Power-On Time Sequence - Huawei MG301 Hardware Manual

HUAWEI MG301 B2B Module
HardwareGuide
Table 3-3 Definitions of pins of the power-on/power-off and reset interfaces
Pin No.
20
22

3.4.2 Power-On Time Sequence

Make sure that the MG301 B2B module is powered on at the voltage and operating

temperature in the recommended range. Otherwise, the module may get
damaged or work improperly.
External application interfaces must be powered on after the module is powered

on.
You can power on the MG301 B2B module through the TERM_ON interface. The
software will report relevant information according to the actual settings after the module
is powered on. For example, the AT command automatically reports ^SYSSTART[1]. In
this case, the external VIO interface is enabled and supplies 2.8 V power.
[1] For specific setting information about the power-on/power-off software, see the
MG301 Series Wireless Module AT Command Interface Specification.
Figure 3-4 shows the power-on time sequence.
Figure 3-4 Power-on time sequence
Signal Name I/O
TERM_ON I
RESET I
Huawei Proprietary and Confidential Copyright ©
Huawei Technologies Co., Ltd
Issue 06 (2013-06-13)
Description of the Application Interfaces
Description
Pin for controlling power-on and power-off
Pin for resetting the hardware
HUAWEI
19