User guide

EG_GenPro2xe_1003_UG_005_UK Page 43 / 63
Descriptions and non-contractual illustrations in this document are given as an indication only.
ERCO&GENER reserves the right to make any modifications.
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7.7.2 RESET sequence
To activate the emergency RESET sequence, the RESET signal must be put to a low level during at least 10
ms.
A soon as the modem has been RESET, if a SIM card is inserted inside the SIM reader, you must wait for
the end of the initialization before accessing it again. Moreover, the acquisition time of a GPS position will
have to be taken into consideration.
• Using the RESET does not restore the factory parameters.
7.8 WatchDog
The Hardware WatchDog function allows the surveillance of the modem software activity: the Software
management of the WatchDog is implanted in the embedded application by default. In the case of a
development (EGM) it must be implanted in the embedded application of the final customer.
If the software activity is interrupted, the WatchDog component starts a hardware Reset.
The WatchDog function is active only if the SIM card is present. That’s why, it is imperative to remove the
SIM card during a Firmware updating.