User's Manual

TOBY-R2 series - System Integration Manual
UBX-16010572 - R04 System description
Page 17 of 147
Mode
Description
Transition between operating modes
Active
Module is switched on with application
interfaces enabled or not suspended: the
module is ready to communicate with an
external device by means of the application
interfaces unless power saving configuration is
enabled by AT+UPSV (see 1.9.1.4, 1.9.2.4 and
u-blox AT Commands Manual [2]).
When the modules are switched on by an appropriate power-on event
(see 1.6.1), the module enter active-mode from not-powered or
power-off mode.
If power saving configuration is enabled by the AT+UPSV command,
the module automatically switches from active to idle-mode whenever
possible and the module wakes up from idle to active-mode in the
events listed above (see idle-mode to active-mode transition description
above).
When a RF Tx/Rx data or voice connection is initiated or when RF Tx/Rx
is required due to a connection previously initiated, the module
switches from active to connected-mode.
Connected
RF Tx/Rx data connection is in progress.
The module is prepared to accept data signals
from an external device unless power saving
configuration is enabled by AT+UPSV (see
sections 1.9.1.4, 1.9.2.4 and u-blox AT
Commands Manual [2]).
When a data or voice connection is initiated, the module enters
connected-mode from active-mode.
Connected-mode is suspended if Tx/Rx data is not in progress, due to
connected discontinuous reception and fast dormancy capabilities of
the module and according to network environment settings and
scenario. In such case, the module automatically switches from
connected to active mode and then, if power saving configuration is
enabled by the AT+UPSV command, the module automatically switches
to idle-mode whenever possible. Vice-versa, the module wakes up from
idle to active mode and then connected mode if RF Tx/Rx is necessary.
When a data connection is terminated, the module returns to the
active-mode.
Table 5: TOBY-R2 series modules operating modes description
Figure 2 describes the transition between the different operating modes.
Switch ON:
• Apply VCC
If power saving is enabled
and there is no activity for
a defined time interval
Any wake up event described
in the module operating
modes summary table above
Incoming/outgoing call or
other dedicated device
network communication
No RF Tx/Rx in progress,
Call terminated,
Communication dropped
Remove VCC
Switch ON:
• PWR_ON
• RTC alarm
• RESET_N
Not
powered
Power off
ActiveConnected Idle
Switch OFF:
• AT+CPWROFF
Figure 2: TOBY-R2 series modules operating modes transitions