Fibocom G510 Hardware User Manual page 20

others are initiated by the system.
Incoming Network Data

During Sleep mode, module continues monitoring the GSM network for any incoming data, message or
voice calls. When module receives an indication from the network that an incoming voice call, message or
data is available, it automatically wakes up from Sleep mode to alert the application. When module wakes
up to Idle mode all its interfaces are enabled.
Depending on the type of network indication and the application settings, module may operate in several
methods, which are configurable by AT commands, to alert the application of the incoming data:
a) Send data to the application over the serial interface.
b) Enable the serial interface's Ring Indicator (UART1_RING) signal.
c) LPG status indicator
Control WAKE_UP level by external circuit

WAKE_UP connects to a GPIO on CPU; the external circuit can wake up module by controlling this GPIO.
Please refer to chapter 3.10.4 for details.
 UART1_DTR
Pull UART1_DTR to VDD externally, the same methods as WAKE_UP. Set the module to sleep mode by
AT commands, the duration is determined by <value> in command ats24= [<value>].
Send AT command: ats24=2, set the module to sleep mode after 2s (If there is no data interaction in
UART).
G510 Hardware User Manual
Figure 3- 6 ats24=2, set module to sleep mode after 2s
Page 20 of 42