Quectel M35 User Manual

GSM/GPRS Module Series
M35 User Manual
M35_User_Manual Confidential / Released 28 / 85
these configurations, the URC ―RDY‖ would be received from the UART Port of the module every time
when the module is powered on. For more details, refer to the section ―AT+IPR‖ in document [1].
2. AT command response indicates module is turned on successfully, or else the module fails to be
turned on.
The other way to control the PWRKEY is through a button directly. A TVS component is indispensable to
be placed nearby the button for ESD protection. For the best performance, the TVS component must be
placed nearby the button. When pressing the key, electrostatic strike may generate from finger. A
reference circuit is shown in the following figure.
PWRKEY
S1
Close to
S1
TVS
Figure 7: Turn On the Module with a Button
The turn-on timing is illustrated as the following figure.
VDD_EXT
(OUTPUT)
V
IL
<0.1*VBAT
V
IH
> 0.6*VBAT
VBAT
PWRKEY
(INPUT)
EMERG_OFF
(INPUT)
54ms
STATUS
(OUTPUT)
800ms
>1s
OFF
BOOTING
MODULE
STATUS
RUNNING
T
1
Figure 8: Turn-on Timing

Quectel M35 Specifications

General

Brand	Quectel
Model	M35
Category	Control Unit
Language	English