GSM0128IG001
31
Revision Draft – 9/22/08
6.8.4.1 Turning ON the Enabler IIG
Pulling the PWR_CTL line on the Enabler IIG LOW for at least 50ms (after Vbat is applied and stabilized) is
required to turn it ON. Section 6.8.43 describes various ways to provide the signal.
Do not use a pull-up resistor on the PWR_CTL line since the line is pulled up internal to the modem.
6.8.4.2 Turning OFF the Enabler IIG
The Enabler IIG can be turned OFF by either a low pulse on the PWR_CTL line or, or by a software
command (ATt$OFF - see AT command guide for further information). Section 6.8.4.3 describes various
ways to provide the signal.
6.8.4.3 Using the Power Control Signal
Typical use powering module on/off with a switch:
Figure - 9 - Power Control Switch
!
*
The OFF Delay is controlled by the
AT$OFFDLY command. A value of 0 disables
the PWR_CTL line from turning the module
off. 0 is the default value.
To enable the module to switch-OFF via
PWR_CTL one must set AT$OFFDLY to a
value other than 0. The valid range is 100 to
1000 milliseconds.
