Integration Guide
Version 1.01
6.8.6
System Shutdown Methods
There are several ways to control the modem when using either the PWR_CTL_SIGNAL signal or the
RADIO_PWR/RST signal.
Figure 14 shows a power sequence when the PWR_CTL_SIGNAL signal is used to power up.
BATT
RADIO_PWR/
RST
PWR_CTL
50ms
_SIGNAL
System
State
Figure 14 Power On Using Power Control Signal
GSM0108PB001
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1.01 – 01/21/05