Temperature Alarms - Nortel Meridian SuperNode SL-100 Reference Manual

9-4 Hardware maintenance tools
To help pinpoint a power supply problem, the master XSM identifies:
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Temperature alarms

Each column in System Options 111-211 is cooled by a blower unit in the
pedestal.
All IPECs are equipped with the Extended System Monitor (XSM,
NT8D22AC). The XSM generates an alarm if the air leaving the column
exceeds 55o C (131o F). This thermal alarm may indicate a loss of air
conditioning in the room, loss of ventilation in the column, or a problem with
the blower unit.
If the temperature reaches 70o C, an alarm causes XSM to trip the power
circuit breakers to the column.
555-4001-129 Standard 08.01 November 2000
the column with the fault (XSM 0-63).
the module (0-3) in that column.