This object, when read, always returns a value of other(1). The behavior of setting this variable to each of the acceptable values is as follows: Other: Results in a badValue error. maintPORT: Signal PC_Maint enablePORT: Signal PC_Enable disablePORT: Signal PC_Disable startPORT: Signal PC_Start stopPORT: Signal PC_Stop Signals cause an SM_CM_CONTROL.request service to be generated with a control_action of `Signal' and the `variable' parameter set with the appropriate value (i.e., PC_Maint, PC_Enable, PC_Disable, PC_Start, PC_Stop). Ref. ANSI SMT Section 9.3.2. Attempts to set this object to all other values results in a badValue error.