I65/I56I HARDWARE DESCRIPTION VERSION
1.00
Figure 4:
Power-on by ignition signal
If the module is configured to a fix baud rate, the GSM/GPRS engine of the
I56/I56i will send the result code ^SYSSTART to indicate that it is ready to
operate. This result code does not appear when autobauding is active.
Ensure that V
VC5
does not fall below 4,7 V while the SOFT_ON line is driven.
Otherwise the module cannot be activated.
To switch on the I56/I56i module the SOFT_ON signal needs to be
set to HIGH level for at least 100 ms.
For switching the module off refer to the next section
It is not recommended to switch the module on and off by means of the
power supply (e.g. by tying the SOFT_ON constantly to HIGH). The
module will so have no possibility to log-off correctly from the network and
this will cause problems at the next attempt to register.
5.4.3.3 Turn on the GSM/GPRS engine of I56/I56i using the POWER signal
, the charging adapter can be connected
regardless of the module’s operating mode (except for Alarm mode).
If the charger is connected to the charger input of the external charging
circuit and the module’s POWER pin while I56/I56i is off, processor
controlled fast charging starts (see chapter
restricted mode, referred to as Charge-only mode where only the charging
algorithm will be launched. During the Charge-only mode I56/I56i is neither
logged on to the GSM network nor are the serial interfaces fully accessible.
To switch to normal operation and log on to the GSM network, the
SOFT_ON line needs to be activated.
5.4.3.4 Turn off the GSM/GPRS engine of I56/I56i module
To switch the module off the following procedures may be used:
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