Siemens MXL-IQ Operation, Installation, And Maintenance Manual page 100

Operation
Test::Manual_Activate - Test
This provides a remote switch that upon
activation/deactivation of the TRI, the MXL-
IQ reads the module-device address
provided and preforms the operations
outlined above. Thisuse is primarily for, but
not limited to, testing intelligent duct
detectors.
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