B&B Electronics WLNN-AN(ER,SE,SP.EK)-DP551 - Manual - Manual (Page 86)

86 Airborne Enterprise CLI Reference Manual
17.4 Mode: Wakeup
This mode causes a radio in sleep mode to transition to active or doze mode.
The mode the radio transitions to is the same as the mode it was in prior to
entering sleep mode.
When the command is issued the radio will transition to the previous power state
and will attempt to re-associate with its configured network, if it is available.
The wakeup parameter is not a persistent condition and is not committed to flash
if it was the last pm-mode parameter issued when a commit command is issued.
17.5 Using Sleep Mode
Sleep mode provides the lowest power draw of any operational mode and as
such provides significant advantage when used with battery or power sensitive
applications. However the use and operation of the sleep mode changes
depending upon the state and use of the UART interface, the following will
outline the differences between these conditions.
Table 35 - UART Mode Affect on Sleep Mode
UART Mode CLI Actions
CLI
pm-mode sleep Puts the radio into sleep mode.
pm-mode wakeup
Transitions radio from sleep mode to
either active or doze mode.
Listen wl-sleep-timer
Defines the sleep activity timeout for
the UART.
Pass wl-sleep-timer
Defines the sleep activity timeout for
the UART.
When the UART is in CLI mode the only way for the radio to enter sleep mode is
to issue the pm-mode sleep command. Similarly to leave sleep mode the pm-
mode wakeup command must be issued. In CLI mode it is assumed the host
system is managing the Device Server and control of the power state would be
completely under the
hosts‟ control.
When the UART is in listen mode and the pm-mode has been set to sleep, either
by issuing the pm-mode sleep command or by setting the radio-startup
sleep parameter, the Device Server will wake from sleep mode based upon
UART traffic. When in sleep mode a UART in listen mode, will not be able to
accept incoming connection requests. When UART traffic is detected the radio
will wake from sleep and listen for incoming connection requests, if no requests
are received before the wl-sleep-timer expires, the radio will return to sleep
mode. In this mode the host can manage availability of the device by simply
sending a single character to the radio, lowering the management overhead and
minimizing state changes of the Device Server.
When the UART is in pass mode and a data tunnel has been established the
device server will enter sleep mode only if the wl-sleep-timer is set to a
value greater the zero (0). When is pass mode the data tunnel will remain active
until the inactivity timer wl-sleep-timer expires, when this happens the radio