Telit Wireless Solutions GE863-QUAD - Manual (Page 13)

GE863-QUAD
GE863-PY
1vv0300715 Rev. 1 - 19/09/06
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• by software command (see GE863-QUAD/PY Software User Guide)
• by hardware shutdown
When the device is shut down by software command or by hardware shutdown, it issues to the
network a detach request that informs the network that the device will not be reachable any more.
3.2.1 Hardware shutdown
To turn OFF the GE863-QUAD/PY the pad ON# must be tied low for at least 1 second and then
released.
The same circuitry and timing for the power on shall be used.
The device shuts down after the release of the ON# pad.
TIP: To check if the device has powered off, the hardware line PWRCTL should be
monitored. When PWRCTL goes low, the device has powered off.
3.3 Hardware Unconditional Reboot
To unconditionally Reboot the GE863-QUAD/PY, the pad RESET# must be tied low for at least 200
milliseconds and then released.
The maximum current that can be drained from the ON# pad is 0,15 mA.
A simple circuit to do it is:
RESET#
Unconditional Reboot
impulse
GND