Smart Machine Smart Decision
SIM5320JE-TE_Hardware Design_V1.01
2012-07-10
27
completely powering the module off.
●
Method 1: Power off SIM5320JE-TE by pulling the POWER_ON pin down
●
Method 2: Power off SIM5320JE-TE by AT command
User can power off the SIM5320JE-TE by pulling POWER_ON down for a specific time. The power off
scenario is illustrated in the following figure.
Figure
18
: Power off timing sequence
Table
7
: Power off timing
Parameter
Description
Time value
Unit
Toff
The time pulling POWER_ON down to power off
0.5< Toff<5
s
TpD-
The time to indicate disconnecting from the network
>7
s
Tpw-
The time to indicate the module power off completely
>7.5
s
Tuart_off
The time to disable UART
>6
s
Tusb_off
The time to disable USB
>7.5
s
User can also use the AT command
“
AT+CPOF
”
to power down the module. After that, the AT commands
cannot be executed any longer. The module enters the POWER DOWN mode, only the RTC is still active.
For details, refer to
Document [1]
.
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