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FIBOCOM SU806 Series Hardware Guide
Page 31 of 91
100pF
3s≤t≤6s
10K
47K
KEY_PWR_ON
Figure 3-5 OC drive power on reference design
The power on timing is shown as follows:
VBAT
KEY_PWR_ON
VDD1V85
3.5s≤t≤6s
Other Powers
Figure 3-6 Power on timing
3.2.1.2 Power off
Normal power off: when module in operating mode, pull down KEY_PWR_ON pin 0.6s~6s, user interface
will display selection box (select power off or restart).
Note
：
When the system is abnormal or shutdown, can use force power off method to power off the
module, please use normal method generally, otherwise may cause data loss and other
anomalies.
3.2.1.3 Sleep/Wake up
When module in standby mode, pull down KEY_PWR_ON pin 0.1s~0.5s and then release it, module will
