Siemens TC37 Module At Command Reference page 155

AT Command Set
Reference Note
Important:
Siemens
· Please refer to the "Hardware Inferface Description" supplied with your GSM
engine for specifications on critical temperature ranges.
· To avoid damage the module will shut down once the critical temperature is
exceeded. The procedure is equivalent to the power-down initiated with
AT^SMSO.
· The shutdown takes effect no matter whether URCs are enabled or disabled:
URCs indicating the alert level "2" or "-2" are followed by immediate shutdown.
If <n> is 0 the user is not informed before the module shuts down.
· URCs indicating the alert level "1" or "-1" are intended to enable the user to
take appropriate precautions, such as protect the module or battery from
exposure to extreme conditions, or save or back up data etc.
Examples
URCs issued when the operating temperature is out of range:
^SCTM_A: 1
^SCTM_A: 2
^SCTM_B: 1
^SCTM_B: 2
^SCTM_A: -1
^SCTM_A: -2
^SCTM_B: -1
^SCTM_B: -2
Example URCs issued when the temperature is back to normal (URC is output once):
^SCTM_A: 0
^SCTM_B: 0
TC3X_ATC_01_V04.00
Caution: Battery close to overtemperature limit.
Alert: Battery above overtemperature limit. Engine switches off.
Caution: Engine close to overtemperature limit.
Alert: Engine is above overtemperature limit and switches off.
Caution: Battery close to undertemperature limit.
Alert: Battery below undertemperature limit. Engine switches
off.
Caution: Engine close to undertemperature limit.
Alert: Engine is below undertemperature limit and switches off.
Battery temperature back to normal temperature.
Engine back to normal temperature
Page 155 of 204 29.05.2002