Chapter 3: Operation
98-148232-E Power-saving 41
For configuration with the web interface, see Power save on page 88.
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 116.
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 UTC time.
For configuration with the web interface, see Power save on page 88.
Wake-on-LAN
Wake-on-LAN is a method to wake up the terminal from power save mode by sending a so-
called magic packet from the locally connected equipment to the LAN interface in the terminal.
In the web interface you can enable or disable the Wake-on-LAN function. See Power save on
page 88.
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 on page 88 and I/O connector (X5) on page 116.
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.
The EXPLORER 540 operates with UTC time.
If the wake-up time of day is set to “0”, the “Wake up time of day” function is
disabled!
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