the AT command _IPWSAVSCHD as follows:
1. Set the idle time before power save:
AT_IPWSAVSCHD=<psmode>,<psvalue>
Example: AT_IPWSAVSCHD=IDLE_TRG,15
In this example, the power save mode is idle time (IDLE_TRIG), and the idle time before
the terminal enters power save mode is 15 minutes.
For configuration with the web interface, see Power save (Settings) on page 71.
Wake up on daily basis
Daily wake up is a method to save power by setting a timer to regularly wake up the terminal.
When this is used in combination with the output pin that reflects whether the terminal is
awake, it allows for power efficient regular operation of M2M equipment, e.g. for transmission
of environmental probe measurements. For information on the “Terminal ready” output pin
see I/O connector (X5) on page 91.
To configure wake up on daily basis
For configuration with AT commands, use the AT command _IPWSAVSCHD as follows:
1. Set the time of day that the terminal must wake up from power save:
AT_IPWSAVSCHD=<psmode>,<psvalue>
Example: AT_IPWSAVSCHD=TOD_TRG,24:00
In the example above, the power save mode is the Time Of Day (TOD), and the time of day
to wake up from power save is 24:00.
For configuration with the web interface, see Power save (Settings) on page 71.
Wake up on input pin (GPI)
The Request wake up pin (pin 1, input) allows the M2M equipment to signal to the terminal
whether it should wake up (active) or attempt to go into power save mode.
In the web interface you can:
• Enable/disable the input pin
• select the polarity of the input pin (Active high/low).
See Power save (Settings) on page 71 and I/O connector (X5) on page 91.
Important
Remember to configure minimum one of the wake up functions described below
- otherwise the EXPLORER 540 will not be able to enter power save mode.
Note
If the wake-up time of day is set to “0”, the “Wake up time of day” function is
disabled!