Reset Function - SIMCom Wireless Solutions SIM7600A-H User Manual

For details about "AT+CPOF" and "AT+CPMVT", please refer to Document [1].
These procedures will make modules disconnect from the network and allow the software to enter a
safe state and save data before modules are powered off completely.
The power off scenario by pulling down the PWRKEY pin is illustrated in the following figure.
PWRKEY
( Input )
STATUS
( Output )
UART Port
USB Port
Table 9: Power off timing and Electronic Characteristic
Symbol Parameter
The active low level time pulse on PWRKEY pin to
T
off
power off module
The time from power-off issue to STATUS pin output
T
off(status)
low level(indicating power off )*
T The time from power-off issue to UART port off
off(uart)
T The time from power-off issue to USB port off
off(usb)
The buffer time from power-off issue to power-on
T
off-on
issue
3.2.3

Reset Function

Module can be reset by pulling the RESET pin down to ground.
Note: This function is only used as an emergency reset when AT command "AT+CPOF" and the
PWRKEY pin all have lost efficacy.
SIM7600A-H_User Manual_V1.00
T
off
T
off(status)
T
off(uart)
Active
T
Active
Figure 10: Power off timing sequence
Smart Machine Smart Decision
T
off-on
Undefined
off(usb)
Undefined
Min.
2.5
22
15
15
0
24
T
on
Time value
Unit
Typ. Max.
-- -- s
- - s
- - s
- - s
- - s
2017-11-24