Multi-Tech MultiModem EDGE Reference Manual page 258

Unsolicited Result Codes:
URC 1
URCs will be automatically sent to the TA when the temperature reaches or exceeds the critical level or when it
is back to normal.
URC 2
^SCTM_B: <m>
for module (board) temperature
Examples:
Example 1
URCs issued when the operating temperature is out of range:
^SCTM_B: 1
^SCTM_B: 2
^SCTM_B: -1
^SCTM_B: -2
Example 2
URCs issued when the temperature is back to normal (URC is output once):
^SCTM_B: 0
Multi-Tech Systems, Inc. AT Commands for EDGE Modems (S000371G)
Caution: Engine close to over temperature limit.
Alert: Engine is above over temperature limit and switches off.
Caution: Engine close to under temperature limit.
Alert: Engine is below under temperature limit and switches off.
Engine back to normal temperature.
Chapter 17 – Hardware-Related Commands
258