User Manual

Building Technologies
Fire Safety & Security Products
1999 Fault Ack
A faulty condition has been detected in one of physical components involved in the function; a fault can be detected internally in the STT11 and via the missing/erroneous start/finish activation feedback; the
event has been acknowledged.
2000 Fault Unack
A faulty condition has been detected in one of physical components involved in the function;a fault can be detected internally in the STT11 and via the missing/erroneous start/finish activation feedback; the
event should be acknowledged by the operator.
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