Specifications

MC35i AT Command Set
17.4 AT^SCTM
s
m obil e
MC35i_ATC_V01.03 Page 413 of 444 5/7/04
Confidential / Released
EXAMPLE 2
URCs issued when the temperature is back to normal (URC is output once):
17.4.1 Deferred shutdown
In the following cases, shutdown will be deferred if a critical temperature limit is exceeded:
• while an emergency call is in progress
• while a call to predefined number
<phone number> is in progress
• during a two minute guard period after powerup. This guard period has been introduced in order to allow for
the user to make an emergency call or to make a call to
<phone number>. The start of any one of these
calls extends the guard period until the end of the call. Any other network activity may be terminated by shut-
down upon expiry of the guard time.
While in a "deferred shutdown" situation, the engine continues to measure the temperature and to deliver alert
messages, but deactivates the shutdown functionality. Once the guard period is expired or the call is terminated,
full temperature control will be resumed. If the temperature is still out of range, ME switches off immediately (with-
out another alert message).
CAUTION! automatic shutdown is a safety feature intended to prevent damage to the module. Extended usage
of the deferred shutdown facilities provided may result in damage to the module, and possibly other severe con-
sequences.
^SCTM_B: -1 Caution: Engine close to undertemperature limit.
^SCTM_B: -2 Alert: Engine is below undertemperature limit and
switches off.
^SCTM_B: 0 Engine back to normal temperature