LISA-U2 series - System integration manual
UBX-13001118 - R27
Features description
Page 155 of 183
C1-Public
The entire temperature range is divided into sub-regions by limits (see
) named t
-2
, t
-1
, t
+1
and t
+2
.
•
Within the first limit, (t
-1
< Ti < t
+1
), the cellular module is in the normal working range, the Safe
Area.
•
In the Warning Area, (t
-2
< Ti < t
.1
) or (t
+1
< Ti < t
+2
), the cellular module is still inside the valid
temperature range, but the measured temperature approaches the limit (upper or lower). The
module sends a warning to the user (through the active AT communication interface), which can
take, if possible, the necessary actions to return to a safer temperature range or simply ignore the
indication. The module is still in a valid and good working condition.
•
Outside the valid temperature range, (Ti < t
-2
) or (Ti > t
+2
), the device is working outside the
specified range and represents a dangerous working condition. This condition is indicated and the
device shuts down to avoid damage.
☞
For security reasons, the shutdown is suspended in case an emergency call in progress. In this
case, the device will switch off at call termination.
☞
The user can decide at any time to enable/disable the Smart Temperature Supervisor feature. If
the feature is disabled, there is no embedded protection against disallowed temperature
conditions.
