User's Manual

LTE Module BEC CBRS-12 User Manual
31
Figure 2: DRX Run Time and Current Consumption in Sleep Mode
The following section describes power saving procedure of BEC CBRS-12 .
3.5.1.1. UART Application
If the host communicates with the module via UART interfaces, the following preconditions can let the
module enter into sleep mode.
 Keep DTR at high level (pulled up by default).
 Execute AT+QSCLK=1 command to enable sleep mode.
The following figure shows the connection between the module and the host.
Figure 3: Sleep Mode Application via UART Interfaces
 Driving the host DTR to low level will wake up the module.
 When BEC CBRS-12 has a URC to report, RI signal will wake up the host. Please refer to Chapter
3.17 for details about RI behavior.