This attribute is used to disable the TrigEnable if no PLC containing a Group ID matching the CM's TrigGroupId in a Trigger Message Block is received within the timeout period. The CM must timeout the test after TriggerEnableTimeout seconds from the time when the TriggerEnable was set to 'true'. A value of 0 indicates that no timeout is enforced, in this case the CM must enable the test until it completes, note in this case, the trigger could be enabled indefinitely. This value can only be changed while a test is not in progress. An attempt to set this value while the value of 'docsPnmCmDsOfdmSymMeasStatus' is 'busy' will return 'inconsistentValue'.